brain backup 2026-09-14

projects/ckmath-interactive-pilot/tests/test_server_catalog.py

@@ -0,0 +1,31 @@
+import importlib.util
+import unittest
+from pathlib import Path
+
+MODULE_PATH = Path(__file__).parents[1] / 'src' / 'server_catalog.py'
+spec = importlib.util.spec_from_file_location('server_catalog', MODULE_PATH)
+server_catalog = importlib.util.module_from_spec(spec)
+spec.loader.exec_module(server_catalog)
+
+
+class ServerCatalogTest(unittest.TestCase):
+    def setUp(self):
+        self.catalog = {
+            'units': [{
+                'filename': 'CKMath_G3U1.zip',
+                'materials': [{'id': 'guide-1', 'internal_path': 'unit/guide.pdf', 'filename': 'guide.pdf'}],
+            }]
+        }
+
+    def test_known_material_id_resolves_to_its_declared_zip_member(self):
+        index = server_catalog.material_index(self.catalog)
+        self.assertEqual(server_catalog.lookup_material(index, 'guide-1'), ('CKMath_G3U1.zip', 'unit/guide.pdf'))
+
+    def test_unknown_or_path_like_id_is_not_resolved(self):
+        index = server_catalog.material_index(self.catalog)
+        self.assertIsNone(server_catalog.lookup_material(index, '../../etc/passwd'))
+        self.assertIsNone(server_catalog.lookup_material(index, 'not-in-the-catalog'))
+
+
+if __name__ == '__main__':
+    unittest.main()