t3200: verify "branch --list" sanity when rebasing from detached HEAD

"git branch --list" shows an in-progress rebase as:

* (no branch, rebasing <branch>)
master
...

However, if the rebase is started from a detached HEAD, then there is no
<branch>, and it would attempt to print a NULL pointer. The previous
commit fixed this problem, so add a test to verify that the output is
sane in this situation.

Signed-off-by: Eric Sunshine <sunshine@sunshineco.com>
Signed-off-by: Kaartic Sivaraam <kaartic.sivaraam@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

diff --git a/t/t3200-branch.sh b/t/t3200-branch.sh
index 6c0b7ea4addc8f1569b1b85f58dd3072fb863f33..c0ef946811dd534dfa5e704c992b6ab1fab82c35 100755 (executable)
--- a/t/t3200-branch.sh
+++ b/t/t3200-branch.sh
@@ -6,6 +6,7 @@
 test_description='git branch assorted tests'
 
 . ./test-lib.sh
+. "$TEST_DIRECTORY"/lib-rebase.sh
 
 test_expect_success 'prepare a trivial repository' '
        echo Hello >A &&
@@ -1246,6 +1247,29 @@ test_expect_success '--merged is incompatible with --no-merged' '
        test_must_fail git branch --merged HEAD --no-merged HEAD
 '
 
+test_expect_success '--list during rebase' '
+       test_when_finished "reset_rebase" &&
+       git checkout master &&
+       FAKE_LINES="1 edit 2" &&
+       export FAKE_LINES &&
+       set_fake_editor &&
+       git rebase -i HEAD~2 &&
+       git branch --list >actual &&
+       test_i18ngrep "rebasing master" actual
+'
+
+test_expect_success '--list during rebase from detached HEAD' '
+       test_when_finished "reset_rebase && git checkout master" &&
+       git checkout master^0 &&
+       oid=$(git rev-parse --short HEAD) &&
+       FAKE_LINES="1 edit 2" &&
+       export FAKE_LINES &&
+       set_fake_editor &&
+       git rebase -i HEAD~2 &&
+       git branch --list >actual &&
+       test_i18ngrep "rebasing detached HEAD $oid" actual
+'
+
 test_expect_success 'tracking with unexpected .fetch refspec' '
        rm -rf a b c d &&
        git init a &&