Help: test-contains-selector

The "test-contains-selector" command:

Usage: fossil test-contains-selector FILENAME SELECTOR

Determine if the CSS stylesheet FILENAME contains SELECTOR.

Note that as of 2020-05-28, the default rules are always emitted, so the containsSelector() logic is no longer applied when emitting style.css. It is unclear whether this test command is now obsolete or whether it may still serve a purpose.