Remove log pollution from charm tracing in scenario tests (#220)

* Remove log pollution from charm tracing in scenario tests

* fmt

tests/scenario/test_machine_charm/conftest.py

@@ -3,6 +3,7 @@
 from unittest.mock import PropertyMock, patch
 
 import pytest
+from charms.tempo_coordinator_k8s.v0.charm_tracing import charm_tracing_disabled
 
 
 @pytest.fixture
@@ -39,3 +40,9 @@ def mock_refresh():
 @pytest.fixture(params=CONFIG_MATRIX)
 def charm_config(request):
     return request.param
+
+
+@pytest.fixture(autouse=True)
+def mock_charm_tracing():
+    with charm_tracing_disabled():
+        yield

tests/scenario/test_machine_charm/test_tracing_configuration.py

@@ -75,7 +75,10 @@ def test_tracing_sampling_config_is_present(
         "tracing",
         remote_app_data=TracingProviderAppData(
             receivers=[
-                Receiver(protocol={"name": "otlp_grpc", "type": "grpc"}, url="http:foo.com:1111")
+                Receiver(protocol={"name": "otlp_grpc", "type": "grpc"}, url="http:foo.com:1111"),
+                Receiver(
+                    protocol={"name": "otlp_http", "type": "http"}, url="http://localhost:1112"
+                ),
             ]
         ).dump(),
     )