mingw: fix mingw_open_append to work with named pipes

diff --git a/t/t6050-replace.sh b/t/t6050-replace.sh
index c630aba657e9c78b6dee4a72be34ed3bd03c01ee..aa3e24963967ba4be2394ceeab26f8317fb31b4b 100755 (executable)
--- a/t/t6050-replace.sh
+++ b/t/t6050-replace.sh
@@ -4,8 +4,6 @@
 #
 test_description='Tests replace refs functionality'
 
-exec </dev/null
-
 . ./test-lib.sh
 . "$TEST_DIRECTORY/lib-gpg.sh"
 
@@ -444,4 +442,32 @@ test_expect_success GPG '--graft on a commit with a mergetag' '
        git replace -d $HASH10
 '
 
+test_expect_success '--convert-graft-file' '
+       git checkout -b with-graft-file &&
+       test_commit root2 &&
+       git reset --hard root2^ &&
+       test_commit root1 &&
+       test_commit after-root1 &&
+       test_tick &&
+       git merge -m merge-root2 root2 &&
+
+       : add and convert graft file &&
+       printf "%s\n%s %s\n\n# comment\n%s\n" \
+               $(git rev-parse HEAD^^ HEAD^ HEAD^^ HEAD^2) \
+               >.git/info/grafts &&
+       git replace --convert-graft-file &&
+       test_path_is_missing .git/info/grafts &&
+
+       : verify that the history is now "grafted" &&
+       git rev-list HEAD >out &&
+       test_line_count = 4 out &&
+
+       : create invalid graft file and verify that it is not deleted &&
+       test_when_finished "rm -f .git/info/grafts" &&
+       echo $EMPTY_BLOB $EMPTY_TREE >.git/info/grafts &&
+       test_must_fail git replace --convert-graft-file 2>err &&
+       test_i18ngrep "$EMPTY_BLOB $EMPTY_TREE" err &&
+       test_i18ngrep "$EMPTY_BLOB $EMPTY_TREE" .git/info/grafts
+'
+
 test_done