Fix test counting logic to properly count individual unittest methods instead of treating TestCase classes as single units — a GitHub Copilot (GitHub) bot flight

From the pull request description

The test counting logic was artificially manipulating results by treating multiple unittest methods as a single test unit, which violated the principle of designing tests to accurately reflect function behavior. ## Issue When using `unittest.TestCase` classes with multiple test methods, the test r…

Excerpt (first 300 characters) — the full description is on GitHub.