difftool: fallback on merge.guitool

diff --git a/t/t6120-describe.sh b/t/t6120-describe.sh
index 1c0e8659d97c0792ce5761cf0704aa7f061575e0..d639d946965547c86708701bfde276649c568a15 100755 (executable)
--- a/t/t6120-describe.sh
+++ b/t/t6120-describe.sh
@@ -121,10 +121,9 @@ test_expect_success 'describe --contains defaults to HEAD without commit-ish' '
        test_cmp expect actual
 '
 
-: >err.expect
-check_describe A --all A^0
+check_describe tags/A --all A^0
 test_expect_success 'no warning was displayed for A' '
-       test_cmp err.expect err.actual
+       test_must_be_empty err.actual
 '
 
 test_expect_success 'rename tag A to Q locally' '
@@ -304,12 +303,46 @@ test_expect_success 'describe chokes on severely broken submodules' '
        mv .git/modules/sub1/ .git/modules/sub_moved &&
        test_must_fail git describe --dirty
 '
-test_expect_success 'describe ignoring a borken submodule' '
+test_expect_success 'describe ignoring a broken submodule' '
        git describe --broken >out &&
        test_when_finished "mv .git/modules/sub_moved .git/modules/sub1" &&
        grep broken out
 '
 
+test_expect_success 'describe a blob at a directly tagged commit' '
+       echo "make it a unique blob" >file &&
+       git add file && git commit -m "content in file" &&
+       git tag -a -m "latest annotated tag" unique-file &&
+       git describe HEAD:file >actual &&
+       echo "unique-file:file" >expect &&
+       test_cmp expect actual
+'
+
+test_expect_success 'describe a blob with its first introduction' '
+       git commit --allow-empty -m "empty commit" &&
+       git rm file &&
+       git commit -m "delete blob" &&
+       git revert HEAD &&
+       git commit --allow-empty -m "empty commit" &&
+       git describe HEAD:file >actual &&
+       echo "unique-file:file" >expect &&
+       test_cmp expect actual
+'
+
+test_expect_success 'describe directly tagged blob' '
+       git tag test-blob unique-file:file &&
+       git describe test-blob >actual &&
+       echo "unique-file:file" >expect &&
+       # suboptimal: we rather want to see "test-blob"
+       test_cmp expect actual
+'
+
+test_expect_success 'describe tag object' '
+       git tag test-blob-1 -a -m msg unique-file:file &&
+       test_must_fail git describe test-blob-1 2>actual &&
+       test_i18ngrep "fatal: test-blob-1 is neither a commit nor blob" actual
+'
+
 test_expect_failure ULIMIT_STACK_SIZE 'name-rev works in a deep repo' '
        i=1 &&
        while test $i -lt 8000
@@ -340,4 +373,16 @@ test_expect_success ULIMIT_STACK_SIZE 'describe works in a deep repo' '
        test_cmp expect actual
 '
 
+check_describe tags/A --all A
+check_describe tags/c --all c
+check_describe heads/branch_A --all --match='branch_*' branch_A
+
+test_expect_success 'describe complains about tree object' '
+       test_must_fail git describe HEAD^{tree}
+'
+
+test_expect_success 'describe complains about missing object' '
+       test_must_fail git describe $ZERO_OID
+'
+
 test_done