Commit 19a7fcb (allow pull --rebase on branch yet to be born,
2009-08-11) special cases git-pull on an unborn branch in a different
code path such that git-pull --rebase is still valid even though there
is no HEAD yet.

This code path still ensures that there is no index in order not to lose
any staged changes. Implement a test to ensure that this check is
triggered.

Signed-off-by: Paul Tan <[email protected]>
---

Notes:
    
    v5:
    
    * Move test_i18ngrep into subshell

 t/t5520-pull.sh | 15 +++++++++++++++
 1 file changed, 15 insertions(+)

diff --git a/t/t5520-pull.sh b/t/t5520-pull.sh
index 90728e0..a04f55c 100755
--- a/t/t5520-pull.sh
+++ b/t/t5520-pull.sh
@@ -412,6 +412,21 @@ test_expect_success 'pull --rebase works on branch yet to 
be born' '
        test_cmp expect actual
 '
 
+test_expect_success 'pull --rebase fails on unborn branch with staged changes' 
'
+       test_when_finished "rm -rf empty_repo2" &&
+       git init empty_repo2 &&
+       (
+               cd empty_repo2 &&
+               echo staged-file >staged-file &&
+               git add staged-file &&
+               test "$(git ls-files)" = staged-file &&
+               test_must_fail git pull --rebase .. master 2>err &&
+               test "$(git ls-files)" = staged-file &&
+               test "$(git show :staged-file)" = staged-file &&
+               test_i18ngrep "unborn branch with changes added to the index" 
err
+       )
+'
+
 test_expect_success 'setup for detecting upstreamed changes' '
        mkdir src &&
        (cd src &&
-- 
2.1.4

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