unittest-assertions

unittest_assertions

Thin wrapper around the python builtin unittest allowing developers to use the builtin assertions for non-unittest use cases.

Key Features:

• Easy: Designed to make it be simple allowing developers to use the builtin unittest assertions for their own use cases.
• Great Developer Experience: Being fully typed, documented, and tested makes it great for editor support and extension.
• There is More!!!:
  • assertify: Simple, Flexible, and Extendable python3.6+ library to evaluate an expression and return True/False or raise an AssertionError or Exception.

Installation

pip install unittest-assertions

Examples

from unittest_assertions.identity import AssertIsInstance

assert_is_instance = AssertIsInstance(msg="Raised an AssertionError")
assert_is_instance("example str", int) # raise AssertionError("'example str' is not an instance of <class 'int'> : Raised an AssertionError")

from unittest_assertions import AssertEqual

assert_equal = AssertEqual()
assert_equal(1, 1)
assert_equal(first="hello", second="hello")

from unittest_assertions import AssertNotIn
assert_in = AssertNotIn()
assert_in(member=1, container=[5,2,3])

Asserters

Container

Asserter	Expression
AssertIn	assert member in container
AssertNotIn	assert member not in container

Control

Asserter	Expression
AssertRaises	assert function raises expected_exception
AssertWarns	assert function warns expected_warning
AssertLogs	assert logger(level)

Equality

Asserter	Expression
AssertEqual	assert first == second
AssertNotEqual	assert first != second
AssertAlmostEqual	assert first ~= second
AssertNotAlmostEqual	assert first !~= second
AssertCountEqual	assert Counter(list(first) == Counter(list(second))
AssertMultilineEqual	assert first.splitlines() == second.splitlines()
AssertSequenceEqual	assert seq1 == seq2
AssertListEqual	assert list1 == list2
AssertTupleEqual	assert tuple1 == tuple2
AssertSetEqual	assert set1 == set2
AssertDictEqual	assert dict1 == dict2
AssertLess	assert a < b
AssertLessEqual	assert a <= b
AssertGreater	assert a > b
AssertGreater	assert a >= b

Identity

Asserter	Expression
AssertTrue	assert expr is True
AssertFalse	assert expr is False
AssertIs	assert exp1 is exp2
AssertIsNot	assert exp1 is not exp2
AssertIsNone	assert obj is None
AssertIsNotNone	assert obj is not None
AssertIsInstance	assert isinstance(obj,class)
AssertIsNotInstance	assert not isinstance(obj,class)

Regex

Asserter	Expression
AssertRaisesRegex	assert expected_regex in expected_exception_message
AssertWarnsRegex	assert expected_regex in expected_warning_message
AssertRegex	assert text in expected_regex
AssertNotRegex	assert text not in expected_regex