evilunit 0.1

evil parts of unittest(python3 only)

features

• shortcuts

• parameterized

• nested

shortcuts

this is tiresome.

import unittest

class Tests(unittest.TestCase):
    def _getTarget(self):
        from foo.bar import boo
        return boo

    def _callFUT(self, *args, **kwargs):
        self._getTarget()(*args, **kwargs)

    def test_it(self):
        params = object()
        result = self._callFUT(params)
        self.assertEqual(result, params)

shortcuts decorator

• test_target – adding _getTarget(), _makeOne() methods

• test_function – adding _getTarget(), _callFUT() methods

import unittest
from evilunit import test_function

@test_function("foo.bar:boo")
class Tests(unittest.TestCase):
    def test_it(self):
        params = object()
        result = self._callFUT(params)
        self.assertEqual(result, params)

parameterized

import unittest
from evilunit import NestedTest, nested_test_compile

class Tests(unittest.TestCase):
    def _callFUT(self, x, y):
        return x + y

    @paramaterized([
        (1, 2, 3),
        (1, 1, 2),
        (1, 0, 1),
        (2, 3, 5),
        (4, 4, 8)
    ])
    def _test_add(self, x, y, expected):
        """adding number"""
        result = self._callFUT(x, y)
        self.assertEqual(result, expected)

    @classmethod
    def tearDownClass(cls):
        count_of_test_method = sum(1 for k, v in cls.__dict__.items() if k.startswith("test_") and callable(v))
        assert count_of_test_method == 5

nested

import unittest
from evilunit import NestedTest, nested_test_compile


L = []


@nested_test_compile
class ToplevelTest(NestedTest):
    @classmethod
    def setUpClass(cls):
        assert issubclass(cls, unittest.TestCase)
        L.append("t1")

    def setUp(self):
        assert isinstance(self, unittest.TestCase)
        L.append("t2")

    def test_it(self):
        assert isinstance(self, unittest.TestCase)
        L.append("t3")
        self.assertEqual(L, ["t1", "t2", "t3"])

    def tearDown(self):
        assert isinstance(self, unittest.TestCase)
        global L
        L = []

    class Child(NestedTest):
        @classmethod
        def setUpClass(cls):
            assert issubclass(cls, unittest.TestCase)
            L.append("m1")

        def setUp(self):
            assert isinstance(self, unittest.TestCase)
            L.append("m2")

        def test_it(self):
            assert isinstance(self, unittest.TestCase)
            L.append("m3")
            self.assertEqual(L, ["t1", "m1", "t2", "m2", "m3"])

        def tearDown(self):
            assert isinstance(self, unittest.TestCase)
            global L
            L = []

        class GrandChild(NestedTest):
            @classmethod
            def setUpClass(cls):
                assert issubclass(cls, unittest.TestCase)
                L.append("n1")

            def setUp(self):
                assert isinstance(self, unittest.TestCase)
                L.append("n2")

            def test_it(self):
                assert isinstance(self, unittest.TestCase)
                L.append("n3")
                self.assertEqual(L, ["t1", "m1", "n1", "t2", "m2", "n2", "n3"])

            def tearDown(self):
                assert isinstance(self, unittest.TestCase)
                global L
                L = []

    class Child2(NestedTest):
        @classmethod
        def setUpClass(cls):
            assert issubclass(cls, unittest.TestCase)
            L.append("o1")

        def setUp(self):
            assert isinstance(self, unittest.TestCase)
            L.append("o2")

        def test_it(self):
            assert isinstance(self, unittest.TestCase)
            L.append("o3")
            self.assertEqual(L, ["t1", "o1", "t2", "o2", "o3"])

        def tearDown(self):
            assert isinstance(self, unittest.TestCase)
            global L
            L = []