Unit test Warning Command in Logic

[flxffy]

• [x] Test that arguments are parsed correctly.

• [x] Test that thresholds are set correctly.

• [x] Test that command results give right output.

[flxffy]

WarningCommandParserTest#parse_allFieldsPresent_success issue with tokenizer.

[JonathanLeeWH]

Move to milestone v1.4 with permission from @flxffy