#!/usr/bin/env python3
"""
Tests for Band Structure Migration System
This module tests the comprehensive migration functionality for band folder organization patterns,
including dry-run mode, backup/rollback functionality, and progress tracking.
"""
import pytest
import tempfile
import shutil
from pathlib import Path
from unittest.mock import Mock, patch
from src.models.migration import (
BandStructureMigrator,
MigrationType,
MigrationStatus,
MigrationResult,
AlbumMigrationOperation,
MigrationBackup
)
from src.models.band import AlbumType
from src.models.band_structure import StructureType
class TestBandStructureMigrator:
"""Test the BandStructureMigrator class."""
def setup_method(self):
"""Set up test environment."""
self.migrator = BandStructureMigrator()
self.temp_dir = Path(tempfile.mkdtemp())
def teardown_method(self):
"""Clean up test environment."""
if self.temp_dir.exists():
shutil.rmtree(self.temp_dir)
def _create_test_band_structure(self, structure_type: str = "default"):
"""Create a test band folder structure."""
band_path = self.temp_dir / "Test Band"
band_path.mkdir(parents=True, exist_ok=True)
if structure_type == "default":
# Default structure: Band/YYYY - Album Name (Edition?)
(band_path / "2010 - First Album").mkdir()
(band_path / "2012 - Second Album (Deluxe Edition)").mkdir()
(band_path / "2015 - Live Concert (Live)").mkdir()
elif structure_type == "legacy":
# Legacy structure: Band/Album Name
(band_path / "First Album").mkdir()
(band_path / "Second Album").mkdir()
(band_path / "Live Concert").mkdir()
elif structure_type == "enhanced":
# Enhanced structure: Band/Type/YYYY - Album Name (Edition?)
album_dir = band_path / "Album"
album_dir.mkdir()
(album_dir / "2010 - First Album").mkdir()
(album_dir / "2012 - Second Album (Deluxe Edition)").mkdir()
live_dir = band_path / "Live"
live_dir.mkdir()
(live_dir / "2015 - Live Concert (Live)").mkdir()
# Add some test files to albums
for album_folder in band_path.rglob("*"):
if album_folder.is_dir() and album_folder.parent != self.temp_dir:
(album_folder / "track1.mp3").touch()
(album_folder / "track2.mp3").touch()
return band_path
def test_migrator_initialization(self):
"""Test migrator initialization."""
assert self.migrator is not None
assert self.migrator.parser is not None
assert self.migrator.detector is not None
assert self.migrator.progress_callback is None
def test_set_progress_callback(self):
"""Test setting progress callback."""
callback = Mock()
self.migrator.set_progress_callback(callback)
assert self.migrator.progress_callback == callback
def test_resolve_folder_conflicts_no_conflict(self):
"""Test folder conflict resolution when no conflict exists."""
band_path = self._create_test_band_structure()
target_path = band_path / "New Album"
resolved_path = self.migrator._resolve_folder_conflicts(target_path)
assert resolved_path == target_path
def test_resolve_folder_conflicts_with_conflict(self):
"""Test folder conflict resolution when conflict exists."""
band_path = self._create_test_band_structure()
existing_album = band_path / "2010 - First Album"
resolved_path = self.migrator._resolve_folder_conflicts(existing_album)
assert resolved_path == band_path / "2010 - First Album (Conflict 1)"
def test_resolve_folder_conflicts_with_edition(self):
"""Test folder conflict resolution with edition information."""
band_path = self._create_test_band_structure()
existing_album = band_path / "2012 - Second Album (Deluxe Edition)"
resolved_path = self.migrator._resolve_folder_conflicts(existing_album)
expected = band_path / "2012 - Second Album (Conflict 1) (Deluxe Edition)"
assert resolved_path == expected
def test_safe_move_with_permissions(self):
"""Test safe move operation with permission preservation."""
band_path = self._create_test_band_structure()
source = band_path / "2010 - First Album"
target = band_path / "Album" / "2010 - First Album"
# Create target directory
target.parent.mkdir(parents=True, exist_ok=True)
# Perform move
self.migrator._safe_move_with_permissions(source, target)
# Verify move
assert not source.exists()
assert target.exists()
assert (target / "track1.mp3").exists()
assert (target / "track2.mp3").exists()
def test_safe_copy_with_permissions(self):
"""Test safe copy operation with permission preservation."""
band_path = self._create_test_band_structure()
source = band_path / "2010 - First Album"
target = band_path / "Album" / "2010 - First Album Copy"
# Create target directory
target.parent.mkdir(parents=True, exist_ok=True)
# Perform copy
self.migrator._safe_copy_with_permissions(source, target)
# Verify copy
assert source.exists()
assert target.exists()
assert (target / "track1.mp3").exists()
assert (target / "track2.mp3").exists()
def test_format_album_name_for_enhanced(self):
"""Test album name formatting for enhanced structure."""
parsed = {
'year': '2010',
'album_name': 'Test Album',
'edition': 'Deluxe Edition'
}
result = self.migrator._format_album_name_for_enhanced(parsed)
assert result == "2010 - Test Album (Deluxe Edition)"
def test_format_album_name_for_enhanced_no_edition(self):
"""Test album name formatting for enhanced structure without edition."""
parsed = {
'year': '2010',
'album_name': 'Test Album',
'edition': ''
}
result = self.migrator._format_album_name_for_enhanced(parsed)
assert result == "2010 - Test Album"
def test_format_album_name_for_default(self):
"""Test album name formatting for default structure."""
parsed = {
'year': '2010',
'album_name': 'Test Album',
'edition': 'Deluxe Edition'
}
result = self.migrator._format_album_name_for_default(parsed)
assert result == "2010 - Test Album (Deluxe Edition)"
def test_format_album_name_for_default_no_year(self):
"""Test album name formatting for default structure without year."""
from datetime import datetime
current_year = str(datetime.now().year)
parsed = {
'year': '',
'album_name': 'Test Album',
'edition': ''
}
result = self.migrator._format_album_name_for_default(parsed)
assert result == f"{current_year} - Test Album"
def test_generate_target_path_default_to_enhanced(self):
"""Test target path generation for default to enhanced migration."""
band_path = self._create_test_band_structure()
album_folder = band_path / "2010 - First Album"
parsed = {
'year': '2010',
'album_name': 'First Album',
'edition': ''
}
target_path = self.migrator._generate_target_path(
band_path, album_folder, MigrationType.DEFAULT_TO_ENHANCED,
AlbumType.ALBUM, parsed
)
expected = band_path / "Album" / "2010 - First Album"
assert target_path == expected
def test_generate_target_path_legacy_to_default(self):
"""Test target path generation for legacy to default migration."""
band_path = self._create_test_band_structure("legacy")
album_folder = band_path / "First Album"
parsed = {
'year': '',
'album_name': 'First Album',
'edition': ''
}
target_path = self.migrator._generate_target_path(
band_path, album_folder, MigrationType.LEGACY_TO_DEFAULT,
AlbumType.ALBUM, parsed
)
# Should add current year
from datetime import datetime
current_year = str(datetime.now().year)
expected = band_path / f"{current_year} - First Album"
assert target_path == expected
@patch('src.models.migration.BandStructureMigrator._get_band_info')
def test_migrate_band_structure_dry_run(self, mock_get_band_info):
"""Test migration in dry-run mode."""
band_path = self._create_test_band_structure()
# Mock band info
mock_get_band_info.return_value = {
'band_name': 'Test Band',
'folder_path': str(band_path)
}
# Mock structure detection
with patch.object(self.migrator.detector, 'detect_band_structure') as mock_detect:
mock_structure = Mock()
mock_structure.structure_type = StructureType.DEFAULT
mock_detect.return_value = mock_structure
# Perform dry run migration
result = self.migrator.migrate_band_structure(
band_name="Test Band",
migration_type=MigrationType.DEFAULT_TO_ENHANCED,
dry_run=True
)
# Verify dry run results
assert result.status == MigrationStatus.COMPLETED
assert result.dry_run is True
assert len(result.operations) > 0
assert result.backup_info is None
# Verify no actual changes were made
assert (band_path / "2010 - First Album").exists()
assert not (band_path / "Album").exists()
def test_create_backup(self):
"""Test backup creation functionality."""
band_path = self._create_test_band_structure()
# Mock structure
mock_structure = Mock()
mock_structure.structure_type = StructureType.DEFAULT
# Create some test operations
operations = [
AlbumMigrationOperation(
album_name="First Album",
source_path=str(band_path / "2010 - First Album"),
target_path=str(band_path / "Album" / "2010 - First Album"),
album_type=AlbumType.ALBUM,
operation_type="move"
)
]
# Create metadata file
metadata_file = band_path / ".band_metadata.json"
metadata_file.write_text('{"band_name": "Test Band"}')
# Create backup
backup = self.migrator._create_backup(band_path, mock_structure, operations)
# Verify backup
assert backup is not None
assert backup.band_name == "Test Band"
assert backup.original_structure_type == StructureType.DEFAULT
assert len(backup.operations) == 1
backup_path = Path(backup.backup_folder_path)
assert backup_path.exists()
assert (backup_path / "Test Band").exists()
assert backup.metadata_backup_path is not None
class TestMigrationIntegration:
"""Integration tests for migration functionality."""
def setup_method(self):
"""Set up test environment."""
self.temp_dir = Path(tempfile.mkdtemp())
def teardown_method(self):
"""Clean up test environment."""
if self.temp_dir.exists():
shutil.rmtree(self.temp_dir)
def test_migration_operation_execution(self):
"""Test execution of migration operation."""
migrator = BandStructureMigrator()
# Create test structure
band_path = self.temp_dir / "Test Band"
band_path.mkdir(parents=True)
source_album = band_path / "2010 - Test Album"
source_album.mkdir()
(source_album / "track1.mp3").touch()
# Create operation
operation = AlbumMigrationOperation(
album_name="Test Album",
source_path=str(source_album),
target_path=str(band_path / "Album" / "2010 - Test Album"),
album_type=AlbumType.ALBUM,
operation_type="move"
)
# Execute operation
migrator._execute_migration_operation(operation)
# Verify operation
assert not source_album.exists()
target_path = Path(operation.target_path)
assert target_path.exists()
assert (target_path / "track1.mp3").exists()
class TestMigrationEdgeCases:
"""Test edge cases for migration functionality."""
def setup_method(self):
"""Set up test environment."""
self.migrator = BandStructureMigrator()
self.temp_dir = Path(tempfile.mkdtemp())
def teardown_method(self):
"""Clean up test environment."""
if self.temp_dir.exists():
shutil.rmtree(self.temp_dir)
def test_migrate_same_source_and_target(self):
"""Test migration when source and target paths are the same."""
band_path = self.temp_dir / "Test Band"
band_path.mkdir(parents=True)
album_path = band_path / "2010 - Test Album"
album_path.mkdir()
operation = AlbumMigrationOperation(
album_name="Test Album",
source_path=str(album_path),
target_path=str(album_path), # Same path
album_type=AlbumType.ALBUM,
operation_type="move"
)
# Should not raise an error and should do nothing
self.migrator._execute_migration_operation(operation)
assert album_path.exists()
def test_preserve_folder_attributes_error_handling(self):
"""Test error handling in folder attribute preservation."""
# Create a test folder
test_folder = self.temp_dir / "test_folder"
test_folder.mkdir()
# Mock stat object with proper numeric attributes for os.utime
mock_stat = Mock()
mock_stat.st_atime = 1234567890.0 # Mock timestamp as float
mock_stat.st_mtime = 1234567890.0 # Mock timestamp as float
# Test case 1: Missing st_mode attribute
if hasattr(mock_stat, 'st_mode'):
delattr(mock_stat, 'st_mode')
# Should not raise an error
self.migrator._preserve_folder_attributes(test_folder, mock_stat)
# Test case 2: Invalid st_mode value
mock_stat.st_mode = "invalid" # Non-integer value
# Should not raise an error
self.migrator._preserve_folder_attributes(test_folder, mock_stat)
# Folder should still exist
assert test_folder.exists()
def test_conflict_resolution_max_conflicts(self):
"""Test conflict resolution with maximum conflicts."""
band_path = self.temp_dir / "Test Band"
band_path.mkdir(parents=True)
# Create a folder
base_folder = band_path / "Test Album"
base_folder.mkdir()
# Mock the exists method to always return True
with patch.object(Path, 'exists', return_value=True):
with pytest.raises(ValueError, match="Too many conflicts"):
self.migrator._resolve_folder_conflicts(base_folder)
