'use strict';
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var has = require('has');
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var inspect = require('object-inspect');
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var supportsDescriptors = require('define-properties').supportsDescriptors;
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var forEach = require('foreach');
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var availableFlags = require('available-regexp-flags');
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var regexProperties = require('available-regexp-flags/properties');
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var sortedFlags = availableFlags.slice().sort(function (a, b) { return a.localeCompare(b); }).join('');
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var getRegexLiteral = function (stringRegex) {
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try {
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// eslint-disable-next-line no-new-func
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return Function('return ' + stringRegex + ';')();
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} catch (e) { /**/ }
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return null;
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};
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module.exports = function runTests(flags, t) {
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t.equal(flags(/a/g), 'g', 'flags(/a/g) !== "g"');
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t.equal(flags(/a/gmi), 'gim', 'flags(/a/gmi) !== "gim"');
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t.equal(flags(new RegExp('a', 'gmi')), 'gim', 'flags(new RegExp("a", "gmi")) !== "gim"');
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t.equal(flags(/a/), '', 'flags(/a/) !== ""');
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t.equal(flags(new RegExp('a')), '', 'flags(new RegExp("a")) !== ""');
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forEach(availableFlags, function (flag) {
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var property = regexProperties[flag];
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t.test(property + ' flag', function (st) {
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st.equal(flags(getRegexLiteral('/a/' + flag)), flag, 'flags(/a/' + flag + ') !== ' + inspect(flag));
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st.equal(flags(new RegExp('a', flag)), flag, 'flags(new RegExp("a", ' + inspect(flag) + ')) !== ' + inspect(flag));
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st.end();
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});
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});
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t.test('sorting', function (st) {
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st.equal(flags(/a/gim), 'gim', 'flags(/a/gim) !== "gim"');
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st.equal(flags(/a/mig), 'gim', 'flags(/a/mig) !== "gim"');
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st.equal(flags(/a/mgi), 'gim', 'flags(/a/mgi) !== "gim"');
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if (has(RegExp.prototype, 'sticky')) {
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st.equal(flags(getRegexLiteral('/a/gyim')), 'gimy', 'flags(/a/gyim) !== "gimy"');
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}
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if (has(RegExp.prototype, 'unicode')) {
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st.equal(flags(getRegexLiteral('/a/ugmi')), 'gimu', 'flags(/a/ugmi) !== "gimu"');
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}
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if (has(RegExp.prototype, 'dotAll')) {
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st.equal(flags(getRegexLiteral('/a/sgmi')), 'gims', 'flags(/a/sgmi) !== "gims"');
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}
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var randomFlags = availableFlags.slice().sort(function () { return Math.random() > 0.5 ? 1 : -1; }).join('');
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st.equal(
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flags(getRegexLiteral('/a/' + randomFlags)),
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sortedFlags,
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'random: flags(/a/' + randomFlags + ') === ' + inspect(sortedFlags)
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);
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st.end();
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});
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t.test('basic examples', function (st) {
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st.equal(flags(/a/g), 'g', '(/a/g).flags !== "g"');
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st.equal(flags(/a/gmi), 'gim', '(/a/gmi).flags !== "gim"');
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st.equal(flags(new RegExp('a', 'gmi')), 'gim', 'new RegExp("a", "gmi").flags !== "gim"');
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st.equal(flags(/a/), '', '(/a/).flags !== ""');
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st.equal(flags(new RegExp('a')), '', 'new RegExp("a").flags !== ""');
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st.end();
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});
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t.test('generic flags', function (st) {
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st.equal(flags({}), '');
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st.equal(flags({ ignoreCase: true }), 'i');
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st.equal(flags({ dotAll: 1, global: 0, sticky: 1, unicode: 1 }), 'suy');
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st.equal(flags({ __proto__: { multiline: true } }), 'm');
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var obj = {};
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forEach(availableFlags, function (flag) {
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obj[regexProperties[flag]] = true;
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});
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st.equal(flags(obj), sortedFlags, 'an object with every available flag: ' + sortedFlags);
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st.end();
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});
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t.test('throws properly', function (st) {
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var nonObjects = ['', false, true, 42, NaN, null, undefined];
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st.plan(nonObjects.length);
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var throwsOnNonObject = function (nonObject) {
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st['throws'](flags.bind(null, nonObject), TypeError, inspect(nonObject) + ' is not an Object');
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};
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nonObjects.forEach(throwsOnNonObject);
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});
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t.test('getters', { skip: !supportsDescriptors }, function (st) {
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/* eslint getter-return: 0 */
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var calls = '';
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var re = {};
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Object.defineProperty(re, 'hasIndices', {
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get: function () {
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calls += 'd';
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}
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});
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Object.defineProperty(re, 'global', {
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get: function () {
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calls += 'g';
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}
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});
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Object.defineProperty(re, 'ignoreCase', {
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get: function () {
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calls += 'i';
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}
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});
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Object.defineProperty(re, 'multiline', {
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get: function () {
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calls += 'm';
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}
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});
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Object.defineProperty(re, 'dotAll', {
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get: function () {
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calls += 's';
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}
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});
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Object.defineProperty(re, 'unicode', {
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get: function () {
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calls += 'u';
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}
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});
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Object.defineProperty(re, 'sticky', {
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get: function () {
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calls += 'y';
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}
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});
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flags(re);
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st.equal(calls, 'dgimsuy', 'getters are called in expected order');
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st.end();
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});
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};
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