add clean_up method for store_test_failures tests to stop hanging art… (

#803)

* add clean_up method for store_test_failures tests to stop hanging artifacts in bigquery

* rename clean_up to teardown and change scope

* re-add function scope

tests/functional/adapter/store_test_failures_tests/test_store_test_failures.py

@@ -1,9 +1,22 @@
+import pytest
 from dbt.tests.adapter.store_test_failures_tests.test_store_test_failures import (
     StoreTestFailuresBase,
 )
 
 
+TEST_AUDIT_SCHEMA_SUFFIX = "dbt_test__aud"
+
+
 class TestBigQueryStoreTestFailures(StoreTestFailuresBase):
+    @pytest.fixture(scope="function", autouse=True)
+    def teardown_method(self, project):
+        yield
+        relation = project.adapter.Relation.create(
+            database=project.database, schema=f"{project.test_schema}_{TEST_AUDIT_SCHEMA_SUFFIX}"
+        )
+
+        project.adapter.drop_schema(relation)
+
     def test_store_and_assert(self, project):
         self.run_tests_store_one_failure(project)
         self.run_tests_store_failures_and_assert(project)