wp-calypso/packages/eslint-plugin-wpcalypso/lib/rules/test/post-message-no-wildcard-targets.js

/**
 * @file Disallow using the wildcard `*` in postMessage
 * @author Automattic
 * @copyright 2017 Automattic. All rights reserved.
 * See LICENSE.md file in root directory for full license.
 */

//------------------------------------------------------------------------------
// Requirements
//------------------------------------------------------------------------------

const RuleTester = require( 'eslint' ).RuleTester;
const rule = require( '../../../lib/rules/post-message-no-wildcard-targets' );
const config = { env: { es6: true } };

//------------------------------------------------------------------------------
// Tests
//------------------------------------------------------------------------------

new RuleTester( config ).run( 'post-message-no-wildcard-targets', rule, {
	valid: [
		{ code: 'foo()' },
		{ code: "foo( 1, '*' )" },
		{ code: "postMessage( 1, 'test' )" },
		{ code: 'postMessage( null, test )' },
		{ code: 'postMessage( true, test() )' },
		{ code: "postMessage( '*', 'some.domain' )" },
	],

	invalid: [
		{
			code: "postMessage( 'bob', '*' )",
			errors: [ { message: rule.ERROR_MESSAGE } ],
		},
		{
			code: "postMessage( false, '*' )",
			errors: [ { message: rule.ERROR_MESSAGE } ],
		},
		{
			code: 'postMessage( JSON.stringify( {} ), "*" )',
			errors: [ { message: rule.ERROR_MESSAGE } ],
		},
		{
			code: 'postMessage( null, `*` )',
			errors: [ { message: rule.ERROR_MESSAGE } ],
		},
		{
			code: "window.postMessage( null, '*' )",
			errors: [ { message: rule.ERROR_MESSAGE } ],
		},
		{
			code: "frame.postMessage( null, '*' )",
			errors: [ { message: rule.ERROR_MESSAGE } ],
		},
		{
			code: "a.contentWindow.postMessage( null, '*' )",
			errors: [ { message: rule.ERROR_MESSAGE } ],
		},
	],
} );