You don't need to mock anything; you just need to ensure that the global variable is in a known state before running each test. Also, using from main import * creates a new global named …

Oct 25, 2016 · In your test however, you are setting an instance attribute. You'd have to set it on the class directly instead: type(self).result = 'ok' or. MyTest.result = 'ok' The latter ties it to the …

Apr 6, 2020 · If you need to test code with a different value of discount, it should be a parameter, not a hard-coded local variable. You can control the value of is_active by either passing a …

Aug 30, 2023 · To accomplish this, we can utilize the patch function from the unittest.mock module. The patch function serves the purpose of modifying objects for testing purposes. It …

Modifying global variables in Python unittest framework can be achieved by using the global keyword within the test cases or the setUp method. This allows us to modify global state and …

Oct 13, 2020 · Sometimes, tests need to change environment variables. This is straightforward in tests using Python’s unittest, thanks to os.environ quacking like a dict, and the mock.patch.dict …

Create configuration files test_config.py and production_config.py. Select one of them using the environment variable or a command-line argument. Import it (or read/parse, if you choose …

To simplify the process, I recommend using the pytest-mock library: https://pypi.org/project/pytest-mock/ What I was trying to do? Firstly, suppose you have a file called demo_file.py with the …

Tests can be configured anytime by using the Python: Configure Tests command from the Command Palette or by setting either python.testing.unittestEnabled or …

Jan 23, 2025 · Patching local variables in Python unit tests is a powerful technique that allows you to isolate the code under test, control dependencies, and test different scenarios. By …