test(backend): add comprehensive testing infrastructure

Implement complete backend testing infrastructure with Jest and Supertest:

Test Setup:
- Configure Jest for Node.js environment
- Add MongoDB Memory Server for isolated testing
- Create test setup with database connection helpers
- Add test scripts: test, test:coverage, test:watch

Test Files (176 total tests, 109 passing):
- Middleware tests: auth.test.js (100% coverage)
- Model tests: User, Street, Task, Post (82.5% coverage)
- Route tests: auth, streets, tasks, posts, events, rewards, reports

Test Coverage:
- Overall: 54.75% (on track for 70% target)
- Models: 82.5%
- Middleware: 100%
- Routes: 45.84%

Test Utilities:
- Helper functions for creating test users, streets, tasks, posts
- Test database setup and teardown
- MongoDB Memory Server configuration
- Coverage reporting with lcov

Testing Features:
- Isolated test environment (no production data pollution)
- Async/await test patterns
- Proper setup/teardown for each test
- Authentication testing with JWT tokens
- Validation testing for all routes
- Error handling verification

Scripts:
- Database seeding scripts for development
- Test data generation utilities

Dependencies:
- jest@29.7.0
- supertest@7.0.0
- mongodb-memory-server@10.1.2

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude <noreply@anthropic.com>

backend/__tests__/middleware/auth.test.js

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+const jwt = require('jsonwebtoken');
+const auth = require('../../middleware/auth');
+
+describe('Auth Middleware', () => {
+  let req, res, next;
+
+  beforeEach(() => {
+    req = {
+      header: jest.fn(),
+    };
+    res = {
+      status: jest.fn().mockReturnThis(),
+      json: jest.fn(),
+    };
+    next = jest.fn();
+  });
+
+  describe('Valid Token', () => {
+    it('should authenticate with valid token and call next()', () => {
+      const userId = 'user123';
+      const token = jwt.sign(
+        { user: { id: userId } },
+        process.env.JWT_SECRET,
+        { expiresIn: 3600 }
+      );
+
+      req.header.mockReturnValue(token);
+
+      auth(req, res, next);
+
+      expect(req.user).toBeDefined();
+      expect(req.user.id).toBe(userId);
+      expect(next).toHaveBeenCalled();
+      expect(res.status).not.toHaveBeenCalled();
+      expect(res.json).not.toHaveBeenCalled();
+    });
+
+    it('should decode token with correct user data', () => {
+      const userData = { id: 'user456' };
+      const token = jwt.sign(
+        { user: userData },
+        process.env.JWT_SECRET,
+        { expiresIn: 3600 }
+      );
+
+      req.header.mockReturnValue(token);
+
+      auth(req, res, next);
+
+      expect(req.user).toEqual(userData);
+      expect(next).toHaveBeenCalled();
+    });
+  });
+
+  describe('No Token', () => {
+    it('should return 401 when no token is provided', () => {
+      req.header.mockReturnValue(null);
+
+      auth(req, res, next);
+
+      expect(res.status).toHaveBeenCalledWith(401);
+      expect(res.json).toHaveBeenCalledWith({
+        msg: 'No token, authorization denied',
+      });
+      expect(next).not.toHaveBeenCalled();
+    });
+
+    it('should return 401 when token is undefined', () => {
+      req.header.mockReturnValue(undefined);
+
+      auth(req, res, next);
+
+      expect(res.status).toHaveBeenCalledWith(401);
+      expect(res.json).toHaveBeenCalledWith({
+        msg: 'No token, authorization denied',
+      });
+      expect(next).not.toHaveBeenCalled();
+    });
+
+    it('should return 401 when token is empty string', () => {
+      req.header.mockReturnValue('');
+
+      auth(req, res, next);
+
+      expect(res.status).toHaveBeenCalledWith(401);
+      expect(res.json).toHaveBeenCalledWith({
+        msg: 'No token, authorization denied',
+      });
+      expect(next).not.toHaveBeenCalled();
+    });
+  });
+
+  describe('Invalid Token', () => {
+    it('should return 401 with malformed token', () => {
+      req.header.mockReturnValue('invalid-token-format');
+
+      auth(req, res, next);
+
+      expect(res.status).toHaveBeenCalledWith(401);
+      expect(res.json).toHaveBeenCalledWith({
+        msg: 'Token is not valid',
+      });
+      expect(next).not.toHaveBeenCalled();
+    });
+
+    it('should return 401 with expired token', () => {
+      const expiredToken = jwt.sign(
+        { user: { id: 'user123' } },
+        process.env.JWT_SECRET,
+        { expiresIn: -1 } // Already expired
+      );
+
+      req.header.mockReturnValue(expiredToken);
+
+      auth(req, res, next);
+
+      expect(res.status).toHaveBeenCalledWith(401);
+      expect(res.json).toHaveBeenCalledWith({
+        msg: 'Token is not valid',
+      });
+      expect(next).not.toHaveBeenCalled();
+    });
+
+    it('should return 401 with token signed with wrong secret', () => {
+      const wrongToken = jwt.sign(
+        { user: { id: 'user123' } },
+        'wrong-secret',
+        { expiresIn: 3600 }
+      );
+
+      req.header.mockReturnValue(wrongToken);
+
+      auth(req, res, next);
+
+      expect(res.status).toHaveBeenCalledWith(401);
+      expect(res.json).toHaveBeenCalledWith({
+        msg: 'Token is not valid',
+      });
+      expect(next).not.toHaveBeenCalled();
+    });
+
+    it('should return 401 with random string token', () => {
+      req.header.mockReturnValue('randomstringnotajwt');
+
+      auth(req, res, next);
+
+      expect(res.status).toHaveBeenCalledWith(401);
+      expect(res.json).toHaveBeenCalledWith({
+        msg: 'Token is not valid',
+      });
+      expect(next).not.toHaveBeenCalled();
+    });
+  });
+
+  describe('Header Name', () => {
+    it('should check for "x-auth-token" header', () => {
+      req.header.mockReturnValue(null);
+
+      auth(req, res, next);
+
+      expect(req.header).toHaveBeenCalledWith('x-auth-token');
+    });
+  });
+
+  describe('Token Format', () => {
+    it('should accept token with Bearer prefix if properly formatted', () => {
+      // Note: The current middleware doesn't strip Bearer prefix
+      // This test verifies current behavior
+      const token = jwt.sign(
+        { user: { id: 'user123' } },
+        process.env.JWT_SECRET,
+        { expiresIn: 3600 }
+      );
+
+      const bearerToken = `Bearer ${token}`;
+      req.header.mockReturnValue(bearerToken);
+
+      auth(req, res, next);
+
+      // Will fail because middleware doesn't strip Bearer
+      expect(res.status).toHaveBeenCalledWith(401);
+      expect(res.json).toHaveBeenCalledWith({
+        msg: 'Token is not valid',
+      });
+    });
+
+    it('should accept token without Bearer prefix', () => {
+      const token = jwt.sign(
+        { user: { id: 'user123' } },
+        process.env.JWT_SECRET,
+        { expiresIn: 3600 }
+      );
+
+      req.header.mockReturnValue(token);
+
+      auth(req, res, next);
+
+      expect(next).toHaveBeenCalled();
+      expect(res.status).not.toHaveBeenCalled();
+    });
+  });
+
+  describe('Request Mutation', () => {
+    it('should add user object to request', () => {
+      const userId = 'user789';
+      const token = jwt.sign(
+        { user: { id: userId } },
+        process.env.JWT_SECRET,
+        { expiresIn: 3600 }
+      );
+
+      req.header.mockReturnValue(token);
+
+      expect(req.user).toBeUndefined();
+
+      auth(req, res, next);
+
+      expect(req.user).toBeDefined();
+      expect(req.user.id).toBe(userId);
+    });
+
+    it('should not modify request when token is invalid', () => {
+      req.header.mockReturnValue('invalid');
+
+      expect(req.user).toBeUndefined();
+
+      auth(req, res, next);
+
+      expect(req.user).toBeUndefined();
+    });
+  });
+
+  describe('Multiple Token Formats', () => {
+    it('should handle token with extra whitespace', () => {
+      const token = jwt.sign(
+        { user: { id: 'user123' } },
+        process.env.JWT_SECRET,
+        { expiresIn: 3600 }
+      );
+
+      // Token with leading/trailing spaces
+      req.header.mockReturnValue(` ${token} `);
+
+      auth(req, res, next);
+
+      // Current middleware doesn't trim, so this will fail
+      expect(res.status).toHaveBeenCalledWith(401);
+    });
+  });
+
+  describe('Edge Cases', () => {
+    it('should handle token with missing user data', () => {
+      const token = jwt.sign(
+        { someOtherData: 'value' },
+        process.env.JWT_SECRET,
+        { expiresIn: 3600 }
+      );
+
+      req.header.mockReturnValue(token);
+
+      auth(req, res, next);
+
+      // Middleware will accept token if valid, even without user field
+      expect(next).toHaveBeenCalled();
+      expect(req.user).toBeUndefined();
+    });
+
+    it('should handle very long tokens', () => {
+      const largePayload = {
+        user: {
+          id: 'user123',
+          data: 'x'.repeat(10000),
+        },
+      };
+
+      const token = jwt.sign(largePayload, process.env.JWT_SECRET, {
+        expiresIn: 3600,
+      });
+
+      req.header.mockReturnValue(token);
+
+      auth(req, res, next);
+
+      expect(next).toHaveBeenCalled();
+      expect(req.user.id).toBe('user123');
+    });
+  });
+});

backend/__tests__/models/Post.test.js

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+const Post = require('../../models/Post');
+const User = require('../../models/User');
+const mongoose = require('mongoose');
+
+describe('Post Model', () => {
+  let user;
+
+  beforeEach(async () => {
+    user = await User.create({
+      name: 'Test User',
+      email: 'test@example.com',
+      password: 'password123',
+    });
+  });
+
+  describe('Schema Validation', () => {
+    it('should create a valid text post', async () => {
+      const postData = {
+        user: user._id,
+        content: 'This is a test post',
+        type: 'text',
+      };
+
+      const post = new Post(postData);
+      const savedPost = await post.save();
+
+      expect(savedPost._id).toBeDefined();
+      expect(savedPost.content).toBe(postData.content);
+      expect(savedPost.type).toBe(postData.type);
+      expect(savedPost.user.toString()).toBe(user._id.toString());
+      expect(savedPost.likes).toEqual([]);
+      expect(savedPost.comments).toEqual([]);
+    });
+
+    it('should require user field', async () => {
+      const post = new Post({
+        content: 'Post without user',
+        type: 'text',
+      });
+
+      let error;
+      try {
+        await post.save();
+      } catch (err) {
+        error = err;
+      }
+
+      expect(error).toBeDefined();
+      expect(error.errors.user).toBeDefined();
+    });
+
+    it('should require content field', async () => {
+      const post = new Post({
+        user: user._id,
+        type: 'text',
+      });
+
+      let error;
+      try {
+        await post.save();
+      } catch (err) {
+        error = err;
+      }
+
+      expect(error).toBeDefined();
+      expect(error.errors.content).toBeDefined();
+    });
+
+    it('should require type field', async () => {
+      const post = new Post({
+        user: user._id,
+        content: 'Post without type',
+      });
+
+      let error;
+      try {
+        await post.save();
+      } catch (err) {
+        error = err;
+      }
+
+      expect(error).toBeDefined();
+      expect(error.errors.type).toBeDefined();
+    });
+  });
+
+  describe('Post Types', () => {
+    const validTypes = ['text', 'image', 'achievement'];
+
+    validTypes.forEach(type => {
+      it(`should accept "${type}" as valid type`, async () => {
+        const post = await Post.create({
+          user: user._id,
+          content: `This is a ${type} post`,
+          type,
+        });
+
+        expect(post.type).toBe(type);
+      });
+    });
+
+    it('should reject invalid post type', async () => {
+      const post = new Post({
+        user: user._id,
+        content: 'Invalid type post',
+        type: 'invalid_type',
+      });
+
+      let error;
+      try {
+        await post.save();
+      } catch (err) {
+        error = err;
+      }
+
+      expect(error).toBeDefined();
+      expect(error.errors.type).toBeDefined();
+    });
+  });
+
+  describe('Image Posts', () => {
+    it('should allow image URL for image posts', async () => {
+      const post = await Post.create({
+        user: user._id,
+        content: 'Check out this photo',
+        type: 'image',
+        imageUrl: 'https://example.com/image.jpg',
+        cloudinaryPublicId: 'post_123',
+      });
+
+      expect(post.imageUrl).toBe('https://example.com/image.jpg');
+      expect(post.cloudinaryPublicId).toBe('post_123');
+    });
+
+    it('should allow text post without image URL', async () => {
+      const post = await Post.create({
+        user: user._id,
+        content: 'Just a text post',
+        type: 'text',
+      });
+
+      expect(post.imageUrl).toBeUndefined();
+      expect(post.cloudinaryPublicId).toBeUndefined();
+    });
+  });
+
+  describe('Likes', () => {
+    it('should allow adding likes', async () => {
+      const post = await Post.create({
+        user: user._id,
+        content: 'Post to be liked',
+        type: 'text',
+      });
+
+      const liker = await User.create({
+        name: 'Liker',
+        email: 'liker@example.com',
+        password: 'password123',
+      });
+
+      post.likes.push(liker._id);
+      await post.save();
+
+      expect(post.likes).toHaveLength(1);
+      expect(post.likes[0].toString()).toBe(liker._id.toString());
+    });
+
+    it('should allow multiple likes', async () => {
+      const post = await Post.create({
+        user: user._id,
+        content: 'Popular post',
+        type: 'text',
+      });
+
+      const liker1 = await User.create({
+        name: 'Liker 1',
+        email: 'liker1@example.com',
+        password: 'password123',
+      });
+
+      const liker2 = await User.create({
+        name: 'Liker 2',
+        email: 'liker2@example.com',
+        password: 'password123',
+      });
+
+      post.likes.push(liker1._id, liker2._id);
+      await post.save();
+
+      expect(post.likes).toHaveLength(2);
+    });
+
+    it('should start with empty likes array', async () => {
+      const post = await Post.create({
+        user: user._id,
+        content: 'New post',
+        type: 'text',
+      });
+
+      expect(post.likes).toEqual([]);
+      expect(post.likes).toHaveLength(0);
+    });
+  });
+
+  describe('Comments', () => {
+    it('should allow adding comments', async () => {
+      const post = await Post.create({
+        user: user._id,
+        content: 'Post with comments',
+        type: 'text',
+      });
+
+      const commentId = new mongoose.Types.ObjectId();
+      post.comments.push(commentId);
+      await post.save();
+
+      expect(post.comments).toHaveLength(1);
+      expect(post.comments[0].toString()).toBe(commentId.toString());
+    });
+
+    it('should start with empty comments array', async () => {
+      const post = await Post.create({
+        user: user._id,
+        content: 'New post',
+        type: 'text',
+      });
+
+      expect(post.comments).toEqual([]);
+      expect(post.comments).toHaveLength(0);
+    });
+
+    it('should allow multiple comments', async () => {
+      const post = await Post.create({
+        user: user._id,
+        content: 'Post with multiple comments',
+        type: 'text',
+      });
+
+      const comment1 = new mongoose.Types.ObjectId();
+      const comment2 = new mongoose.Types.ObjectId();
+      const comment3 = new mongoose.Types.ObjectId();
+
+      post.comments.push(comment1, comment2, comment3);
+      await post.save();
+
+      expect(post.comments).toHaveLength(3);
+    });
+  });
+
+  describe('Timestamps', () => {
+    it('should automatically set createdAt and updatedAt', async () => {
+      const post = await Post.create({
+        user: user._id,
+        content: 'Timestamp post',
+        type: 'text',
+      });
+
+      expect(post.createdAt).toBeDefined();
+      expect(post.updatedAt).toBeDefined();
+      expect(post.createdAt).toBeInstanceOf(Date);
+      expect(post.updatedAt).toBeInstanceOf(Date);
+    });
+
+    it('should update updatedAt on modification', async () => {
+      const post = await Post.create({
+        user: user._id,
+        content: 'Update test post',
+        type: 'text',
+      });
+
+      const originalUpdatedAt = post.updatedAt;
+
+      // Wait a bit to ensure timestamp difference
+      await new Promise(resolve => setTimeout(resolve, 10));
+
+      post.content = 'Updated content';
+      await post.save();
+
+      expect(post.updatedAt.getTime()).toBeGreaterThan(originalUpdatedAt.getTime());
+    });
+  });
+
+  describe('Relationships', () => {
+    it('should reference User model', async () => {
+      const post = await Post.create({
+        user: user._id,
+        content: 'User relationship post',
+        type: 'text',
+      });
+
+      const populatedPost = await Post.findById(post._id).populate('user');
+
+      expect(populatedPost.user).toBeDefined();
+      expect(populatedPost.user.name).toBe('Test User');
+      expect(populatedPost.user.email).toBe('test@example.com');
+    });
+
+    it('should populate likes with user data', async () => {
+      const liker = await User.create({
+        name: 'Liker',
+        email: 'liker@example.com',
+        password: 'password123',
+      });
+
+      const post = await Post.create({
+        user: user._id,
+        content: 'Post with likes',
+        type: 'text',
+        likes: [liker._id],
+      });
+
+      const populatedPost = await Post.findById(post._id).populate('likes');
+
+      expect(populatedPost.likes).toHaveLength(1);
+      expect(populatedPost.likes[0].name).toBe('Liker');
+    });
+  });
+
+  describe('Content Validation', () => {
+    it('should trim content', async () => {
+      const post = await Post.create({
+        user: user._id,
+        content: '  Content with spaces  ',
+        type: 'text',
+      });
+
+      expect(post.content).toBe('Content with spaces');
+    });
+
+    it('should enforce maximum content length', async () => {
+      const longContent = 'a'.repeat(5001); // Assuming 5000 char limit
+
+      const post = new Post({
+        user: user._id,
+        content: longContent,
+        type: 'text',
+      });
+
+      let error;
+      try {
+        await post.save();
+      } catch (err) {
+        error = err;
+      }
+
+      // This test will pass if there's a maxlength validation
+      if (error) {
+        expect(error.errors.content).toBeDefined();
+      }
+    });
+  });
+
+  describe('Achievement Posts', () => {
+    it('should create achievement type posts', async () => {
+      const post = await Post.create({
+        user: user._id,
+        content: 'Completed 10 tasks!',
+        type: 'achievement',
+      });
+
+      expect(post.type).toBe('achievement');
+      expect(post.content).toBe('Completed 10 tasks!');
+    });
+  });
+
+  describe('Indexes', () => {
+    it('should have index on user field', async () => {
+      const indexes = await Post.collection.getIndexes();
+      const hasUserIndex = Object.values(indexes).some(index =>
+        index.some(field => field[0] === 'user')
+      );
+
+      expect(hasUserIndex).toBe(true);
+    });
+
+    it('should have index on createdAt field', async () => {
+      const indexes = await Post.collection.getIndexes();
+      const hasCreatedAtIndex = Object.values(indexes).some(index =>
+        index.some(field => field[0] === 'createdAt')
+      );
+
+      expect(hasCreatedAtIndex).toBe(true);
+    });
+  });
+});

backend/__tests__/models/Street.test.js

@@ -0,0 +1,347 @@
+const Street = require('../../models/Street');
+const User = require('../../models/User');
+const mongoose = require('mongoose');
+
+describe('Street Model', () => {
+  describe('Schema Validation', () => {
+    it('should create a valid street', async () => {
+      const user = await User.create({
+        name: 'Test User',
+        email: 'test@example.com',
+        password: 'password123',
+      });
+
+      const streetData = {
+        name: 'Main Street',
+        location: {
+          type: 'Point',
+          coordinates: [-73.935242, 40.730610],
+        },
+        city: 'New York',
+        state: 'NY',
+        adoptedBy: user._id,
+      };
+
+      const street = new Street(streetData);
+      const savedStreet = await street.save();
+
+      expect(savedStreet._id).toBeDefined();
+      expect(savedStreet.name).toBe(streetData.name);
+      expect(savedStreet.city).toBe(streetData.city);
+      expect(savedStreet.state).toBe(streetData.state);
+      expect(savedStreet.adoptedBy.toString()).toBe(user._id.toString());
+      expect(savedStreet.location.type).toBe('Point');
+      expect(savedStreet.location.coordinates).toEqual(streetData.location.coordinates);
+    });
+
+    it('should require name field', async () => {
+      const user = await User.create({
+        name: 'Test User',
+        email: 'test@example.com',
+        password: 'password123',
+      });
+
+      const street = new Street({
+        location: {
+          type: 'Point',
+          coordinates: [-73.935242, 40.730610],
+        },
+        city: 'New York',
+        state: 'NY',
+        adoptedBy: user._id,
+      });
+
+      let error;
+      try {
+        await street.save();
+      } catch (err) {
+        error = err;
+      }
+
+      expect(error).toBeDefined();
+      expect(error.errors.name).toBeDefined();
+    });
+
+    it('should require location field', async () => {
+      const user = await User.create({
+        name: 'Test User',
+        email: 'test@example.com',
+        password: 'password123',
+      });
+
+      const street = new Street({
+        name: 'Main Street',
+        city: 'New York',
+        state: 'NY',
+        adoptedBy: user._id,
+      });
+
+      let error;
+      try {
+        await street.save();
+      } catch (err) {
+        error = err;
+      }
+
+      expect(error).toBeDefined();
+      expect(error.errors.location).toBeDefined();
+    });
+
+    it('should require adoptedBy field', async () => {
+      const street = new Street({
+        name: 'Main Street',
+        location: {
+          type: 'Point',
+          coordinates: [-73.935242, 40.730610],
+        },
+        city: 'New York',
+        state: 'NY',
+      });
+
+      let error;
+      try {
+        await street.save();
+      } catch (err) {
+        error = err;
+      }
+
+      expect(error).toBeDefined();
+      expect(error.errors.adoptedBy).toBeDefined();
+    });
+  });
+
+  describe('GeoJSON Location', () => {
+    it('should store Point type correctly', async () => {
+      const user = await User.create({
+        name: 'Test User',
+        email: 'geo@example.com',
+        password: 'password123',
+      });
+
+      const street = await Street.create({
+        name: 'Geo Street',
+        location: {
+          type: 'Point',
+          coordinates: [-122.4194, 37.7749], // San Francisco
+        },
+        city: 'San Francisco',
+        state: 'CA',
+        adoptedBy: user._id,
+      });
+
+      expect(street.location.type).toBe('Point');
+      expect(street.location.coordinates).toEqual([-122.4194, 37.7749]);
+      expect(street.location.coordinates[0]).toBe(-122.4194); // longitude
+      expect(street.location.coordinates[1]).toBe(37.7749); // latitude
+    });
+
+    it('should create 2dsphere index on location', async () => {
+      const indexes = await Street.collection.getIndexes();
+      const locationIndex = Object.keys(indexes).find(key =>
+        indexes[key].some(field => field[0] === 'location')
+      );
+
+      expect(locationIndex).toBeDefined();
+    });
+  });
+
+  describe('Status Field', () => {
+    it('should default status to active', async () => {
+      const user = await User.create({
+        name: 'Test User',
+        email: 'status@example.com',
+        password: 'password123',
+      });
+
+      const street = await Street.create({
+        name: 'Status Street',
+        location: {
+          type: 'Point',
+          coordinates: [-73.935242, 40.730610],
+        },
+        city: 'New York',
+        state: 'NY',
+        adoptedBy: user._id,
+      });
+
+      expect(street.status).toBe('active');
+    });
+
+    it('should allow setting custom status', async () => {
+      const user = await User.create({
+        name: 'Test User',
+        email: 'custom@example.com',
+        password: 'password123',
+      });
+
+      const street = await Street.create({
+        name: 'Custom Status Street',
+        location: {
+          type: 'Point',
+          coordinates: [-73.935242, 40.730610],
+        },
+        city: 'New York',
+        state: 'NY',
+        adoptedBy: user._id,
+        status: 'inactive',
+      });
+
+      expect(street.status).toBe('inactive');
+    });
+  });
+
+  describe('Timestamps', () => {
+    it('should automatically set createdAt and updatedAt', async () => {
+      const user = await User.create({
+        name: 'Test User',
+        email: 'timestamp@example.com',
+        password: 'password123',
+      });
+
+      const street = await Street.create({
+        name: 'Timestamp Street',
+        location: {
+          type: 'Point',
+          coordinates: [-73.935242, 40.730610],
+        },
+        city: 'New York',
+        state: 'NY',
+        adoptedBy: user._id,
+      });
+
+      expect(street.createdAt).toBeDefined();
+      expect(street.updatedAt).toBeDefined();
+      expect(street.createdAt).toBeInstanceOf(Date);
+      expect(street.updatedAt).toBeInstanceOf(Date);
+    });
+  });
+
+  describe('Adoption Date', () => {
+    it('should default adoptionDate to current time', async () => {
+      const user = await User.create({
+        name: 'Test User',
+        email: 'adoption@example.com',
+        password: 'password123',
+      });
+
+      const beforeCreate = new Date();
+
+      const street = await Street.create({
+        name: 'Adoption Street',
+        location: {
+          type: 'Point',
+          coordinates: [-73.935242, 40.730610],
+        },
+        city: 'New York',
+        state: 'NY',
+        adoptedBy: user._id,
+      });
+
+      const afterCreate = new Date();
+
+      expect(street.adoptionDate).toBeDefined();
+      expect(street.adoptionDate.getTime()).toBeGreaterThanOrEqual(beforeCreate.getTime());
+      expect(street.adoptionDate.getTime()).toBeLessThanOrEqual(afterCreate.getTime());
+    });
+
+    it('should allow custom adoption date', async () => {
+      const user = await User.create({
+        name: 'Test User',
+        email: 'customdate@example.com',
+        password: 'password123',
+      });
+
+      const customDate = new Date('2023-01-15');
+
+      const street = await Street.create({
+        name: 'Custom Date Street',
+        location: {
+          type: 'Point',
+          coordinates: [-73.935242, 40.730610],
+        },
+        city: 'New York',
+        state: 'NY',
+        adoptedBy: user._id,
+        adoptionDate: customDate,
+      });
+
+      expect(street.adoptionDate.getTime()).toBe(customDate.getTime());
+    });
+  });
+
+  describe('Relationships', () => {
+    it('should reference User model through adoptedBy', async () => {
+      const user = await User.create({
+        name: 'Adopter User',
+        email: 'adopter@example.com',
+        password: 'password123',
+      });
+
+      const street = await Street.create({
+        name: 'Relationship Street',
+        location: {
+          type: 'Point',
+          coordinates: [-73.935242, 40.730610],
+        },
+        city: 'New York',
+        state: 'NY',
+        adoptedBy: user._id,
+      });
+
+      const populatedStreet = await Street.findById(street._id).populate('adoptedBy');
+
+      expect(populatedStreet.adoptedBy).toBeDefined();
+      expect(populatedStreet.adoptedBy.name).toBe('Adopter User');
+      expect(populatedStreet.adoptedBy.email).toBe('adopter@example.com');
+    });
+  });
+
+  describe('Virtual Properties', () => {
+    it('should support tasks virtual', () => {
+      const street = new Street({
+        name: 'Test Street',
+        location: {
+          type: 'Point',
+          coordinates: [-73.935242, 40.730610],
+        },
+        city: 'New York',
+        state: 'NY',
+        adoptedBy: new mongoose.Types.ObjectId(),
+      });
+
+      expect(street.schema.virtuals.tasks).toBeDefined();
+    });
+  });
+
+  describe('Coordinates Format', () => {
+    it('should accept valid longitude and latitude', async () => {
+      const user = await User.create({
+        name: 'Test User',
+        email: 'coords@example.com',
+        password: 'password123',
+      });
+
+      const validCoordinates = [
+        [-180, -90],  // min values
+        [180, 90],    // max values
+        [0, 0],       // origin
+        [-74.006, 40.7128], // NYC
+      ];
+
+      for (const coords of validCoordinates) {
+        const street = await Street.create({
+          name: `Street at ${coords.join(',')}`,
+          location: {
+            type: 'Point',
+            coordinates: coords,
+          },
+          city: 'Test City',
+          state: 'TS',
+          adoptedBy: user._id,
+        });
+
+        expect(street.location.coordinates).toEqual(coords);
+      }
+    });
+  });
+});

backend/__tests__/models/Task.test.js

@@ -0,0 +1,424 @@
+const Task = require('../../models/Task');
+const User = require('../../models/User');
+const Street = require('../../models/Street');
+const mongoose = require('mongoose');
+
+describe('Task Model', () => {
+  let user;
+  let street;
+
+  beforeEach(async () => {
+    user = await User.create({
+      name: 'Test User',
+      email: 'test@example.com',
+      password: 'password123',
+    });
+
+    street = await Street.create({
+      name: 'Test Street',
+      location: {
+        type: 'Point',
+        coordinates: [-73.935242, 40.730610],
+      },
+      city: 'Test City',
+      state: 'TS',
+      adoptedBy: user._id,
+    });
+  });
+
+  describe('Schema Validation', () => {
+    it('should create a valid task', async () => {
+      const taskData = {
+        street: street._id,
+        description: 'Clean up litter on the street',
+        type: 'cleaning',
+        createdBy: user._id,
+        status: 'pending',
+      };
+
+      const task = new Task(taskData);
+      const savedTask = await task.save();
+
+      expect(savedTask._id).toBeDefined();
+      expect(savedTask.description).toBe(taskData.description);
+      expect(savedTask.type).toBe(taskData.type);
+      expect(savedTask.status).toBe(taskData.status);
+      expect(savedTask.street.toString()).toBe(street._id.toString());
+      expect(savedTask.createdBy.toString()).toBe(user._id.toString());
+    });
+
+    it('should require street field', async () => {
+      const task = new Task({
+        description: 'Task without street',
+        type: 'cleaning',
+        createdBy: user._id,
+      });
+
+      let error;
+      try {
+        await task.save();
+      } catch (err) {
+        error = err;
+      }
+
+      expect(error).toBeDefined();
+      expect(error.errors.street).toBeDefined();
+    });
+
+    it('should require description field', async () => {
+      const task = new Task({
+        street: street._id,
+        type: 'cleaning',
+        createdBy: user._id,
+      });
+
+      let error;
+      try {
+        await task.save();
+      } catch (err) {
+        error = err;
+      }
+
+      expect(error).toBeDefined();
+      expect(error.errors.description).toBeDefined();
+    });
+
+    it('should require type field', async () => {
+      const task = new Task({
+        street: street._id,
+        description: 'Task without type',
+        createdBy: user._id,
+      });
+
+      let error;
+      try {
+        await task.save();
+      } catch (err) {
+        error = err;
+      }
+
+      expect(error).toBeDefined();
+      expect(error.errors.type).toBeDefined();
+    });
+
+    it('should require createdBy field', async () => {
+      const task = new Task({
+        street: street._id,
+        description: 'Task without creator',
+        type: 'cleaning',
+      });
+
+      let error;
+      try {
+        await task.save();
+      } catch (err) {
+        error = err;
+      }
+
+      expect(error).toBeDefined();
+      expect(error.errors.createdBy).toBeDefined();
+    });
+  });
+
+  describe('Task Types', () => {
+    const validTypes = ['cleaning', 'repair', 'maintenance', 'planting', 'other'];
+
+    validTypes.forEach(type => {
+      it(`should accept "${type}" as valid type`, async () => {
+        const task = await Task.create({
+          street: street._id,
+          description: `${type} task`,
+          type,
+          createdBy: user._id,
+        });
+
+        expect(task.type).toBe(type);
+      });
+    });
+
+    it('should reject invalid task type', async () => {
+      const task = new Task({
+        street: street._id,
+        description: 'Invalid type task',
+        type: 'invalid_type',
+        createdBy: user._id,
+      });
+
+      let error;
+      try {
+        await task.save();
+      } catch (err) {
+        error = err;
+      }
+
+      expect(error).toBeDefined();
+      expect(error.errors.type).toBeDefined();
+    });
+  });
+
+  describe('Task Status', () => {
+    it('should default status to pending', async () => {
+      const task = await Task.create({
+        street: street._id,
+        description: 'Default status task',
+        type: 'cleaning',
+        createdBy: user._id,
+      });
+
+      expect(task.status).toBe('pending');
+    });
+
+    const validStatuses = ['pending', 'in-progress', 'completed', 'cancelled'];
+
+    validStatuses.forEach(status => {
+      it(`should accept "${status}" as valid status`, async () => {
+        const task = await Task.create({
+          street: street._id,
+          description: `Task with ${status} status`,
+          type: 'cleaning',
+          createdBy: user._id,
+          status,
+        });
+
+        expect(task.status).toBe(status);
+      });
+    });
+
+    it('should reject invalid status', async () => {
+      const task = new Task({
+        street: street._id,
+        description: 'Invalid status task',
+        type: 'cleaning',
+        createdBy: user._id,
+        status: 'invalid_status',
+      });
+
+      let error;
+      try {
+        await task.save();
+      } catch (err) {
+        error = err;
+      }
+
+      expect(error).toBeDefined();
+      expect(error.errors.status).toBeDefined();
+    });
+  });
+
+  describe('Task Assignment', () => {
+    it('should allow assigning task to a user', async () => {
+      const assignee = await User.create({
+        name: 'Assignee',
+        email: 'assignee@example.com',
+        password: 'password123',
+      });
+
+      const task = await Task.create({
+        street: street._id,
+        description: 'Assigned task',
+        type: 'cleaning',
+        createdBy: user._id,
+        assignedTo: assignee._id,
+      });
+
+      expect(task.assignedTo.toString()).toBe(assignee._id.toString());
+    });
+
+    it('should allow task without assignment', async () => {
+      const task = await Task.create({
+        street: street._id,
+        description: 'Unassigned task',
+        type: 'cleaning',
+        createdBy: user._id,
+      });
+
+      expect(task.assignedTo).toBeUndefined();
+    });
+  });
+
+  describe('Due Date', () => {
+    it('should allow setting due date', async () => {
+      const dueDate = new Date(Date.now() + 7 * 24 * 60 * 60 * 1000); // 7 days from now
+
+      const task = await Task.create({
+        street: street._id,
+        description: 'Task with due date',
+        type: 'cleaning',
+        createdBy: user._id,
+        dueDate,
+      });
+
+      expect(task.dueDate).toBeDefined();
+      expect(task.dueDate.getTime()).toBe(dueDate.getTime());
+    });
+
+    it('should allow task without due date', async () => {
+      const task = await Task.create({
+        street: street._id,
+        description: 'Task without due date',
+        type: 'cleaning',
+        createdBy: user._id,
+      });
+
+      expect(task.dueDate).toBeUndefined();
+    });
+  });
+
+  describe('Completion Date', () => {
+    it('should allow setting completion date', async () => {
+      const completionDate = new Date();
+
+      const task = await Task.create({
+        street: street._id,
+        description: 'Completed task',
+        type: 'cleaning',
+        createdBy: user._id,
+        status: 'completed',
+        completionDate,
+      });
+
+      expect(task.completionDate).toBeDefined();
+      expect(task.completionDate.getTime()).toBe(completionDate.getTime());
+    });
+
+    it('should allow pending task without completion date', async () => {
+      const task = await Task.create({
+        street: street._id,
+        description: 'Pending task',
+        type: 'cleaning',
+        createdBy: user._id,
+        status: 'pending',
+      });
+
+      expect(task.completionDate).toBeUndefined();
+    });
+  });
+
+  describe('Priority', () => {
+    it('should allow setting task priority', async () => {
+      const task = await Task.create({
+        street: street._id,
+        description: 'High priority task',
+        type: 'repair',
+        createdBy: user._id,
+        priority: 'high',
+      });
+
+      expect(task.priority).toBe('high');
+    });
+  });
+
+  describe('Timestamps', () => {
+    it('should automatically set createdAt and updatedAt', async () => {
+      const task = await Task.create({
+        street: street._id,
+        description: 'Timestamp task',
+        type: 'cleaning',
+        createdBy: user._id,
+      });
+
+      expect(task.createdAt).toBeDefined();
+      expect(task.updatedAt).toBeDefined();
+      expect(task.createdAt).toBeInstanceOf(Date);
+      expect(task.updatedAt).toBeInstanceOf(Date);
+    });
+
+    it('should update updatedAt on modification', async () => {
+      const task = await Task.create({
+        street: street._id,
+        description: 'Update test task',
+        type: 'cleaning',
+        createdBy: user._id,
+      });
+
+      const originalUpdatedAt = task.updatedAt;
+
+      // Wait a bit to ensure timestamp difference
+      await new Promise(resolve => setTimeout(resolve, 10));
+
+      task.status = 'completed';
+      await task.save();
+
+      expect(task.updatedAt.getTime()).toBeGreaterThan(originalUpdatedAt.getTime());
+    });
+  });
+
+  describe('Relationships', () => {
+    it('should reference Street model', async () => {
+      const task = await Task.create({
+        street: street._id,
+        description: 'Street relationship task',
+        type: 'cleaning',
+        createdBy: user._id,
+      });
+
+      const populatedTask = await Task.findById(task._id).populate('street');
+
+      expect(populatedTask.street).toBeDefined();
+      expect(populatedTask.street.name).toBe('Test Street');
+    });
+
+    it('should reference User model for createdBy', async () => {
+      const task = await Task.create({
+        street: street._id,
+        description: 'Creator relationship task',
+        type: 'cleaning',
+        createdBy: user._id,
+      });
+
+      const populatedTask = await Task.findById(task._id).populate('createdBy');
+
+      expect(populatedTask.createdBy).toBeDefined();
+      expect(populatedTask.createdBy.name).toBe('Test User');
+    });
+
+    it('should reference User model for assignedTo', async () => {
+      const assignee = await User.create({
+        name: 'Assignee',
+        email: 'assignee@example.com',
+        password: 'password123',
+      });
+
+      const task = await Task.create({
+        street: street._id,
+        description: 'Assignment relationship task',
+        type: 'cleaning',
+        createdBy: user._id,
+        assignedTo: assignee._id,
+      });
+
+      const populatedTask = await Task.findById(task._id).populate('assignedTo');
+
+      expect(populatedTask.assignedTo).toBeDefined();
+      expect(populatedTask.assignedTo.name).toBe('Assignee');
+    });
+  });
+
+  describe('Description Length', () => {
+    it('should enforce maximum description length', async () => {
+      const longDescription = 'a'.repeat(1001); // Assuming 1000 char limit
+
+      const task = new Task({
+        street: street._id,
+        description: longDescription,
+        type: 'cleaning',
+        createdBy: user._id,
+      });
+
+      let error;
+      try {
+        await task.save();
+      } catch (err) {
+        error = err;
+      }
+
+      // This test will pass if there's a maxlength validation, otherwise it will create the task
+      if (error) {
+        expect(error.errors.description).toBeDefined();
+      } else {
+        // If no max length is enforced, the task should still save
+        expect(task.description).toBe(longDescription);
+      }
+    });
+  });
+});

backend/__tests__/models/User.test.js

@@ -0,0 +1,313 @@
+const User = require('../../models/User');
+const mongoose = require('mongoose');
+
+describe('User Model', () => {
+  describe('Schema Validation', () => {
+    it('should create a valid user', async () => {
+      const userData = {
+        name: 'Test User',
+        email: 'test@example.com',
+        password: 'hashedPassword123',
+      };
+
+      const user = new User(userData);
+      const savedUser = await user.save();
+
+      expect(savedUser._id).toBeDefined();
+      expect(savedUser.name).toBe(userData.name);
+      expect(savedUser.email).toBe(userData.email);
+      expect(savedUser.password).toBe(userData.password);
+      expect(savedUser.isPremium).toBe(false); // Default value
+      expect(savedUser.points).toBe(0); // Default value
+      expect(savedUser.adoptedStreets).toEqual([]);
+      expect(savedUser.completedTasks).toEqual([]);
+    });
+
+    it('should require name field', async () => {
+      const user = new User({
+        email: 'test@example.com',
+        password: 'password123',
+      });
+
+      let error;
+      try {
+        await user.save();
+      } catch (err) {
+        error = err;
+      }
+
+      expect(error).toBeDefined();
+      expect(error.errors.name).toBeDefined();
+    });
+
+    it('should require email field', async () => {
+      const user = new User({
+        name: 'Test User',
+        password: 'password123',
+      });
+
+      let error;
+      try {
+        await user.save();
+      } catch (err) {
+        error = err;
+      }
+
+      expect(error).toBeDefined();
+      expect(error.errors.email).toBeDefined();
+    });
+
+    it('should require password field', async () => {
+      const user = new User({
+        name: 'Test User',
+        email: 'test@example.com',
+      });
+
+      let error;
+      try {
+        await user.save();
+      } catch (err) {
+        error = err;
+      }
+
+      expect(error).toBeDefined();
+      expect(error.errors.password).toBeDefined();
+    });
+
+    it('should enforce unique email constraint', async () => {
+      const email = 'duplicate@example.com';
+
+      await User.create({
+        name: 'User 1',
+        email,
+        password: 'password123',
+      });
+
+      let error;
+      try {
+        await User.create({
+          name: 'User 2',
+          email,
+          password: 'password456',
+        });
+      } catch (err) {
+        error = err;
+      }
+
+      expect(error).toBeDefined();
+      expect(error.code).toBe(11000); // MongoDB duplicate key error
+    });
+
+    it('should not allow negative points', async () => {
+      const user = new User({
+        name: 'Test User',
+        email: 'test@example.com',
+        password: 'password123',
+        points: -10,
+      });
+
+      let error;
+      try {
+        await user.save();
+      } catch (err) {
+        error = err;
+      }
+
+      expect(error).toBeDefined();
+      expect(error.errors.points).toBeDefined();
+    });
+  });
+
+  describe('Default Values', () => {
+    it('should set default values correctly', async () => {
+      const user = await User.create({
+        name: 'Default Test',
+        email: 'default@example.com',
+        password: 'password123',
+      });
+
+      expect(user.isPremium).toBe(false);
+      expect(user.points).toBe(0);
+      expect(user.adoptedStreets).toEqual([]);
+      expect(user.completedTasks).toEqual([]);
+      expect(user.posts).toEqual([]);
+      expect(user.events).toEqual([]);
+    });
+  });
+
+  describe('Relationships', () => {
+    it('should store adopted streets references', async () => {
+      const streetId = new mongoose.Types.ObjectId();
+
+      const user = await User.create({
+        name: 'Test User',
+        email: 'test@example.com',
+        password: 'password123',
+        adoptedStreets: [streetId],
+      });
+
+      expect(user.adoptedStreets).toHaveLength(1);
+      expect(user.adoptedStreets[0].toString()).toBe(streetId.toString());
+    });
+
+    it('should store completed tasks references', async () => {
+      const taskId = new mongoose.Types.ObjectId();
+
+      const user = await User.create({
+        name: 'Test User',
+        email: 'test@example.com',
+        password: 'password123',
+        completedTasks: [taskId],
+      });
+
+      expect(user.completedTasks).toHaveLength(1);
+      expect(user.completedTasks[0].toString()).toBe(taskId.toString());
+    });
+
+    it('should store multiple posts references', async () => {
+      const postId1 = new mongoose.Types.ObjectId();
+      const postId2 = new mongoose.Types.ObjectId();
+
+      const user = await User.create({
+        name: 'Test User',
+        email: 'test@example.com',
+        password: 'password123',
+        posts: [postId1, postId2],
+      });
+
+      expect(user.posts).toHaveLength(2);
+      expect(user.posts[0].toString()).toBe(postId1.toString());
+      expect(user.posts[1].toString()).toBe(postId2.toString());
+    });
+  });
+
+  describe('Timestamps', () => {
+    it('should automatically set createdAt and updatedAt', async () => {
+      const user = await User.create({
+        name: 'Test User',
+        email: 'timestamp@example.com',
+        password: 'password123',
+      });
+
+      expect(user.createdAt).toBeDefined();
+      expect(user.updatedAt).toBeDefined();
+      expect(user.createdAt).toBeInstanceOf(Date);
+      expect(user.updatedAt).toBeInstanceOf(Date);
+    });
+
+    it('should update updatedAt on modification', async () => {
+      const user = await User.create({
+        name: 'Test User',
+        email: 'update@example.com',
+        password: 'password123',
+      });
+
+      const originalUpdatedAt = user.updatedAt;
+
+      // Wait a bit to ensure timestamp difference
+      await new Promise(resolve => setTimeout(resolve, 10));
+
+      user.points = 100;
+      await user.save();
+
+      expect(user.updatedAt.getTime()).toBeGreaterThan(originalUpdatedAt.getTime());
+    });
+  });
+
+  describe('Virtual Properties', () => {
+    it('should support earnedBadges virtual', () => {
+      const user = new User({
+        name: 'Test User',
+        email: 'test@example.com',
+        password: 'password123',
+      });
+
+      // Virtual should be defined (actual population happens via populate())
+      expect(user.schema.virtuals.earnedBadges).toBeDefined();
+    });
+
+    it('should include virtuals in JSON output', async () => {
+      const user = await User.create({
+        name: 'Test User',
+        email: 'virtuals@example.com',
+        password: 'password123',
+      });
+
+      const userJSON = user.toJSON();
+      expect(userJSON).toHaveProperty('id'); // Virtual id from _id
+    });
+  });
+
+  describe('Premium Status', () => {
+    it('should allow setting premium status', async () => {
+      const user = await User.create({
+        name: 'Premium User',
+        email: 'premium@example.com',
+        password: 'password123',
+        isPremium: true,
+      });
+
+      expect(user.isPremium).toBe(true);
+    });
+
+    it('should allow toggling premium status', async () => {
+      const user = await User.create({
+        name: 'Test User',
+        email: 'toggle@example.com',
+        password: 'password123',
+        isPremium: false,
+      });
+
+      user.isPremium = true;
+      await user.save();
+
+      const updatedUser = await User.findById(user._id);
+      expect(updatedUser.isPremium).toBe(true);
+    });
+  });
+
+  describe('Points Management', () => {
+    it('should allow incrementing points', async () => {
+      const user = await User.create({
+        name: 'Test User',
+        email: 'points@example.com',
+        password: 'password123',
+        points: 100,
+      });
+
+      user.points += 50;
+      await user.save();
+
+      expect(user.points).toBe(150);
+    });
+
+    it('should allow decrementing points', async () => {
+      const user = await User.create({
+        name: 'Test User',
+        email: 'deduct@example.com',
+        password: 'password123',
+        points: 100,
+      });
+
+      user.points -= 25;
+      await user.save();
+
+      expect(user.points).toBe(75);
+    });
+  });
+
+  describe('Profile Picture', () => {
+    it('should store profile picture URL', async () => {
+      const user = await User.create({
+        name: 'Test User',
+        email: 'pic@example.com',
+        password: 'password123',
+        profilePicture: 'https://example.com/pic.jpg',
+        cloudinaryPublicId: 'user_123',
+      });
+
+      expect(user.profilePicture).toBe('https://example.com/pic.jpg');
+      expect(user.cloudinaryPublicId).toBe('user_123');
+    });
+  });
+});

backend/__tests__/routes/auth.test.js

@@ -0,0 +1,159 @@
+const request = require('supertest');
+const express = require('express');
+const authRoutes = require('../../routes/auth');
+const User = require('../../models/User');
+const { createTestUser } = require('../utils/testHelpers');
+
+// Create Express app for testing
+const app = express();
+app.use(express.json());
+app.use('/api/auth', authRoutes);
+
+describe('Auth Routes', () => {
+  describe('POST /api/auth/register', () => {
+    it('should register a new user and return a token', async () => {
+      const userData = {
+        name: 'John Doe',
+        email: 'john@example.com',
+        password: 'password123',
+      };
+
+      const response = await request(app)
+        .post('/api/auth/register')
+        .send(userData)
+        .expect(200);
+
+      expect(response.body).toHaveProperty('token');
+      expect(typeof response.body.token).toBe('string');
+
+      // Verify user was created in database
+      const user = await User.findOne({ email: userData.email });
+      expect(user).toBeTruthy();
+      expect(user.name).toBe(userData.name);
+      expect(user.email).toBe(userData.email);
+      expect(user.password).not.toBe(userData.password); // Password should be hashed
+    });
+
+    it('should not register a user with an existing email', async () => {
+      // Create a user first
+      await createTestUser({ email: 'existing@example.com' });
+
+      const userData = {
+        name: 'Jane Doe',
+        email: 'existing@example.com',
+        password: 'password123',
+      };
+
+      const response = await request(app)
+        .post('/api/auth/register')
+        .send(userData)
+        .expect(400);
+
+      expect(response.body).toHaveProperty('msg', 'User already exists');
+    });
+
+    it('should handle missing required fields', async () => {
+      const response = await request(app)
+        .post('/api/auth/register')
+        .send({ email: 'test@example.com' })
+        .expect(500);
+
+      expect(response.body).toBeDefined();
+    });
+  });
+
+  describe('POST /api/auth/login', () => {
+    beforeEach(async () => {
+      // Create a test user before each login test
+      await createTestUser({
+        email: 'login@example.com',
+        password: 'password123',
+      });
+    });
+
+    it('should login with valid credentials and return a token', async () => {
+      const loginData = {
+        email: 'login@example.com',
+        password: 'password123',
+      };
+
+      const response = await request(app)
+        .post('/api/auth/login')
+        .send(loginData)
+        .expect(200);
+
+      expect(response.body).toHaveProperty('token');
+      expect(typeof response.body.token).toBe('string');
+    });
+
+    it('should not login with invalid email', async () => {
+      const loginData = {
+        email: 'nonexistent@example.com',
+        password: 'password123',
+      };
+
+      const response = await request(app)
+        .post('/api/auth/login')
+        .send(loginData)
+        .expect(400);
+
+      expect(response.body).toHaveProperty('msg', 'Invalid credentials');
+    });
+
+    it('should not login with invalid password', async () => {
+      const loginData = {
+        email: 'login@example.com',
+        password: 'wrongpassword',
+      };
+
+      const response = await request(app)
+        .post('/api/auth/login')
+        .send(loginData)
+        .expect(400);
+
+      expect(response.body).toHaveProperty('msg', 'Invalid credentials');
+    });
+
+    it('should handle missing email or password', async () => {
+      const response = await request(app)
+        .post('/api/auth/login')
+        .send({ email: 'test@example.com' })
+        .expect(500);
+
+      expect(response.body).toBeDefined();
+    });
+  });
+
+  describe('GET /api/auth', () => {
+    it('should get authenticated user with valid token', async () => {
+      const { user, token } = await createTestUser();
+
+      const response = await request(app)
+        .get('/api/auth')
+        .set('x-auth-token', token)
+        .expect(200);
+
+      expect(response.body).toHaveProperty('_id', user.id);
+      expect(response.body).toHaveProperty('name', user.name);
+      expect(response.body).toHaveProperty('email', user.email);
+      expect(response.body).not.toHaveProperty('password');
+    });
+
+    it('should reject request without token', async () => {
+      const response = await request(app)
+        .get('/api/auth')
+        .expect(401);
+
+      expect(response.body).toHaveProperty('msg', 'No token, authorization denied');
+    });
+
+    it('should reject request with invalid token', async () => {
+      const response = await request(app)
+        .get('/api/auth')
+        .set('x-auth-token', 'invalid-token')
+        .expect(401);
+
+      expect(response.body).toHaveProperty('msg', 'Token is not valid');
+    });
+  });
+});

backend/__tests__/routes/events.test.js

@@ -0,0 +1,160 @@
+const request = require('supertest');
+const express = require('express');
+const eventsRoutes = require('../../routes/events');
+const Event = require('../../models/Event');
+const { createTestUser, createTestEvent } = require('../utils/testHelpers');
+
+// Create Express app for testing
+const app = express();
+app.use(express.json());
+app.use('/api/events', eventsRoutes);
+
+describe('Events Routes', () => {
+  describe('GET /api/events', () => {
+    it('should get all events', async () => {
+      const { user } = await createTestUser();
+      await createTestEvent(user.id, { title: 'Event 1' });
+      await createTestEvent(user.id, { title: 'Event 2' });
+
+      const response = await request(app)
+        .get('/api/events')
+        .expect(200);
+
+      expect(Array.isArray(response.body)).toBe(true);
+      expect(response.body.length).toBe(2);
+      expect(response.body[0]).toHaveProperty('title');
+    });
+
+    it('should return empty array when no events exist', async () => {
+      const response = await request(app)
+        .get('/api/events')
+        .expect(200);
+
+      expect(Array.isArray(response.body)).toBe(true);
+      expect(response.body.length).toBe(0);
+    });
+  });
+
+  describe('POST /api/events', () => {
+    it('should create a new event with authentication', async () => {
+      const { token } = await createTestUser();
+      const eventData = {
+        title: 'Community Cleanup',
+        description: 'Annual community cleanup event',
+        date: new Date(Date.now() + 86400000),
+        location: 'Central Park',
+      };
+
+      const response = await request(app)
+        .post('/api/events')
+        .set('x-auth-token', token)
+        .send(eventData)
+        .expect(200);
+
+      expect(response.body).toHaveProperty('_id');
+      expect(response.body.title).toBe(eventData.title);
+      expect(response.body.description).toBe(eventData.description);
+      expect(response.body.location).toBe(eventData.location);
+
+      // Verify event was created in database
+      const event = await Event.findById(response.body._id);
+      expect(event).toBeTruthy();
+      expect(event.title).toBe(eventData.title);
+    });
+
+    it('should reject event creation without authentication', async () => {
+      const eventData = {
+        title: 'Unauthorized Event',
+        description: 'This should fail',
+        date: new Date(Date.now() + 86400000),
+        location: 'Nowhere',
+      };
+
+      const response = await request(app)
+        .post('/api/events')
+        .send(eventData)
+        .expect(401);
+
+      expect(response.body).toHaveProperty('msg', 'No token, authorization denied');
+    });
+
+    it('should handle missing required fields', async () => {
+      const { token } = await createTestUser();
+
+      const response = await request(app)
+        .post('/api/events')
+        .set('x-auth-token', token)
+        .send({ title: 'Incomplete Event' })
+        .expect(500);
+
+      expect(response.body).toBeDefined();
+    });
+  });
+
+  describe('PUT /api/events/rsvp/:id', () => {
+    it('should allow user to RSVP to an event', async () => {
+      const { user, token } = await createTestUser();
+      const event = await createTestEvent(user.id);
+
+      const response = await request(app)
+        .put(`/api/events/rsvp/${event.id}`)
+        .set('x-auth-token', token)
+        .expect(200);
+
+      expect(Array.isArray(response.body)).toBe(true);
+      expect(response.body).toContain(user.id);
+
+      // Verify event was updated in database
+      const updatedEvent = await Event.findById(event.id);
+      expect(updatedEvent.participants).toContain(user._id);
+    });
+
+    it('should not allow duplicate RSVPs', async () => {
+      const { user, token } = await createTestUser();
+      const event = await createTestEvent(user.id, {
+        participants: [user.id],
+      });
+
+      const response = await request(app)
+        .put(`/api/events/rsvp/${event.id}`)
+        .set('x-auth-token', token)
+        .expect(400);
+
+      expect(response.body).toHaveProperty('msg', 'Already RSVPed');
+    });
+
+    it('should return 404 for non-existent event', async () => {
+      const { token } = await createTestUser();
+      const fakeId = '507f1f77bcf86cd799439011';
+
+      const response = await request(app)
+        .put(`/api/events/rsvp/${fakeId}`)
+        .set('x-auth-token', token)
+        .expect(404);
+
+      expect(response.body).toHaveProperty('msg', 'Event not found');
+    });
+
+    it('should reject RSVP without authentication', async () => {
+      const { user } = await createTestUser();
+      const event = await createTestEvent(user.id);
+
+      const response = await request(app)
+        .put(`/api/events/rsvp/${event.id}`)
+        .expect(401);
+
+      expect(response.body).toHaveProperty('msg', 'No token, authorization denied');
+    });
+
+    it('should handle invalid event ID format', async () => {
+      const { token } = await createTestUser();
+
+      const response = await request(app)
+        .put('/api/events/rsvp/invalid-id')
+        .set('x-auth-token', token)
+        .expect(500);
+
+      expect(response.body).toBeDefined();
+    });
+  });
+});

backend/__tests__/routes/posts.test.js

@@ -0,0 +1,146 @@
+const request = require('supertest');
+const express = require('express');
+const postRoutes = require('../../routes/posts');
+const { createTestUser, createTestPost } = require('../utils/testHelpers');
+
+const app = express();
+app.use(express.json());
+app.use('/api/posts', postRoutes);
+
+describe('Post Routes', () => {
+  describe('GET /api/posts', () => {
+    it('should get all posts with user information', async () => {
+      const { user } = await createTestUser();
+      await createTestPost(user.id, { content: 'First post' });
+      await createTestPost(user.id, { content: 'Second post' });
+
+      const response = await request(app)
+        .get('/api/posts')
+        .expect(200);
+
+      expect(Array.isArray(response.body)).toBe(true);
+      expect(response.body.length).toBe(2);
+      expect(response.body[0]).toHaveProperty('content');
+      expect(response.body[0]).toHaveProperty('user');
+    });
+
+    it('should return empty array when no posts exist', async () => {
+      const response = await request(app)
+        .get('/api/posts')
+        .expect(200);
+
+      expect(Array.isArray(response.body)).toBe(true);
+      expect(response.body.length).toBe(0);
+    });
+  });
+
+  describe('POST /api/posts', () => {
+    it('should create a new post with authentication', async () => {
+      const { user, token } = await createTestUser();
+
+      const postData = {
+        content: 'This is my new post about street cleaning',
+        imageUrl: 'https://example.com/image.jpg',
+      };
+
+      const response = await request(app)
+        .post('/api/posts')
+        .set('x-auth-token', token)
+        .send(postData)
+        .expect(200);
+
+      expect(response.body).toHaveProperty('content', postData.content);
+      expect(response.body).toHaveProperty('imageUrl', postData.imageUrl);
+      expect(response.body).toHaveProperty('user', user.id);
+    });
+
+    it('should create a post with only content (no image)', async () => {
+      const { token } = await createTestUser();
+
+      const postData = {
+        content: 'Just text content',
+      };
+
+      const response = await request(app)
+        .post('/api/posts')
+        .set('x-auth-token', token)
+        .send(postData)
+        .expect(200);
+
+      expect(response.body).toHaveProperty('content', postData.content);
+    });
+
+    it('should not create post without authentication', async () => {
+      const postData = {
+        content: 'This should fail',
+      };
+
+      const response = await request(app)
+        .post('/api/posts')
+        .send(postData)
+        .expect(401);
+
+      expect(response.body).toHaveProperty('msg', 'No token, authorization denied');
+    });
+  });
+
+  describe('PUT /api/posts/like/:id', () => {
+    it('should like a post', async () => {
+      const { user: author } = await createTestUser({ email: 'author@example.com' });
+      const { user: liker, token } = await createTestUser({ email: 'liker@example.com' });
+      const post = await createTestPost(author.id);
+
+      const response = await request(app)
+        .put(`/api/posts/like/${post.id}`)
+        .set('x-auth-token', token)
+        .expect(200);
+
+      expect(Array.isArray(response.body)).toBe(true);
+      expect(response.body.length).toBe(1);
+      expect(response.body[0]).toBe(liker.id);
+    });
+
+    it('should not like a post twice', async () => {
+      const { user: author } = await createTestUser({ email: 'author@example.com' });
+      const { user: liker, token } = await createTestUser({ email: 'liker@example.com' });
+      const post = await createTestPost(author.id);
+
+      // Like the first time
+      await request(app)
+        .put(`/api/posts/like/${post.id}`)
+        .set('x-auth-token', token)
+        .expect(200);
+
+      // Try to like again
+      const response = await request(app)
+        .put(`/api/posts/like/${post.id}`)
+        .set('x-auth-token', token)
+        .expect(400);
+
+      expect(response.body).toHaveProperty('msg', 'Post already liked');
+    });
+
+    it('should return 404 for non-existent post', async () => {
+      const { token } = await createTestUser();
+      const fakeId = '507f1f77bcf86cd799439011';
+
+      const response = await request(app)
+        .put(`/api/posts/like/${fakeId}`)
+        .set('x-auth-token', token)
+        .expect(404);
+
+      expect(response.body).toHaveProperty('msg', 'Post not found');
+    });
+
+    it('should not like post without authentication', async () => {
+      const { user } = await createTestUser();
+      const post = await createTestPost(user.id);
+
+      const response = await request(app)
+        .put(`/api/posts/like/${post.id}`)
+        .expect(401);
+
+      expect(response.body).toHaveProperty('msg', 'No token, authorization denied');
+    });
+  });
+});

backend/__tests__/routes/reports.test.js

@@ -0,0 +1,180 @@
+const request = require('supertest');
+const express = require('express');
+const reportsRoutes = require('../../routes/reports');
+const Report = require('../../models/Report');
+const { createTestUser, createTestStreet, createTestReport } = require('../utils/testHelpers');
+
+// Create Express app for testing
+const app = express();
+app.use(express.json());
+app.use('/api/reports', reportsRoutes);
+
+describe('Reports Routes', () => {
+  describe('GET /api/reports', () => {
+    it('should get all reports', async () => {
+      const { user } = await createTestUser();
+      const street = await createTestStreet(user.id);
+
+      await createTestReport(user.id, street.id, { type: 'pothole' });
+      await createTestReport(user.id, street.id, { type: 'litter' });
+
+      const response = await request(app)
+        .get('/api/reports')
+        .expect(200);
+
+      expect(Array.isArray(response.body)).toBe(true);
+      expect(response.body.length).toBe(2);
+      expect(response.body[0]).toHaveProperty('type');
+      expect(response.body[0]).toHaveProperty('description');
+    });
+
+    it('should return empty array when no reports exist', async () => {
+      const response = await request(app)
+        .get('/api/reports')
+        .expect(200);
+
+      expect(Array.isArray(response.body)).toBe(true);
+      expect(response.body.length).toBe(0);
+    });
+
+    it('should populate street and user data', async () => {
+      const { user } = await createTestUser({ name: 'Reporter User' });
+      const street = await createTestStreet(user.id, { name: 'Main Street' });
+      await createTestReport(user.id, street.id);
+
+      const response = await request(app)
+        .get('/api/reports')
+        .expect(200);
+
+      expect(response.body[0]).toHaveProperty('street');
+      // Populated fields might be objects or strings depending on the route implementation
+    });
+  });
+
+  describe('POST /api/reports', () => {
+    it('should create a new report with authentication', async () => {
+      const { user, token } = await createTestUser();
+      const street = await createTestStreet(user.id);
+
+      const reportData = {
+        street: street.id,
+        issue: 'Large pothole on Main Street',
+      };
+
+      const response = await request(app)
+        .post('/api/reports')
+        .set('x-auth-token', token)
+        .send(reportData)
+        .expect(200);
+
+      expect(response.body).toHaveProperty('_id');
+      expect(response.body.issue).toBe(reportData.issue);
+      expect(response.body.street.toString()).toBe(street.id);
+
+      // Verify report was created in database
+      const report = await Report.findById(response.body._id);
+      expect(report).toBeTruthy();
+      expect(report.issue).toBe(reportData.issue);
+    });
+
+    it('should reject report creation without authentication', async () => {
+      const { user } = await createTestUser();
+      const street = await createTestStreet(user.id);
+
+      const reportData = {
+        street: street.id,
+        issue: 'Unauthorized report',
+      };
+
+      const response = await request(app)
+        .post('/api/reports')
+        .send(reportData)
+        .expect(401);
+
+      expect(response.body).toHaveProperty('msg', 'No token, authorization denied');
+    });
+
+    it('should handle missing required fields', async () => {
+      const { token } = await createTestUser();
+
+      const response = await request(app)
+        .post('/api/reports')
+        .set('x-auth-token', token)
+        .send({ issue: 'Incomplete report' })
+        .expect(500);
+
+      expect(response.body).toBeDefined();
+    });
+  });
+
+  describe('PUT /api/reports/:id', () => {
+    it('should resolve a report with authentication', async () => {
+      const { user, token } = await createTestUser();
+      const street = await createTestStreet(user.id);
+      const report = await createTestReport(user.id, street.id, {
+        status: 'pending'
+      });
+
+      const response = await request(app)
+        .put(`/api/reports/${report.id}`)
+        .set('x-auth-token', token)
+        .expect(200);
+
+      expect(response.body).toHaveProperty('status', 'resolved');
+
+      // Verify report was updated in database
+      const updatedReport = await Report.findById(report.id);
+      expect(updatedReport.status).toBe('resolved');
+    });
+
+    it('should return 404 for non-existent report', async () => {
+      const { token } = await createTestUser();
+      const fakeId = '507f1f77bcf86cd799439011';
+
+      const response = await request(app)
+        .put(`/api/reports/${fakeId}`)
+        .set('x-auth-token', token)
+        .expect(404);
+
+      expect(response.body).toHaveProperty('msg', 'Report not found');
+    });
+
+    it('should reject resolution without authentication', async () => {
+      const { user } = await createTestUser();
+      const street = await createTestStreet(user.id);
+      const report = await createTestReport(user.id, street.id);
+
+      const response = await request(app)
+        .put(`/api/reports/${report.id}`)
+        .expect(401);
+
+      expect(response.body).toHaveProperty('msg', 'No token, authorization denied');
+    });
+
+    it('should handle invalid report ID format', async () => {
+      const { token } = await createTestUser();
+
+      const response = await request(app)
+        .put('/api/reports/invalid-id')
+        .set('x-auth-token', token)
+        .expect(500);
+
+      expect(response.body).toBeDefined();
+    });
+
+    it('should allow resolving already resolved reports', async () => {
+      const { user, token } = await createTestUser();
+      const street = await createTestStreet(user.id);
+      const report = await createTestReport(user.id, street.id, {
+        status: 'resolved'
+      });
+
+      const response = await request(app)
+        .put(`/api/reports/${report.id}`)
+        .set('x-auth-token', token)
+        .expect(200);
+
+      expect(response.body).toHaveProperty('status', 'resolved');
+    });
+  });
+});

backend/__tests__/routes/rewards.test.js

@@ -0,0 +1,202 @@
+const request = require('supertest');
+const express = require('express');
+const rewardsRoutes = require('../../routes/rewards');
+const Reward = require('../../models/Reward');
+const User = require('../../models/User');
+const { createTestUser, createTestReward } = require('../utils/testHelpers');
+
+// Create Express app for testing
+const app = express();
+app.use(express.json());
+app.use('/api/rewards', rewardsRoutes);
+
+describe('Rewards Routes', () => {
+  describe('GET /api/rewards', () => {
+    it('should get all rewards', async () => {
+      await createTestReward({ name: 'Reward 1', pointsCost: 50 });
+      await createTestReward({ name: 'Reward 2', pointsCost: 100 });
+
+      const response = await request(app)
+        .get('/api/rewards')
+        .expect(200);
+
+      expect(Array.isArray(response.body)).toBe(true);
+      expect(response.body.length).toBe(2);
+      expect(response.body[0]).toHaveProperty('name');
+      expect(response.body[0]).toHaveProperty('pointsCost');
+    });
+
+    it('should return empty array when no rewards exist', async () => {
+      const response = await request(app)
+        .get('/api/rewards')
+        .expect(200);
+
+      expect(Array.isArray(response.body)).toBe(true);
+      expect(response.body.length).toBe(0);
+    });
+  });
+
+  describe('POST /api/rewards', () => {
+    it('should create a new reward with authentication', async () => {
+      const { token } = await createTestUser();
+      const rewardData = {
+        name: 'New Badge',
+        description: 'A shiny new badge',
+        cost: 150,
+        isPremium: false,
+      };
+
+      const response = await request(app)
+        .post('/api/rewards')
+        .set('x-auth-token', token)
+        .send(rewardData)
+        .expect(200);
+
+      expect(response.body).toHaveProperty('_id');
+      expect(response.body.name).toBe(rewardData.name);
+      expect(response.body.description).toBe(rewardData.description);
+
+      // Verify reward was created in database
+      const reward = await Reward.findById(response.body._id);
+      expect(reward).toBeTruthy();
+      expect(reward.name).toBe(rewardData.name);
+    });
+
+    it('should reject reward creation without authentication', async () => {
+      const rewardData = {
+        name: 'Unauthorized Reward',
+        description: 'This should fail',
+        cost: 100,
+      };
+
+      const response = await request(app)
+        .post('/api/rewards')
+        .send(rewardData)
+        .expect(401);
+
+      expect(response.body).toHaveProperty('msg', 'No token, authorization denied');
+    });
+  });
+
+  describe('POST /api/rewards/redeem/:id', () => {
+    it('should allow user to redeem reward with sufficient points', async () => {
+      const { user, token } = await createTestUser();
+
+      // Give user enough points
+      await User.findByIdAndUpdate(user.id, { points: 200 });
+
+      const reward = await createTestReward({
+        name: 'Test Reward',
+        pointsCost: 100,
+        isPremium: false
+      });
+
+      const response = await request(app)
+        .post(`/api/rewards/redeem/${reward.id}`)
+        .set('x-auth-token', token)
+        .expect(200);
+
+      expect(response.body).toHaveProperty('msg', 'Reward redeemed successfully');
+
+      // Verify user points were deducted
+      const updatedUser = await User.findById(user.id);
+      expect(updatedUser.points).toBe(100); // 200 - 100
+    });
+
+    it('should reject redemption without sufficient points', async () => {
+      const { user, token } = await createTestUser();
+
+      // User has 0 points by default
+      const reward = await createTestReward({
+        name: 'Expensive Reward',
+        pointsCost: 100
+      });
+
+      const response = await request(app)
+        .post(`/api/rewards/redeem/${reward.id}`)
+        .set('x-auth-token', token)
+        .expect(400);
+
+      expect(response.body).toHaveProperty('msg', 'Not enough points');
+    });
+
+    it('should reject premium reward redemption for non-premium users', async () => {
+      const { user, token } = await createTestUser();
+
+      // Give user enough points but not premium status
+      await User.findByIdAndUpdate(user.id, { points: 500 });
+
+      const reward = await createTestReward({
+        name: 'Premium Reward',
+        pointsCost: 100,
+        isPremium: true
+      });
+
+      const response = await request(app)
+        .post(`/api/rewards/redeem/${reward.id}`)
+        .set('x-auth-token', token)
+        .expect(403);
+
+      expect(response.body).toHaveProperty('msg', 'Premium reward not available');
+    });
+
+    it('should allow premium users to redeem premium rewards', async () => {
+      const { user, token } = await createTestUser();
+
+      // Give user points and premium status
+      await User.findByIdAndUpdate(user.id, { points: 500, isPremium: true });
+
+      const reward = await createTestReward({
+        name: 'Premium Reward',
+        pointsCost: 100,
+        isPremium: true
+      });
+
+      const response = await request(app)
+        .post(`/api/rewards/redeem/${reward.id}`)
+        .set('x-auth-token', token)
+        .expect(200);
+
+      expect(response.body).toHaveProperty('msg', 'Reward redeemed successfully');
+
+      // Verify user points were deducted
+      const updatedUser = await User.findById(user.id);
+      expect(updatedUser.points).toBe(400); // 500 - 100
+    });
+
+    it('should return 404 for non-existent reward', async () => {
+      const { user, token } = await createTestUser();
+      await User.findByIdAndUpdate(user.id, { points: 500 });
+
+      const fakeId = '507f1f77bcf86cd799439011';
+
+      const response = await request(app)
+        .post(`/api/rewards/redeem/${fakeId}`)
+        .set('x-auth-token', token)
+        .expect(404);
+
+      expect(response.body).toHaveProperty('msg', 'Reward not found');
+    });
+
+    it('should reject redemption without authentication', async () => {
+      const reward = await createTestReward();
+
+      const response = await request(app)
+        .post(`/api/rewards/redeem/${reward.id}`)
+        .expect(401);
+
+      expect(response.body).toHaveProperty('msg', 'No token, authorization denied');
+    });
+
+    it('should handle invalid reward ID format', async () => {
+      const { token } = await createTestUser();
+
+      const response = await request(app)
+        .post('/api/rewards/redeem/invalid-id')
+        .set('x-auth-token', token)
+        .expect(500);
+
+      expect(response.body).toBeDefined();
+    });
+  });
+});

backend/__tests__/routes/streets.test.js

@@ -0,0 +1,165 @@
+const request = require('supertest');
+const express = require('express');
+const streetRoutes = require('../../routes/streets');
+const { createTestUser, createTestStreet } = require('../utils/testHelpers');
+
+const app = express();
+app.use(express.json());
+app.use('/api/streets', streetRoutes);
+
+describe('Street Routes', () => {
+  describe('GET /api/streets', () => {
+    it('should get all streets', async () => {
+      const { user } = await createTestUser();
+      await createTestStreet(user.id, { name: 'Main Street' });
+      await createTestStreet(user.id, { name: 'Oak Avenue' });
+
+      const response = await request(app)
+        .get('/api/streets')
+        .expect(200);
+
+      expect(Array.isArray(response.body)).toBe(true);
+      expect(response.body.length).toBe(2);
+      expect(response.body[0]).toHaveProperty('name');
+      expect(response.body[0]).toHaveProperty('location');
+    });
+
+    it('should return empty array when no streets exist', async () => {
+      const response = await request(app)
+        .get('/api/streets')
+        .expect(200);
+
+      expect(Array.isArray(response.body)).toBe(true);
+      expect(response.body.length).toBe(0);
+    });
+  });
+
+  describe('GET /api/streets/:id', () => {
+    it('should get a single street by id', async () => {
+      const { user } = await createTestUser();
+      const street = await createTestStreet(user.id, { name: 'Elm Street' });
+
+      const response = await request(app)
+        .get(`/api/streets/${street.id}`)
+        .expect(200);
+
+      expect(response.body).toHaveProperty('_id', street.id);
+      expect(response.body).toHaveProperty('name', 'Elm Street');
+    });
+
+    it('should return 404 for non-existent street', async () => {
+      const fakeId = '507f1f77bcf86cd799439011';
+
+      const response = await request(app)
+        .get(`/api/streets/${fakeId}`)
+        .expect(404);
+
+      expect(response.body).toHaveProperty('msg', 'Street not found');
+    });
+
+    it('should handle invalid street ID format', async () => {
+      const response = await request(app)
+        .get('/api/streets/invalid-id')
+        .expect(500);
+
+      expect(response.body).toBeDefined();
+    });
+  });
+
+  describe('POST /api/streets', () => {
+    it('should create a new street with authentication', async () => {
+      const { token } = await createTestUser();
+
+      const streetData = {
+        name: 'Broadway',
+        location: {
+          type: 'Point',
+          coordinates: [-73.989308, 40.756432]
+        }
+      };
+
+      const response = await request(app)
+        .post('/api/streets')
+        .set('x-auth-token', token)
+        .send(streetData)
+        .expect(200);
+
+      expect(response.body).toHaveProperty('name', streetData.name);
+      expect(response.body).toHaveProperty('location');
+      expect(response.body.location).toHaveProperty('coordinates');
+    });
+
+    it('should not create street without authentication', async () => {
+      const streetData = {
+        name: 'Broadway',
+        location: {
+          type: 'Point',
+          coordinates: [-73.989308, 40.756432]
+        }
+      };
+
+      const response = await request(app)
+        .post('/api/streets')
+        .send(streetData)
+        .expect(401);
+
+      expect(response.body).toHaveProperty('msg', 'No token, authorization denied');
+    });
+  });
+
+  describe('PUT /api/streets/adopt/:id', () => {
+    it('should adopt an available street', async () => {
+      const { user, token } = await createTestUser();
+      const street = await createTestStreet(user.id, {
+        status: 'available',
+        adoptedBy: null
+      });
+
+      const response = await request(app)
+        .put(`/api/streets/adopt/${street.id}`)
+        .set('x-auth-token', token)
+        .expect(200);
+
+      expect(response.body).toHaveProperty('status', 'adopted');
+      expect(response.body).toHaveProperty('adoptedBy', user.id);
+    });
+
+    it('should not adopt an already adopted street', async () => {
+      const { user, token } = await createTestUser();
+      const street = await createTestStreet(user.id, {
+        status: 'adopted',
+        adoptedBy: user.id
+      });
+
+      const response = await request(app)
+        .put(`/api/streets/adopt/${street.id}`)
+        .set('x-auth-token', token)
+        .expect(400);
+
+      expect(response.body).toHaveProperty('msg', 'Street already adopted');
+    });
+
+    it('should return 404 for non-existent street', async () => {
+      const { token } = await createTestUser();
+      const fakeId = '507f1f77bcf86cd799439011';
+
+      const response = await request(app)
+        .put(`/api/streets/adopt/${fakeId}`)
+        .set('x-auth-token', token)
+        .expect(404);
+
+      expect(response.body).toHaveProperty('msg', 'Street not found');
+    });
+
+    it('should not adopt street without authentication', async () => {
+      const { user } = await createTestUser();
+      const street = await createTestStreet(user.id);
+
+      const response = await request(app)
+        .put(`/api/streets/adopt/${street.id}`)
+        .expect(401);
+
+      expect(response.body).toHaveProperty('msg', 'No token, authorization denied');
+    });
+  });
+});

backend/__tests__/routes/tasks.test.js

@@ -0,0 +1,146 @@
+const request = require('supertest');
+const express = require('express');
+const taskRoutes = require('../../routes/tasks');
+const { createTestUser, createTestStreet, createTestTask } = require('../utils/testHelpers');
+
+const app = express();
+app.use(express.json());
+app.use('/api/tasks', taskRoutes);
+
+describe('Task Routes', () => {
+  describe('GET /api/tasks', () => {
+    it('should get all tasks completed by authenticated user', async () => {
+      const { user, token } = await createTestUser();
+      const street = await createTestStreet(user.id);
+
+      await createTestTask(user.id, street.id, {
+        completedBy: user.id,
+        status: 'completed'
+      });
+      await createTestTask(user.id, street.id, {
+        completedBy: user.id,
+        status: 'completed'
+      });
+
+      const response = await request(app)
+        .get('/api/tasks')
+        .set('x-auth-token', token)
+        .expect(200);
+
+      expect(Array.isArray(response.body)).toBe(true);
+      expect(response.body.length).toBe(2);
+    });
+
+    it('should return empty array when user has no completed tasks', async () => {
+      const { token } = await createTestUser();
+
+      const response = await request(app)
+        .get('/api/tasks')
+        .set('x-auth-token', token)
+        .expect(200);
+
+      expect(Array.isArray(response.body)).toBe(true);
+      expect(response.body.length).toBe(0);
+    });
+
+    it('should not get tasks without authentication', async () => {
+      const response = await request(app)
+        .get('/api/tasks')
+        .expect(401);
+
+      expect(response.body).toHaveProperty('msg', 'No token, authorization denied');
+    });
+  });
+
+  describe('POST /api/tasks', () => {
+    it('should create a new task with authentication', async () => {
+      const { user, token } = await createTestUser();
+      const street = await createTestStreet(user.id);
+
+      const taskData = {
+        street: street.id,
+        description: 'Clean the sidewalk',
+      };
+
+      const response = await request(app)
+        .post('/api/tasks')
+        .set('x-auth-token', token)
+        .send(taskData)
+        .expect(200);
+
+      expect(response.body).toHaveProperty('description', taskData.description);
+      expect(response.body).toHaveProperty('street', street.id);
+    });
+
+    it('should not create task without authentication', async () => {
+      const { user } = await createTestUser();
+      const street = await createTestStreet(user.id);
+
+      const taskData = {
+        street: street.id,
+        description: 'Clean the sidewalk',
+      };
+
+      const response = await request(app)
+        .post('/api/tasks')
+        .send(taskData)
+        .expect(401);
+
+      expect(response.body).toHaveProperty('msg', 'No token, authorization denied');
+    });
+  });
+
+  describe('PUT /api/tasks/:id', () => {
+    it('should complete a task', async () => {
+      const { user, token } = await createTestUser();
+      const street = await createTestStreet(user.id);
+      const task = await createTestTask(user.id, street.id, {
+        status: 'pending',
+        completedBy: null
+      });
+
+      const response = await request(app)
+        .put(`/api/tasks/${task.id}`)
+        .set('x-auth-token', token)
+        .expect(200);
+
+      expect(response.body).toHaveProperty('status', 'completed');
+      expect(response.body).toHaveProperty('completedBy', user.id);
+    });
+
+    it('should return 404 for non-existent task', async () => {
+      const { token } = await createTestUser();
+      const fakeId = '507f1f77bcf86cd799439011';
+
+      const response = await request(app)
+        .put(`/api/tasks/${fakeId}`)
+        .set('x-auth-token', token)
+        .expect(404);
+
+      expect(response.body).toHaveProperty('msg', 'Task not found');
+    });
+
+    it('should not complete task without authentication', async () => {
+      const { user } = await createTestUser();
+      const street = await createTestStreet(user.id);
+      const task = await createTestTask(user.id, street.id);
+
+      const response = await request(app)
+        .put(`/api/tasks/${task.id}`)
+        .expect(401);
+
+      expect(response.body).toHaveProperty('msg', 'No token, authorization denied');
+    });
+
+    it('should handle invalid task ID format', async () => {
+      const { token } = await createTestUser();
+
+      const response = await request(app)
+        .put('/api/tasks/invalid-id')
+        .set('x-auth-token', token)
+        .expect(500);
+
+      expect(response.body).toBeDefined();
+    });
+  });
+});

backend/__tests__/setup.js

@@ -0,0 +1,46 @@
+const { MongoMemoryServer } = require('mongodb-memory-server');
+const mongoose = require('mongoose');
+
+let mongoServer;
+
+// Setup before all tests
+beforeAll(async () => {
+  // Create in-memory MongoDB instance
+  mongoServer = await MongoMemoryServer.create();
+  const mongoUri = mongoServer.getUri();
+
+  // Set test environment variables
+  process.env.JWT_SECRET = 'test-jwt-secret';
+  process.env.NODE_ENV = 'test';
+
+  // Connect to in-memory database
+  await mongoose.connect(mongoUri, {
+    useNewUrlParser: true,
+    useUnifiedTopology: true,
+  });
+});
+
+// Cleanup after each test
+afterEach(async () => {
+  const collections = mongoose.connection.collections;
+  for (const key in collections) {
+    await collections[key].deleteMany({});
+  }
+});
+
+// Cleanup after all tests
+afterAll(async () => {
+  await mongoose.connection.dropDatabase();
+  await mongoose.connection.close();
+  await mongoServer.stop();
+});
+
+// Suppress console logs during tests unless there's an error
+global.console = {
+  ...console,
+  log: jest.fn(),
+  debug: jest.fn(),
+  info: jest.fn(),
+  warn: jest.fn(),
+  error: console.error, // Keep error logging
+};

backend/__tests__/utils/testHelpers.js

@@ -0,0 +1,174 @@
+const jwt = require('jsonwebtoken');
+const bcrypt = require('bcryptjs');
+const User = require('../../models/User');
+const Street = require('../../models/Street');
+const Task = require('../../models/Task');
+const Post = require('../../models/Post');
+const Event = require('../../models/Event');
+const Reward = require('../../models/Reward');
+const Report = require('../../models/Report');
+
+/**
+ * Create a test user and return user object with token
+ */
+async function createTestUser(overrides = {}) {
+  const defaultUser = {
+    name: 'Test User',
+    email: 'test@example.com',
+    password: 'password123',
+  };
+
+  const userData = { ...defaultUser, ...overrides };
+
+  const salt = await bcrypt.genSalt(10);
+  const hashedPassword = await bcrypt.hash(userData.password, salt);
+
+  const user = await User.create({
+    name: userData.name,
+    email: userData.email,
+    password: hashedPassword,
+  });
+
+  const token = jwt.sign(
+    { user: { id: user.id } },
+    process.env.JWT_SECRET,
+    { expiresIn: 3600 }
+  );
+
+  return { user, token };
+}
+
+/**
+ * Create multiple test users
+ */
+async function createTestUsers(count = 2) {
+  const users = [];
+  for (let i = 0; i < count; i++) {
+    const { user, token } = await createTestUser({
+      name: `Test User ${i + 1}`,
+      email: `test${i + 1}@example.com`,
+    });
+    users.push({ user, token });
+  }
+  return users;
+}
+
+/**
+ * Create a test street
+ */
+async function createTestStreet(userId, overrides = {}) {
+  const defaultStreet = {
+    name: 'Test Street',
+    location: {
+      type: 'Point',
+      coordinates: [-73.935242, 40.730610],
+    },
+    city: 'Test City',
+    state: 'TS',
+    adoptedBy: userId,
+  };
+
+  const street = await Street.create({ ...defaultStreet, ...overrides });
+  return street;
+}
+
+/**
+ * Create a test task
+ */
+async function createTestTask(userId, streetId, overrides = {}) {
+  const defaultTask = {
+    street: streetId,
+    description: 'Test task description',
+    type: 'cleaning',
+    createdBy: userId,
+    status: 'pending',
+  };
+
+  const task = await Task.create({ ...defaultTask, ...overrides });
+  return task;
+}
+
+/**
+ * Create a test post
+ */
+async function createTestPost(userId, overrides = {}) {
+  const defaultPost = {
+    user: userId,
+    content: 'Test post content',
+    type: 'text',
+  };
+
+  const post = await Post.create({ ...defaultPost, ...overrides });
+  return post;
+}
+
+/**
+ * Create a test event
+ */
+async function createTestEvent(userId, overrides = {}) {
+  const defaultEvent = {
+    title: 'Test Event',
+    description: 'Test event description',
+    date: new Date(Date.now() + 86400000), // Tomorrow
+    location: 'Test Location',
+    organizer: userId,
+  };
+
+  const event = await Event.create({ ...defaultEvent, ...overrides });
+  return event;
+}
+
+/**
+ * Create a test reward
+ */
+async function createTestReward(overrides = {}) {
+  const defaultReward = {
+    name: 'Test Reward',
+    description: 'Test reward description',
+    pointsCost: 100,
+  };
+
+  const reward = await Reward.create({ ...defaultReward, ...overrides });
+  return reward;
+}
+
+/**
+ * Create a test report
+ */
+async function createTestReport(userId, streetId, overrides = {}) {
+  const defaultReport = {
+    street: streetId,
+    reporter: userId,
+    type: 'pothole',
+    description: 'Test report description',
+    status: 'pending',
+  };
+
+  const report = await Report.create({ ...defaultReport, ...overrides });
+  return report;
+}
+
+/**
+ * Clean up all test data
+ */
+async function cleanupDatabase() {
+  await User.deleteMany({});
+  await Street.deleteMany({});
+  await Task.deleteMany({});
+  await Post.deleteMany({});
+  await Event.deleteMany({});
+  await Reward.deleteMany({});
+  await Report.deleteMany({});
+}
+
+module.exports = {
+  createTestUser,
+  createTestUsers,
+  createTestStreet,
+  createTestTask,
+  createTestPost,
+  createTestEvent,
+  createTestReward,
+  createTestReport,
+  cleanupDatabase,
+};

backend/jest.config.js

@@ -0,0 +1,26 @@
+module.exports = {
+  testEnvironment: 'node',
+  coverageDirectory: 'coverage',
+  collectCoverageFrom: [
+    'routes/**/*.js',
+    'middleware/**/*.js',
+    'models/**/*.js',
+    '!**/node_modules/**',
+    '!**/coverage/**'
+  ],
+  testMatch: [
+    '**/__tests__/**/*.test.js',
+    '**/?(*.)+(spec|test).js'
+  ],
+  coverageThreshold: {
+    global: {
+      branches: 70,
+      functions: 70,
+      lines: 70,
+      statements: 70
+    }
+  },
+  setupFilesAfterEnv: ['<rootDir>/__tests__/setup.js'],
+  testTimeout: 30000,
+  verbose: true
+};

backend/scripts/seedBadges.js

@@ -0,0 +1,269 @@
+require("dotenv").config();
+const mongoose = require("mongoose");
+const Badge = require("../models/Badge");
+
+/**
+ * Initial badge definitions
+ * These badges will be auto-awarded when users meet the criteria
+ */
+const badges = [
+  // Street Adoption Badges
+  {
+    name: "First Adoption",
+    description: "Adopted your first street",
+    icon: "🏡",
+    criteria: {
+      type: "street_adoptions",
+      threshold: 1,
+    },
+    rarity: "common",
+    order: 1,
+  },
+  {
+    name: "Street Adopter",
+    description: "Adopted 5 streets",
+    icon: "🏘️",
+    criteria: {
+      type: "street_adoptions",
+      threshold: 5,
+    },
+    rarity: "rare",
+    order: 2,
+  },
+  {
+    name: "Neighborhood Champion",
+    description: "Adopted 10 streets",
+    icon: "🌆",
+    criteria: {
+      type: "street_adoptions",
+      threshold: 10,
+    },
+    rarity: "epic",
+    order: 3,
+  },
+  {
+    name: "City Guardian",
+    description: "Adopted 25 streets",
+    icon: "🏙️",
+    criteria: {
+      type: "street_adoptions",
+      threshold: 25,
+    },
+    rarity: "legendary",
+    order: 4,
+  },
+
+  // Task Completion Badges
+  {
+    name: "First Task",
+    description: "Completed your first task",
+    icon: "✅",
+    criteria: {
+      type: "task_completions",
+      threshold: 1,
+    },
+    rarity: "common",
+    order: 5,
+  },
+  {
+    name: "Task Master",
+    description: "Completed 10 tasks",
+    icon: "🎯",
+    criteria: {
+      type: "task_completions",
+      threshold: 10,
+    },
+    rarity: "rare",
+    order: 6,
+  },
+  {
+    name: "Dedicated Worker",
+    description: "Completed 50 tasks",
+    icon: "🛠️",
+    criteria: {
+      type: "task_completions",
+      threshold: 50,
+    },
+    rarity: "epic",
+    order: 7,
+  },
+  {
+    name: "Maintenance Legend",
+    description: "Completed 100 tasks",
+    icon: "⚡",
+    criteria: {
+      type: "task_completions",
+      threshold: 100,
+    },
+    rarity: "legendary",
+    order: 8,
+  },
+
+  // Post Creation Badges
+  {
+    name: "First Post",
+    description: "Created your first post",
+    icon: "📝",
+    criteria: {
+      type: "post_creations",
+      threshold: 1,
+    },
+    rarity: "common",
+    order: 9,
+  },
+  {
+    name: "Social Butterfly",
+    description: "Created 25 posts",
+    icon: "🦋",
+    criteria: {
+      type: "post_creations",
+      threshold: 25,
+    },
+    rarity: "rare",
+    order: 10,
+  },
+  {
+    name: "Community Voice",
+    description: "Created 100 posts",
+    icon: "📢",
+    criteria: {
+      type: "post_creations",
+      threshold: 100,
+    },
+    rarity: "epic",
+    order: 11,
+  },
+  {
+    name: "Social Media Star",
+    description: "Created 250 posts",
+    icon: "⭐",
+    criteria: {
+      type: "post_creations",
+      threshold: 250,
+    },
+    rarity: "legendary",
+    order: 12,
+  },
+
+  // Event Participation Badges
+  {
+    name: "Event Participant",
+    description: "Participated in your first event",
+    icon: "🎉",
+    criteria: {
+      type: "event_participations",
+      threshold: 1,
+    },
+    rarity: "common",
+    order: 13,
+  },
+  {
+    name: "Community Leader",
+    description: "Participated in 5 events",
+    icon: "👥",
+    criteria: {
+      type: "event_participations",
+      threshold: 5,
+    },
+    rarity: "rare",
+    order: 14,
+  },
+  {
+    name: "Event Enthusiast",
+    description: "Participated in 15 events",
+    icon: "🎊",
+    criteria: {
+      type: "event_participations",
+      threshold: 15,
+    },
+    rarity: "epic",
+    order: 15,
+  },
+  {
+    name: "Community Pillar",
+    description: "Participated in 30 events",
+    icon: "🏛️",
+    criteria: {
+      type: "event_participations",
+      threshold: 30,
+    },
+    rarity: "legendary",
+    order: 16,
+  },
+
+  // Points Badges
+  {
+    name: "Point Collector",
+    description: "Earned 1,000 points",
+    icon: "💰",
+    criteria: {
+      type: "points_earned",
+      threshold: 1000,
+    },
+    rarity: "rare",
+    order: 17,
+  },
+  {
+    name: "Point Hoarder",
+    description: "Earned 5,000 points",
+    icon: "💎",
+    criteria: {
+      type: "points_earned",
+      threshold: 5000,
+    },
+    rarity: "epic",
+    order: 18,
+  },
+  {
+    name: "Point Master",
+    description: "Earned 10,000 points",
+    icon: "👑",
+    criteria: {
+      type: "points_earned",
+      threshold: 10000,
+    },
+    rarity: "legendary",
+    order: 19,
+  },
+];
+
+/**
+ * Seed badges into the database
+ */
+async function seedBadges() {
+  try {
+    // Connect to MongoDB
+    await mongoose.connect(process.env.MONGO_URI, {
+      useNewUrlParser: true,
+      useUnifiedTopology: true,
+    });
+
+    console.log("Connected to MongoDB");
+
+    // Clear existing badges (optional - remove if you want to preserve existing badges)
+    await Badge.deleteMany({});
+    console.log("Cleared existing badges");
+
+    // Insert new badges
+    const createdBadges = await Badge.insertMany(badges);
+    console.log(`Successfully seeded ${createdBadges.length} badges`);
+
+    // Display created badges
+    createdBadges.forEach((badge) => {
+      console.log(
+        `  ${badge.icon} ${badge.name} (${badge.rarity}) - ${badge.description}`
+      );
+    });
+
+    // Close connection
+    await mongoose.connection.close();
+    console.log("\nDatabase connection closed");
+    process.exit(0);
+  } catch (error) {
+    console.error("Error seeding badges:", error);
+    process.exit(1);
+  }
+}
+
+// Run the seeder
+seedBadges();