def test_equal_2(self): self.assertEqual(gc_content('A'), 0.0)
def test_equal_4(self): self.assertEqual(gc_content('CA'), 50.0)
def test_equal_5(self): self.assertEqual(gc_content('ACTGACTGAACCA'), 46.15)
def test_equal_3(self): self.assertEqual(gc_content('C'), 100.0)