Fix volume threshold assertions: dbt reports 'fail' not 'error'

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

Author: haritamar

integration_tests/tests/test_volume_threshold.py

@@ -54,7 +54,7 @@ def test_large_spike_fails(test_id: str, dbt_project: DbtProject):
         data.append({TIMESTAMP_COLUMN: yesterday.strftime(DATE_FORMAT)})
 
     test_result = dbt_project.test(test_id, DBT_TEST_NAME, DBT_TEST_ARGS, data=data)
-    assert test_result["status"] == "error"
+    assert test_result["status"] == "fail"
 
 
 def test_large_drop_fails(test_id: str, dbt_project: DbtProject):
@@ -75,7 +75,7 @@ def test_large_drop_fails(test_id: str, dbt_project: DbtProject):
         data.append({TIMESTAMP_COLUMN: yesterday.strftime(DATE_FORMAT)})
 
     test_result = dbt_project.test(test_id, DBT_TEST_NAME, DBT_TEST_ARGS, data=data)
-    assert test_result["status"] == "error"
+    assert test_result["status"] == "fail"
 
 
 def test_direction_spike_ignores_drop(test_id: str, dbt_project: DbtProject):
@@ -208,7 +208,7 @@ def test_where_expression(test_id: str, dbt_project: DbtProject):
 
     # Without filter: total yesterday = 300 vs 100 two days ago -> big spike -> error
     test_result = dbt_project.test(test_id, DBT_TEST_NAME, DBT_TEST_ARGS, data=data)
-    assert test_result["status"] == "error"
+    assert test_result["status"] == "fail"
 
     # With filter on category A: 100 yesterday vs 100 two days ago -> stable -> pass
     test_args_filtered = {