feat: add interhub bootstrap helper

tests/test_interhub_gate_probe.py

@@ -0,0 +1,41 @@
+from __future__ import annotations
+
+import unittest
+
+from ops_hub.interhub_gate_probe import (
+    REQUIRED_OPENAPI_PATHS,
+    api_url,
+    evaluate_openapi_paths,
+    normalize_base_url,
+)
+
+
+class InterHubGateProbeTests(unittest.TestCase):
+    def test_normalize_base_url(self) -> None:
+        self.assertEqual(normalize_base_url("https://hub.example"), "https://hub.example/")
+        self.assertEqual(normalize_base_url("https://hub.example/"), "https://hub.example/")
+
+    def test_api_url_joins_versioned_paths(self) -> None:
+        self.assertEqual(
+            api_url("https://hub.example", "/api/v2/hubs"),
+            "https://hub.example/api/v2/hubs",
+        )
+
+    def test_evaluate_openapi_paths_detects_all_required_paths(self) -> None:
+        openapi = {"paths": {path: {} for path in REQUIRED_OPENAPI_PATHS}}
+        present, missing = evaluate_openapi_paths(openapi)
+        self.assertEqual(present, list(REQUIRED_OPENAPI_PATHS))
+        self.assertEqual(missing, [])
+
+    def test_evaluate_openapi_paths_reports_missing_paths(self) -> None:
+        openapi = {"paths": {"/hubs": {}}}
+        present, missing = evaluate_openapi_paths(openapi)
+        self.assertEqual(present, ["/hubs"])
+        self.assertEqual(
+            missing,
+            ["/hub-capability-manifests", "/api-consumers", "/policy-scopes"],
+        )
+
+
+if __name__ == "__main__":
+    unittest.main()