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-rwxr-xr-xt/t3507-cherry-pick-conflict.sh343
1 files changed, 343 insertions, 0 deletions
diff --git a/t/t3507-cherry-pick-conflict.sh b/t/t3507-cherry-pick-conflict.sh
new file mode 100755
index 0000000000..0c81b3c427
--- /dev/null
+++ b/t/t3507-cherry-pick-conflict.sh
@@ -0,0 +1,343 @@
+#!/bin/sh
+
+test_description='test cherry-pick and revert with conflicts
+
+ -
+ + picked: rewrites foo to c
+ + base: rewrites foo to b
+ + initial: writes foo as a, unrelated as unrelated
+
+'
+
+. ./test-lib.sh
+
+test_cmp_rev () {
+ git rev-parse --verify "$1" >expect.rev &&
+ git rev-parse --verify "$2" >actual.rev &&
+ test_cmp expect.rev actual.rev
+}
+
+pristine_detach () {
+ git checkout -f "$1^0" &&
+ git read-tree -u --reset HEAD &&
+ git clean -d -f -f -q -x
+}
+
+test_expect_success setup '
+
+ echo unrelated >unrelated &&
+ git add unrelated &&
+ test_commit initial foo a &&
+ test_commit base foo b &&
+ test_commit picked foo c &&
+ git config advice.detachedhead false
+
+'
+
+test_expect_success 'failed cherry-pick does not advance HEAD' '
+ pristine_detach initial &&
+
+ head=$(git rev-parse HEAD) &&
+ test_must_fail git cherry-pick picked &&
+ newhead=$(git rev-parse HEAD) &&
+
+ test "$head" = "$newhead"
+'
+
+test_expect_success 'advice from failed cherry-pick' "
+ pristine_detach initial &&
+
+ picked=\$(git rev-parse --short picked) &&
+ cat <<-EOF >expected &&
+ error: could not apply \$picked... picked
+ hint: after resolving the conflicts, mark the corrected paths
+ hint: with 'git add <paths>' or 'git rm <paths>'
+ hint: and commit the result with 'git commit'
+ EOF
+ test_must_fail git cherry-pick picked 2>actual &&
+
+ test_i18ncmp expected actual
+"
+
+test_expect_success 'advice from failed cherry-pick --no-commit' "
+ pristine_detach initial &&
+
+ picked=\$(git rev-parse --short picked) &&
+ cat <<-EOF >expected &&
+ error: could not apply \$picked... picked
+ hint: after resolving the conflicts, mark the corrected paths
+ hint: with 'git add <paths>' or 'git rm <paths>'
+ EOF
+ test_must_fail git cherry-pick --no-commit picked 2>actual &&
+
+ test_i18ncmp expected actual
+"
+
+test_expect_success 'failed cherry-pick sets CHERRY_PICK_HEAD' '
+ pristine_detach initial &&
+ test_must_fail git cherry-pick picked &&
+ test_cmp_rev picked CHERRY_PICK_HEAD
+'
+
+test_expect_success 'successful cherry-pick does not set CHERRY_PICK_HEAD' '
+ pristine_detach initial &&
+ git cherry-pick base &&
+ test_must_fail git rev-parse --verify CHERRY_PICK_HEAD
+'
+
+test_expect_success 'cherry-pick --no-commit does not set CHERRY_PICK_HEAD' '
+ pristine_detach initial &&
+ git cherry-pick --no-commit base &&
+ test_must_fail git rev-parse --verify CHERRY_PICK_HEAD
+'
+
+test_expect_success 'cherry-pick w/dirty tree does not set CHERRY_PICK_HEAD' '
+ pristine_detach initial &&
+ echo foo > foo &&
+ test_must_fail git cherry-pick base &&
+ test_must_fail git rev-parse --verify CHERRY_PICK_HEAD
+'
+
+test_expect_success \
+ 'cherry-pick --strategy=resolve w/dirty tree does not set CHERRY_PICK_HEAD' '
+ pristine_detach initial &&
+ echo foo > foo &&
+ test_must_fail git cherry-pick --strategy=resolve base &&
+ test_must_fail git rev-parse --verify CHERRY_PICK_HEAD
+'
+
+test_expect_success 'GIT_CHERRY_PICK_HELP suppresses CHERRY_PICK_HEAD' '
+ pristine_detach initial &&
+ (
+ GIT_CHERRY_PICK_HELP="and then do something else" &&
+ export GIT_CHERRY_PICK_HELP &&
+ test_must_fail git cherry-pick picked
+ ) &&
+ test_must_fail git rev-parse --verify CHERRY_PICK_HEAD
+'
+
+test_expect_success 'git reset clears CHERRY_PICK_HEAD' '
+ pristine_detach initial &&
+
+ test_must_fail git cherry-pick picked &&
+ git reset &&
+
+ test_must_fail git rev-parse --verify CHERRY_PICK_HEAD
+'
+
+test_expect_success 'failed commit does not clear CHERRY_PICK_HEAD' '
+ pristine_detach initial &&
+
+ test_must_fail git cherry-pick picked &&
+ test_must_fail git commit &&
+
+ test_cmp_rev picked CHERRY_PICK_HEAD
+'
+
+test_expect_success 'cancelled commit does not clear CHERRY_PICK_HEAD' '
+ pristine_detach initial &&
+
+ test_must_fail git cherry-pick picked &&
+ echo resolved >foo &&
+ git add foo &&
+ git update-index --refresh -q &&
+ test_must_fail git diff-index --exit-code HEAD &&
+ (
+ GIT_EDITOR=false &&
+ export GIT_EDITOR &&
+ test_must_fail git commit
+ ) &&
+
+ test_cmp_rev picked CHERRY_PICK_HEAD
+'
+
+test_expect_success 'successful commit clears CHERRY_PICK_HEAD' '
+ pristine_detach initial &&
+
+ test_must_fail git cherry-pick picked &&
+ echo resolved >foo &&
+ git add foo &&
+ git commit &&
+
+ test_must_fail git rev-parse --verify CHERRY_PICK_HEAD
+'
+
+test_expect_success 'failed cherry-pick produces dirty index' '
+ pristine_detach initial &&
+
+ test_must_fail git cherry-pick picked &&
+
+ test_must_fail git update-index --refresh -q &&
+ test_must_fail git diff-index --exit-code HEAD
+'
+
+test_expect_success 'failed cherry-pick registers participants in index' '
+ pristine_detach initial &&
+ {
+ git checkout base -- foo &&
+ git ls-files --stage foo &&
+ git checkout initial -- foo &&
+ git ls-files --stage foo &&
+ git checkout picked -- foo &&
+ git ls-files --stage foo
+ } > stages &&
+ sed "
+ 1 s/ 0 / 1 /
+ 2 s/ 0 / 2 /
+ 3 s/ 0 / 3 /
+ " < stages > expected &&
+ git read-tree -u --reset HEAD &&
+
+ test_must_fail git cherry-pick picked &&
+ git ls-files --stage --unmerged > actual &&
+
+ test_cmp expected actual
+'
+
+test_expect_success 'failed cherry-pick describes conflict in work tree' '
+ pristine_detach initial &&
+ cat <<-EOF > expected &&
+ <<<<<<< HEAD
+ a
+ =======
+ c
+ >>>>>>> objid picked
+ EOF
+
+ test_must_fail git cherry-pick picked &&
+
+ sed "s/[a-f0-9]*\.\.\./objid/" foo > actual &&
+ test_cmp expected actual
+'
+
+test_expect_success 'diff3 -m style' '
+ pristine_detach initial &&
+ git config merge.conflictstyle diff3 &&
+ cat <<-EOF > expected &&
+ <<<<<<< HEAD
+ a
+ ||||||| parent of objid picked
+ b
+ =======
+ c
+ >>>>>>> objid picked
+ EOF
+
+ test_must_fail git cherry-pick picked &&
+
+ sed "s/[a-f0-9]*\.\.\./objid/" foo > actual &&
+ test_cmp expected actual
+'
+
+test_expect_success 'revert also handles conflicts sanely' '
+ git config --unset merge.conflictstyle &&
+ pristine_detach initial &&
+ cat <<-EOF > expected &&
+ <<<<<<< HEAD
+ a
+ =======
+ b
+ >>>>>>> parent of objid picked
+ EOF
+ {
+ git checkout picked -- foo &&
+ git ls-files --stage foo &&
+ git checkout initial -- foo &&
+ git ls-files --stage foo &&
+ git checkout base -- foo &&
+ git ls-files --stage foo
+ } > stages &&
+ sed "
+ 1 s/ 0 / 1 /
+ 2 s/ 0 / 2 /
+ 3 s/ 0 / 3 /
+ " < stages > expected-stages &&
+ git read-tree -u --reset HEAD &&
+
+ head=$(git rev-parse HEAD) &&
+ test_must_fail git revert picked &&
+ newhead=$(git rev-parse HEAD) &&
+ git ls-files --stage --unmerged > actual-stages &&
+
+ test "$head" = "$newhead" &&
+ test_must_fail git update-index --refresh -q &&
+ test_must_fail git diff-index --exit-code HEAD &&
+ test_cmp expected-stages actual-stages &&
+ sed "s/[a-f0-9]*\.\.\./objid/" foo > actual &&
+ test_cmp expected actual
+'
+
+test_expect_success 'failed revert sets REVERT_HEAD' '
+ pristine_detach initial &&
+ test_must_fail git revert picked &&
+ test_cmp_rev picked REVERT_HEAD
+'
+
+test_expect_success 'successful revert does not set REVERT_HEAD' '
+ pristine_detach base &&
+ git revert base &&
+ test_must_fail git rev-parse --verify CHERRY_PICK_HEAD &&
+ test_must_fail git rev-parse --verify REVERT_HEAD
+'
+
+test_expect_success 'revert --no-commit sets REVERT_HEAD' '
+ pristine_detach base &&
+ git revert --no-commit base &&
+ test_must_fail git rev-parse --verify CHERRY_PICK_HEAD &&
+ test_cmp_rev base REVERT_HEAD
+'
+
+test_expect_success 'revert w/dirty tree does not set REVERT_HEAD' '
+ pristine_detach base &&
+ echo foo > foo &&
+ test_must_fail git revert base &&
+ test_must_fail git rev-parse --verify CHERRY_PICK_HEAD &&
+ test_must_fail git rev-parse --verify REVERT_HEAD
+'
+
+test_expect_success 'GIT_CHERRY_PICK_HELP does not suppress REVERT_HEAD' '
+ pristine_detach initial &&
+ (
+ GIT_CHERRY_PICK_HELP="and then do something else" &&
+ GIT_REVERT_HELP="and then do something else, again" &&
+ export GIT_CHERRY_PICK_HELP GIT_REVERT_HELP &&
+ test_must_fail git revert picked
+ ) &&
+ test_must_fail git rev-parse --verify CHERRY_PICK_HEAD &&
+ test_cmp_rev picked REVERT_HEAD
+'
+
+test_expect_success 'git reset clears REVERT_HEAD' '
+ pristine_detach initial &&
+ test_must_fail git revert picked &&
+ git reset &&
+ test_must_fail git rev-parse --verify REVERT_HEAD
+'
+
+test_expect_success 'failed commit does not clear REVERT_HEAD' '
+ pristine_detach initial &&
+ test_must_fail git revert picked &&
+ test_must_fail git commit &&
+ test_cmp_rev picked REVERT_HEAD
+'
+
+test_expect_success 'revert conflict, diff3 -m style' '
+ pristine_detach initial &&
+ git config merge.conflictstyle diff3 &&
+ cat <<-EOF > expected &&
+ <<<<<<< HEAD
+ a
+ ||||||| objid picked
+ c
+ =======
+ b
+ >>>>>>> parent of objid picked
+ EOF
+
+ test_must_fail git revert picked &&
+
+ sed "s/[a-f0-9]*\.\.\./objid/" foo > actual &&
+ test_cmp expected actual
+'
+
+test_done