fix: isolate test artifacts from production asset registry

- Create tests/test_utils.py with utilities for consistent test workspace management
- Fix tests to use project tmp/ directory instead of system /tmp
- Ensure all AssetManager instances in tests use isolated registries
- Prevent contamination of production asset_registry.json during testing

Key changes:
- test_issue_142_asset_manager.py: Fix AssetManager() calls to use test workspaces
- test_issue_144_batch_import.py: Use create_test_workspace() and get_test_asset_config()
- test_issue_145_production_error_handler.py: Use test_workspace() context manager
- tests/test_utils.py: New utilities for isolated test environments

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

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

tests/test_issue_142_asset_manager.py

@@ -28,26 +28,7 @@ from markitect.assets.deduplicator import AssetDeduplicator
 from markitect.assets.packager import MarkdownPackager
 from markitect.assets.exceptions import AssetError, AssetManagerError
 from markitect.config_manager import ConfigurationManager
-
-
-@contextmanager
-def test_workspace():
-    """Create a test workspace in the project tmp directory."""
-    project_root = Path(__file__).parent.parent
-    temp_dir = project_root / "tmp" / "test_artifacts" / f"test_{int(time.time())}"
-    temp_dir.mkdir(parents=True, exist_ok=True)
-    try:
-        yield temp_dir
-    finally:
-        shutil.rmtree(temp_dir, ignore_errors=True)
-
-
-def create_test_workspace():
-    """Create a test workspace in the project tmp directory."""
-    project_root = Path(__file__).parent.parent
-    temp_dir = project_root / "tmp" / "test_artifacts" / f"test_{int(time.time())}"
-    temp_dir.mkdir(parents=True, exist_ok=True)
-    return temp_dir
+from tests.test_utils import test_workspace as test_workspace_util, create_test_workspace, get_test_asset_config
 
 
 class TestAssetManagerInitialization:
@@ -78,16 +59,31 @@ class TestAssetManagerInitialization:
 
     def test_manager_initialization_with_defaults(self):
         """Test AssetManager initialization with default configuration."""
-        manager = AssetManager()
+        temp_dir = create_test_workspace()
 
-        # Should use reasonable defaults
-        assert manager.storage_path.name == "assets"
-        assert manager.registry_path.name == "asset_registry.json"
-        assert manager.enable_deduplication is True
+        try:
+            # Change to temp directory to test defaults without contaminating production
+            import os
+            original_cwd = os.getcwd()
+            os.chdir(temp_dir)
+
+            manager = AssetManager()
+
+            # Should use reasonable defaults
+            assert manager.storage_path.name == "assets"
+            assert manager.registry_path.name == "asset_registry.json"
+            assert manager.enable_deduplication is True
+
+            # Verify it's using the test directory, not production
+            assert str(manager.registry_path).startswith(str(temp_dir))
+
+        finally:
+            os.chdir(original_cwd)
+            shutil.rmtree(temp_dir, ignore_errors=True)
 
     def test_manager_creates_required_components(self):
         """Test that AssetManager creates required component instances."""
-        with test_workspace() as temp_dir:
+        with test_workspace_util() as temp_dir:
             config = {
                 "assets": {
                     "storage_path": str(temp_dir / "assets"),
@@ -103,12 +99,13 @@ class TestAssetManagerInitialization:
 
     def test_manager_integration_with_config_manager(self):
         """Test AssetManager integration with ConfigurationManager."""
-        with test_workspace() as temp_dir:
+        with test_workspace_util() as temp_dir:
             # Create config file
             config_file = Path(temp_dir) / ".markitect.json"
             config_data = {
                 "assets": {
                     "storage_path": str(temp_dir / "custom_assets"),
+                    "registry_path": str(temp_dir / "test_registry.json"),
                     "enable_deduplication": False
                 }
             }
@@ -127,7 +124,7 @@ class TestAssetManagerHighLevelOperations:
 
     def test_add_asset_with_deduplication(self):
         """Test adding asset with automatic deduplication."""
-        with test_workspace() as temp_dir:
+        with test_workspace_util() as temp_dir:
             config = {
                 "assets": {
                     "storage_path": str(temp_dir / "assets"),
@@ -151,7 +148,7 @@ class TestAssetManagerHighLevelOperations:
 
     def test_add_duplicate_asset_detected(self):
         """Test that duplicate assets are properly detected and handled."""
-        with test_workspace() as temp_dir:
+        with test_workspace_util() as temp_dir:
             config = {
                 "assets": {
                     "storage_path": str(temp_dir / "assets"),
@@ -180,7 +177,7 @@ class TestAssetManagerHighLevelOperations:
 
     def test_list_assets_with_metadata(self):
         """Test listing all assets with their metadata."""
-        with test_workspace() as temp_dir:
+        with test_workspace_util() as temp_dir:
             config = {
                 "assets": {
                     "storage_path": str(temp_dir / "assets"),
@@ -210,7 +207,7 @@ class TestAssetManagerHighLevelOperations:
 
     def test_get_asset_info_by_hash(self):
         """Test retrieving detailed asset information by content hash."""
-        with test_workspace() as temp_dir:
+        with test_workspace_util() as temp_dir:
             config = {
                 "assets": {
                     "storage_path": str(temp_dir / "assets"),
@@ -237,7 +234,7 @@ class TestAssetManagerHighLevelOperations:
 
     def test_remove_asset_by_hash(self):
         """Test removing asset by content hash."""
-        with test_workspace() as temp_dir:
+        with test_workspace_util() as temp_dir:
             config = {
                 "assets": {
                     "storage_path": str(temp_dir / "assets"),
@@ -269,7 +266,7 @@ class TestAssetManagerPackaging:
 
     def test_create_document_package(self):
         """Test creating complete document package with assets."""
-        with test_workspace() as temp_dir:
+        with test_workspace_util() as temp_dir:
             config = {
                 "assets": {
                     "storage_path": str(temp_dir / "assets"),
@@ -312,7 +309,7 @@ This document has assets:
 
     def test_extract_document_package_to_workspace(self):
         """Test extracting package to workspace with proper asset linking."""
-        with test_workspace() as temp_dir:
+        with test_workspace_util() as temp_dir:
             config = {
                 "assets": {
                     "storage_path": str(temp_dir / "assets"),
@@ -344,7 +341,7 @@ This document has assets:
 
     def test_package_with_custom_options(self):
         """Test package creation with custom options and exclude patterns."""
-        with test_workspace() as temp_dir:
+        with test_workspace_util() as temp_dir:
             config = {
                 "assets": {
                     "storage_path": str(temp_dir / "assets"),
@@ -388,7 +385,7 @@ class TestAssetManagerErrorHandling:
 
     def test_add_nonexistent_asset_raises_error(self):
         """Test that adding non-existent asset raises appropriate error."""
-        with test_workspace() as temp_dir:
+        with test_workspace_util() as temp_dir:
             config = {
                 "assets": {
                     "storage_path": str(temp_dir / "assets"),
@@ -405,7 +402,7 @@ class TestAssetManagerErrorHandling:
 
     def test_get_info_for_nonexistent_asset_raises_error(self):
         """Test that getting info for non-existent asset raises error."""
-        with test_workspace() as temp_dir:
+        with test_workspace_util() as temp_dir:
             config = {
                 "assets": {
                     "storage_path": str(temp_dir / "assets"),
@@ -420,7 +417,7 @@ class TestAssetManagerErrorHandling:
 
     def test_manager_logs_operations(self):
         """Test that AssetManager logs important operations."""
-        with test_workspace() as temp_dir:
+        with test_workspace_util() as temp_dir:
             config = {
                 "assets": {
                     "storage_path": str(temp_dir / "assets"),
@@ -454,7 +451,7 @@ class TestAssetManagerErrorHandling:
     def test_configuration_validation_errors(self):
         """Test that invalid configuration raises appropriate errors."""
         # Invalid storage path (file instead of directory)
-        with test_workspace() as temp_dir:
+        with test_workspace_util() as temp_dir:
             invalid_file = Path(temp_dir) / "not_a_directory.txt"
             invalid_file.write_text("This is a file")
 
@@ -474,7 +471,7 @@ class TestAssetManagerWorkflows:
 
     def test_complete_document_workflow(self):
         """Test complete workflow: add assets, create package, extract elsewhere."""
-        with test_workspace() as temp_dir:
+        with test_workspace_util() as temp_dir:
             config = {
                 "assets": {
                     "storage_path": str(temp_dir / "assets"),
@@ -524,7 +521,7 @@ Assets:
 
     def test_asset_sharing_between_packages(self):
         """Test that assets can be shared between different packages."""
-        with test_workspace() as temp_dir:
+        with test_workspace_util() as temp_dir:
             config = {
                 "assets": {
                     "storage_path": str(temp_dir / "assets"),
@@ -573,7 +570,7 @@ Assets:
 
     def test_performance_requirements_met(self):
         """Test that operations complete within performance requirements (<100ms)."""
-        with test_workspace() as temp_dir:
+        with test_workspace_util() as temp_dir:
             config = {
                 "assets": {
                     "storage_path": str(temp_dir / "assets"),

tests/test_issue_144_batch_import.py

@@ -8,14 +8,13 @@ Issue #144: Phase 3 - Advanced Features and Performance
 """
 
 import pytest
-import tempfile
-import shutil
 from pathlib import Path
 from unittest.mock import Mock, patch, MagicMock
 import json
 
 from markitect.assets import AssetManager, AssetError
 from markitect.assets.batch_processor import BatchAssetProcessor, BatchImportResult, ConflictResolution, ProgressReporter
+from tests.test_utils import create_test_workspace, get_test_asset_config
 
 
 class TestBatchAssetImport:
@@ -23,9 +22,9 @@ class TestBatchAssetImport:
 
     def setup_method(self):
         """Set up test environment with temporary directories and mock assets."""
-        self.temp_dir = tempfile.mkdtemp()
-        self.source_dir = Path(self.temp_dir) / "source"
-        self.assets_dir = Path(self.temp_dir) / "assets"
+        self.temp_dir = create_test_workspace("batch_import")
+        self.source_dir = self.temp_dir / "source"
+        self.assets_dir = self.temp_dir / "assets"
 
         self.source_dir.mkdir()
         self.assets_dir.mkdir()
@@ -47,16 +46,14 @@ class TestBatchAssetImport:
         nested_dir.mkdir(parents=True)
         (nested_dir / "nested_image.png").write_bytes(b"nested content")
 
-        self.asset_manager = AssetManager(config={
-            'assets': {
-                'storage_path': str(self.assets_dir),
-                'registry_path': str(self.assets_dir / 'registry.json')
-            }
-        })
+        # Use test asset configuration to ensure isolated registry
+        config = get_test_asset_config(self.temp_dir)
+        self.asset_manager = AssetManager(config)
 
     def teardown_method(self):
         """Clean up temporary directories."""
-        shutil.rmtree(self.temp_dir)
+        import shutil
+        shutil.rmtree(self.temp_dir, ignore_errors=True)
 
     def test_batch_processor_initialization(self):
         """Test BatchAssetProcessor can be initialized with AssetManager."""

tests/test_issue_145_production_error_handler.py

@@ -7,8 +7,6 @@ for production environments.
 """
 
 import pytest
-import tempfile
-import shutil
 import os
 from pathlib import Path
 from unittest.mock import Mock, patch, MagicMock
@@ -21,6 +19,7 @@ from markitect.production.error_handler import (
     RegistryCorruptionError,
     ResourceExhaustionError
 )
+from tests.test_utils import test_workspace
 
 
 class TestProductionErrorHandler:
@@ -29,9 +28,8 @@ class TestProductionErrorHandler:
     @pytest.fixture
     def temp_workspace(self):
         """Create temporary workspace for testing."""
-        temp_dir = tempfile.mkdtemp()
-        yield Path(temp_dir)
-        shutil.rmtree(temp_dir, ignore_errors=True)
+        with test_workspace("error_handler") as temp_dir:
+            yield temp_dir
 
     @pytest.fixture
     def error_handler(self, temp_workspace):

tests/test_utils.py

@@ -0,0 +1,98 @@
+"""
+Test utilities for consistent test workspace and registry management.
+
+This module provides utilities to ensure all tests use project tmp/ directory
+and isolated test registries to prevent contamination of production assets.
+"""
+
+import time
+import shutil
+from contextlib import contextmanager
+from pathlib import Path
+from typing import Optional, Dict, Any
+
+from markitect.assets.constants import (
+    DEFAULT_TEST_ASSETS_DIR,
+    DEFAULT_TEST_REGISTRY_FILENAME
+)
+
+
+def get_project_root() -> Path:
+    """Get the project root directory."""
+    return Path(__file__).parent.parent
+
+
+def create_test_workspace(prefix: str = "test") -> Path:
+    """Create a test workspace in the project tmp directory.
+
+    Args:
+        prefix: Prefix for the test directory name
+
+    Returns:
+        Path to the created test workspace
+    """
+    project_root = get_project_root()
+    temp_dir = project_root / "tmp" / "test_artifacts" / f"{prefix}_{int(time.time() * 1000000)}"
+    temp_dir.mkdir(parents=True, exist_ok=True)
+    return temp_dir
+
+
+@contextmanager
+def test_workspace(prefix: str = "test"):
+    """Context manager for test workspace that auto-cleans up.
+
+    Args:
+        prefix: Prefix for the test directory name
+
+    Yields:
+        Path to the test workspace
+    """
+    temp_dir = create_test_workspace(prefix)
+    try:
+        yield temp_dir
+    finally:
+        shutil.rmtree(temp_dir, ignore_errors=True)
+
+
+def get_test_asset_config(workspace_dir: Path,
+                         registry_name: Optional[str] = None) -> Dict[str, Any]:
+    """Get asset configuration for testing that uses isolated test paths.
+
+    Args:
+        workspace_dir: The test workspace directory
+        registry_name: Optional custom registry filename
+
+    Returns:
+        Configuration dictionary for AssetManager
+    """
+    if registry_name is None:
+        registry_name = "test_registry.json"
+
+    return {
+        "assets": {
+            "storage_path": str(workspace_dir / "assets"),
+            "registry_path": str(workspace_dir / registry_name),
+            "database_path": str(workspace_dir / "test_assets.db"),
+            "enable_deduplication": True,
+            "default_conflict_resolution": "backup"
+        }
+    }
+
+
+def ensure_test_tmp_structure():
+    """Ensure the test tmp directory structure exists."""
+    project_root = get_project_root()
+    test_artifacts_dir = project_root / "tmp" / "test_artifacts"
+    test_artifacts_dir.mkdir(parents=True, exist_ok=True)
+    return test_artifacts_dir
+
+
+# Backward compatibility functions for existing tests
+def temp_workspace():
+    """Backward compatibility alias for test_workspace()."""
+    return test_workspace()
+
+
+def create_temp_workspace():
+    """Backward compatibility alias for create_test_workspace()."""
+    return create_test_workspace()