)
'
+test_expect_success 'use ref advertisement to prune "have" lines sent' '
+ rm -rf server client &&
+ git init server &&
+ test_commit -C server both_have_1 &&
+ git -C server tag -d both_have_1 &&
+ test_commit -C server both_have_2 &&
+
+ git clone server client &&
+ test_commit -C server server_has &&
+ test_commit -C client client_has &&
+
+ # In both protocol v0 and v2, ensure that the parent of both_have_2 is
+ # not sent as a "have" line. The client should know that the server has
+ # both_have_2, so it only needs to inform the server that it has
+ # both_have_2, and the server can infer the rest.
+
+ rm -f trace &&
+ cp -r client clientv0 &&
+ GIT_TRACE_PACKET="$(pwd)/trace" git -C clientv0 \
+ fetch origin server_has both_have_2 &&
+ grep "have $(git -C client rev-parse client_has)" trace &&
+ grep "have $(git -C client rev-parse both_have_2)" trace &&
+ ! grep "have $(git -C client rev-parse both_have_2^)" trace &&
+
+ rm -f trace &&
+ cp -r client clientv2 &&
+ GIT_TRACE_PACKET="$(pwd)/trace" git -C clientv2 -c protocol.version=2 \
+ fetch origin server_has both_have_2 &&
+ grep "have $(git -C client rev-parse client_has)" trace &&
+ grep "have $(git -C client rev-parse both_have_2)" trace &&
+ ! grep "have $(git -C client rev-parse both_have_2^)" trace
+'
+
test_expect_success 'filtering by size' '
rm -rf server client &&
test_create_repo server &&