tag.c: use 'ref-filter' data structures

diff --git a/t/t1511-rev-parse-caret.sh b/t/t1511-rev-parse-caret.sh
index e043cb7c64958ede89eb640f121d2daabf5f9503..15973f20945769fd7661cd4b203e96032495a60e 100755 (executable)
--- a/t/t1511-rev-parse-caret.sh
+++ b/t/t1511-rev-parse-caret.sh
@@ -6,7 +6,7 @@ test_description='tests for ref^{stuff}'
 
 test_expect_success 'setup' '
        echo blob >a-blob &&
-       git tag -a -m blob blob-tag `git hash-object -w a-blob`
+       git tag -a -m blob blob-tag `git hash-object -w a-blob` &&
        mkdir a-tree &&
        echo moreblobs >a-tree/another-blob &&
        git add . &&
@@ -54,6 +54,13 @@ test_expect_success 'ref^{tree}' '
        test_must_fail git rev-parse blob-tag^{tree}
 '
 
+test_expect_success 'ref^{tag}' '
+       test_must_fail git rev-parse HEAD^{tag} &&
+       git rev-parse commit-tag >expected &&
+       git rev-parse commit-tag^{tag} >actual &&
+       test_cmp expected actual
+'
+
 test_expect_success 'ref^{/.}' '
        git rev-parse master >expected &&
        git rev-parse master^{/.} >actual &&