From c99c59e68f170197c8acb96573df0ec7079f38fd Mon Sep 17 00:00:00 2001 From: Jonathan Tan Date: Tue, 1 Aug 2023 11:41:40 -0700 Subject: [PATCH] t4216: test changed path filters with high bit paths Subsequent commits will teach Git another version of changed path filter that has different behavior with paths that contain at least one character with its high bit set, so test the existing behavior as a baseline. Signed-off-by: Jonathan Tan Signed-off-by: Junio C Hamano --- t/t4216-log-bloom.sh | 43 +++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 43 insertions(+) diff --git a/t/t4216-log-bloom.sh b/t/t4216-log-bloom.sh index fa9d32facf..2d4a3fefee 100755 --- a/t/t4216-log-bloom.sh +++ b/t/t4216-log-bloom.sh @@ -404,4 +404,47 @@ test_expect_success 'Bloom generation backfills empty commits' ' ) ' +get_first_changed_path_filter () { + test-tool read-graph bloom-filters >filters.dat && + head -n 1 filters.dat +} + +# chosen to be the same under all Unicode normalization forms +CENT=$(printf "\302\242") + +test_expect_success 'set up repo with high bit path, version 1 changed-path' ' + git init highbit1 && + test_commit -C highbit1 c1 "$CENT" && + git -C highbit1 commit-graph write --reachable --changed-paths +' + +test_expect_success 'setup check value of version 1 changed-path' ' + ( + cd highbit1 && + echo "52a9" >expect && + get_first_changed_path_filter >actual && + test_cmp expect actual + ) +' + +# expect will not match actual if char is unsigned by default. Write the test +# in this way, so that a user running this test script can still see if the two +# files match. (It will appear as an ordinary success if they match, and a skip +# if not.) +if test_cmp highbit1/expect highbit1/actual +then + test_set_prereq SIGNED_CHAR_BY_DEFAULT +fi +test_expect_success SIGNED_CHAR_BY_DEFAULT 'check value of version 1 changed-path' ' + # Only the prereq matters for this test. + true +' + +test_expect_success 'version 1 changed-path used when version 1 requested' ' + ( + cd highbit1 && + test_bloom_filters_used "-- $CENT" + ) +' + test_done