def test_ValidSample_PairAndQuad(self): self.assertTrue(valid_value_2([1, 1, 1, 1, 2, 2]))
def test_InvalidSample_Triplet(self): self.assertFalse(valid_value_2([1, 2, 3, 4, 4, 4]))
def test_ValidSample_Pairs(self): self.assertTrue(valid_value_2([1, 1, 2, 2, 3, 3]))
def test_Invalid_SingleDigit(self): self.assertFalse(valid_value_2([1, 1, 1, 1, 1, 1]))
def test_InvalidSample_NoDouble(self): self.assertFalse(valid_value_2([1, 2, 3, 7, 8, 9]))
def test_InvalidSample_decreasingDigit(self): self.assertFalse(valid_value_2([2, 2, 3, 4, 5, 0]))