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1 parent d14b662 commit a6329f3Copy full SHA for a6329f3
tests/test_is_isbn_10.py
@@ -48,3 +48,5 @@ def test_returns_false_if_not_isbn(self):
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self.assertFalse(is_isbn_10('1506715214!'))
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self.assertFalse(is_isbn_10(' 1506715214'))
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self.assertFalse(is_isbn_10('1506715214y'))
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+ self.assertFalse(is_isbn_10('x' * 10))
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+ self.assertFalse(is_isbn_10(''))
tests/test_is_isbn_13.py
@@ -46,3 +46,5 @@ def test_returns_false_if_not_isbn(self):
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self.assertFalse(is_isbn_13('9780312498580!'))
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self.assertFalse(is_isbn_13(' 9780312498580'))
self.assertFalse(is_isbn_13('x9780312498580'))
+ self.assertFalse(is_isbn_13('x' * 13))
+ self.assertFalse(is_isbn_13(''))
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