Allow abbreviations in the first refspec to be merged

diff --git a/t/t7400-submodule-basic.sh b/t/t7400-submodule-basic.sh
index 5e91db64e95d25049e298f37a2dadb436af8c8d0..4fe3a41f07f2f05865b219ff00afaa5786c679d5 100755 (executable)
--- a/t/t7400-submodule-basic.sh
+++ b/t/t7400-submodule-basic.sh
@@ -21,6 +21,10 @@ subcommands of git-submodule.
 #  -add an entry to .gitmodules for submodule 'example'
 #
 test_expect_success 'Prepare submodule testing' '
+       : > t &&
+       git-add t &&
+       git-commit -m "initial commit" &&
+       git branch initial HEAD &&
        mkdir lib &&
        cd lib &&
        git init &&
@@ -148,6 +152,10 @@ test_expect_success 'the --cached sha1 should be rev1' '
        git-submodule --cached status | grep "^+$rev1"
 '
 
+test_expect_success 'git diff should report the SHA1 of the new submodule commit' '
+       git-diff | grep "^+Subproject commit $rev2"
+'
+
 test_expect_success 'update should checkout rev1' '
        git-submodule update &&
        head=$(cd lib && git rev-parse HEAD) &&
@@ -166,4 +174,26 @@ test_expect_success 'status should be "up-to-date" after update' '
        git-submodule status | grep "^ $rev1"
 '
 
+test_expect_success 'checkout superproject with subproject already present' '
+       git-checkout initial &&
+       git-checkout master
+'
+
+test_expect_success 'apply submodule diff' '
+       git branch second &&
+       (
+               cd lib &&
+               echo s >s &&
+               git add s &&
+               git commit -m "change subproject"
+       ) &&
+       git update-index --add lib &&
+       git-commit -m "change lib" &&
+       git-format-patch -1 --stdout >P.diff &&
+       git checkout second &&
+       git apply --index P.diff &&
+       D=$(git diff --cached master) &&
+       test -z "$D"
+'
+
 test_done