Exclude materializing run from materialization warning run count (#6692)

python_modules/dagster-graphql/dagster_graphql/implementation/fetch_runs.py

@@ -272,6 +272,12 @@ def get_asset_runs_count_by_step(graphene_info, asset_nodes):
                 for job_name in job_names
             ]
         )
+
+        # If a materialization has occurred, we subtract one so that the runs count
+        # does not include the run that generated the materialization.
+        if event:
+            runs_count -= 1
+
         jobs_runs_count[step_key] = GrapheneJobRunsCount(
             step_key, job_names, runs_count, True if event else False
         )

python_modules/dagster-graphql/dagster_graphql_tests/graphql/test_assets.py

@@ -769,8 +769,8 @@ def get_response_by_step(response):
         assert result.data["repositoryOrError"]
         result = get_response_by_step(result.data["repositoryOrError"]["latestRunByStep"])
         assert result["asset_1"]["jobNames"] == ["failure_assets_job"]
-        # A job containing asset 1 was run 6 times, since latest materialization
-        assert result["asset_1"]["count"] == 6
+        # A job containing asset 1 was run 5 times, since latest materialization
+        assert result["asset_1"]["count"] == 5
         assert result["asset_1"]["sinceLatestMaterialization"] == True
         # A job containing asset 2 was run 6 times, asset 2 was never materialized
         assert result["asset_2"]["count"] == 6