grep "error in commit $new" out
'
+# date is 2^64 + 1
+test_expect_success 'integer overflow in timestamps is reported' '
+ git cat-file commit HEAD >basis &&
+ sed "s/^\\(author .*>\\) [0-9]*/\\1 18446744073709551617/" \
+ <basis >bad-timestamp &&
+ new=$(git hash-object -t commit -w --stdin <bad-timestamp) &&
+ test_when_finished "remove_object $new" &&
+ git update-ref refs/heads/bogus "$new" &&
+ test_when_finished "git update-ref -d refs/heads/bogus" &&
+ git fsck 2>out &&
+ cat out &&
+ grep "error in commit $new.*integer overflow" out
+'
+
test_expect_success 'tag pointing to nonexistent' '
cat >invalid-tag <<-\EOF &&
object ffffffffffffffffffffffffffffffffffffffff