git update-ref -d refs/heads/invalid
'
+new=nothing
+test_expect_success 'email without @ is okay' '
+ git cat-file commit HEAD >basis &&
+ sed "s/@/AT/" basis >okay &&
+ new=$(git hash-object -t commit -w --stdin <okay) &&
+ echo "$new" &&
+ git update-ref refs/heads/bogus "$new" &&
+ git fsck 2>out &&
+ cat out &&
+ ! grep "error in commit $new" out
+'
+git update-ref -d refs/heads/bogus
+rm -f ".git/objects/$new"
+
+new=nothing
+test_expect_success 'email with embedded > is not okay' '
+ git cat-file commit HEAD >basis &&
+ sed "s/@[a-z]/&>/" basis >bad-email &&
+ new=$(git hash-object -t commit -w --stdin <bad-email) &&
+ echo "$new" &&
+ git update-ref refs/heads/bogus "$new" &&
+ git fsck 2>out &&
+ cat out &&
+ grep "error in commit $new" out
+'
+git update-ref -d refs/heads/bogus
+rm -f ".git/objects/$new"
+
cat > invalid-tag <<EOF
object ffffffffffffffffffffffffffffffffffffffff
type commit