test(backend): enhance Drive file filtering and add unit tests for _drive_list_files

surfsense_backend/tests/unit/e2e_fakes/test_drive_list_files.py

@@ -0,0 +1,38 @@
+from tests.e2e.fakes.composio_module import _drive_list_files
+
+
+def _ids(result: dict) -> set[str]:
+    return {item["id"] for item in result["data"]["files"]}
+
+
+def test_drive_list_files_filters_shortcuts_and_trashed_items():
+    result = _drive_list_files(
+        {
+            "q": (
+                "'root' in parents and trashed = false and "
+                "mimeType != 'application/vnd.google-apps.shortcut'"
+            )
+        }
+    )
+
+    ids = _ids(result)
+
+    assert "fake-file-canary" in ids
+    assert "fake-shortcut-canary" not in ids
+    assert "fake-file-trashed" not in ids
+
+
+def test_drive_list_files_filters_to_exact_mime_type():
+    result = _drive_list_files(
+        {"q": "'root' in parents and trashed = false and mimeType = 'text/plain'"}
+    )
+
+    assert _ids(result) == {"fake-file-canary"}
+
+
+def test_drive_list_files_uses_requested_parent_folder():
+    result = _drive_list_files(
+        {"q": "'fake-folder-projects' in parents and trashed = false"}
+    )
+
+    assert _ids(result) == {"fake-file-roadmap"}