[Findit] Adding central config test class for unit tests

appengine/findit/waterfall/test/analyze_build_failure_pipeline_test.py

Index: appengine/findit/waterfall/test/analyze_build_failure_pipeline_test.py
diff --git a/appengine/findit/waterfall/test/analyze_build_failure_pipeline_test.py b/appengine/findit/waterfall/test/analyze_build_failure_pipeline_test.py
index 0978af793332859474c42c160f554a172cc28169..e82de912c8f332dded42c2885c8b3875fd6ad0c5 100644
--- a/appengine/findit/waterfall/test/analyze_build_failure_pipeline_test.py
+++ b/appengine/findit/waterfall/test/analyze_build_failure_pipeline_test.py
@@ -4,19 +4,17 @@
 
 import os
 
-from testing_utils import testing
-
 from common import chromium_deps
-from model.wf_analysis import WfAnalysis
 from model import wf_analysis_status
+from model.wf_analysis import WfAnalysis
 from pipeline_wrapper import pipeline_handlers
 from waterfall import buildbot
-from waterfall.analyze_build_failure_pipeline import AnalyzeBuildFailurePipeline
 from waterfall import lock_util
-from waterfall import waterfall_config
+from waterfall.analyze_build_failure_pipeline import AnalyzeBuildFailurePipeline
+from waterfall.test import wf_testcase
 
 
-class AnalyzeBuildFailurePipelineTest(testing.AppengineTestCase):
+class AnalyzeBuildFailurePipelineTest(wf_testcase.WaterfallTestCase):
   app_module = pipeline_handlers._APP
 
   def _MockChangeLog(
@@ -104,13 +102,6 @@ class AnalyzeBuildFailurePipelineTest(testing.AppengineTestCase):
 
     self._Setup(master_name, builder_name, build_number)
 
-    def MockStepIsSupportedForMaster(*_):
-      return True
-
-    self.mock(waterfall_config,
-              'StepIsSupportedForMaster',
-              MockStepIsSupportedForMaster)
-
     root_pipeline = AnalyzeBuildFailurePipeline(master_name,
                                                 builder_name,
                                                 build_number,