archey4/archey/test/__init__.py
2022-09-18 11:09:21 +02:00

53 lines
2.1 KiB
Python

"""`archey.test` module initialization file"""
import logging
import unittest
# Disable `WARNING` log level (internally used).
logging.disable(logging.WARNING)
# This global stops `unittest` from printing tracebacks _beyond_ our custom assertion.
# See <https://stackoverflow.com/a/49929579>.
__unittest = True # pylint: disable=invalid-name
# From <https://stackoverflow.com/a/15868615>.
class CustomAssertions:
"""This class defines our custom assertion methods being used in Archey unit testing"""
@staticmethod
def assertListEmpty(obj): # pylint: disable=invalid-name
"""Simple method to check that passed `obj` is an **empty** `list`"""
if not isinstance(obj, list):
raise AssertionError("First sequence is not a list: " + str(obj))
if obj:
raise AssertionError("First sequence is not empty: " + str(obj))
@staticmethod
def assertTupleEmpty(obj): # pylint: disable=invalid-name
"""Simple method to check that passed `obj` is an **empty** `tuple`"""
if not isinstance(obj, tuple):
raise AssertionError("First sequence is not a tuple: " + str(obj))
if obj:
raise AssertionError("First sequence is not empty: " + str(obj))
class TestCustomAssertions(unittest.TestCase, CustomAssertions):
"""This class implements test cases for the custom Archey unit testing framework (#inception)"""
def test_assert_list_empty(self):
"""Test cases for our `self.assertListEmpty` custom assertion"""
self.assertListEmpty([])
self.assertRaises(AssertionError, self.assertListEmpty, {})
self.assertRaises(AssertionError, self.assertListEmpty, "test")
self.assertRaises(AssertionError, self.assertListEmpty, ["test"])
def test_assert_tuple_empty(self):
"""Test cases for our `self.assertTupleEmpty` custom assertion"""
self.assertTupleEmpty(())
self.assertRaises(AssertionError, self.assertTupleEmpty, {})
self.assertRaises(AssertionError, self.assertTupleEmpty, "test")
self.assertRaises(AssertionError, self.assertTupleEmpty, ("test",))