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The commit-graph feature is tested in isolation by t5318-commit-graph.sh and t6600-test-reach.sh, but there are many more interesting scenarios involving commit walks. Many of these scenarios are covered by the existing test suite, but we need to maintain coverage when the optional commit-graph structure is not present. To allow running the full test suite with the commit-graph present, add a new test environment variable, GIT_TEST_COMMIT_GRAPH. Similar to GIT_TEST_SPLIT_INDEX, this variable makes every Git command try to load the commit-graph when parsing commits, and writes the commit-graph file after every 'git commit' command. There are a few tests that rely on commits not existing in pack-files to trigger important events, so manually set GIT_TEST_COMMIT_GRAPH to false for the necessary commands. There is one test in t6024-recursive-merge.sh that relies on the merge-base algorithm picking one of two ambiguous merge-bases, and the commit-graph feature changes which merge-base is picked. Helped-by: Eric Sunshine <sunshine@sunshineco.com> Signed-off-by: Derrick Stolee <dstolee@microsoft.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
123 lines
2.9 KiB
Bash
Executable File
123 lines
2.9 KiB
Bash
Executable File
#!/bin/sh
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test_description='Test merge without common ancestors'
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. ./test-lib.sh
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# This scenario is based on a real-world repository of Shawn Pearce.
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# 1 - A - D - F
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# \ X /
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# B X
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# X \
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# 2 - C - E - G
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GIT_COMMITTER_DATE="2006-12-12 23:28:00 +0100"
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export GIT_COMMITTER_DATE
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test_expect_success "setup tests" '
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echo 1 > a1 &&
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git add a1 &&
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GIT_AUTHOR_DATE="2006-12-12 23:00:00" git commit -m 1 a1 &&
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git checkout -b A master &&
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echo A > a1 &&
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GIT_AUTHOR_DATE="2006-12-12 23:00:01" git commit -m A a1 &&
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git checkout -b B master &&
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echo B > a1 &&
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GIT_AUTHOR_DATE="2006-12-12 23:00:02" git commit -m B a1 &&
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git checkout -b D A &&
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git rev-parse B > .git/MERGE_HEAD &&
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echo D > a1 &&
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git update-index a1 &&
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GIT_AUTHOR_DATE="2006-12-12 23:00:03" git commit -m D &&
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git symbolic-ref HEAD refs/heads/other &&
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echo 2 > a1 &&
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GIT_AUTHOR_DATE="2006-12-12 23:00:04" git commit -m 2 a1 &&
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git checkout -b C &&
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echo C > a1 &&
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GIT_AUTHOR_DATE="2006-12-12 23:00:05" git commit -m C a1 &&
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git checkout -b E C &&
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git rev-parse B > .git/MERGE_HEAD &&
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echo E > a1 &&
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git update-index a1 &&
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GIT_AUTHOR_DATE="2006-12-12 23:00:06" git commit -m E &&
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git checkout -b G E &&
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git rev-parse A > .git/MERGE_HEAD &&
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echo G > a1 &&
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git update-index a1 &&
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GIT_AUTHOR_DATE="2006-12-12 23:00:07" git commit -m G &&
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git checkout -b F D &&
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git rev-parse C > .git/MERGE_HEAD &&
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echo F > a1 &&
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git update-index a1 &&
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GIT_AUTHOR_DATE="2006-12-12 23:00:08" git commit -m F
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'
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test_expect_success 'combined merge conflicts' '
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test_must_fail env GIT_TEST_COMMIT_GRAPH=0 git merge -m final G
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'
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cat > expect << EOF
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<<<<<<< HEAD
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F
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=======
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G
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>>>>>>> G
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EOF
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test_expect_success "result contains a conflict" "test_cmp expect a1"
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git ls-files --stage > out
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cat > expect << EOF
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100644 ec3fe2a791706733f2d8fa7ad45d9a9672031f5e 1 a1
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100644 cf84443e49e1b366fac938711ddf4be2d4d1d9e9 2 a1
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100644 fd7923529855d0b274795ae3349c5e0438333979 3 a1
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EOF
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test_expect_success "virtual trees were processed" "test_cmp expect out"
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test_expect_success 'refuse to merge binary files' '
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git reset --hard &&
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printf "\0" > binary-file &&
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git add binary-file &&
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git commit -m binary &&
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git checkout G &&
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printf "\0\0" > binary-file &&
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git add binary-file &&
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git commit -m binary2 &&
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test_must_fail git merge F > merge.out 2> merge.err &&
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grep "Cannot merge binary files: binary-file (HEAD vs. F)" merge.err
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'
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test_expect_success 'mark rename/delete as unmerged' '
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git reset --hard &&
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git checkout -b delete &&
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git rm a1 &&
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test_tick &&
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git commit -m delete &&
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git checkout -b rename HEAD^ &&
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git mv a1 a2 &&
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test_tick &&
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git commit -m rename &&
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test_must_fail git merge delete &&
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test 1 = $(git ls-files --unmerged | wc -l) &&
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git rev-parse --verify :2:a2 &&
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test_must_fail git rev-parse --verify :3:a2 &&
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git checkout -f delete &&
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test_must_fail git merge rename &&
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test 1 = $(git ls-files --unmerged | wc -l) &&
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test_must_fail git rev-parse --verify :2:a2 &&
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git rev-parse --verify :3:a2
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'
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test_done
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