acronym: update tests to v1.6.0 (exercism#1596)

GascaK · cmccandless · commit 45be59e52142 · 2018-11-27T08:09:10.000-05:00
Updated test case for apostrophes in [canonical data](https://github.com/exercism/problem-specifications/blob/master/exercises/acronym/canonical-data.json) and updated example.py to correctly solve the new apostrophe test case.
diff --git a/exercises/acronym/acronym_test.py b/exercises/acronym/acronym_test.py
@@ -3,7 +3,7 @@
 from acronym import abbreviate
 
 
-# Tests adapted from `problem-specifications//canonical-data.json` @ v1.5.0
+# Tests adapted from `problem-specifications//canonical-data.json` @ v1.6.0
 
 class AcronymTest(unittest.TestCase):
     def test_basic(self):
@@ -31,6 +31,9 @@ def test_consecutive_delimiters(self):
         self.assertEqual(
             abbreviate('Something - I made up from thin air'), 'SIMUFTA')
 
+    def test_apostrophes(self):
+        self.assertEqual(abbreviate("Halley's Comet"), 'HC')
+
 
 if __name__ == '__main__':
     unittest.main()
diff --git a/exercises/acronym/example.py b/exercises/acronym/example.py
@@ -2,5 +2,5 @@
 
 
 def abbreviate(words):
-    regex = '[A-Z]+[a-z]*|[a-z]+'
+    regex = "[A-Z]+['a-z]*|['a-z]+"
     return ''.join(word[0].upper() for word in re.findall(regex, words))
