Negative test filtering / excluding specific tests from the test suite

[squeek502]

May not be relevant, but, if you’re not aware already, test filtering acts on fully qualified names:

Best practices for filtering tests

Since #19079, this is done automatically. More specifically, test filtering works on fully qualified names. As an example, here are two fully qualified test names from std.math: math.test.max value type math.decltest.isPowerOfTwo so filtering for math. would include all the tests in std.math. (for compleness, here’s an example of a fully qualified test name with a more nested namespace: crypto.25519.x25519.test.rfc7748 vector1)