tests: add test for log leak

This is fixed in #352, and here is the test for it.

tests/test_log_leak.py

@@ -0,0 +1,29 @@
+import pytest
+import requests
+
+from pytest_httpserver import HTTPServer
+
+
+class Client:
+    def __init__(self) -> None:
+        self.url: str | None = None
+
+    def get(self):
+        if self.url:
+            requests.get(self.url)
+
+
+@pytest.fixture()
+def my_fixture():
+    client = Client()
+    yield client
+    client.get()
+
+
+def test_1(my_fixture: Client, httpserver: HTTPServer):
+    httpserver.expect_request("/foo").respond_with_data("OK")
+    my_fixture.url = httpserver.url_for("/foo")
+
+
+def test_2(httpserver: HTTPServer):
+    assert httpserver.log == []

tests/test_release.py

@@ -212,6 +212,7 @@ def test_sdist_contents(build: Build, version: str):
             "test_hooks.py",
             "test_ip_protocols.py",
             "test_json_matcher.py",
+            "test_log_leak.py",
             "test_log_querying.py",
             "test_mixed.py",
             "test_oneshot.py",