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-rw-r--r--t/t3507-cherry-pick-conflict.sh198
1 files changed, 198 insertions, 0 deletions
diff --git a/t/t3507-cherry-pick-conflict.sh b/t/t3507-cherry-pick-conflict.sh
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+++ b/t/t3507-cherry-pick-conflict.sh
@@ -0,0 +1,198 @@
+#!/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_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' '
+
+ git checkout -f initial^0 &&
+ git read-tree -u --reset HEAD &&
+ git clean -d -f -f -q -x &&
+
+ git update-index --refresh &&
+ git diff-index --exit-code HEAD &&
+
+ head=$(git rev-parse HEAD) &&
+ test_must_fail git cherry-pick picked &&
+ newhead=$(git rev-parse HEAD) &&
+
+ test "$head" = "$newhead"
+'
+
+test_expect_success 'failed cherry-pick produces dirty index' '
+
+ git checkout -f initial^0 &&
+ git read-tree -u --reset HEAD &&
+ git clean -d -f -f -q -x &&
+
+ git update-index --refresh &&
+ git diff-index --exit-code HEAD &&
+
+ 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' '
+
+ git read-tree -u --reset HEAD &&
+ git clean -d -f -f -q -x &&
+ {
+ 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 checkout -f initial^0 &&
+
+ git update-index --refresh &&
+ git diff-index --exit-code 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' '
+
+ git checkout -f initial^0 &&
+ git read-tree -u --reset HEAD &&
+ git clean -d -f -f -q -x &&
+ cat <<-EOF > expected &&
+ <<<<<<< HEAD
+ a
+ =======
+ c
+ >>>>>>> objid picked
+ EOF
+
+ git update-index --refresh &&
+ git diff-index --exit-code HEAD &&
+
+ 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' '
+
+ git config merge.conflictstyle diff3 &&
+ git checkout -f initial^0 &&
+ git read-tree -u --reset HEAD &&
+ git clean -d -f -f -q -x &&
+ cat <<-EOF > expected &&
+ <<<<<<< HEAD
+ a
+ ||||||| parent of objid picked
+ b
+ =======
+ c
+ >>>>>>> objid picked
+ EOF
+
+ git update-index --refresh &&
+ git diff-index --exit-code HEAD &&
+
+ 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 &&
+ git read-tree -u --reset HEAD &&
+ git clean -d -f -f -q -x &&
+ 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 checkout -f initial^0 &&
+
+ git update-index --refresh &&
+ git diff-index --exit-code 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 'revert conflict, diff3 -m style' '
+ git config merge.conflictstyle diff3 &&
+ git checkout -f initial^0 &&
+ git read-tree -u --reset HEAD &&
+ git clean -d -f -f -q -x &&
+ cat <<-EOF > expected &&
+ <<<<<<< HEAD
+ a
+ ||||||| objid picked
+ c
+ =======
+ b
+ >>>>>>> parent of objid picked
+ EOF
+
+ git update-index --refresh &&
+ git diff-index --exit-code HEAD &&
+
+ test_must_fail git revert picked &&
+
+ sed "s/[a-f0-9]*\.\.\./objid/" foo > actual &&
+ test_cmp expected actual
+'
+
+test_done