Add more test cases

Author: Joakim Nordling

openapi_to_fastapi/tests/test_router.py

@@ -442,6 +442,42 @@ def weather_metric(request):
             422,
             id="datetime-with-space",
         ),
+        pytest.param(
+            {"datetime1": "2025-09-10T12:34:56+10:00"},
+            200,
+            200,
+            id="datetime-with-plus",
+        ),
+        pytest.param(
+            {"datetime1": "2025-09-10T12:34:56-10:00"},
+            200,
+            200,
+            id="datetime-with-minus",
+        ),
+        pytest.param(
+            {"datetime1": "2025-09-10T12:34:56Z"},
+            200,
+            200,
+            id="datetime-with-z",
+        ),
+        pytest.param(
+            {"datetime1": "2025-09-10T12:34:56.789+10:00"},
+            200,
+            200,
+            id="datetime-with-plus-secfrac",
+        ),
+        pytest.param(
+            {"datetime1": "2025-09-10T12:34:56.789-10:00"},
+            200,
+            200,
+            id="datetime-with-minus-secfrac",
+        ),
+        pytest.param(
+            {"datetime1": "2025-09-10T12:34:56.789Z"},
+            200,
+            200,
+            id="datetime-with-z-secfrac",
+        ),
         pytest.param(
             {"listDatetime": [1757451600]},
             200,