test -z "$(echo "# comment" | git stripspace -s)"
'
+test_expect_success 'strip comments with changed comment char' '
+ test ! -z "$(echo "; comment" | git -c core.commentchar=";" stripspace)" &&
+ test -z "$(echo "; comment" | git -c core.commentchar=";" stripspace -s)"
+'
+
+test_expect_success '-c with single line' '
+ printf "# foo\n" >expect &&
+ printf "foo" | git stripspace -c >actual &&
+ test_cmp expect actual
+'
+
+test_expect_success '-c with single line followed by empty line' '
+ printf "# foo\n#\n" >expect &&
+ printf "foo\n\n" | git stripspace -c >actual &&
+ test_cmp expect actual
+'
+
+test_expect_success '-c with newline only' '
+ printf "#\n" >expect &&
+ printf "\n" | git stripspace -c >actual &&
+ test_cmp expect actual
+'
+
+test_expect_success '--comment-lines with single line' '
+ printf "# foo\n" >expect &&
+ printf "foo" | git stripspace -c >actual &&
+ test_cmp expect actual
+'
+
+test_expect_success '-c with changed comment char' '
+ printf "; foo\n" >expect &&
+ printf "foo" | git -c core.commentchar=";" stripspace -c >actual &&
+ test_cmp expect actual
+'
+
test_done