test.py: compute coverage per top-level module.

appengine/findit/waterfall/detect_first_failure_pipeline.py

 # Copyright 2014 The Chromium Authors. All rights reserved.
 # Use of this source code is governed by a BSD-style license that can be
 # found in the LICENSE file.
 
 import base64
 import json
 
 from common import constants
 from common.http_client_appengine import HttpClientAppengine as HttpClient
 from common.pipeline_wrapper import BasePipeline
@@ skipping 437 matching lines @@
 
     builds = dict()
     self._SaveBlamelistAndChromiumRevisionIntoDict(build_info, builds)
 
     failed_steps = self._CreateADictOfFailedSteps(build_info)
 
     # Checks first failed builds for each failed step.
     self._CheckForFirstKnownFailure(
         master_name, builder_name, build_number, failed_steps, builds)
 
-    if build_failure_type == failure_type.TEST:
+    if build_failure_type == failure_type.TEST:  # pragma: no branch
       # Checks first failed builds for each failed test.
       self._CheckFirstKnownFailureForSwarmingTests(
           master_name, builder_name, build_number, failed_steps, builds)
 
     failure_info['builds'] = builds
     failure_info['failed_steps'] = failed_steps
 
     analysis = WfAnalysis.Get(master_name, builder_name, build_number)
     analysis.not_passed_steps = build_info.not_passed_steps
     analysis.build_failure_type = build_failure_type
     analysis.put()
 
     return failure_info