Switch from unittest to testutils.

PiperOrigin-RevId: 301875411
Change-Id: Ie5df8560ce1a17f3cbf30b8087fb807398eb5ee0

Author: dbieber

fire/helptext_test.py

@@ -20,7 +20,6 @@
 
 import os
 import textwrap
-import unittest
 
 from fire import formatting
 from fire import helptext
@@ -160,21 +159,19 @@ def testHelpTextNoInit(self):
     self.assertIn('NAME\n    OldStyleEmpty', help_screen)
     self.assertIn('SYNOPSIS\n    OldStyleEmpty', help_screen)
 
-  @unittest.skipIf(
-      six.PY2,
-      'Python 2 does not support single asterisk in function definition')
+  @testutils.skipIf(
+      six.PY2, 'Python 2 does not support keyword-only arguments.')
   def testHelpTextKeywordOnlyArgumentsWithDefault(self):
-    component = tc.py3.KeywordOnly.with_default
+    component = tc.py3.KeywordOnly.with_default  # pytype: disable=module-attr
     output = helptext.HelpText(
         component=component, trace=trace.FireTrace(component, 'with_default'))
     self.assertIn('NAME\n    with_default', output)
     self.assertIn('FLAGS\n    --x=X', output)
 
-  @unittest.skipIf(
-      six.PY2,
-      'Python 2 does not support single asterisk in function definition')
+  @testutils.skipIf(
+      six.PY2, 'Python 2 does not support keyword-only arguments.')
   def testHelpTextKeywordOnlyArgumentsWithoutDefault(self):
-    component = tc.py3.KeywordOnly.double
+    component = tc.py3.KeywordOnly.double  # pytype: disable=module-attr
     output = helptext.HelpText(
         component=component, trace=trace.FireTrace(component, 'double'))
     self.assertIn('NAME\n    double', output)