Fix Unittest Subtest Run Menu Result

[eleanorjboyd]

Righthand side is the unittest run with the new discovery code, left side is the unittest run with the old code. The new rewrite currently doesn't expand the subtests in the test explorer menu. Update new rewrite to look like original.

[roblourens]

The new rewrite currently doesn't expand the subtests in the test explorer menu

Is this the other way around? In the screenshot it looks like it does show the subtests but the old one didn't?

[eleanorjboyd]

oops got the two mixed up! The left-hand side is the rewrite and the right is the current display. Here are the verification steps:

1. launch vscode with the environment variable ENABLE_PYTHON_TESTING_REWRITE = '1'
2. (use an existing environment or create one) to create use the create environment command from the command palette, select venv and whatever python version you want >=3.7
3. Copy this code in:

import unittest

class NumbersTest(unittest.TestCase):

    def test_even(self):
        """
        Test that numbers between 0 and 5 are all even.
        """
        for i in range(0, 6):
            with self.subTest(i=i):
                self.assertEqual(i % 2, 0)

4. Run this test file, and confirm that the subtests are expanded in the test explorer after running the tests