def test_true_2(self): self.assertTrue(isDigit('34.65'))
def test_false_6(self): self.assertFalse(isDigit(' '))
def test_true_1(self): self.assertTrue(isDigit('-234.4'))
def test_false_4(self): self.assertFalse(isDigit('3 4 '))
def test_false_3(self): self.assertFalse(isDigit('3-4'))
def test_false_1(self): self.assertFalse(isDigit('s2324'))
def test_true_4(self): self.assertTrue(isDigit('0.0'))
def test_true_3(self): self.assertTrue(isDigit('-0'))