Best JavaScript code snippet using mocha
util.js
Source:util.js  
...91 * @param {*} value The value to inspect.92 * @param {string} typeHint The type of the value93 * @returns {string}94 */95function emptyRepresentation(value, typeHint) {96    switch (typeHint) {97        case 'function':98            return '[Function]';99        case 'object':100            return '{}';101        case 'array':102            return '[]';103        default:104            return value.toString();105    }106}107/**108 * Takes some variable and asks `Object.prototype.toString()` what it thinks it109 * is.110 *111 * @private112 * @see https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Object/toString113 * @param {*} value The value to test.114 * @returns {string} Computed type115 * @example116 * type({}) // 'object'117 * type([]) // 'array'118 * type(1) // 'number'119 * type(false) // 'boolean'120 * type(Infinity) // 'number'121 * type(null) // 'null'122 * type(new Date()) // 'date'123 * type(/foo/) // 'regexp'124 * type('type') // 'string'125 * type(global) // 'global'126 * type(new String('foo') // 'object'127 */128var type = (exports.type = function type(value) {129    if (value === undefined) {130        return 'undefined';131    } else if (value === null) {132        return 'null';133    } else if (Buffer.isBuffer(value)) {134        return 'buffer';135    }136    return Object.prototype.toString137        .call(value)138        .replace(/^\[.+\s(.+?)]$/, '$1')139        .toLowerCase();140});141/**142 * Stringify `value`. Different behavior depending on type of value:143 *144 * - If `value` is undefined or null, return `'[undefined]'` or `'[null]'`, respectively.145 * - If `value` is not an object, function or array, return result of `value.toString()` wrapped in double-quotes.146 * - If `value` is an *empty* object, function, or array, return result of function147 *   {@link emptyRepresentation}.148 * - If `value` has properties, call {@link exports.canonicalize} on it, then return result of149 *   JSON.stringify().150 *151 * @private152 * @see exports.type153 * @param {*} value154 * @return {string}155 */156exports.stringify = function (value) {157    var typeHint = type(value);158    if (!~['object', 'array', 'function'].indexOf(typeHint)) {159        if (typeHint === 'buffer') {160            var json = Buffer.prototype.toJSON.call(value);161            // Based on the toJSON result162            return jsonStringify(163                json.data && json.type ? json.data : json,164                2165            ).replace(/,(\n|$)/g, '$1');166        }167        // IE7/IE8 has a bizarre String constructor; needs to be coerced168        // into an array and back to obj.169        if (typeHint === 'string' && typeof value === 'object') {170            value = value.split('').reduce(function (acc, char, idx) {171                acc[idx] = char;172                return acc;173            }, {});174            typeHint = 'object';175        } else {176            return jsonStringify(value);177        }178    }179    for (var prop in value) {180        if (Object.prototype.hasOwnProperty.call(value, prop)) {181            return jsonStringify(182                exports.canonicalize(value, null, typeHint),183                2184            ).replace(/,(\n|$)/g, '$1');185        }186    }187    return emptyRepresentation(value, typeHint);188};189/**190 * like JSON.stringify but more sense.191 *192 * @private193 * @param {Object}  object194 * @param {number=} spaces195 * @param {number=} depth196 * @returns {*}197 */198function jsonStringify(object, spaces, depth) {199    if (typeof spaces === 'undefined') {200        // primitive types201        return _stringify(object);202    }203    depth = depth || 1;204    var space = spaces * depth;205    var str = Array.isArray(object) ? '[' : '{';206    var end = Array.isArray(object) ? ']' : '}';207    var length =208        typeof object.length === 'number'209            ? object.length210            : Object.keys(object).length;211    // `.repeat()` polyfill212    function repeat(s, n) {213        return new Array(n).join(s);214    }215    function _stringify(val) {216        switch (type(val)) {217            case 'null':218            case 'undefined':219                val = '[' + val + ']';220                break;221            case 'array':222            case 'object':223                val = jsonStringify(val, spaces, depth + 1);224                break;225            case 'boolean':226            case 'regexp':227            case 'symbol':228            case 'number':229                val =230                    val === 0 && 1 / val === -Infinity // `-0`231                        ? '-0'232                        : val.toString();233                break;234            case 'date':235                var sDate = isNaN(val.getTime()) ? val.toString() : val.toISOString();236                val = '[Date: ' + sDate + ']';237                break;238            case 'buffer':239                var json = val.toJSON();240                // Based on the toJSON result241                json = json.data && json.type ? json.data : json;242                val = '[Buffer: ' + jsonStringify(json, 2, depth + 1) + ']';243                break;244            default:245                val =246                    val === '[Function]' || val === '[Circular]'247                        ? val248                        : JSON.stringify(val); // string249        }250        return val;251    }252    for (var i in object) {253        if (!Object.prototype.hasOwnProperty.call(object, i)) {254            continue; // not my business255        }256        --length;257        str +=258            '\n ' +259            repeat(' ', space) +260            (Array.isArray(object) ? '' : '"' + i + '": ') + // key261            _stringify(object[i]) + // value262            (length ? ',' : ''); // comma263    }264    return (265        str +266        // [], {}267        (str.length !== 1 ? '\n' + repeat(' ', --space) + end : end)268    );269}270/**271 * Return a new Thing that has the keys in sorted order. Recursive.272 *273 * If the Thing...274 * - has already been seen, return string `'[Circular]'`275 * - is `undefined`, return string `'[undefined]'`276 * - is `null`, return value `null`277 * - is some other primitive, return the value278 * - is not a primitive or an `Array`, `Object`, or `Function`, return the value of the Thing's `toString()` method279 * - is a non-empty `Array`, `Object`, or `Function`, return the result of calling this function again.280 * - is an empty `Array`, `Object`, or `Function`, return the result of calling `emptyRepresentation()`281 *282 * @private283 * @see {@link exports.stringify}284 * @param {*} value Thing to inspect.  May or may not have properties.285 * @param {Array} [stack=[]] Stack of seen values286 * @param {string} [typeHint] Type hint287 * @return {(Object|Array|Function|string|undefined)}288 */289exports.canonicalize = function canonicalize(value, stack, typeHint) {290    var canonicalizedObj;291    /* eslint-disable no-unused-vars */292    var prop;293    /* eslint-enable no-unused-vars */294    typeHint = typeHint || type(value);295    function withStack(value, fn) {296        stack.push(value);297        fn();298        stack.pop();299    }300    stack = stack || [];301    if (stack.indexOf(value) !== -1) {302        return '[Circular]';303    }304    switch (typeHint) {305        case 'undefined':306        case 'buffer':307        case 'null':308            canonicalizedObj = value;309            break;310        case 'array':311            withStack(value, function () {312                canonicalizedObj = value.map(function (item) {313                    return exports.canonicalize(item, stack);314                });315            });316            break;317        case 'function':318            /* eslint-disable guard-for-in */319            for (prop in value) {320                canonicalizedObj = {};321                break;322            }323            /* eslint-enable guard-for-in */324            if (!canonicalizedObj) {325                canonicalizedObj = emptyRepresentation(value, typeHint);326                break;327            }328        /* falls through */329        case 'object':330            canonicalizedObj = canonicalizedObj || {};331            withStack(value, function () {332                Object.keys(value)333                    .sort()334                    .forEach(function (key) {335                        canonicalizedObj[key] = exports.canonicalize(value[key], stack);336                    });337            });338            break;339        case 'date':...utils.js
Source:utils.js  
...255 * @param {*} value Value to inspect256 * @param {string} [type] The type of the value, if known.257 * @returns {string}258 */259var emptyRepresentation = function emptyRepresentation(value, type) {260  type = type || exports.type(value);261  switch(type) {262    case 'function':263      return '[Function]';264    case 'object':265      return '{}';266    case 'array':267      return '[]';268    default:269      return value.toString();270  }271};272/**273 * Takes some variable and asks `{}.toString()` what it thinks it is.274 * @param {*} value Anything275 * @example276 * type({}) // 'object'277 * type([]) // 'array'278 * type(1) // 'number'279 * type(false) // 'boolean'280 * type(Infinity) // 'number'281 * type(null) // 'null'282 * type(new Date()) // 'date'283 * type(/foo/) // 'regexp'284 * type('type') // 'string'285 * type(global) // 'global'286 * @api private287 * @see https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Object/toString288 * @returns {string}289 */290exports.type = function type(value) {291  if (typeof Buffer !== 'undefined' && Buffer.isBuffer(value)) {292    return 'buffer';293  }294  return Object.prototype.toString.call(value)295    .replace(/^\[.+\s(.+?)\]$/, '$1')296    .toLowerCase();297};298/**299 * @summary Stringify `value`.300 * @description Different behavior depending on type of value.301 * - If `value` is undefined or null, return `'[undefined]'` or `'[null]'`, respectively.302 * - If `value` is not an object, function or array, return result of `value.toString()` wrapped in double-quotes.303 * - If `value` is an *empty* object, function, or array, return result of function304 *   {@link emptyRepresentation}.305 * - If `value` has properties, call {@link exports.canonicalize} on it, then return result of306 *   JSON.stringify().307 *308 * @see exports.type309 * @param {*} value310 * @return {string}311 * @api private312 */313exports.stringify = function(value) {314  var prop,315    type = exports.type(value);316  if (type === 'null' || type === 'undefined') {317    return '[' + type + ']';318  }319  if (type === 'date') {320    return '[Date: ' + value.toISOString() + ']';321  }322  if (!~exports.indexOf(['object', 'array', 'function'], type)) {323    return value.toString();324  }325  for (prop in value) {326    if (value.hasOwnProperty(prop)) {327      return JSON.stringify(exports.canonicalize(value), null, 2).replace(/,(\n|$)/g, '$1');328    }329  }330  return emptyRepresentation(value, type);331};332/**333 * Return if obj is a Buffer334 * @param {Object} arg335 * @return {Boolean}336 * @api private337 */338exports.isBuffer = function (arg) {339  return typeof Buffer !== 'undefined' && Buffer.isBuffer(arg);340};341/**342 * @summary Return a new Thing that has the keys in sorted order.  Recursive.343 * @description If the Thing...344 * - has already been seen, return string `'[Circular]'`345 * - is `undefined`, return string `'[undefined]'`346 * - is `null`, return value `null`347 * - is some other primitive, return the value348 * - is not a primitive or an `Array`, `Object`, or `Function`, return the value of the Thing's `toString()` method349 * - is a non-empty `Array`, `Object`, or `Function`, return the result of calling this function again.350 * - is an empty `Array`, `Object`, or `Function`, return the result of calling `emptyRepresentation()`351 *352 * @param {*} value Thing to inspect.  May or may not have properties.353 * @param {Array} [stack=[]] Stack of seen values354 * @return {(Object|Array|Function|string|undefined)}355 * @see {@link exports.stringify}356 * @api private357 */358exports.canonicalize = function(value, stack) {359  var canonicalizedObj,360    type = exports.type(value),361    prop,362    withStack = function withStack(value, fn) {363      stack.push(value);364      fn();365      stack.pop();366    };367  stack = stack || [];368  if (exports.indexOf(stack, value) !== -1) {369    return '[Circular]';370  }371  switch(type) {372    case 'undefined':373      canonicalizedObj = '[undefined]';374      break;375    case 'buffer':376    case 'null':377      canonicalizedObj = value;378      break;379    case 'array':380      withStack(value, function () {381        canonicalizedObj = exports.map(value, function (item) {382          return exports.canonicalize(item, stack);383        });384      });385      break;386    case 'date':387      canonicalizedObj = '[Date: ' + value.toISOString() + ']';388      break;389    case 'function':390      for (prop in value) {391        canonicalizedObj = {};392        break;393      }394      if (!canonicalizedObj) {395        canonicalizedObj = emptyRepresentation(value, type);396        break;397      }398    /* falls through */399    case 'object':400      canonicalizedObj = canonicalizedObj || {};401      withStack(value, function () {402        exports.forEach(exports.keys(value).sort(), function (key) {403          canonicalizedObj[key] = exports.canonicalize(value[key], stack);404        });405      });406      break;407    case 'number':408    case 'boolean':409      canonicalizedObj = value;...methods.js
Source:methods.js  
...6exports.nullCheck = function (type, value) {7	if(value)8		return value;9	else10		return emptyRepresentation(type);11};12function emptyRepresentation(type){13	switch(type){14		case Boolean:15			return false;16		case Number:17			return 0;18		case String:19			return "";20		default:21			return null;22	}23}24// Date to String [2015-07-14]25exports.convertDateToParameter = function(date){26	var m = addZero(date.getMonth()+1);  // 10...Using AI Code Generation
1const mocha = require('mocha');2const assert = require('assert');3describe('Array', function() {4  describe('#indexOf()', function() {5    it('should return -1 when the value is not present', function() {6      assert.equal([1,2,3].indexOf(4), -1);7    });8  });9});10    #indexOf()11  0 passing (10ms)12  1) Array #indexOf()13      at Context.<anonymous> (test.js:8:18)14const mocha = require('mocha');15const assert = require('assert');16describe('Array', function() {17  describe('#indexOf()', function() {18    it('should return -1 when the value is not present', function() {19      assert.equal([1,2,3].indexOf(4), -1);20    });21  });22});23    #indexOf()24  0 passing (10ms)25  1) Array #indexOf()26      at Context.<anonymous> (test.js:8:18)27const mocha = require('mocha');28const assert = require('assert');29describe('Array', function() {30  describe('#indexOf()', function() {31    it('should return -1 when the value is not present', function() {32      assert.equal([1,2,3].indexOf(4), -1);33    });34  });35});36    #indexOf()37  0 passing (10ms)38  1) Array #indexOf()Using AI Code Generation
1var assert = require('assert');2var emptyRepresentation = require('../emptyRepresentation.js');3describe('emptyRepresentation', function () {4    it('should return true for empty array', function () {5        assert.equal(true, emptyRepresentation([]));6    });7    it('should return true for empty object', function () {8        assert.equal(true, emptyRepresentation({}));9    });10    it('should return false for non-empty array', function () {11        assert.equal(false, emptyRepresentation([1, 2, 3]));12    });13    it('should return false for non-empty object', function () {14        assert.equal(false, emptyRepresentation({a: 1, b: 2}));15    });16});17module.exports = function (obj) {18    if (obj instanceof Array) {19        return obj.length === 0;20    }21    else if (obj instanceof Object) {22        return Object.keys(obj).length === 0;23    }24    else {25        return false;26    }27};28{29    "scripts": {30    },31    "devDependencies": {32    }33}Using AI Code Generation
1var emptyRepresentation = require('mocha/lib/reporters/base').emptyRepresentation;2var assert = require('assert');3describe('emptyRepresentation', function() {4    it('should return empty string for empty array', function() {5        assert.equal(emptyRepresentation([]), '');6    });7    it('should return empty string for empty object', function() {8        assert.equal(emptyRepresentation({}), '');9    });10    it('should return empty string for null', function() {11        assert.equal(emptyRepresentation(null), '');12    });13    it('should return empty string for undefined', function() {14        assert.equal(emptyRepresentation(undefined), '');15    });16    it('should return empty string for empty string', function() {17        assert.equal(emptyRepresentation(''), '');18    });19    it('should return empty string for 0', function() {20        assert.equal(emptyRepresentation(0), '');21    });22    it('should return empty string for false', function() {23        assert.equal(emptyRepresentation(false), '');24    });25    it('should return string for non-empty array', function() {26        assert.equal(emptyRepresentation([1]), '[ 1 ]');27    });28    it('should return string for non-empty object', function() {29        assert.equal(emptyRepresentation({a: 1}), '{ a: 1 }');30    });31    it('should return string for non-empty string', function() {32        assert.equal(emptyRepresentation('a'), 'a');33    });34    it('should return string for non-zero number', function() {35        assert.equal(emptyRepresentation(1), '1');36    });37    it('should return string for true', function() {38        assert.equal(emptyRepresentation(true), 'true');39    });40});Using AI Code Generation
1describe('Mocha', function() {2  describe('emptyRepresentation()', function() {3    it('should return the empty string', function() {4      assert.equal(Mocha.emptyRepresentation(), '');5    });6  });7});8describe('Mocha', function() {9  describe('emptyRepresentation()', function() {10    it('should return the empty string', function() {11      assert.equal(Mocha.emptyRepresentation(), '');12    });13  });14});15describe('Mocha', function() {16  describe('emptyRepresentation()', function() {17    it('should return the empty string', function() {18      assert.equal(Mocha.emptyRepresentation(), '');19    });20  });21});22describe('Mocha', function() {23  describe('emptyRepresentation()', function() {24    it('should return the empty string', function() {25      assert.equal(Mocha.emptyRepresentation(), '');26    });27  });28});29describe('Mocha', function() {30  describe('emptyRepresentation()', function() {31    it('should return the empty string', function() {32      assert.equal(Mocha.emptyRepresentation(), '');33    });34  });35});36describe('Mocha', function() {37  describe('emptyRepresentation()', function() {38    it('should return the empty string', function() {39      assert.equal(Mocha.emptyRepresentation(), '');40    });41  });42});43describe('Mocha', function() {44  describe('emptyRepresentation()', function() {45    it('should return the empty string', function() {46      assert.equal(Mocha.emptyRepresentation(), '');47    });48  });49});50describe('Mocha', function() {51  describe('emptyRepresentation()', function() {52    it('should return the empty string', function() {53      assert.equal(Mocha.emptyRepresentation(), '');54    });55  });56});57describe('Mocha', function() {58  describe('emptyRepresentation()', function() {Using AI Code Generation
1function emptyRepresentation(){2    var empty = {};3    return empty;4}5function emptyRepresentation(){6    var empty = {};7    return empty;8}9function emptyRepresentation(){10    var empty = {};11    return empty;12}13function emptyRepresentation(){14    var empty = {};15    return empty;16}17function emptyRepresentation(){18    var empty = {};19    return empty;20}21function emptyRepresentation(){22    var empty = {};23    return empty;24}25function emptyRepresentation(){26    var empty = {};27    return empty;28}29function emptyRepresentation(){30    var empty = {};31    return empty;32}33function emptyRepresentation(){34    var empty = {};35    return empty;36}37function emptyRepresentation(){38    var empty = {};39    return empty;40}41function emptyRepresentation(){42    var empty = {};43    return empty;44}45function emptyRepresentation(){46    var empty = {};47    return empty;48}49function emptyRepresentation(){50    var empty = {};51    return empty;52}53function emptyRepresentation(){54    var empty = {};55    return empty;56}57function emptyRepresentation(){58    var empty = {};59    return empty;60}61function emptyRepresentation(){62    var empty = {};63    return empty;64}65function emptyRepresentation(){66    var empty = {};67    return empty;68}69function emptyRepresentation(){70    var empty = {};71    return empty;72}Using AI Code Generation
1var assert = require('assert');2function emptyRepresentation(obj) {3  return obj != null && Object.keys(obj).length === 0;4}5describe('emptyRepresentation', function() {6  it('should return true if object is empty', function() {7    assert.equal(emptyRepresentation({}), true);8  });9  it('should return false if object is not empty', function() {10    assert.equal(emptyRepresentation({a: 1}), false);11  });12  it('should return true if object is null', function() {13    assert.equal(emptyRepresentation(null), true);14  });15});Learn to execute automation testing from scratch with LambdaTest Learning Hub. Right from setting up the prerequisites to run your first automation test, to following best practices and diving deeper into advanced test scenarios. LambdaTest Learning Hubs compile a list of step-by-step guides to help you be proficient with different test automation frameworks i.e. Selenium, Cypress, TestNG etc.
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