311 lines
7.4 KiB
Bash
Executable File
311 lines
7.4 KiB
Bash
Executable File
#!/bin/sh
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test_description="merges with unrelated index changes"
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. ./test-lib.sh
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# Testcase for some simple merges
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# A
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# o-------o B
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# \
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# \-----o C
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# \
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# \---o D
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# \
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# \-o E
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# \
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# o F
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# Commit A: some file a
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# Commit B: adds file b, modifies end of a
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# Commit C: adds file c
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# Commit D: adds file d, modifies beginning of a
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# Commit E: renames a->subdir/a, adds subdir/e
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# Commit F: empty commit
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test_expect_success 'setup trivial merges' '
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test_seq 1 10 >a &&
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git add a &&
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test_tick && git commit -m A &&
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git branch A &&
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git branch B &&
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git branch C &&
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git branch D &&
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git branch E &&
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git branch F &&
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git checkout B &&
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echo b >b &&
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echo 11 >>a &&
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git add a b &&
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test_tick && git commit -m B &&
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git checkout C &&
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echo c >c &&
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git add c &&
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test_tick && git commit -m C &&
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git checkout D &&
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test_seq 2 10 >a &&
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echo d >d &&
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git add a d &&
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test_tick && git commit -m D &&
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git checkout E &&
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mkdir subdir &&
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git mv a subdir/a &&
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echo e >subdir/e &&
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git add subdir &&
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test_tick && git commit -m E &&
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git checkout F &&
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test_tick && git commit --allow-empty -m F
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'
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test_expect_success 'ff update' '
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git reset --hard &&
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git checkout A^0 &&
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touch random_file && git add random_file &&
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git merge E^0 &&
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test_must_fail git rev-parse HEAD:random_file &&
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test "$(git diff --name-only --cached E)" = "random_file" &&
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test_path_is_file random_file &&
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git rev-parse --verify :random_file
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'
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test_expect_success 'ff update, important file modified' '
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git reset --hard &&
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git checkout A^0 &&
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mkdir subdir &&
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touch subdir/e &&
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git add subdir/e &&
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test_must_fail git merge E^0 &&
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test_path_is_file subdir/e &&
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git rev-parse --verify :subdir/e &&
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test_path_is_missing .git/MERGE_HEAD
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'
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test_expect_success 'resolve, trivial' '
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git reset --hard &&
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git checkout B^0 &&
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touch random_file && git add random_file &&
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test_must_fail git merge -s resolve C^0 &&
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test_path_is_file random_file &&
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git rev-parse --verify :random_file &&
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test_path_is_missing .git/MERGE_HEAD
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'
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test_expect_success 'resolve, non-trivial' '
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git reset --hard &&
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git checkout B^0 &&
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touch random_file && git add random_file &&
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test_must_fail git merge -s resolve D^0 &&
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test_path_is_file random_file &&
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git rev-parse --verify :random_file &&
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test_path_is_missing .git/MERGE_HEAD
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'
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test_expect_success 'resolve, trivial, related file removed' '
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git reset --hard &&
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git checkout B^0 &&
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git rm a &&
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test_path_is_missing a &&
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test_must_fail git merge -s resolve C^0 &&
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test_path_is_missing a &&
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test_path_is_missing .git/MERGE_HEAD
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'
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test_expect_success 'resolve, non-trivial, related file removed' '
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git reset --hard &&
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git checkout B^0 &&
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git rm a &&
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test_path_is_missing a &&
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# We also ask for recursive in order to turn off the "allow_trivial"
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# setting in builtin/merge.c, and ensure that resolve really does
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# correctly fail the merge (I guess this also tests that recursive
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# correctly fails the merge, but the main thing we are attempting
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# to test here is resolve and are just using the side effect of
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# adding recursive to ensure that resolve is actually tested rather
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# than the trivial merge codepath)
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test_must_fail git merge -s resolve -s recursive D^0 &&
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test_path_is_missing a &&
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test_path_is_missing .git/MERGE_HEAD
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'
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test_expect_success 'recursive' '
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git reset --hard &&
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git checkout B^0 &&
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touch random_file && git add random_file &&
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test_must_fail git merge -s recursive C^0 &&
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test_path_is_file random_file &&
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git rev-parse --verify :random_file &&
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test_path_is_missing .git/MERGE_HEAD
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'
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test_expect_success 'recursive, when merge branch matches merge base' '
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git reset --hard &&
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git checkout B^0 &&
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touch random_file && git add random_file &&
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test_must_fail git merge -s recursive F^0 &&
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test_path_is_missing .git/MERGE_HEAD
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'
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test_expect_success 'merge-recursive, when index==head but head!=HEAD' '
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git reset --hard &&
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git checkout C^0 &&
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# Make index match B
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git diff C B -- | git apply --cached &&
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test_when_finished "git clean -fd" && # Do not leave untracked around
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# Merge B & F, with B as "head"
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git merge-recursive A -- B F > out &&
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test_grep "Already up to date" out
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'
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test_expect_success 'recursive, when file has staged changes not matching HEAD nor what a merge would give' '
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git reset --hard &&
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git checkout B^0 &&
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mkdir subdir &&
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test_seq 1 10 >subdir/a &&
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git add subdir/a &&
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git rev-parse --verify :subdir/a >expect &&
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# We have staged changes; merge should error out
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test_must_fail git merge -s recursive E^0 2>err &&
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git rev-parse --verify :subdir/a >actual &&
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test_cmp expect actual &&
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test_grep "changes to the following files would be overwritten" err
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'
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test_expect_success 'recursive, when file has staged changes matching what a merge would give' '
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git reset --hard &&
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git checkout B^0 &&
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mkdir subdir &&
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test_seq 1 11 >subdir/a &&
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git add subdir/a &&
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git rev-parse --verify :subdir/a >expect &&
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# We have staged changes; merge should error out
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test_must_fail git merge -s recursive E^0 2>err &&
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git rev-parse --verify :subdir/a >actual &&
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test_cmp expect actual &&
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test_grep "changes to the following files would be overwritten" err
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'
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test_expect_success 'octopus, unrelated file touched' '
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git reset --hard &&
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git checkout B^0 &&
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touch random_file && git add random_file &&
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test_must_fail git merge C^0 D^0 &&
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test_path_is_missing .git/MERGE_HEAD &&
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git rev-parse --verify :random_file &&
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test_path_exists random_file
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'
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test_expect_success 'octopus, related file removed' '
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git reset --hard &&
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git checkout B^0 &&
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git rm b &&
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test_must_fail git merge C^0 D^0 &&
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test_path_is_missing b &&
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test_must_fail git rev-parse --verify :b &&
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test_path_is_missing .git/MERGE_HEAD
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'
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test_expect_success 'octopus, related file modified' '
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git reset --hard &&
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git checkout B^0 &&
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echo 12 >>a && git add a &&
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git rev-parse --verify :a >expect &&
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test_must_fail git merge C^0 D^0 &&
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test_path_is_file a &&
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git rev-parse --verify :a >actual &&
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test_cmp expect actual &&
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test_path_is_missing .git/MERGE_HEAD
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'
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test_expect_success 'ours' '
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git reset --hard &&
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git checkout B^0 &&
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touch random_file && git add random_file &&
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test_must_fail git merge -s ours C^0 &&
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test_path_is_file random_file &&
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git rev-parse --verify :random_file &&
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test_path_is_missing .git/MERGE_HEAD
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'
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test_expect_success 'subtree' '
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git reset --hard &&
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git checkout B^0 &&
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touch random_file && git add random_file &&
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test_must_fail git merge -s subtree E^0 &&
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test_path_is_file random_file &&
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git rev-parse --verify :random_file &&
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test_path_is_missing .git/MERGE_HEAD
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'
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test_expect_success 'avoid failure due to stat-dirty files' '
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git reset --hard &&
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git checkout B^0 &&
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# Make "a" be stat-dirty
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test-tool chmtime =+1 a &&
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# stat-dirty file should not prevent stash creation in builtin/merge.c
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git merge -s resolve -s recursive D^0
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'
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test_expect_success 'with multiple strategies, recursive or ort failure do not early abort' '
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git reset --hard &&
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git checkout B^0 &&
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test_seq 0 10 >a &&
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git add a &&
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git rev-parse :a >expect &&
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sane_unset GIT_TEST_MERGE_ALGORITHM &&
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test_must_fail git merge -s recursive -s ort -s octopus C^0 >output 2>&1 &&
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grep "Trying merge strategy recursive..." output &&
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grep "Trying merge strategy ort..." output &&
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grep "Trying merge strategy octopus..." output &&
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grep "No merge strategy handled the merge." output &&
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# Changes to "a" should remain staged
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git rev-parse :a >actual &&
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test_cmp expect actual
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'
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test_done
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