def test_distributed_tracing(tracer, test_spans):
app = TestApp(wsgi.DDWSGIMiddleware(application, tracer=tracer))
resp = app.get("/", headers={"X-Datadog-Parent-Id": "1234", "X-Datadog-Trace-Id": "4321"})
assert config.wsgi.distributed_tracing is True
assert resp.status == "200 OK"
assert resp.status_int == 200
spans = test_spans.pop()
assert len(spans) == 4
root = spans[0]
assert root.name == "wsgi.request"
assert root.trace_id == 4321
assert root.parent_id == 1234
with override_config("wsgi", dict(distributed_tracing=False)):
app = TestApp(wsgi.DDWSGIMiddleware(application, tracer=tracer))
resp = app.get("/", headers={"X-Datadog-Parent-Id": "1234", "X-Datadog-Trace-Id": "4321"})
assert config.wsgi.distributed_tracing is False
assert resp.status == "200 OK"
assert resp.status_int == 200
spans = test_spans.pop()
assert len(spans) == 4
root = spans[0]
assert root.name == "wsgi.request"
assert root.trace_id != 4321
assert root.parent_id != 1234
def test_chunked():
app = TestApp(wsgi.DDWSGIMiddleware(application))
resp = app.get("/chunked")
assert resp.status == "200 OK"
assert resp.status_int == 200
assert resp.text.startswith("0123456789")
assert resp.text.endswith("999")
def test_generator_exit_ignored_in_top_level_span(tracer, test_spans):
with pytest.raises(generatorExit):
app = TestApp(wsgi.DDWSGIMiddleware(application, tracer=tracer))
app.get("/generatorError")
spans = test_spans.pop()
assert spans[2].error == 1
assert "GeneratorExit" in spans[2].get_tag("error.type")
assert spans[0].error == 0
def test_http_request_header_tracing(tracer, test_spans):
config.wsgi.http.trace_headers(["my-header"])
app = TestApp(wsgi.DDWSGIMiddleware(application, tracer=tracer))
resp = app.get("/", headers={"my-header": "test_value"})
assert resp.status == "200 OK"
assert resp.status_int == 200
spans = test_spans.pop()
assert spans[0].get_tag("http.request.headers.my-header") == "test_value"
def test_service_name_can_be_overriden(tracer, test_spans):
with override_config("wsgi", dict(service_name="test-override-service")):
app = TestApp(wsgi.DDWSGIMiddleware(application, tracer=tracer))
response = app.get("/")
assert response.status_code == 200
spans = test_spans.pop_traces()
assert len(spans) > 0
span = spans[0][0]
assert span.service == "test-override-service"
def test_chunked_response(tracer, test_spans):
app = TestApp(wsgi.DDWSGIMiddleware(application, tracer=tracer))
resp = app.get("/chunked")
assert resp.status == "200 OK"
assert resp.status_int == 200
assert resp.text.startswith("0123456789")
assert resp.text.endswith("999")
spans = test_spans.pop_traces()
span = spans[0][0]
assert span.resource == "GET /chunked"
assert span.name == "wsgi.request"
def test_middleware(tracer, test_spans):
app = TestApp(wsgi.DDWSGIMiddleware(application, tracer=tracer))
resp = app.get("/")
assert resp.status == "200 OK"
assert resp.status_int == 200
spans = test_spans.pop()
assert len(spans) == 4
with pytest.raises(Exception):
app.get("/error")
spans = test_spans.pop()
assert len(spans) == 2
assert spans[0].error == 1
def test_query_string_tracing(tracer, test_spans):
with override_http_config("wsgi", dict(trace_query_string=True)):
app = TestApp(wsgi.DDWSGIMiddleware(application, tracer=tracer))
response = app.get("/?foo=bar&x=y")
assert response.status_int == 200
assert response.status == "200 OK"
spans = test_spans.pop_traces()
assert len(spans) == 1
assert len(spans[0]) == 4
request_span = spans[0][0]
assert request_span.service == "wsgi"
assert request_span.name == "wsgi.request"
assert request_span.resource == "GET /"
assert request_span.error == 0
assert request_span.get_tag("http.method") == "GET"
assert request_span.get_tag("http.status_code") == "200"
assert request_span.get_tag("http.query.string") == "foo=bar&x=y"
assert spans[0][1].name == "wsgi.application"
assert spans[0][2].name == "wsgi.start_response"
assert spans[0][3].name == "wsgi.response"
def test_500():
app = TestApp(wsgi.DDWSGIMiddleware(application))
with pytest.raises(Exception):
app.get("/error")
def test_200():
app = TestApp(wsgi.DDWSGIMiddleware(application))
resp = app.get("/")
assert resp.status == "200 OK"
assert resp.status_int == 200
def test_generator_exit_ignored_in_top_level_span_snapshot():
with pytest.raises(generatorExit):
app = TestApp(wsgi.DDWSGIMiddleware(application))
app.get("/generatorError")