built-in rebase --autostash: leave the current branch alone if possible

diff --git a/t/t5520-pull.sh b/t/t5520-pull.sh
index 551844584fc7b8ff71667dd61fcba62889ded69f..68aa5f0340132e8d3fabfd85aa70f1cdfe755cf3 100755 (executable)
--- a/t/t5520-pull.sh
+++ b/t/t5520-pull.sh
@@ -255,6 +255,41 @@ test_expect_success '--rebase' '
        test new = "$(git show HEAD:file2)"
 '
 
+test_expect_success '--rebase fast forward' '
+       git reset --hard before-rebase &&
+       git checkout -b ff &&
+       echo another modification >file &&
+       git commit -m third file &&
+
+       git checkout to-rebase &&
+       git pull --rebase . ff &&
+       test "$(git rev-parse HEAD)" = "$(git rev-parse ff)" &&
+
+       # The above only validates the result.  Did we actually bypass rebase?
+       git reflog -1 >reflog.actual &&
+       sed "s/^[0-9a-f][0-9a-f]*/OBJID/" reflog.actual >reflog.fuzzy &&
+       echo "OBJID HEAD@{0}: pull --rebase . ff: Fast-forward" >reflog.expected &&
+       test_cmp reflog.expected reflog.fuzzy
+'
+
+test_expect_success '--rebase --autostash fast forward' '
+       test_when_finished "
+               git reset --hard
+               git checkout to-rebase
+               git branch -D to-rebase-ff
+               git branch -D behind" &&
+       git branch behind &&
+       git checkout -b to-rebase-ff &&
+       echo another modification >>file &&
+       git add file &&
+       git commit -m mod &&
+
+       git checkout behind &&
+       echo dirty >file &&
+       git pull --rebase --autostash . to-rebase-ff &&
+       test "$(git rev-parse HEAD)" = "$(git rev-parse to-rebase-ff)"
+'
+
 test_expect_success '--rebase with conflicts shows advice' '
        test_when_finished "git rebase --abort; git checkout -f to-rebase" &&
        git checkout -b seq &&
@@ -270,7 +305,7 @@ test_expect_success '--rebase with conflicts shows advice' '
        test_tick &&
        git commit -m "Create conflict" seq.txt &&
        test_must_fail git pull --rebase . seq 2>err >out &&
-       test_i18ngrep "When you have resolved this problem" out
+       test_i18ngrep "Resolve all conflicts manually" out
 '
 
 test_expect_success 'failed --rebase shows advice' '
@@ -284,7 +319,7 @@ test_expect_success 'failed --rebase shows advice' '
        git checkout -f -b fails-to-rebase HEAD^ &&
        test_commit v2-without-cr file "2" file2-lf &&
        test_must_fail git pull --rebase . diverging 2>err >out &&
-       test_i18ngrep "When you have resolved this problem" out
+       test_i18ngrep "Resolve all conflicts manually" out
 '
 
 test_expect_success '--rebase fails with multiple branches' '
@@ -583,6 +618,18 @@ test_expect_success 'pull --rebase fails on unborn branch with staged changes' '
        )
 '
 
+test_expect_success 'pull --rebase fails on corrupt HEAD' '
+       test_when_finished "rm -rf corrupt" &&
+       git init corrupt &&
+       (
+               cd corrupt &&
+               test_commit one &&
+               obj=$(git rev-parse --verify HEAD | sed "s#^..#&/#") &&
+               rm -f .git/objects/$obj &&
+               test_must_fail git pull --rebase
+       )
+'
+
 test_expect_success 'setup for detecting upstreamed changes' '
        mkdir src &&
        (cd src &&