bpo-39450 Stripped whitespace before parsing the docstring in TestCase.shortDescription (GH-18175)

1 files changed, 9 insertions, 0 deletions

diff --git a/Lib/unittest/test/test_case.py b/Lib/unittest/test/test_case.py
index c2401c39b9..f855c4dc00 100644
--- a/Lib/unittest/test/test_case.py
+++ b/Lib/unittest/test/test_case.py
@@ -610,6 +610,15 @@ class Test_TestCase(unittest.TestCase, TestEquality, TestHashing):
                  'Tests shortDescription() for a method with a longer '
                  'docstring.')
 
+    def testShortDescriptionWhitespaceTrimming(self):
+        """
+            Tests shortDescription() whitespace is trimmed, so that the first
+            line of nonwhite-space text becomes the docstring.
+        """
+        self.assertEqual(
+            self.shortDescription(),
+            'Tests shortDescription() whitespace is trimmed, so that the first')
+
     def testAddTypeEqualityFunc(self):
         class SadSnake(object):
             """Dummy class for test_addTypeEqualityFunc."""