def test_case_1(self): self.assertEqual(program.longestPalindromicSubstring("a"), "a")
def test_case_10(self): self.assertEqual( program.longestPalindromicSubstring( "zzzzzzz2345abbbba5432zzbbababa"), "zz2345abbbba5432zz")
def test_case_12(self): self.assertEqual( program.longestPalindromicSubstring("z234a5abbba54a32z"), "5abbba5")
def test_case_9(self): self.assertEqual(program.longestPalindromicSubstring("abcdefggfedcba"), "abcdefggfedcba")
def test_case_5(self): self.assertEqual(program.longestPalindromicSubstring("abaxyzzyxf"), "xyzzyx")
def test_case_4(self): self.assertEqual( program.longestPalindromicSubstring("abccbait's highnoon"), "abccba")
def test_case_3(self): self.assertEqual( program.longestPalindromicSubstring("noon high it is"), "noon")
def test_case_2(self): self.assertEqual(program.longestPalindromicSubstring("it's highnoon"), "noon")