check_library_properties: Add unit tests for all output

Author: per1234

.travis.yml

@@ -78,7 +78,7 @@ before_install:
   # Check for files starting with a blank line
   - find . -path ./.git -prune -o -type f -print0 | xargs -0 -L1 bash -c 'head -1 "$0" | grep --binary-files=without-match --regexp="^$"; if [[ "$?" == "0" ]]; then echo "Blank line found at start of $0."; false; fi'
   # Check for tabs
-  - find . -path './.git' -prune -or -path './tests/check_keywords_txt' -prune -or -path './tests/check_library_manager_compliance' -prune -or -path './tests/check_library_properties' -prune -or -path './tests/check_library_structure' -prune -or -type f -exec grep --with-filename --line-number --binary-files=without-match --regexp=$'\t' '{}' \; -exec echo 'Tab found.' \; -exec false '{}' +
+  - find . -path './.git' -prune -or -path './tests/check_keywords_txt' -prune -or -path './tests/check_library_manager_compliance' -prune -or -path './tests/check_library_properties' -prune -or -path './tests/check_library_structure' -prune -or -not -path './tests/check_library_properties.bats' -or -type f -exec grep --with-filename --line-number --binary-files=without-match --regexp=$'\t' '{}' \; -exec echo 'Tab found.' \; -exec false '{}' +
   # Check for trailing whitespace
   - find . -path './.git' -prune -or -path './tests/check_library_properties' -prune -or -type f -exec grep --with-filename --line-number --binary-files=without-match --regexp='[[:blank:]]$' '{}' \; -exec echo 'Trailing whitespace found.' \; -exec false '{}' +
   # Check for non-Unix line endings