refs: document how current_ref is used

diff --git a/t/t0003-attributes.sh b/t/t0003-attributes.sh
index 51f3045ba4bde549b06ea669b1877f0e2db7c401..1035a14b37203202a5476f65d07f9bc505bfb52c 100755 (executable)
--- a/t/t0003-attributes.sh
+++ b/t/t0003-attributes.sh
@@ -123,16 +123,6 @@ test_expect_success 'attribute matching is case insensitive when core.ignorecase
 
 '
 
-test_expect_success 'check whether FS is case-insensitive' '
-       mkdir junk &&
-       echo good >junk/CamelCase &&
-       echo bad >junk/camelcase &&
-       if test "$(cat junk/CamelCase)" != good
-       then
-               test_set_prereq CASE_INSENSITIVE_FS
-       fi
-'
-
 test_expect_success CASE_INSENSITIVE_FS 'additional case insensitivity tests' '
        test_must_fail attr_check a/B/D/g "a/b/d/*" "-c core.ignorecase=0" &&
        test_must_fail attr_check A/B/D/NO "a/b/d/*" "-c core.ignorecase=0" &&
@@ -206,6 +196,17 @@ test_expect_success 'root subdir attribute test' '
        attr_check subdir/a/i unspecified
 '
 
+test_expect_success 'negative patterns' '
+       echo "!f test=bar" >.gitattributes &&
+       git check-attr test -- '"'"'!f'"'"' 2>errors &&
+       test_i18ngrep "Negative patterns are ignored" errors
+'
+
+test_expect_success 'patterns starting with exclamation' '
+       echo "\!f test=foo" >.gitattributes &&
+       attr_check "!f" foo
+'
+
 test_expect_success 'setup bare' '
        git clone --bare . bare.git &&
        cd bare.git