import {test, assert} from 'vitest';

import cleanCommitMessage from './clean-commit-message.js';

test('cleanCommitMessage', () => {
	const coauthors = [
		'Co-authored-by: Me <me@example.com>',
		'co-authored-by: Me <me@example.com>',
		'Co-authored-by: You <you@example.com>',
	];
	assert.isEmpty(cleanCommitMessage(''));
	assert.isEmpty(cleanCommitMessage('clean me'));
	assert.isEmpty(cleanCommitMessage(`
		multi-line
	`));

	assert.equal(cleanCommitMessage(`
		Some stuff happened
		${coauthors[0]}
	`), coauthors[0], 'Should preserve just the co-authors');

	assert.equal(cleanCommitMessage(`
		Some stuff happened
		${coauthors[0]}
		Fixes #112345
		${coauthors[2]}
	`), coauthors[0] + '\n' + coauthors[2], 'Should preserve multiple co-authors');

	assert.equal(cleanCommitMessage(`
		Some stuff happened
		${coauthors[0]}
		More stuff
		${coauthors[1]}
	`), coauthors[0], 'Should de-duplicate inconsistent co-authored-by casing');

	assert.isEmpty(cleanCommitMessage(`
		Fixes #1345
	`), 'Should drop closing keywords');

	assert.equal(cleanCommitMessage(`
		Fixes #1345
	`, true), 'Fixes #1345', 'Should keep closing keywords when asked');
	assert.equal(cleanCommitMessage(`
		Fixes #1
		${coauthors[0]}
		closes https://github.com/refined-github/refined-github/pull/6328
	`, true), [
		coauthors[0],
		'Fixes #1',
		'closes https://github.com/refined-github/refined-github/pull/6328',
	].join('\n'), 'Should keep multiple closing keywords');
});