t3210: add some tests of bogus packed-refs file contents

diff --git a/t/t3200-branch.sh b/t/t3200-branch.sh
index f286f39b45995a047e3a5882feec390a9ec818cd..fe62e7c775da6a8fc191ed1dc6634d5285ddbc4b 100755 (executable)
--- a/t/t3200-branch.sh
+++ b/t/t3200-branch.sh
@@ -213,6 +213,31 @@ test_expect_success 'git branch --list -d t should fail' '
        test_path_is_missing .git/refs/heads/t
 '
 
+test_expect_success 'git branch --list -v with --abbrev' '
+       test_when_finished "git branch -D t" &&
+       git branch t &&
+       git branch -v --list t >actual.default &&
+       git branch -v --list --abbrev t >actual.abbrev &&
+       test_cmp actual.default actual.abbrev &&
+
+       git branch -v --list --no-abbrev t >actual.noabbrev &&
+       git branch -v --list --abbrev=0 t >actual.0abbrev &&
+       test_cmp actual.noabbrev actual.0abbrev &&
+
+       git branch -v --list --abbrev=36 t >actual.36abbrev &&
+       # how many hexdigits are used?
+       read name objdefault rest <actual.abbrev &&
+       read name obj36 rest <actual.36abbrev &&
+       objfull=$(git rev-parse --verify t) &&
+
+       # are we really getting abbreviations?
+       test "$obj36" != "$objdefault" &&
+       expr "$obj36" : "$objdefault" >/dev/null &&
+       test "$objfull" != "$obj36" &&
+       expr "$objfull" : "$obj36" >/dev/null
+
+'
+
 test_expect_success 'git branch --column' '
        COLUMNS=81 git branch --column=column >actual &&
        cat >expected <<\EOF &&