Add test for get_path

Author: draincoder

pyproject.toml

@@ -94,7 +94,7 @@ lint.ignore = [
 ]
 
 [tool.ruff.lint.per-file-ignores]
-"tests/**" = ["TID252", "PLR2004", "S101", "T201", "SLF001"]
+"tests/**" = ["TID252", "PLR2004", "S101", "T201", "SLF001", "PERF203"]
 "examples/**" = ["T201", "B018", "INP001"]
 
 [tool.ruff.lint.mccabe]

tests/integration/conftest.py

@@ -0,0 +1,13 @@
+import pytest
+from prometheus_client import REGISTRY
+
+
+@pytest.fixture(autouse=True)
+def _reset_registry() -> None:
+    collectors = tuple(REGISTRY._collector_to_names.keys())
+    for collector in collectors:
+        try:
+            collector._metrics.clear()
+            collector._metric_init()
+        except AttributeError:
+            pass

tests/integration/fastapi/test_middlewares.py

@@ -56,3 +56,23 @@ async def test_metrics_with_tracing() -> None:
             r'app_name="test",le="([\d.]+)",method="GET",path="\/"}\ 1.0 # \{TraceID="(\w+)"\} (\d+\.\d+) (\d+\.\d+)'
         )
         assert_that(metrics.payload.decode()).matches(pattern)
+        assert_that(metrics.payload.decode()).contains('fastapi_app_info{app_name="test"} 1.0')
+
+
+async def test_metrics_get_path() -> None:
+    # Arrange
+    app = FastAPI()
+    setup_metrics(app=app, app_name="test", include_trace_exemplar=False, include_metrics_endpoint=True)
+
+    # Act
+    async with fastapi_app(app) as client:
+        response = client.get("/metrics/")
+
+        # Assert
+        assert response.status_code == 200
+        assert_that(response.content.decode()).contains(
+            'fastapi_app_info{app_name="test"} 1.0',
+            'fastapi_requests_total{app_name="test",method="GET",path="/metrics"} 1.0',
+            'fastapi_requests_created{app_name="test",method="GET",path="/metrics"}',
+            'fastapi_requests_in_progress{app_name="test",method="GET",path="/metrics"} 1.0',
+        )