Add generic ENLYZE power meter pipeline

tests/test_enlyze_exploration.py

@@ -9,6 +9,7 @@ from production_analytics.enlyze.exploration import (
     AuthenticationError,
     ExplorationClient,
     ExplorationSettings,
+    HttpResponseError,
     NonJsonResponseError,
     load_secret_file,
 )
@@ -78,6 +79,28 @@ class ExplorationClientTests(unittest.TestCase):
         with self.assertRaisesRegex(AuthenticationError, "HTTP 401"):
             ExplorationClient(self.settings).get("/observed/path")
 
+    @patch("production_analytics.enlyze.exploration.urlopen")
+    def test_http_error_keeps_sanitized_bounded_body(self, urlopen_mock: object) -> None:
+        urlopen_mock.side_effect = HTTPError(
+            "https://example.invalid", 422, "Unprocessable", {},
+            io.BytesIO(b'{"message":"bad variable","token":"must not echo"}'),
+        )  # type: ignore[attr-defined]
+
+        with self.assertRaises(HttpResponseError) as caught:
+            ExplorationClient(self.settings).get("/observed/path")
+        self.assertEqual(caught.exception.response_body["message"], "bad variable")
+        self.assertEqual(caught.exception.response_body["token"], "<redacted-secret>")
+
+    @patch("production_analytics.enlyze.exploration.urlopen")
+    def test_get_all_pages_follows_cursor(self, urlopen_mock: object) -> None:
+        urlopen_mock.side_effect = [
+            _Response(b'{"data":[1],"metadata":{"next_cursor":"next"}}'),
+            _Response(b'{"data":[2],"metadata":{"next_cursor":null}}'),
+        ]
+
+        pages = ExplorationClient(self.settings).get_all_pages("/v2/variables", {"machine": "m"})
+        self.assertEqual([page.body["data"] for page in pages], [[1], [2]])
+
 
 class SanitizationTests(unittest.TestCase):
     def test_sanitization_preserves_shape_and_redacts_sensitive_values(self) -> None: