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t3200: add test for single parameter passed to -m option

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Add a test for the case when only one parameter is passed to '-m'
(move/rename) option.

For example - if 'git branch -m bbb' is run while checked out on aaa
branch, it should rename the currently checked out branch to bbb.
There was no test for this particular case with only one parameter
for -m option. However, there's one similar test case for -M option.

Add test for making sure HEAD points to the bbb (new branch name). Also
add a test for making sure the reflog that is moved to 'bbb' retains
entries created for the currently checked out branch. Note that since
the topmost entry on reflog for bbb will be about branch creation, we
compare bbb@{1} (instead of bbb@{0}) with aaa@{0} to make sure the
reflog for bbb retains entries from aaa.

Signed-off-by: Sahil Dua <sahildua2305@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
This commit is contained in:
Sahil Dua 2017-06-13 10:47:22 +00:00 committed by Junio C Hamano
parent 76339527cc
commit bb8efa1772
1 changed files with 17 additions and 0 deletions
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17
t/t3200-branch.sh
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@ -100,6 +100,23 @@ test_expect_success 'git branch -m n/n n should work' '
git reflog exists refs/heads/n
'
# The topmost entry in reflog for branch bbb is about branch creation.
# Hence, we compare bbb@{1} (instead of bbb@{0}) with aaa@{0}.
test_expect_success 'git branch -m bbb should rename checked out branch' '
test_when_finished git branch -D bbb &&
test_when_finished git checkout master &&
git checkout -b aaa &&
git commit --allow-empty -m "a new commit" &&
git rev-parse aaa@{0} >expect &&
git branch -m bbb &&
git rev-parse bbb@{1} >actual &&
test_cmp expect actual &&
git symbolic-ref HEAD >actual &&
echo refs/heads/bbb >expect &&
test_cmp expect actual
'
test_expect_success 'git branch -m o/o o should fail when o/p exists' '
git branch o/o &&
git branch o/p &&