Initial commit

tests/python/test_example_node_pattern.py

@@ -0,0 +1,28 @@
+from importlib.util import module_from_spec, spec_from_file_location
+from pathlib import Path
+
+
+FIXTURE_PATH = Path(__file__).resolve().parent / "fixtures" / "example_node.py"
+
+
+def load_fixture_module():
+    spec = spec_from_file_location("example_node_fixture", FIXTURE_PATH)
+    assert spec is not None
+    assert spec.loader is not None
+
+    module = module_from_spec(spec)
+    spec.loader.exec_module(module)
+    return module
+
+
+def test_example_node_shows_how_to_unit_test_pure_python_logic():
+    module = load_fixture_module()
+    node = module.ExampleNormalizeTextNode()
+
+    assert module.NODE_CLASS_MAPPINGS == {
+        "ExampleNormalizeText": module.ExampleNormalizeTextNode
+    }
+    assert module.NODE_DISPLAY_NAME_MAPPINGS == {
+        "ExampleNormalizeText": "Example Normalize Text"
+    }
+    assert node.normalize_text("  alpha \n\n beta  \n gamma ") == ("alpha beta gamma",)