git-status: do not be totally useless in a read-only repository.

diff --git a/t/t9300-fast-import.sh b/t/t9300-fast-import.sh
index 8d28211294af7e2c7e6de501d4f54f124b869fc2..970d683650f5ee6b99a07ff10063710292b28ed1 100755 (executable)
--- a/t/t9300-fast-import.sh
+++ b/t/t9300-fast-import.sh
@@ -433,4 +433,64 @@ test_expect_success \
        'sed -e s/pack-.*pack/pack-.pack/ edges.list >actual &&
         diff -u expect actual'
 
+###
+### series J
+###
+
+cat >input <<INPUT_END
+commit refs/heads/J
+committer $GIT_COMMITTER_NAME <$GIT_COMMITTER_EMAIL> $GIT_COMMITTER_DATE
+data <<COMMIT
+create J
+COMMIT
+
+from refs/heads/branch
+
+reset refs/heads/J
+
+commit refs/heads/J
+committer $GIT_COMMITTER_NAME <$GIT_COMMITTER_EMAIL> $GIT_COMMITTER_DATE
+data <<COMMIT
+initialize J
+COMMIT
+
+INPUT_END
+test_expect_success \
+    'J: reset existing branch creates empty commit' \
+    'git-fast-import <input'
+test_expect_success \
+       'J: branch has 1 commit, empty tree' \
+       'test 1 = `git-rev-list J | wc -l` &&
+        test 0 = `git ls-tree J | wc -l`'
+
+###
+### series K
+###
+
+cat >input <<INPUT_END
+commit refs/heads/K
+committer $GIT_COMMITTER_NAME <$GIT_COMMITTER_EMAIL> $GIT_COMMITTER_DATE
+data <<COMMIT
+create K
+COMMIT
+
+from refs/heads/branch
+
+commit refs/heads/K
+committer $GIT_COMMITTER_NAME <$GIT_COMMITTER_EMAIL> $GIT_COMMITTER_DATE
+data <<COMMIT
+redo K
+COMMIT
+
+from refs/heads/branch^1
+
+INPUT_END
+test_expect_success \
+    'K: reinit branch with from' \
+    'git-fast-import <input'
+test_expect_success \
+    'K: verify K^1 = branch^1' \
+    'test `git-rev-parse --verify branch^1` \
+               = `git-rev-parse --verify K^1`'
+
 test_done