This test is about matching lines that consist of tag and nothing else but white space, and not showing them. Everything else is to be shown.
TEST showing malformed tags...
RESULT line above joins 2 malformed tags
TEST showing tags that lack name
...
TEST showing tags that are followed by non-white space...
RESULT line above joins 3 variations of suffix
TEST matching valid tags... we show nothing until the next RESULT
RESULT line above is “TEST ... until the next RESULT”
TEST validating code blocks...
RESULT there are 2 lines above