def testMul5(self):
p1 = Polynomial([1, 2])
self.assertRaises(TypeError, p1.__mul__, "5")
def testMul4(self):
p1 = Polynomial([1, 2])
p2 = 1.4
p3 = p1 * p2
self.assertEqual(p3.coeffs, [1.4, 2.8])
self.assertEqual(p3.degree, 1)
def testMul5(self):
p1 = Polynomial([1, 2])
p2 = 4
p3 = p1 * p2
self.assertEqual(p3.coeffs, [4, 8])
self.assertEqual(p3.degree, 1)
def testMul2(self):
p1 = Polynomial([1, 1])
p2 = Polynomial([1, 1, 1])
p3 = p1 * p2
self.assertEqual(p3.coeffs, [1, 2, 2, 1])
self.assertEqual(p3.degree, 3)
def testMul3(self):
p1 = Polynomial([1, 1, 0])
p2 = Polynomial([0, 0])
p3 = p1 * p2
self.assertEqual(p3.coeffs, [0])
self.assertEqual(p3.degree, 0)
def testStr1(self):
p1 = Polynomial([3, 4, 5, 1])
self.assertEqual(str(p1), '3x^3+4x^2+5x+1')
def testIntInit(self):
p = Polynomial([2, 1, 3])
self.assertEqual(p.coeffs, [2, 1, 3])
self.assertEqual(p.degree, 2)
def testNotEqual(self):
p1 = Polynomial([1, 2, 3])
p2 = Polynomial([1, 3])
self.assertFalse(p1 == p2)
def testConstEqual(self):
p1 = Polynomial([5])
p2 = 5
self.assertTrue(p1 == p2)
def testFirstNullCoeffsWithZeroDegree(self):
p = Polynomial([0, 0, 1])
self.assertEqual(p.coeffs, [1])
self.assertEqual(p.degree, 0)
def testEqual(self):
p1 = Polynomial([1, 2, 3])
p2 = Polynomial([1, 2, 3])
self.assertTrue(p1 == p2)
def testFirstNullCoeffs(self):
p = Polynomial([0, 0, 1, 2])
self.assertEqual(p.coeffs, [1, 2])
self.assertEqual(p.degree, 1)
def testStr3(self):
p1 = Polynomial([0, -1, -1])
self.assertEqual(str(p1), '-x-1')
def testStr2(self):
p1 = Polynomial([-1,0, 1])
self.assertEqual(str(p1), '-x^2+1')
def testStr(self):
p1 = Polynomial([0, -2])
self.assertEqual(str(p1), '-2')
def testStringEquals(self):
p1 = Polynomial([2, 0, 0])
self.assertFalse(p1 == "2")
def testStr0(self):
p1 = Polynomial([0, 0, 0])
self.assertEqual(str(p1), '0')
def testFloatInit(self):
p = Polynomial([-1.0, 0.0, -4.5, 4.0, 7.1])
self.assertEqual(p.coeffs, [-1.0, 0.0, -4.5, 4.0, 7.1])
self.assertEqual(p.degree, 4)
