apply --recount: allow "no-op hunks"

diff --git a/t/t5500-fetch-pack.sh b/t/t5500-fetch-pack.sh
index 07fcea04741afb362ec728a17eb1eaa283463b5f..1b5a4a6d380f37b0e616e5ca6c5fd5b732e6383d 100755 (executable)
--- a/t/t5500-fetch-pack.sh
+++ b/t/t5500-fetch-pack.sh
@@ -259,7 +259,7 @@ test_expect_success 'clone shallow object count' '
 test_expect_success 'pull in shallow repo with missing merge base' '
        (
                cd shallow &&
-               git fetch --depth 4 .. A
+               git fetch --depth 4 .. A &&
                test_must_fail git merge --allow-unrelated-histories FETCH_HEAD
        )
 '
@@ -403,7 +403,7 @@ test_expect_success 'fetch creating new shallow root' '
                git fetch --depth=1 --progress 2>actual &&
                # This should fetch only the empty commit, no tree or
                # blob objects
-               grep "remote: Total 1" actual
+               test_i18ngrep "remote: Total 1" actual
        )
 '
 
@@ -814,6 +814,39 @@ test_expect_success 'fetching deepen' '
        )
 '
 
+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 &&