ver1 - Step 4 implemented - Revision functionality added

tests/test_db.py

@@ -18,10 +18,10 @@ class TestSchemaBootstrap:
     """Verify create_all produces the expected table set."""
 
     def test_create_all_creates_expected_tables(self):
-        """After create_all(), document, job, and transcript tables exist."""
+        """After create_all(), core V1 tables exist."""
         engine = _in_memory_engine()
         # Ensure models are imported so metadata is populated
-        from transcription.models import Document, Job, Transcript  # noqa: F401
+        from transcription.models import Document, Job, Transcript, TranscriptRevision  # noqa: F401
 
         import transcription.db as db_module
 
@@ -32,6 +32,19 @@ class TestSchemaBootstrap:
         assert "document" in table_names
         assert "job" in table_names
         assert "transcript" in table_names
+        assert "transcriptrevision" in table_names
+
+
+    def test_validate_schema_compatibility_returns_no_issues_for_fresh_schema(self):
+        """validate_schema_compatibility reports no issues on fresh schema."""
+        engine = _in_memory_engine()
+
+        import transcription.db as db_module
+
+        db_module.create_all(engine=engine)
+        issues = db_module.validate_schema_compatibility(engine=engine)
+
+        assert issues == []
 
 
 class TestSessionFactory: