test.py

#!/usr/bin/env python3

import sys
import testslide


class AClass:
    def a_method(self):
        print("a_method")

    def b_method(self):
        print("b_method")


class AChild(AClass):
    def b_method(self):
        print("child_b_method")


class TestThing(testslide.TestCase):
    def test_parent(self):
        aclass = testslide.StrictMock(AClass)
        self.mock_constructor(sys.modules[__name__], "AClass").to_return_value(aclass)
        self.mock_callable(aclass, "a_method").to_return_value(None)

    def test_child(self):
        achild = testslide.StrictMock(AChild)
        self.mock_constructor(sys.modules[__name__], "AChild").to_return_value(achild)
        self.mock_callable(achild, "a_method").to_return_value(None)

    def test_parent_and_child_no_override(self):
        achild = testslide.StrictMock(AChild)
        self.mock_constructor(sys.modules[__name__], "AChild").to_return_value(achild)

        aclass = testslide.StrictMock(AClass)
        self.mock_constructor(sys.modules[__name__], "AClass").to_return_value(aclass)

        self.mock_callable(achild, "a_method").to_return_value(None)

    def test_parent_and_child_override(self):
        achild = testslide.StrictMock(AChild)
        self.mock_constructor(sys.modules[__name__], "AChild").to_return_value(achild)

        aclass = testslide.StrictMock(AClass)
        self.mock_constructor(sys.modules[__name__], "AClass").to_return_value(aclass)

        self.mock_callable(achild, "b_method").to_return_value(None)

    def test_parent_and_child_no_override_careful_ordering(self):
        achild = testslide.StrictMock(AChild)
        self.mock_constructor(sys.modules[__name__], "AChild").to_return_value(achild)
        self.mock_callable(achild, "a_method").to_return_value(None)

        aclass = testslide.StrictMock(AClass)
        self.mock_constructor(sys.modules[__name__], "AClass").to_return_value(aclass)