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t5520: test work tree fast-forward when fetch updates head

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Since b10ac50 (Fix pulling into the same branch., 2005-08-25), git-pull,
upon detecting that git-fetch updated the current head, will
fast-forward the working tree to the updated head commit.

Implement tests to ensure that the fast-forward occurs in such a case,
as well as to ensure that the user-friendly advice is printed upon
failure.

Signed-off-by: Paul Tan <pyokagan@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
This commit is contained in:
Paul Tan 2015-05-29 19:44:41 +08:00 committed by Junio C Hamano
parent 05438afca7
commit 9f992262fb
1 changed files with 21 additions and 0 deletions
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21
t/t5520-pull.sh
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@ -183,6 +183,27 @@ test_expect_success 'fail if the index has unresolved entries' '
test_cmp expected file
'
test_expect_success 'fast-forwards working tree if branch head is updated' '
git checkout -b third second^ &&
test_when_finished "git checkout -f copy && git branch -D third" &&
test "$(cat file)" = file &&
git pull . second:third 2>err &&
test_i18ngrep "fetch updated the current branch head" err &&
test "$(cat file)" = modified &&
test "$(git rev-parse third)" = "$(git rev-parse second)"
'
test_expect_success 'fast-forward fails with conflicting work tree' '
git checkout -b third second^ &&
test_when_finished "git checkout -f copy && git branch -D third" &&
test "$(cat file)" = file &&
echo conflict >file &&
test_must_fail git pull . second:third 2>err &&
test_i18ngrep "Cannot fast-forward your working tree" err &&
test "$(cat file)" = conflict &&
test "$(git rev-parse third)" = "$(git rev-parse second)"
'
test_expect_success '--rebase' '
git branch to-rebase &&
echo modified again > file &&