[PATCH 15/30] merge-tree tests: test for the mode comparison in same_entry()
From: Ævar Arnfjörð Bjarmason <hidden>
Date: 2021-03-08 15:08:16
Subsystem:
the rest · Maintainer:
Linus Torvalds
Add a test to stress the "a->mode == b->mode" comparison in merge-tree.c's same_entry(). That code was initially added by Linus in 33deb63a36f (Add "merge-tree" helper program. Maybe it's retarded, maybe it's helpful., 2005-04-14), and then again in its current form in 492e0759bfe (Handling large files with GIT, 2006-02-14). However, nothing was testing that we handled this case correctly. Simply removing the mode comparison left all tests passing, but as seen here it's important that we don't think a path with the same content but different modes is the same_entry(). The rest of this series will touch code that's relevant to this, but won't change its behavior. This test is just something I came up with in testing whether the mode test in same_entry() was needed at all. Signed-off-by: Ævar Arnfjörð Bjarmason <redacted> --- t/t4300-merge-tree.sh | 44 +++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 44 insertions(+)
diff --git a/t/t4300-merge-tree.sh b/t/t4300-merge-tree.sh
index e59601e5fe9..f783d784d02 100755
--- a/t/t4300-merge-tree.sh
+++ b/t/t4300-merge-tree.sh@@ -40,6 +40,25 @@ test_expect_success 'file add A, B (same)' ' test_must_be_empty actual ' +test_expect_success 'file add A, B (different mode)' ' + git reset --hard initial && + test_commit "add-a-b-same-diff-mode-A" "ONE" "AAA" && + git reset --hard initial && + echo AAA >ONE && + test_chmod +x ONE && + test_tick && + git commit -m"add-a-b-same-diff-mode-B" && + git tag "add-a-b-same-diff-mode-B" HEAD && + git merge-tree initial add-a-b-same-diff-mode-A add-a-b-same-diff-mode-B >actual && + cat >expected <<EXPECTED && +added in both + our 100644 $(git rev-parse add-a-b-same-diff-mode-A:ONE) ONE + their 100755 $(git rev-parse add-a-b-same-diff-mode-B:ONE) ONE +EXPECTED + + test_cmp expected actual +' + test_expect_success 'file add A, B (different)' ' git reset --hard initial && test_commit "add-a-b-diff-A" "ONE" "AAA" &&
@@ -61,6 +80,31 @@ EXPECTED test_cmp expected actual ' +test_expect_success 'file add A, B (different and different mode)' ' + git reset --hard initial && + test_commit "add-a-b-diff-diff-mode-A" "ONE" "AAA" && + git reset --hard initial && + echo BBB >ONE && + test_chmod +x ONE && + test_tick && + git commit -m"add-a-b-diff-diff-mode-B" && + git tag "add-a-b-diff-diff-mode-B" && + git merge-tree initial add-a-b-diff-diff-mode-A add-a-b-diff-diff-mode-B >actual && + cat >expected <<EXPECTED && +added in both + our 100644 $(git rev-parse add-a-b-diff-diff-mode-A:ONE) ONE + their 100755 $(git rev-parse add-a-b-diff-diff-mode-B:ONE) ONE +@@ -1 +1,5 @@ ++<<<<<<< .our + AAA ++======= ++BBB ++>>>>>>> .their +EXPECTED + + test_cmp expected actual +' + test_expect_success 'file change A, !B' ' git reset --hard initial && test_commit "change-a-not-b" "initial-file" "BBB" &&
--
2.31.0.rc0.126.g04f22c5b82