Waterfall components of regression range finder.

appengine/findit/waterfall/test/process_base_swarming_task_result_pipeline_test.py

+import datetime
+
+from waterfall.test import wf_testcase
+from waterfall.process_base_swarming_task_result_pipeline import (
+    ProcessBaseSwarmingTaskResultPipeline)
+
+class ProcessBaseSwarmingTaskResultPipelineTest(wf_testcase.WaterfallTestCase):
+  def setUp(self):
+    super(ProcessBaseSwarmingTaskResultPipelineTest, self).setUp()
+    self.pipeline = ProcessBaseSwarmingTaskResultPipeline()
+    self.master_name = 'm'
+    self.builder_name = 'b'
+    self.build_number = 121
+    self.step_name = 'abc_tests on platform'
+    self.test_name = 'test'
+
+  def testConvertDateTime(self):
+    fmt = '%Y-%m-%dT%H:%M:%S.%f'
+    time_string = '2016-02-10T18:32:06.538220'
+    test_time = self.pipeline._ConvertDateTime(time_string)
+    time = datetime.datetime.strptime(time_string, fmt)
+    self.assertEqual(test_time, time)
+
+  def testConvertDateTimeNone(self):
+    time_string = ''
+    test_time = self.pipeline._ConvertDateTime(time_string)
+    self.assertIsNone(test_time)
+
+  def testConvertDateTimefailure(self):
+    time_string = 'abc'
+    try:
+      #pylint: disable=unused-variable
+      test_time = self.pipeline._ConvertDateTime(time_string)

[lijeffrey, 2016/07/29 05:18:39]

ah you're trying to get a raises. There should be a
self.assertRaises(ValueError, ... some other args I forgot) so do a grep for
assertRaises in the codebase for examples. This way you can get rid of the try
except/pass/assertEqual(1,2) hackery

[caiw, 2016/07/29 19:55:52]

Done.

+      self.assertEqual(1,2) # pragma: no cover
+    except ValueError:
+      pass