def testGivenXIs1EquationAndXIs0WhenAskedForEqualityThenFalseIsReturned(
self):
equation1 = EquationBuilder.x_equals_0()
equation2 = EquationBuilder.x_equals_1()
self.assertFalse(equation1.equal(equation2))
self.assertFalse(equation1 == equation2)
self.assertTrue(equation1 != equation2)
def testGivenXIs0EquationWhenAddOIsYEquationThenYIsXEquationIsObtained(
self):
equation = EquationBuilder.x_equals_0()
equation.add_equation(EquationBuilder.zero_equals_y())
expected_equation = EquationBuilder().left_term(
VariableBuilder().name('x').value(1.0).build()).left_term(
ConstantBuilder().value(0).build()).right_term(
ConstantBuilder().value(0).build()).right_term(
VariableBuilder().name('y').value(
1.0).build()).build()
self.assertTrue(equation.equal(expected_equation))