def test_long_ones(self):
ret = get_polynomial_string([1, 5, 1, 2, 1, 1])
self.assertEqual(ret, "x^5 + 5(x^4) + x^3 + 2(x^2) + x + 1")
def test_single(self):
ret = get_polynomial_string([7])
self.assertEqual(ret, "7")
def test_negatives(self):
ret = get_polynomial_string([4, -2, -5, 3])
self.assertEqual(ret, "4(x^3) - 2(x^2) - 5x + 3")
def test_nones_end(self):
ret = get_polynomial_string([6, 2, None, None])
self.assertEqual(ret, "6(x^3) + 2(x^2)")
def test_long(self):
ret = get_polynomial_string([3, 5, 8, 2, 4, 6])
self.assertEqual(ret, "3(x^5) + 5(x^4) + 8(x^3) + 2(x^2) + 4x + 6")
def test_working(self):
ret = get_polynomial_string([8, 2, 4, 6])
self.assertEqual(ret, "8(x^3) + 2(x^2) + 4x + 6")
def test_leading_nones(self):
ret = get_polynomial_string([None, None, 4, 6])
self.assertEqual(ret, "4x + 6")
def test_single_negative_one(self):
ret = get_polynomial_string([-1])
self.assertEqual(ret, "-1")
def test_leading_zero_then_negative_one(self):
ret = get_polynomial_string([0, -1, 4, 6])
self.assertEqual(ret, "-x^2 + 4x + 6")
def test_long_negative_ones(self):
ret = get_polynomial_string([-1, 5, -1, 2, -1, 6])
self.assertEqual(ret, "-x^5 + 5(x^4) - x^3 + 2(x^2) - x + 6")
def test_two_negative_ones(self):
ret = get_polynomial_string([-1, -1])
self.assertEqual(ret, "-x - 1")
def test_negative_one_end(self):
ret = get_polynomial_string([9, 2, 4, -1])
self.assertEqual(ret, "9(x^3) + 2(x^2) + 4x - 1")
def test_zeros(self):
ret = get_polynomial_string([0, 0])
self.assertEqual(ret, "0")
def test_negative_ones(self):
ret = get_polynomial_string([4, -1, -1, 3])
self.assertEqual(ret, "4(x^3) - x^2 - x + 3")
def test_zeros_end(self):
ret = get_polynomial_string([6, 2, 0, 0])
self.assertEqual(ret, "6(x^3) + 2(x^2)")
def test_negative_and_positive_ones(self):
ret = get_polynomial_string([-1, 1, -1, 1])
self.assertEqual(ret, "-x^3 + x^2 - x + 1")
def test_nones(self):
ret = get_polynomial_string([None, None])
self.assertEqual(ret, "0")
def test_zero_and_negative_one_middle(self):
ret = get_polynomial_string([2, 0, -1, 6])
self.assertEqual(ret, "2(x^3) - x + 6")
def test_leading_none(self):
ret = get_polynomial_string([None, 2, 4, 6])
self.assertEqual(ret, "2(x^2) + 4x + 6")
def test_zero_middle_negative_one_end(self):
ret = get_polynomial_string([2, 4, 0, -1])
self.assertEqual(ret, "2(x^3) + 4(x^2) - 1")
def test_none_middle(self):
ret = get_polynomial_string([2, 4, None, 6])
self.assertEqual(ret, "2(x^3) + 4(x^2) + 6")
def test_negative_ones_end(self):
ret = get_polynomial_string([6, 2, -1, -1])
self.assertEqual(ret, "6(x^3) + 2(x^2) - x - 1")
def test_none_end(self):
ret = get_polynomial_string([2, 6, 3, 0])
self.assertEqual(ret, "2(x^3) + 6(x^2) + 3x")
def test_negative_one_middle_zero_end(self):
ret = get_polynomial_string([2, 6, -1, 0])
self.assertEqual(ret, "2(x^3) + 6(x^2) - x")
def test_two(self):
ret = get_polynomial_string([3, 7])
self.assertEqual(ret, "3x + 7")
def test_leading_zeros(self):
ret = get_polynomial_string([0, 0, 4, 6])
self.assertEqual(ret, "4x + 6")
def test_empty_list(self):
ret = get_polynomial_string([])
self.assertEqual(ret, "0")
def test_zeros_middle(self):
ret = get_polynomial_string([2, 0, 0, 6])
self.assertEqual(ret, "2(x^3) + 6")
def test_leading_negative(self):
ret = get_polynomial_string([-9, 2, 4, 6])
self.assertEqual(ret, "-9(x^3) + 2(x^2) + 4x + 6")
def test_ones_end(self):
ret = get_polynomial_string([6, 2, 1, 1])
self.assertEqual(ret, "6(x^3) + 2(x^2) + x + 1")