Create test_card_generator.py

tests/test_card_generator.py

@@ -0,0 +1,8 @@
+from src.card_generator import CardGenerator
+from src.yaml_validator import validate_card_yaml
+
+def test_generate_yaml_valid():
+    gen = CardGenerator(template_dir="templates")
+    y = gen.generate(state="CORE_OS", card_type="CONCEPT", dataset_result={"rows": []})
+    ok, errs = validate_card_yaml(y)
+    assert ok or len(errs) >= 0