fix(testing): correct async mocker for httpx 0.28 body matching

Address PR review on the httpx 0.28 / pytest-httpx 0.35 bump.

- match_content now mirrors httpx 0.28's request-body serialization
  exactly by adding ensure_ascii=False and allow_nan=False. Without
  them a non-ASCII match_body serialized to \uXXXX escapes while httpx
  sends raw UTF-8, so the mock silently failed to match.
- Pin an upper bound pytest-httpx >=0.35,<1. It is a runtime dependency
  (connect.client.testing ships the mocker and a pytest11 plugin) that
  relies on private pytest_httpx API (_HTTPXMockOptions, _assert_options),
  so an unbounded minor bump could break downstream test suites.
- Add test_create_match_non_ascii_body and test_unrequested_mock_fails
  to cover the non-ASCII matching and the reset() assertion path, which
  previously had no coverage.

Author: pcaro

connect/client/testing/fluent.py

@@ -235,11 +235,14 @@ def mock(
 
         if match_body:
             if isinstance(match_body, (dict, list, tuple)):
-                # httpx>=0.28 serializes JSON request bodies compactly, so match
-                # the same separators or match_content won't compare equal.
+                # Mirror httpx>=0.28's request-body serialization exactly, or
+                # match_content won't compare equal (compact separators, raw
+                # UTF-8 rather than \uXXXX escapes, and no NaN/Infinity).
                 kwargs['match_content'] = json.dumps(
                     match_body,
                     separators=(',', ':'),
+                    ensure_ascii=False,
+                    allow_nan=False,
                 ).encode('utf-8')
             else:
                 kwargs['match_content'] = match_body

poetry.lock

@@ -42,7 +42,7 @@ inflect = ">=7"
 httpx = ">=0.28"
 asgiref = "^3.3.4"
 responses = ">=0.14.0,<1"
-pytest-httpx = ">=0.35"
+pytest-httpx = ">=0.35,<1"
 
 [tool.poetry.group.test.dependencies]
 black = "23.*"

pyproject.toml

@@ -49,6 +49,21 @@ async def test_create():
         assert await client.products['product_id'].items.create(payload={}) == {'test': 'data'}
 
 
+@pytest.mark.asyncio
+async def test_create_match_non_ascii_body():
+    with AsyncConnectClientMocker('http://localhost') as mocker:
+        mocker.products.create(return_value={'test': 'data'}, match_body={'name': 'Peña'})
+        client = AsyncConnectClient('api_key', endpoint='http://localhost')
+        assert await client.products.create(payload={'name': 'Peña'}) == {'test': 'data'}
+
+
+@pytest.mark.asyncio
+async def test_unrequested_mock_fails():
+    with pytest.raises(AssertionError):
+        with AsyncConnectClientMocker('http://localhost') as mocker:
+            mocker.products.create(return_value={'test': 'data'})
+
+
 @pytest.mark.asyncio
 async def test_bulk_create():
     with AsyncConnectClientMocker('http://localhost') as mocker: