echo "F -whitespace" >.gitattributes &&
git diff --check >output &&
- ! test -s output
+ test_must_be_empty output
+
+'
+
+test_expect_success 'checkdiff shows correct line number for trailing blank lines' '
+
+ printf "a\nb\n" > G &&
+ git add G &&
+ printf "x\nx\nx\na\nb\nc\n\n" > G &&
+ [ "$(git diff --check -- G)" = "G:7: new blank line at EOF." ]
'