The following Unit Test frameworks are supported:

• UnitTests (Unit Testing framework built into Python)
• Nose
• PyTest

• If using Nose or PyTest, then ensure this test framework is installed in the currently configured Python interpreter.
• If not installed errors would be displayed in the Python Test Log output panel.

UnitTests are turned off by default. Unit Testing of Python code is supported by enabling one of the above Unit Tests via the user or workspace settings files (settings.json), as follows:

• Open the user or workspace settings file (settings.json)
• Pick a unit test framework and enable one of them as follows:

// Place your settings in this file to overwrite default and user settings.
{
    "python.unitTest.pyTestEnabled": true,
    "python.unitTest.unittestEnabled": false,
    "python.unitTest.nosetestsEnabled": false

Note: Use the value true to enable a particular unit test framework and false to disable.

Tests can be run (executed) a number of ways.

1. Click the Run Tests statusbar button and select any one of the options such as Run All Tests in the subsequent list of options displayed.
2. Select a file from the explorer and from the context menu select Run Unit Tests
3. Open a test file and click the Test code lens.