insper/python-string-test-runner

Unittest wrapper that runs tests contained in strings.

Python String Test Runner

Unittest wrapper that runs tests contained in strings.

Setup

pip install strtest

Running tests

run_str_test.py [-f function_name] file_with_the_function.py test_file.py

There is an example here

Test files

Test files must contain a class called TestCase that inherits from str_test.TestCaseWrapper. All methods with names starting with test_ will be considered tests.

from strtest import str_test

class TestCase(str_test.TestCaseWrapper):
    TIMEOUT = 1  # In seconds

    def test_1(self):
        result = self.function(1, 2)
        self.assertEqual(3, result, msg=f'Results are not equal. Expected: 3. Got: {result}')

    def test_2(self):
        self.assertTrue(False, msg='This will always fail')

Example

Assume you have the test file all_tests.py with the code above and want to test the file my_implementation.py containing the following code:

def add_numbers(a, b):
    return a + b

You can run the tests with:

run_str_test.py -f add_numbers my_implementation.py all_tests.py