Normalize ISO8601 datetimes in mock server request body matching.

Treat Z and +00:00 as equivalent when comparing serialized SDK request
bodies to OAS examples, fixing alert suppression window integration tests.

Co-authored-by: Cursor <cursoragent@cursor.com>

thousandeyes-sdk-core/test/sdk_test_support/mock_server.py

@@ -19,6 +19,7 @@ from __future__ import annotations
 import json
 import re
 import threading
+from datetime import datetime
 from http.server import BaseHTTPRequestHandler, ThreadingHTTPServer
 from typing import Any, Dict, Mapping, Optional
 from urllib.parse import urlparse
@@ -30,12 +31,21 @@ ERROR_STATUS_HEADER = "X-TE-Error-Status"
 AUTHORIZATION_HEADER = "Authorization"
 
 
+def _normalize_scalar(value: Any) -> Any:
+    if isinstance(value, str) and "T" in value:
+        try:
+            return datetime.fromisoformat(value.replace("Z", "+00:00")).isoformat().replace("+00:00", "Z")
+        except ValueError:
+            return value
+    return value
+
+
 def _normalize_json(value: Any) -> Any:
     if isinstance(value, dict):
         return {key: _normalize_json(value[key]) for key in sorted(value.keys())}
     if isinstance(value, list):
         return [_normalize_json(item) for item in value]
-    return value
+    return _normalize_scalar(value)
 
 
 def _json_body_matches(expected: Any, actual: Any) -> bool:

thousandeyes-sdk-core/test/test_mock_server.py

@@ -185,3 +185,32 @@ def test_mock_server_rejects_path_missing_path_variable(manifest):
         )
         assert status == 400
         assert json.loads(body.decode("utf-8"))["detail"] == "Path does not match operation expectation"
+
+
+def test_mock_server_accepts_equivalent_iso8601_datetime_formats(manifest):
+    datetime_manifest = {
+        **manifest,
+        "createAlertRule": OperationExpectation(
+            operation_id="createAlertRule",
+            method="POST",
+            path="/alerts/rules",
+            request_body_example={
+                "ruleName": "Example",
+                "startDate": "2017-07-01T05:00:00Z",
+            },
+            success_status=201,
+            success_body={"ruleId": "1"},
+        ),
+    }
+    with MockApiServer(datetime_manifest) as server:
+        status, body = _request(
+            server,
+            method="POST",
+            path="/alerts/rules",
+            body={
+                "ruleName": "Example",
+                "startDate": "2017-07-01T05:00:00+00:00",
+            },
+        )
+        assert status == 201
+        assert json.loads(body.decode("utf-8")) == {"ruleId": "1"}