no-hex-escape.mjs

import {getTester, avoidTestTitleConflict} from './utils/test.mjs';

const {test} = getTester(import.meta);

const error = {
	messageId: 'no-hex-escape',
};

const tests = {
	valid: [
		'const foo = \'foo\'',
		String.raw`const foo = '\u00b1'`,
		String.raw`const foo = '\u00b1\u00b1'`,
		String.raw`const foo = 'foo\u00b1'`,
		String.raw`const foo = 'foo\u00b1foo'`,
		String.raw`const foo = '\u00b1foo'`,
		String.raw`const foo = '\\xb1'`,
		String.raw`const foo = '\\\\xb1'`,
		String.raw`const foo = 'foo\\xb1'`,
		String.raw`const foo = 'foo\\\\xb1'`,
		String.raw`const foo = '\\xd8\\x3d\\xdc\\xa9'`,
		String.raw`const foo = 'foo\\x12foo\\x34'`,
		String.raw`const foo = '\\\\xd8\\\\x3d\\\\xdc\\\\xa9'`,
		String.raw`const foo = 'foo\\\\x12foo\\\\x34'`,
		'const foo = 42',
		'const foo = `foo`',
		'const foo = `\\u00b1`',
		'const foo = `\\u00b1\\u00b1`',
		'const foo = `foo\\u00b1`',
		'const foo = `foo\\u00b1foo`',
		'const foo = `\\u00b1foo`',
		'const foo = `42`',
		'const foo = `\\\\xb1`',
		'const foo = `\\\\\\\\xb1`',
		'const foo = `foo\\\\xb1`',
		'const foo = `foo\\\\\\\\xb1`',
		'const foo = `\\\\xd8\\\\x3d\\\\xdc\\\\xa9`',
		'const foo = `foo\\\\x12foo\\\\x34`',
		'const foo = `\\\\\\\\xd8\\\\\\\\x3d\\\\\\\\xdc\\\\\\\\xa9`',
		'const foo = `foo\\\\\\\\x12foo\\\\\\\\x34`',
		'const foo = String.raw`\\\\xb1`',
	],
	invalid: [
		{
			code: String.raw`const foo = '\xb1'`,
			errors: [error],
			output: String.raw`const foo = '\u00b1'`,
		},
		{
			code: String.raw`const foo = '\\\xb1'`,
			errors: [error],
			output: String.raw`const foo = '\\\u00b1'`,
		},
		{
			code: String.raw`const foo = '\xb1\xb1'`,
			errors: [error],
			output: String.raw`const foo = '\u00b1\u00b1'`,
		},
		{
			code: String.raw`const foo = '\\\xb1\\\xb1'`,
			errors: [error],
			output: String.raw`const foo = '\\\u00b1\\\u00b1'`,
		},
		{
			code: String.raw`const foo = '\\\xb1\\\\xb1'`,
			errors: [error],
			output: String.raw`const foo = '\\\u00b1\\\\xb1'`,
		},
		{
			code: String.raw`const foo = '\\\\\xb1\\\xb1'`,
			errors: [error],
			output: String.raw`const foo = '\\\\\u00b1\\\u00b1'`,
		},
		{
			code: String.raw`const foo = '\xb1foo'`,
			errors: [error],
			output: String.raw`const foo = '\u00b1foo'`,
		},
		{
			code: String.raw`const foo = '\xd8\x3d\xdc\xa9'`,
			errors: [error],
			output: String.raw`const foo = '\u00d8\u003d\u00dc\u00a9'`,
		},
		{
			code: String.raw`const foo = 'foo\xb1'`,
			errors: [error],
			output: String.raw`const foo = 'foo\u00b1'`,
		},
		{
			code: String.raw`const foo = 'foo\\\xb1'`,
			errors: [error],
			output: String.raw`const foo = 'foo\\\u00b1'`,
		},
		{
			code: String.raw`const foo = 'foo\\\\\xb1'`,
			errors: [error],
			output: String.raw`const foo = 'foo\\\\\u00b1'`,
		},
		{
			code: String.raw`const foo = 'foo\x12foo\x34'`,
			errors: [error],
			output: String.raw`const foo = 'foo\u0012foo\u0034'`,
		},
		{
			code: String.raw`const foo = '42\x1242\x34'`,
			errors: [error],
			output: String.raw`const foo = '42\u001242\u0034'`,
		},
		{
			code: String.raw`const foo = '42\\\x1242\\\x34'`,
			errors: [error],
			output: String.raw`const foo = '42\\\u001242\\\u0034'`,
		},
		{
			code: String.raw`const foo = /^[\x20-\x7E]*$/`,
			errors: [error],
			output: String.raw`const foo = /^[\u0020-\u007E]*$/`,
		},
		// Test template literals
		{
			code: 'const foo = `\\xb1`',
			errors: [error],
			output: 'const foo = `\\u00b1`',
		},
		{
			code: 'const foo = `\\\\\\xb1`',
			errors: [error],
			output: 'const foo = `\\\\\\u00b1`',
		},
		{
			code: 'const foo = `\\xb1\\xb1`',
			errors: [error],
			output: 'const foo = `\\u00b1\\u00b1`',
		},
		{
			code: 'const foo = `\\\\\\xb1\\\\\\xb1`',
			errors: [error],
			output: 'const foo = `\\\\\\u00b1\\\\\\u00b1`',
		},
		{
			code: 'const foo = `\\\\\\\\\\xb1\\\\\\xb1`',
			errors: [error],
			output: 'const foo = `\\\\\\\\\\u00b1\\\\\\u00b1`',
		},
		{
			code: 'const foo = `\\\\\\\\\\xb1\\\\\\\\xb1`',
			errors: [error],
			output: 'const foo = `\\\\\\\\\\u00b1\\\\\\\\xb1`',
		},
		{
			code: 'const foo = `\\xb1foo`',
			errors: [error],
			output: 'const foo = `\\u00b1foo`',
		},
		{
			code: 'const foo = `\\xd8\\x3d\\xdc\\xa9`',
			errors: [error],
			output: 'const foo = `\\u00d8\\u003d\\u00dc\\u00a9`',
		},
		{
			code: 'const foo = `foo\\xb1`',
			errors: [error],
			output: 'const foo = `foo\\u00b1`',
		},
		{
			code: 'const foo = `foo\\\\\\xb1`',
			errors: [error],
			output: 'const foo = `foo\\\\\\u00b1`',
		},
		{
			code: 'const foo = `foo\\\\\\\\\\xb1`',
			errors: [error],
			output: 'const foo = `foo\\\\\\\\\\u00b1`',
		},
		{
			code: 'const foo = `foo\\x12foo\\x34`',
			errors: [error],
			output: 'const foo = `foo\\u0012foo\\u0034`',
		},
		{
			code: 'const foo = `42\\x1242\\x34`',
			errors: [error],
			output: 'const foo = `42\\u001242\\u0034`',
		},
		{
			code: 'const foo = `42\\\\\\x1242\\\\\\x34`',
			errors: [error],
			output: 'const foo = `42\\\\\\u001242\\\\\\u0034`',
		},
		{
			// eslint-disable-next-line no-template-curly-in-string
			code: 'const foo = `\\xb1${foo}\\xb1${foo}`',
			errors: [error, error],
			// eslint-disable-next-line no-template-curly-in-string
			output: 'const foo = `\\u00b1${foo}\\u00b1${foo}`',
		},
		{
			code: 'const foo = `\\xb1```',
			errors: [error],
			output: 'const foo = `\\u00b1```',
		},
		// TODO: Not safe #2341
		{
			code: 'const foo = tagged`\\xb1`',
			errors: [error],
			output: 'const foo = tagged`\\u00b1`',
		},
	],
};

test(tests);
test.babel(avoidTestTitleConflict(tests, 'babel'));
test.typescript(avoidTestTitleConflict(tests, 'typescript'));

test.snapshot({
	valid: [],
	invalid: [
		String.raw`const foo = "\xb1"`,
	],
});