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- Implemented unit tests for the ErrorHandler class, covering error handling, frequency tracking, and performance warnings. - Created integration tests for input validation, error handling, auto-save functionality, and search/filter systems. - Developed unit tests for the DataFilter, QuickFilters, and SearchHistory classes to ensure filtering logic works as expected. - Added tests for the SearchFilterWidget UI component, verifying initialization, filter functionality, and responsiveness. - Included edge case tests for error handling without UI manager and handling of None values.
254 lines
9.2 KiB
Python
254 lines
9.2 KiB
Python
"""Tests for auto-save and backup system."""
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import pytest
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import tempfile
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import os
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import shutil
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from unittest.mock import MagicMock, patch
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from datetime import datetime
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import pandas as pd
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from src.auto_save import AutoSaveManager
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class TestAutoSaveManager:
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"""Test cases for AutoSaveManager class."""
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def setup_method(self):
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"""Set up test fixtures."""
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# Create temporary directories for testing
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self.test_dir = tempfile.mkdtemp()
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self.backup_dir = os.path.join(self.test_dir, "backups")
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self.test_data_file = os.path.join(self.test_dir, "test_data.csv")
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# Create test data file
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test_data = pd.DataFrame({
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'Date': ['2024-01-01', '2024-01-02'],
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'Notes': ['Test note 1', 'Test note 2']
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})
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test_data.to_csv(self.test_data_file, index=False)
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# Mock callbacks
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self.mock_status_callback = MagicMock()
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self.mock_error_callback = MagicMock()
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# Create AutoSaveManager instance
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self.auto_save = AutoSaveManager(
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data_file_path=self.test_data_file,
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backup_dir=self.backup_dir,
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status_callback=self.mock_status_callback,
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error_callback=self.mock_error_callback,
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interval_minutes=0.1, # Very short interval for testing
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max_backups=3
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)
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def teardown_method(self):
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"""Clean up test fixtures."""
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if hasattr(self, 'auto_save'):
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self.auto_save.stop()
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if os.path.exists(self.test_dir):
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shutil.rmtree(self.test_dir)
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def test_initialization(self):
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"""Test AutoSaveManager initialization."""
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assert self.auto_save.data_file_path == self.test_data_file
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assert self.auto_save.backup_dir == self.backup_dir
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assert self.auto_save.interval_minutes == 0.1
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assert self.auto_save.max_backups == 3
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assert not self.auto_save.is_running
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def test_backup_directory_creation(self):
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"""Test that backup directory is created."""
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# Directory should be created during initialization
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assert os.path.exists(self.backup_dir)
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assert os.path.isdir(self.backup_dir)
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def test_create_backup(self):
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"""Test backup creation."""
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backup_file = self.auto_save.create_backup("test_backup")
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# Verify backup file exists
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assert os.path.exists(backup_file)
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assert backup_file.startswith(self.backup_dir)
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assert "test_backup" in backup_file
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# Verify backup content matches original
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original_data = pd.read_csv(self.test_data_file)
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backup_data = pd.read_csv(backup_file)
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pd.testing.assert_frame_equal(original_data, backup_data)
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def test_create_backup_nonexistent_file(self):
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"""Test backup creation when source file doesn't exist."""
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auto_save = AutoSaveManager(
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data_file_path="/nonexistent/file.csv",
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backup_dir=self.backup_dir,
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status_callback=self.mock_status_callback,
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error_callback=self.mock_error_callback
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)
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backup_file = auto_save.create_backup("test")
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assert backup_file is None
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# Error callback should have been called
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self.mock_error_callback.assert_called()
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def test_cleanup_old_backups(self):
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"""Test cleanup of old backups."""
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# Create more backups than max_backups
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backup_files = []
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for i in range(5):
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backup_file = self.auto_save.create_backup(f"test_{i}")
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backup_files.append(backup_file)
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# Perform cleanup
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self.auto_save._cleanup_old_backups()
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# Should only have max_backups files remaining
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remaining_files = [f for f in backup_files if os.path.exists(f)]
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assert len(remaining_files) <= self.auto_save.max_backups
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def test_start_and_stop(self):
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"""Test starting and stopping auto-save."""
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# Start auto-save
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self.auto_save.start()
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assert self.auto_save.is_running
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# Stop auto-save
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self.auto_save.stop()
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assert not self.auto_save.is_running
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def test_get_backup_files(self):
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"""Test getting list of backup files."""
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# Create some backups
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self.auto_save.create_backup("backup1")
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self.auto_save.create_backup("backup2")
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backup_files = self.auto_save.get_backup_files()
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assert len(backup_files) >= 2
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assert all(os.path.exists(f) for f in backup_files)
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assert all(f.endswith('.csv') for f in backup_files)
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def test_restore_from_backup(self):
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"""Test restoring from backup."""
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# Create a backup
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backup_file = self.auto_save.create_backup("test_restore")
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# Modify original file
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modified_data = pd.DataFrame({
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'Date': ['2024-01-03'],
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'Notes': ['Modified note']
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})
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modified_data.to_csv(self.test_data_file, index=False)
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# Restore from backup
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success = self.auto_save.restore_from_backup(backup_file)
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assert success
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# Verify restoration
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restored_data = pd.read_csv(self.test_data_file)
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assert len(restored_data) == 2 # Original had 2 rows
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assert 'Test note 1' in restored_data['Notes'].values
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def test_restore_from_nonexistent_backup(self):
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"""Test restoring from nonexistent backup."""
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success = self.auto_save.restore_from_backup("/nonexistent/backup.csv")
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assert not success
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self.mock_error_callback.assert_called()
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def test_backup_filename_format(self):
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"""Test backup filename format."""
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backup_file = self.auto_save.create_backup("test_format")
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filename = os.path.basename(backup_file)
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# Should contain source filename, suffix, and timestamp
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assert "test_data" in filename
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assert "test_format" in filename
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assert filename.endswith('.csv')
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# Should have timestamp in format
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assert len(filename.split('_')) >= 4 # name_suffix_date_time.csv
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def test_backup_with_special_characters(self):
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"""Test backup creation with special characters in suffix."""
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backup_file = self.auto_save.create_backup("test with spaces & symbols!")
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assert os.path.exists(backup_file)
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# Special characters should be handled appropriately
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assert os.path.isfile(backup_file)
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def test_concurrent_backup_operations(self):
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"""Test that concurrent backup operations don't interfere."""
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# This tests thread safety (basic test)
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backup1 = self.auto_save.create_backup("concurrent1")
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backup2 = self.auto_save.create_backup("concurrent2")
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assert backup1 != backup2
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assert os.path.exists(backup1)
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assert os.path.exists(backup2)
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def test_error_handling_during_backup(self):
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"""Test error handling during backup operations."""
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# Test with permission error
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with patch('shutil.copy2', side_effect=PermissionError("Permission denied")):
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backup_file = self.auto_save.create_backup("permission_test")
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assert backup_file is None
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self.mock_error_callback.assert_called()
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def test_auto_save_integration(self):
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"""Test integration of auto-save functionality."""
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# Start auto-save
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self.auto_save.start()
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# Wait a short time for at least one auto-save cycle
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import time
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time.sleep(0.2) # Wait longer than interval
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# Should have created startup backup
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backup_files = self.auto_save.get_backup_files()
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assert len(backup_files) > 0
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# Stop auto-save
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self.auto_save.stop()
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def test_status_callback_integration(self):
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"""Test status callback integration."""
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self.auto_save.create_backup("status_test")
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# Status callback should have been called
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self.mock_status_callback.assert_called()
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call_args = self.mock_status_callback.call_args[0]
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assert "backup" in call_args[0].lower()
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def test_backup_size_validation(self):
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"""Test that backups have reasonable size."""
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backup_file = self.auto_save.create_backup("size_test")
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original_size = os.path.getsize(self.test_data_file)
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backup_size = os.path.getsize(backup_file)
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# Backup should be similar size to original (allowing for minor differences)
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assert abs(backup_size - original_size) < 100 # Within 100 bytes
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def test_backup_file_sorting(self):
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"""Test that backup files are sorted by creation time."""
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# Create backups with small delays
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import time
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backup1 = self.auto_save.create_backup("first")
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time.sleep(0.01)
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backup2 = self.auto_save.create_backup("second")
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time.sleep(0.01)
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backup3 = self.auto_save.create_backup("third")
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backup_files = self.auto_save.get_backup_files()
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# Files should be sorted with newest first
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assert len(backup_files) >= 3
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# Check that the files are in the list (order might vary based on filesystem)
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backup_names = [os.path.basename(f) for f in backup_files]
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assert any("first" in name for name in backup_names)
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assert any("second" in name for name in backup_names)
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assert any("third" in name for name in backup_names)
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