def test_subtraction1(self):
'''A subtraction operation should be valid
2-1 = 1
'''
# a = 2, b = 1, operator = subtraction
self.fake_numbers = [2, 1, 1]
eq = Equation(10, self.fakeRandom)
self.assertTrue(eq.a is 2 and eq.b is 1 and eq.operator is 1)
self.assertTrue(eq.validate(1))
def test_addition(self):
'''An addition operation should be valid
1 + 2 = 3
'''
# a = 1, b = 2, operator = addition
self.fake_numbers = [1, 2, 0]
eq = Equation(10, self.fakeRandom)
self.assertTrue(eq.a is 1 and eq.b is 2 and eq.operator is 0)
self.assertTrue(eq.validate(3))
def test_subtraction2(self):
'''Subtraction should always be positive
When the first random number generated is smaller than the second
during a subtraction, the results should remain positive by swapping
the two operands.
'''
# a = 1, b = 2, operator = subtraction
self.fake_numbers = [2, 1, 1]
eq = Equation(10, self.fakeRandom)
self.assertTrue(eq.a is 2 and eq.b is 1 and eq.operator is 1)
self.assertTrue(eq.validate(1))