1 files changed, 283 insertions, 0 deletions
diff --git a/t/t7503-pre-commit-and-pre-merge-commit-hooks.sh b/t/t7503-pre-commit-and-pre-merge-commit-hooks.sh
new file mode 100755
index 0000000..aa004b7
--- /dev/null
+++ b/t/t7503-pre-commit-and-pre-merge-commit-hooks.sh
@@ -0,0 +1,283 @@
+#!/bin/sh
+
+test_description='pre-commit and pre-merge-commit hooks'
+
+GIT_TEST_DEFAULT_INITIAL_BRANCH_NAME=main
+export GIT_TEST_DEFAULT_INITIAL_BRANCH_NAME
+
+TEST_PASSES_SANITIZE_LEAK=true
+. ./test-lib.sh
+
+test_expect_success 'root commit' '
+	echo "root" >file &&
+	git add file &&
+	git commit -m "zeroth" &&
+	git checkout -b side &&
+	echo "foo" >foo &&
+	git add foo &&
+	git commit -m "make it non-ff" &&
+	git branch side-orig side &&
+	git checkout main
+'
+
+test_expect_success 'setup conflicting branches' '
+	test_when_finished "git checkout main" &&
+	git checkout -b conflicting-a main &&
+	echo a >conflicting &&
+	git add conflicting &&
+	git commit -m conflicting-a &&
+	git checkout -b conflicting-b main &&
+	echo b >conflicting &&
+	git add conflicting &&
+	git commit -m conflicting-b
+'
+
+test_expect_success 'with no hook' '
+	test_when_finished "rm -f actual_hooks" &&
+	echo "foo" >file &&
+	git add file &&
+	git commit -m "first" &&
+	test_path_is_missing actual_hooks
+'
+
+test_expect_success 'with no hook (merge)' '
+	test_when_finished "rm -f actual_hooks" &&
+	git branch -f side side-orig &&
+	git checkout side &&
+	git merge -m "merge main" main &&
+	git checkout main &&
+	test_path_is_missing actual_hooks
+'
+
+test_expect_success '--no-verify with no hook' '
+	test_when_finished "rm -f actual_hooks" &&
+	echo "bar" >file &&
+	git add file &&
+	git commit --no-verify -m "bar" &&
+	test_path_is_missing actual_hooks
+'
+
+test_expect_success '--no-verify with no hook (merge)' '
+	test_when_finished "rm -f actual_hooks" &&
+	git branch -f side side-orig &&
+	git checkout side &&
+	git merge --no-verify -m "merge main" main &&
+	git checkout main &&
+	test_path_is_missing actual_hooks
+'
+
+setup_success_hook () {
+	test_when_finished "rm -f actual_hooks expected_hooks" &&
+	echo "$1" >expected_hooks &&
+	test_hook "$1" <<-EOF
+	echo $1 >>actual_hooks
+	EOF
+}
+
+test_expect_success 'with succeeding hook' '
+	setup_success_hook "pre-commit" &&
+	echo "more" >>file &&
+	git add file &&
+	git commit -m "more" &&
+	test_cmp expected_hooks actual_hooks
+'
+
+test_expect_success 'with succeeding hook (merge)' '
+	setup_success_hook "pre-merge-commit" &&
+	git checkout side &&
+	git merge -m "merge main" main &&
+	git checkout main &&
+	test_cmp expected_hooks actual_hooks
+'
+
+test_expect_success 'automatic merge fails; both hooks are available' '
+	setup_success_hook "pre-commit" &&
+	setup_success_hook "pre-merge-commit" &&
+
+	git checkout conflicting-a &&
+	test_must_fail git merge -m "merge conflicting-b" conflicting-b &&
+	test_path_is_missing actual_hooks &&
+
+	echo "pre-commit" >expected_hooks &&
+	echo a+b >conflicting &&
+	git add conflicting &&
+	git commit -m "resolve conflict" &&
+	test_cmp expected_hooks actual_hooks
+'
+
+test_expect_success '--no-verify with succeeding hook' '
+	setup_success_hook "pre-commit" &&
+	echo "even more" >>file &&
+	git add file &&
+	git commit --no-verify -m "even more" &&
+	test_path_is_missing actual_hooks
+'
+
+test_expect_success '--no-verify with succeeding hook (merge)' '
+	setup_success_hook "pre-merge-commit" &&
+	git branch -f side side-orig &&
+	git checkout side &&
+	git merge --no-verify -m "merge main" main &&
+	git checkout main &&
+	test_path_is_missing actual_hooks
+'
+
+setup_failing_hook () {
+	test_when_finished "rm -f actual_hooks" &&
+	test_hook "$1" <<-EOF
+	echo $1-failing-hook >>actual_hooks
+	exit 1
+	EOF
+}
+
+test_expect_success 'with failing hook' '
+	setup_failing_hook "pre-commit" &&
+	test_when_finished "rm -f expected_hooks" &&
+	echo "pre-commit-failing-hook" >expected_hooks &&
+
+	echo "another" >>file &&
+	git add file &&
+	test_must_fail git commit -m "another" &&
+	test_cmp expected_hooks actual_hooks
+'
+
+test_expect_success '--no-verify with failing hook' '
+	setup_failing_hook "pre-commit" &&
+	echo "stuff" >>file &&
+	git add file &&
+	git commit --no-verify -m "stuff" &&
+	test_path_is_missing actual_hooks
+'
+
+test_expect_success 'with failing hook (merge)' '
+	setup_failing_hook "pre-merge-commit" &&
+	echo "pre-merge-commit-failing-hook" >expected_hooks &&
+	git checkout side &&
+	test_must_fail git merge -m "merge main" main &&
+	git checkout main &&
+	test_cmp expected_hooks actual_hooks
+'
+
+test_expect_success '--no-verify with failing hook (merge)' '
+	setup_failing_hook "pre-merge-commit" &&
+
+	git branch -f side side-orig &&
+	git checkout side &&
+	git merge --no-verify -m "merge main" main &&
+	git checkout main &&
+	test_path_is_missing actual_hooks
+'
+
+setup_non_exec_hook () {
+	test_when_finished "rm -f actual_hooks" &&
+	test_hook "$1" <<-\EOF &&
+	echo non-exec >>actual_hooks
+	exit 1
+	EOF
+	test_hook --disable "$1"
+}
+
+
+test_expect_success POSIXPERM 'with non-executable hook' '
+	setup_non_exec_hook "pre-commit" &&
+	echo "content" >>file &&
+	git add file &&
+	git commit -m "content" &&
+	test_path_is_missing actual_hooks
+'
+
+test_expect_success POSIXPERM '--no-verify with non-executable hook' '
+	setup_non_exec_hook "pre-commit" &&
+	echo "more content" >>file &&
+	git add file &&
+	git commit --no-verify -m "more content" &&
+	test_path_is_missing actual_hooks
+'
+
+test_expect_success POSIXPERM 'with non-executable hook (merge)' '
+	setup_non_exec_hook "pre-merge" &&
+	git branch -f side side-orig &&
+	git checkout side &&
+	git merge -m "merge main" main &&
+	git checkout main &&
+	test_path_is_missing actual_hooks
+'
+
+test_expect_success POSIXPERM '--no-verify with non-executable hook (merge)' '
+	setup_non_exec_hook "pre-merge" &&
+	git branch -f side side-orig &&
+	git checkout side &&
+	git merge --no-verify -m "merge main" main &&
+	git checkout main &&
+	test_path_is_missing actual_hooks
+'
+
+setup_require_prefix_hook () {
+	test_when_finished "rm -f expected_hooks" &&
+	echo require-prefix >expected_hooks &&
+	test_hook pre-commit <<-\EOF
+	echo require-prefix >>actual_hooks
+	test $GIT_PREFIX = "success/"
+	EOF
+}
+
+test_expect_success 'with hook requiring GIT_PREFIX' '
+	test_when_finished "rm -rf actual_hooks success" &&
+	setup_require_prefix_hook &&
+	echo "more content" >>file &&
+	git add file &&
+	mkdir success &&
+	(
+		cd success &&
+		git commit -m "hook requires GIT_PREFIX = success/"
+	) &&
+	test_cmp expected_hooks actual_hooks
+'
+
+test_expect_success 'with failing hook requiring GIT_PREFIX' '
+	test_when_finished "rm -rf actual_hooks fail" &&
+	setup_require_prefix_hook &&
+	echo "more content" >>file &&
+	git add file &&
+	mkdir fail &&
+	(
+		cd fail &&
+		test_must_fail git commit -m "hook must fail"
+	) &&
+	git checkout -- file &&
+	test_cmp expected_hooks actual_hooks
+'
+
+setup_require_author_hook () {
+	test_when_finished "rm -f expected_hooks actual_hooks" &&
+	echo check-author >expected_hooks &&
+	test_hook pre-commit <<-\EOF
+	echo check-author >>actual_hooks
+	test "$GIT_AUTHOR_NAME" = "New Author" &&
+	test "$GIT_AUTHOR_EMAIL" = "newauthor@example.com"
+	EOF
+}
+
+
+test_expect_success 'check the author in hook' '
+	setup_require_author_hook &&
+	cat >expected_hooks <<-EOF &&
+	check-author
+	check-author
+	check-author
+	EOF
+	test_must_fail git commit --allow-empty -m "by a.u.thor" &&
+	(
+		GIT_AUTHOR_NAME="New Author" &&
+		GIT_AUTHOR_EMAIL="newauthor@example.com" &&
+		export GIT_AUTHOR_NAME GIT_AUTHOR_EMAIL &&
+		git commit --allow-empty -m "by new.author via env" &&
+		git show -s
+	) &&
+	git commit --author="New Author <newauthor@example.com>" \
+		--allow-empty -m "by new.author via command line" &&
+	git show -s &&
+	test_cmp expected_hooks actual_hooks
+'
+
+test_done