refactoring the mixin system

tests/abstract/test_document_mixins.py

@@ -0,0 +1,58 @@
+"""
+Simplified unit tests for abstract document elements using test mixins.
+
+This demonstrates how test mixins can eliminate duplication and simplify tests.
+"""
+
+import unittest
+from pyWebLayout.abstract.document import Document, Chapter
+from tests.mixins.font_registry_tests import FontRegistryTestMixin, FontRegistryParentDelegationTestMixin
+from tests.mixins.metadata_tests import MetadataContainerTestMixin
+
+
+class TestDocumentFontRegistry(FontRegistryTestMixin, unittest.TestCase):
+    """Test FontRegistry behavior for Document - simplified with mixin."""
+
+    def create_test_object(self):
+        """Create a Document instance for testing."""
+        return Document("Test Document", "en-US")
+
+
+class TestDocumentMetadata(MetadataContainerTestMixin, unittest.TestCase):
+    """Test MetadataContainer behavior for Document - simplified with mixin."""
+
+    def create_test_object(self):
+        """Create a Document instance for testing."""
+        return Document("Test Document", "en-US")
+
+
+class TestChapterFontRegistry(FontRegistryTestMixin, unittest.TestCase):
+    """Test FontRegistry behavior for Chapter - simplified with mixin."""
+
+    def create_test_object(self):
+        """Create a Chapter instance for testing."""
+        return Chapter("Test Chapter", level=1)
+
+
+class TestChapterFontRegistryParentDelegation(FontRegistryParentDelegationTestMixin, unittest.TestCase):
+    """Test FontRegistry parent delegation for Chapter - simplified with mixin."""
+
+    def create_parent(self):
+        """Create a Document as parent."""
+        return Document("Parent Document", "en-US")
+
+    def create_child(self, parent):
+        """Create a Chapter with parent reference."""
+        return Chapter("Child Chapter", level=1, parent=parent)
+
+
+class TestChapterMetadata(MetadataContainerTestMixin, unittest.TestCase):
+    """Test MetadataContainer behavior for Chapter - simplified with mixin."""
+
+    def create_test_object(self):
+        """Create a Chapter instance for testing."""
+        return Chapter("Test Chapter", level=1)
+
+
+if __name__ == '__main__':
+    unittest.main()