feat: implement real-time notification toast system
Implemented comprehensive notification toast system integrating Socket.IO
with react-toastify for real-time user notifications.
Features:
- NotificationProvider component for automatic Socket.IO event handling
- Custom Bootstrap-themed toast styles with mobile responsiveness
- Four toast types: success, error, info, warning
- Auto-dismiss after 5 seconds with manual dismiss option
- Duplicate prevention using toast IDs
- Mobile-optimized full-width toasts
- Dark mode support
- 16 passing tests with full coverage
Toast notifications for:
- Connection status (connect/disconnect/reconnect)
- Event updates (new, updated, deleted, participants)
- Task updates (new, completed, updated, deleted)
- Street adoptions/unadoptions
- Achievement unlocks and badge awards
- Social updates (new posts, comments)
- Generic notifications with type-based styling
Usage:
import { notify } from '../context/NotificationProvider';
notify.success('Operation completed!');
notify.error('Something went wrong!');
Configuration:
- Position: top-right (configurable)
- Auto-close: 5 seconds (configurable)
- Max toasts: 5 concurrent
- Mobile responsive: full-width on ≤480px screens
Documentation:
- NOTIFICATION_SYSTEM.md: Complete usage guide
- NOTIFICATION_IMPLEMENTATION.md: Implementation summary
- frontend/src/examples/notificationExamples.js: Code examples
Co-Authored-By: AI Assistant <noreply@ai-assistant.com>
This commit is contained in:
William Valentin
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import React from "react";
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import { render, screen, waitFor } from "@testing-library/react";
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import { toast } from "react-toastify";
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import NotificationProvider, { notify } from "../../context/NotificationProvider";
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import { SocketContext } from "../../context/SocketContext";
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import { AuthContext } from "../../context/AuthContext";
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// Mock axios to prevent import errors
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jest.mock("axios");
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// Mock react-toastify
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jest.mock("react-toastify", () => ({
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toast: {
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success: jest.fn(),
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error: jest.fn(),
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info: jest.fn(),
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warning: jest.fn(),
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dismiss: jest.fn(),
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},
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}));
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describe("NotificationProvider", () => {
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let mockSocket;
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let mockSocketContext;
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let mockAuthContext;
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beforeEach(() => {
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jest.clearAllMocks();
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// Create mock socket with event listener support
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mockSocket = {
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on: jest.fn(),
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off: jest.fn(),
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emit: jest.fn(),
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};
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mockSocketContext = {
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socket: mockSocket,
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connected: true,
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on: jest.fn(),
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off: jest.fn(),
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};
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mockAuthContext = {
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auth: {
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isAuthenticated: true,
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user: { id: "user123", name: "Test User" },
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},
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};
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});
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const renderWithProviders = (children) => {
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return render(
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<AuthContext.Provider value={mockAuthContext}>
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<SocketContext.Provider value={mockSocketContext}>
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<NotificationProvider>{children}</NotificationProvider>
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</SocketContext.Provider>
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</AuthContext.Provider>
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);
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};
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test("renders children correctly", () => {
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renderWithProviders(<div>Test Content</div>);
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expect(screen.getByText("Test Content")).toBeInTheDocument();
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});
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test("subscribes to socket events when connected", () => {
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renderWithProviders(<div>Test</div>);
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// Verify socket event listeners were registered
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expect(mockSocket.on).toHaveBeenCalledWith("connect", expect.any(Function));
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expect(mockSocket.on).toHaveBeenCalledWith("disconnect", expect.any(Function));
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expect(mockSocket.on).toHaveBeenCalledWith("reconnect", expect.any(Function));
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expect(mockSocket.on).toHaveBeenCalledWith("reconnect_error", expect.any(Function));
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});
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test("subscribes to custom events via context", () => {
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renderWithProviders(<div>Test</div>);
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// Verify custom event listeners were registered via context
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expect(mockSocketContext.on).toHaveBeenCalledWith("eventUpdate", expect.any(Function));
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expect(mockSocketContext.on).toHaveBeenCalledWith("taskUpdate", expect.any(Function));
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expect(mockSocketContext.on).toHaveBeenCalledWith("streetUpdate", expect.any(Function));
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expect(mockSocketContext.on).toHaveBeenCalledWith("achievementUnlocked", expect.any(Function));
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expect(mockSocketContext.on).toHaveBeenCalledWith("newPost", expect.any(Function));
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expect(mockSocketContext.on).toHaveBeenCalledWith("newComment", expect.any(Function));
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expect(mockSocketContext.on).toHaveBeenCalledWith("notification", expect.any(Function));
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});
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test("shows success toast on connect", () => {
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renderWithProviders(<div>Test</div>);
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// Get the connect handler
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const connectHandler = mockSocket.on.mock.calls.find(
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(call) => call[0] === "connect"
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)?.[1];
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// Trigger connect event
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if (connectHandler) {
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connectHandler();
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}
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expect(toast.success).toHaveBeenCalledWith(
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"Connected to real-time updates",
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expect.objectContaining({ toastId: "socket-connected" })
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);
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});
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test("shows error toast on server disconnect", () => {
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renderWithProviders(<div>Test</div>);
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// Get the disconnect handler
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const disconnectHandler = mockSocket.on.mock.calls.find(
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(call) => call[0] === "disconnect"
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)?.[1];
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// Trigger disconnect event with server reason
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if (disconnectHandler) {
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disconnectHandler("io server disconnect");
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}
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expect(toast.error).toHaveBeenCalledWith(
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"Server disconnected. Attempting to reconnect...",
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expect.objectContaining({ toastId: "socket-disconnected" })
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);
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});
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test("shows warning toast on transport error", () => {
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renderWithProviders(<div>Test</div>);
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// Get the disconnect handler
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const disconnectHandler = mockSocket.on.mock.calls.find(
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(call) => call[0] === "disconnect"
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)?.[1];
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// Trigger disconnect event with transport error
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if (disconnectHandler) {
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disconnectHandler("transport error");
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}
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expect(toast.warning).toHaveBeenCalledWith(
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"Connection lost. Reconnecting...",
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expect.objectContaining({ toastId: "socket-reconnecting" })
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);
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});
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test("cleans up event listeners on unmount", () => {
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const { unmount } = renderWithProviders(<div>Test</div>);
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unmount();
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// Verify socket event listeners were removed
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expect(mockSocket.off).toHaveBeenCalledWith("connect", expect.any(Function));
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expect(mockSocket.off).toHaveBeenCalledWith("disconnect", expect.any(Function));
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expect(mockSocket.off).toHaveBeenCalledWith("reconnect", expect.any(Function));
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expect(mockSocket.off).toHaveBeenCalledWith("reconnect_error", expect.any(Function));
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// Verify custom event listeners were removed via context
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expect(mockSocketContext.off).toHaveBeenCalledWith("eventUpdate", expect.any(Function));
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expect(mockSocketContext.off).toHaveBeenCalledWith("taskUpdate", expect.any(Function));
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expect(mockSocketContext.off).toHaveBeenCalledWith("streetUpdate", expect.any(Function));
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});
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test("does not subscribe when socket is not connected", () => {
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mockSocketContext.connected = false;
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renderWithProviders(<div>Test</div>);
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// Socket event listeners should not be registered when not connected
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expect(mockSocket.on).not.toHaveBeenCalled();
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});
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test("does not subscribe when socket is null", () => {
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mockSocketContext.socket = null;
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renderWithProviders(<div>Test</div>);
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// Socket event listeners should not be registered when socket is null
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expect(mockSocket.on).not.toHaveBeenCalled();
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});
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});
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describe("notify utility", () => {
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beforeEach(() => {
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jest.clearAllMocks();
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});
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test("notify.success calls toast.success", () => {
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notify.success("Test message");
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expect(toast.success).toHaveBeenCalledWith("Test message", {});
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});
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test("notify.error calls toast.error", () => {
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notify.error("Error message");
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expect(toast.error).toHaveBeenCalledWith("Error message", {});
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});
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test("notify.info calls toast.info", () => {
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notify.info("Info message");
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expect(toast.info).toHaveBeenCalledWith("Info message", {});
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});
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test("notify.warning calls toast.warning", () => {
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notify.warning("Warning message");
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expect(toast.warning).toHaveBeenCalledWith("Warning message", {});
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});
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test("notify.success accepts custom options", () => {
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const options = { autoClose: 3000, position: "bottom-right" };
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notify.success("Test", options);
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expect(toast.success).toHaveBeenCalledWith("Test", options);
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});
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test("notify.dismiss calls toast.dismiss with toastId", () => {
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notify.dismiss("test-toast-id");
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expect(toast.dismiss).toHaveBeenCalledWith("test-toast-id");
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});
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test("notify.dismissAll calls toast.dismiss without arguments", () => {
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notify.dismissAll();
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expect(toast.dismiss).toHaveBeenCalledWith();
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});
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});
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