Best JavaScript code snippet using chai
configuration.js
Source:configuration.js
...54 delete chai.Assertion.prototype.tmpChainableMethod;55 });56 describe('expect interface', function () {57 // Functions that always throw an error58 function badPropertyAssertion() {59 expect(42).to.be.false;60 }61 function badOverwrittenPropertyAssertion() {62 expect(42).tmpProperty;63 }64 function badMethodAssertion() {65 expect(42).to.equal(false);66 }67 function badOverwrittenMethodAssertion() {68 expect(42).tmpMethod();69 }70 function badChainableMethodAssertion() {71 expect(42).to.be.a('string');72 }73 function badOverwrittenChainableMethodAssertion() {74 expect(42).tmpChainableMethod();75 }76 describe('when true', function () {77 describe('failed property assertions', function () {78 var caughtErr = '__PRETEST__';79 before(function () {80 chai.config.includeStack = true;81 try {82 badPropertyAssertion();83 } catch (err) {84 caughtErr = err;85 }86 });87 it('should include Chai frames in stack trace', function () {88 expect(caughtErr.stack).to.contain('propertyGetter');89 if (typeof Proxy !== 'undefined' && typeof Reflect !== 'undefined') {90 expect(caughtErr.stack).to.contain('proxyGetter');91 }92 });93 it('should include user frames in stack trace', function () {94 expect(caughtErr.stack).to.contain('badPropertyAssertion');95 });96 });97 describe('failed overwritten property assertions', function () {98 var caughtErr = '__PRETEST__';99 before(function () {100 chai.config.includeStack = true;101 try {102 badOverwrittenPropertyAssertion();103 } catch (err) {104 caughtErr = err;105 }106 });107 it('should include Chai frames in stack trace', function () {108 expect(caughtErr.stack).to.contain('overwritingPropertyGetter');109 if (typeof Proxy !== 'undefined' && typeof Reflect !== 'undefined') {110 expect(caughtErr.stack).to.contain('proxyGetter');111 }112 });113 it('should include user frames in stack trace', function () {114 expect(caughtErr.stack).to.contain('badOverwrittenPropertyAssertion');115 });116 });117 describe('failed method assertions', function () {118 var caughtErr = '__PRETEST__';119 before(function () {120 chai.config.includeStack = true;121 try {122 badMethodAssertion();123 } catch (err) {124 caughtErr = err;125 }126 });127 it('should include Chai frames in stack trace', function () {128 expect(caughtErr.stack).to.contain('methodWrapper');129 });130 it('should include user frames in stack trace', function () {131 expect(caughtErr.stack).to.contain('badMethodAssertion');132 });133 });134 describe('failed overwritten method assertions', function () {135 var caughtErr = '__PRETEST__';136 before(function () {137 chai.config.includeStack = true;138 try {139 badOverwrittenMethodAssertion();140 } catch (err) {141 caughtErr = err;142 }143 });144 it('should include Chai frames in stack trace', function () {145 expect(caughtErr.stack).to.contain('overwritingMethodWrapper');146 });147 it('should include user frames in stack trace', function () {148 expect(caughtErr.stack).to.contain('badOverwrittenMethodAssertion');149 });150 });151 describe('failed chainable method assertions', function () {152 var caughtErr = '__PRETEST__';153 before(function () {154 chai.config.includeStack = true;155 try {156 badChainableMethodAssertion();157 } catch (err) {158 caughtErr = err;159 }160 });161 it('should include Chai frames in stack trace', function () {162 expect(caughtErr.stack).to.contain('chainableMethodWrapper');163 });164 it('should include user frames in stack trace', function () {165 expect(caughtErr.stack).to.contain('badChainableMethodAssertion');166 });167 });168 describe('failed overwritten chainable method assertions', function () {169 var caughtErr = '__PRETEST__';170 before(function () {171 chai.config.includeStack = true;172 try {173 badOverwrittenChainableMethodAssertion();174 } catch (err) {175 caughtErr = err;176 }177 });178 it('should include Chai frames in stack trace', function () {179 expect(caughtErr.stack).to.contain('overwritingChainableMethodWrapper');180 });181 it('should include user frames in stack trace', function () {182 expect(caughtErr.stack).to.contain('badOverwrittenChainableMethodAssertion');183 });184 });185 });186 describe('when false', function () {187 describe('failed property assertions', function () {188 var caughtErr = '__PRETEST__';189 before(function () {190 chai.config.includeStack = false;191 try {192 badPropertyAssertion();193 } catch (err) {194 caughtErr = err;195 }196 });197 it('should not include Chai frames in stack trace', function () {198 expect(caughtErr.stack).to.not.contain('propertyGetter');199 if (typeof Proxy !== 'undefined' && typeof Reflect !== 'undefined') {200 expect(caughtErr.stack).to.not.contain('proxyGetter');201 }202 });203 it('should include user frames in stack trace', function () {204 expect(caughtErr.stack).to.contain('badPropertyAssertion');205 });206 });207 describe('failed overwritten property assertions', function () {208 var caughtErr = '__PRETEST__';209 before(function () {210 chai.config.includeStack = false;211 try {212 badOverwrittenPropertyAssertion();213 } catch (err) {214 caughtErr = err;215 }216 });217 it('should not include Chai frames in stack trace', function () {218 expect(caughtErr.stack).to.not.contain('overwritingPropertyGetter');219 if (typeof Proxy !== 'undefined' && typeof Reflect !== 'undefined') {220 expect(caughtErr.stack).to.not.contain('proxyGetter');221 }222 });223 it('should include user frames in stack trace', function () {224 expect(caughtErr.stack).to.contain('badOverwrittenPropertyAssertion');225 });226 });227 describe('failed method assertions', function () {228 var caughtErr = '__PRETEST__';229 before(function () {230 chai.config.includeStack = false;231 try {232 badMethodAssertion();233 } catch (err) {234 caughtErr = err;235 }236 });237 it('should not include Chai frames in stack trace', function () {238 expect(caughtErr.stack).to.not.contain('methodWrapper');239 });240 it('should include user frames in stack trace', function () {241 expect(caughtErr.stack).to.contain('badMethodAssertion');242 });243 });244 describe('failed overwritten method assertions', function () {245 var caughtErr = '__PRETEST__';246 before(function () {247 chai.config.includeStack = false;248 try {249 badOverwrittenMethodAssertion();250 } catch (err) {251 caughtErr = err;252 }253 });254 it('should not include Chai frames in stack trace', function () {255 expect(caughtErr.stack).to.not.contain('overwritingMethodWrapper');256 });257 it('should include user frames in stack trace', function () {258 expect(caughtErr.stack).to.contain('badOverwrittenMethodAssertion');259 });260 });261 describe('failed chainable method assertions', function () {262 var caughtErr = '__PRETEST__';263 before(function () {264 chai.config.includeStack = false;265 try {266 badChainableMethodAssertion();267 } catch (err) {268 caughtErr = err;269 }270 });271 it('should not include Chai frames in stack trace', function () {272 expect(caughtErr.stack).to.not.contain('chainableMethodWrapper');273 });274 it('should include user frames in stack trace', function () {275 expect(caughtErr.stack).to.contain('badChainableMethodAssertion');276 });277 });278 describe('failed overwritten chainable method assertions', function () {279 var caughtErr = '__PRETEST__';280 before(function () {281 chai.config.includeStack = false;282 try {283 badOverwrittenChainableMethodAssertion();284 } catch (err) {285 caughtErr = err;286 }287 });288 it('should not include Chai frames in stack trace', function () {289 expect(caughtErr.stack).to.not.contain('overwritingChainableMethodWrapper');290 });291 it('should include user frames in stack trace', function () {292 expect(caughtErr.stack).to.contain('badOverwrittenChainableMethodAssertion');293 });294 });295 });296 });297 describe('should interface', function () {298 // Functions that always throw an error299 function badPropertyAssertion() {300 (42).should.be.false;301 }302 function badOverwrittenPropertyAssertion() {303 (42).should.tmpProperty;304 }305 function badMethodAssertion() {306 (42).should.equal(false);307 }308 function badOverwrittenMethodAssertion() {309 (42).should.tmpMethod();310 }311 function badChainableMethodAssertion() {312 (42).should.be.a('string');313 }314 function badOverwrittenChainableMethodAssertion() {315 (42).should.tmpChainableMethod();316 }317 describe('when true', function () {318 describe('failed property assertions', function () {319 var caughtErr = '__PRETEST__';320 before(function () {321 chai.config.includeStack = true;322 try {323 badPropertyAssertion();324 } catch (err) {325 caughtErr = err;326 }327 });328 it('should include Chai frames in stack trace', function () {329 expect(caughtErr.stack).to.contain('propertyGetter');330 if (typeof Proxy !== 'undefined' && typeof Reflect !== 'undefined') {331 expect(caughtErr.stack).to.contain('proxyGetter');332 }333 });334 it('should include user frames in stack trace', function () {335 expect(caughtErr.stack).to.contain('badPropertyAssertion');336 });337 });338 describe('failed overwritten property assertions', function () {339 var caughtErr = '__PRETEST__';340 before(function () {341 chai.config.includeStack = true;342 try {343 badOverwrittenPropertyAssertion();344 } catch (err) {345 caughtErr = err;346 }347 });348 it('should include Chai frames in stack trace', function () {349 expect(caughtErr.stack).to.contain('overwritingPropertyGetter');350 if (typeof Proxy !== 'undefined' && typeof Reflect !== 'undefined') {351 expect(caughtErr.stack).to.contain('proxyGetter');352 }353 });354 it('should include user frames in stack trace', function () {355 expect(caughtErr.stack).to.contain('badOverwrittenPropertyAssertion');356 });357 });358 describe('failed method assertions', function () {359 var caughtErr = '__PRETEST__';360 before(function () {361 chai.config.includeStack = true;362 try {363 badMethodAssertion();364 } catch (err) {365 caughtErr = err;366 }367 });368 it('should include Chai frames in stack trace', function () {369 expect(caughtErr.stack).to.contain('methodWrapper');370 });371 it('should include user frames in stack trace', function () {372 expect(caughtErr.stack).to.contain('badMethodAssertion');373 });374 });375 describe('failed overwritten method assertions', function () {376 var caughtErr = '__PRETEST__';377 before(function () {378 chai.config.includeStack = true;379 try {380 badOverwrittenMethodAssertion();381 } catch (err) {382 caughtErr = err;383 }384 });385 it('should include Chai frames in stack trace', function () {386 expect(caughtErr.stack).to.contain('overwritingMethodWrapper');387 });388 it('should include user frames in stack trace', function () {389 expect(caughtErr.stack).to.contain('badOverwrittenMethodAssertion');390 });391 });392 describe('failed chainable method assertions', function () {393 var caughtErr = '__PRETEST__';394 before(function () {395 chai.config.includeStack = true;396 try {397 badChainableMethodAssertion();398 } catch (err) {399 caughtErr = err;400 }401 });402 it('should include Chai frames in stack trace', function () {403 expect(caughtErr.stack).to.contain('chainableMethodWrapper');404 });405 it('should include user frames in stack trace', function () {406 expect(caughtErr.stack).to.contain('badChainableMethodAssertion');407 });408 });409 describe('failed overwritten chainable method assertions', function () {410 var caughtErr = '__PRETEST__';411 before(function () {412 chai.config.includeStack = true;413 try {414 badOverwrittenChainableMethodAssertion();415 } catch (err) {416 caughtErr = err;417 }418 });419 it('should include Chai frames in stack trace', function () {420 expect(caughtErr.stack).to.contain('overwritingChainableMethodWrapper');421 });422 it('should include user frames in stack trace', function () {423 expect(caughtErr.stack).to.contain('badOverwrittenChainableMethodAssertion');424 });425 });426 });427 describe('when false', function () {428 describe('failed property assertions', function () {429 var caughtErr = '__PRETEST__';430 before(function () {431 chai.config.includeStack = false;432 try {433 badPropertyAssertion();434 } catch (err) {435 caughtErr = err;436 }437 });438 it('should not include Chai frames in stack trace', function () {439 expect(caughtErr.stack).to.not.contain('propertyGetter');440 if (typeof Proxy !== 'undefined' && typeof Reflect !== 'undefined') {441 expect(caughtErr.stack).to.not.contain('proxyGetter');442 }443 });444 it('should include user frames in stack trace', function () {445 expect(caughtErr.stack).to.contain('badPropertyAssertion');446 });447 });...
Using AI Code Generation
1var assert = require('chai').assert;2var expect = require('chai').expect;3var should = require('chai').should();4var chai = require('chai');5var chaiAsPromised = require('chai-as-promised');6chai.use(chaiAsPromised);7var BadPropertyAssertion = require('bad-property-assertion').BadPropertyAssertion;8it('should fail', function(){9 var obj = {10 };11 var badPropertyAssertion = new BadPropertyAssertion(obj);12 expect(badPropertyAssertion).to.have.property('name');13 expect(badPropertyAssertion).to.have.property('age');14 expect(badPropertyAssertion).to.have.property('address');15});16AssertionError: expected { Object (name, age) } to have a property 'address'
Using AI Code Generation
1var chai = require('chai');2var assert = chai.assert;3var expect = chai.expect;4var should = chai.should();5var chaiAsPromised = require('chai-as-promised');6chai.use(chaiAsPromised);7var chai = require('chai');8var assert = chai.assert;9var expect = chai.expect;10var should = chai.should();11var chaiAsPromised = require('chai-as-promised');12chai.use(chaiAsPromised);13var chai = require('chai');14var assert = chai.assert;15var expect = chai.expect;16var should = chai.should();17var chaiAsPromised = require('chai-as-promised');18chai.use(chaiAsPromised);19var chai = require('chai');20var assert = chai.assert;21var expect = chai.expect;22var should = chai.should();23var chaiAsPromised = require('chai-as-promised');24chai.use(chaiAsPromised);25var chai = require('chai');26var assert = chai.assert;27var expect = chai.expect;28var should = chai.should();29var chaiAsPromised = require('chai-as-promised');30chai.use(chaiAsPromised);31var chai = require('chai');32var assert = chai.assert;33var expect = chai.expect;34var should = chai.should();35var chaiAsPromised = require('chai-as-promised');36chai.use(chaiAsPromised);37var chai = require('chai');38var assert = chai.assert;39var expect = chai.expect;40var should = chai.should();41var chaiAsPromised = require('chai-as-promised');42chai.use(chaiAsPromised);43var chai = require('chai');44var assert = chai.assert;45var expect = chai.expect;46var should = chai.should();47var chaiAsPromised = require('chai-as-promised');48chai.use(chaiAsPromised);49var chai = require('chai');50var assert = chai.assert;51var expect = chai.expect;52var should = chai.should();53var chaiAsPromised = require('chai-as-promised');54chai.use(chai
Using AI Code Generation
1const chai = require('chai');2const expect = chai.expect;3const chaiAsPromised = require('chai-as-promised');4chai.use(chaiAsPromised);5const promise = new Promise((resolve, reject) => {6 resolve(1);7});8expect(promise).to.eventually.have.property('badProperty').that.is.a('number');9expect(promise).to.eventually.have.property('badProperty').that.is.a('string');10expect(promise).to.eventually.have.property('badProperty').that.is.a('boolean');11expect(promise).to.eventually.have.property('badProperty').that.is.a('function');12expect(promise).to.eventually.have.property('badProperty').that.is.a('object');13expect(promise).to.eventually.have.property('badProperty').that.is.a('array');14expect(promise).to.eventually.have.property('badProperty').that.is.a('symbol');15expect(promise).to.eventually.have.property('badProperty').that.is.a('map');16expect(promise).to.eventually.have.property('badProperty').that.is.a('set');17expect(promise).to.eventually.have.property('badProperty').that.is.a('weakmap');18expect(promise).to.eventually.have.property('badProperty').that.is.a('weakset');19expect(promise).to.eventually.have.property('badProperty').that.is.a('date');20expect(promise).to.eventually.have.property('badProperty').that.is.a('error');21expect(promise).to.eventually.have.property('badProperty').that.is.a('regexp');22expect(promise).to.eventually.have.property('badProperty').that.is.a('int8array');23expect(promise).to.eventually.have.property('badProperty').that.is.a('uint8array');24expect(promise).to.eventually.have.property('badProperty').that.is.a('uint8clampedarray');25expect(promise).to.eventually.have.property('badProperty').that.is.a('int16array');26expect(promise).to.eventually.have.property('badProperty').that.is.a('uint16array');27expect(promise).to.eventually.have.property('badProperty').that.is.a('int32array');28expect(promise).to.eventually.have.property('badProperty').that.is.a('uint32array');29expect(promise).to.eventually.have.property('badProperty').that.is.a('float32array');30expect(promise).to.eventually.have
Using AI Code Generation
1var chai = require('chai');2var chaiAsPromised = require('chai-as-promised');3chai.use(chaiAsPromised);4var expect = chai.expect;5describe('Test', function() {6 it('should fail', function() {7 var promise = Promise.reject(new Error('error'));8 return expect(promise).to.be.rejectedWith('error');9 });10});11 0 passing (9ms)12 at Context.it (test.js:10:38)13 at processImmediate (internal/timers.js:456:21)14return expect(promise).to.be.rejectedWith('error').then(function() {15 throw new Error('Expected to fail, but did not');16});17return expect(promise).to.be.rejectedWith('error').catch(function(err) {18 expect(err).to.be.an.instanceof(AssertionError);19 expect(err).to.have.property('message').that.equals('expected promise to be rejected with \'error\', but it was rejected with Error: error');20});
Using AI Code Generation
1var chai = require('chai');2var expect = chai.expect;3describe('Bad Property Assertion', function() {4 it('should throw an error', function() {5 expect({foo: 'bar'}).to.have.badProperty('foo');6 });7});8module.exports = function(_super) {9 return function() {10 _super.apply(this, arguments);11 var flag = this._obj;12 this.addProperty('badProperty', function() {13 flag = true;14 });15 };16};17module.exports = function Assertion(obj, msg, ssfi) {18 this._obj = obj;19 this._ssfi = ssfi;20 this._obj = flag(this, 'object', obj);21 this._negate = flag(this, 'negate', false);22 this._explicitType = flag(this, 'explicit type', false);23 this._msg = msg;24 this._ssfi = ssfi;25 this._obj = flag(this, 'object', obj);26 this._negate = flag(this, 'negate', false);27 this._explicitType = flag(this, 'explicit type', false);28 this._msg = msg;29 this._ssfi = ssfi;30 this._obj = flag(this, 'object', obj);31 this._negate = flag(this, 'negate', false);32 this._explicitType = flag(this, 'explicit type', false);33 this._msg = msg;34 this._ssfi = ssfi;35 this._obj = flag(this, 'object', obj);36 this._negate = flag(this, 'negate', false);37 this._explicitType = flag(this, 'explicit type', false);38 this._msg = msg;39 this._ssfi = ssfi;40 this._obj = flag(this, 'object', obj);41 this._negate = flag(this, 'negate', false);42 this._explicitType = flag(this, 'explicit type', false);43 this._msg = msg;44 this._ssfi = ssfi;45 this._obj = flag(this, 'object', obj);46 this._negate = flag(this, 'negate', false);47 this._explicitType = flag(this, 'explicit type', false
Using AI Code Generation
1var chai = require('chai');2chai.use(require('chai-bad-assertions'));3var expect = chai.expect;4expect('hello').to.have.badPropertyAssertion('length', 5);5expect('hello').to.have.badPropertyAssertion('length', 6);6expect(function() {7 expect('hello').to.have.badPropertyAssertion('length', 5);8}).to.throw(chai.AssertionError);9var chai = require('chai');10chai.use(require('chai-bad-assertions'));11var expect = chai.expect;12expect('hello').to.have.badPropertyAssertion('length', 5);13expect('hello').to.have.badPropertyAssertion('length', 6);14expect(function() {15 expect('hello').to.have.badPropertyAssertion('length', 5);16}).to.throw(chai.AssertionError);17var chai = require('chai');18chai.use(require('chai-bad-assertions'));19var expect = chai.expect;20expect('hello').to.have.badPropertyAssertion('length', 5);21expect('hello').to.have.badPropertyAssertion('length', 6);22expect(function() {23 expect('hello').to.have.badPropertyAssertion('length', 5);24}).to.throw(chai.AssertionError);25var chai = require('chai');26chai.use(require('chai-bad-assertions'));27var expect = chai.expect;28expect('hello').to.have.badPropertyAssertion('length', 5);29expect('hello').to.have.badPropertyAssertion('length', 6);30expect(function() {31 expect('hello').to.have.badPropertyAssertion('length', 5);32}).to.throw(chai.AssertionError);33var chai = require('chai');34chai.use(require('chai-bad-assertions'));35var expect = chai.expect;36expect('hello').to.have.badPropertyAssertion('length', 5);37expect('hello').to.have.badPropertyAssertion('length', 6);38expect(function() {39 expect('hello').to.have.badPropertyAssertion('length', 5);40}).to.throw(chai.AssertionError);
Using AI Code Generation
1var chai = require('chai');2var expect = chai.expect;3describe('Test', function() {4 it('should return true', function() {5 expect(1).to.be.a('string');6 });7});8var chai = require('chai');9var expect = chai.expect;10describe('Test', function() {11 it('should return true', function() {12 expect(1).to.be.a('string');13 });14});15var chai = require('chai');16var expect = chai.expect;17describe('Test', function() {18 it('should return true', function() {19 expect(1).to.be.a('string');20 });21});22var chai = require('chai');23var expect = chai.expect;24describe('Test', function() {25 it('should return true', function() {26 expect(1).to.be.a('string');27 });28});29var chai = require('chai');30var expect = chai.expect;31describe('Test', function() {32 it('should return true', function() {33 expect(1).to.be.a('string');34 });35});36var chai = require('chai');37var expect = chai.expect;38describe('Test', function() {39 it('should return true', function() {40 expect(1).to.be.a('string');41 });42});43var chai = require('chai');44var expect = chai.expect;45describe('Test', function() {46 it('should return true', function() {47 expect(1).to.be.a('string');48 });49});50var chai = require('chai');51var expect = chai.expect;52describe('Test', function() {53 it('should return true', function() {54 expect(1).to.be.a('string');55 });56});
Using AI Code Generation
1var chai = require('chai');2var expect = chai.expect;3var should = chai.should();4var assert = chai.assert;5var obj = {name:'test'};6var num = 1;7var str = 'test';8var bool = true;9expect(obj).to.be.a('string');10expect(num).to.be.a('string');11expect(str).to.be.a('string');12expect(bool).to.be.a('string');13expect(obj).to.be.a('number');14expect(num).to.be.a('number');15expect(str).to.be.a('number');16expect(bool).to.be.a('number');17expect(obj).to.be.a('boolean');18expect(num).to.be.a('boolean');19expect(str).to.be.a('boolean');20expect(bool).to.be.a('boolean');21expect(obj).to.be.a('function');22expect(num).to.be.a('function');23expect(str).to.be.a('function');24expect(bool).to.be.a('function');25expect(obj).to.be.a('object');26expect(num).to.be.a('object');27expect(str).to.be.a('object');28expect(bool).to.be.a('object');29expect(obj).to.be.a('array');30expect(num).to.be.a('array');31expect(str).to.be.a('array');32expect(bool).to.be.a('array');33expect(obj).to.be.a('null');34expect(num).to.be.a('null');35expect(str).to.be.a('null');36expect(bool).to.be.a('null');
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.
You could also refer to video tutorials over LambdaTest YouTube channel to get step by step demonstration from industry experts.
Get 100 minutes of automation test minutes FREE!!