def test_equals_2(self): self.assertEqual(grader(0.9), 'A')
def test_equals_4(self): self.assertEqual(grader(-1), 'F')
def test_equals(self): self.assertEqual(grader(0.7), 'C')
def test_equals_3(self): self.assertEqual(grader(0.6), 'D')
def test_equals_2(self): self.assertEqual(grader(0.9), "A")
def test_equals(self): self.assertEqual(grader(0.7), "C")
def test_equals_4(self): self.assertEqual(grader(-1), "F")
def test_equals_3(self): self.assertEqual(grader(0.6), "D")