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How to use getHugeJsFile method in Cypress

Best JavaScript code snippet using cypress

http_requests_spec.js

Source:http_requests_spec.js

...2829            expect(err.error.code).to.eq('ECONNRESET')2830          })2831        })2832        it('does not die rewriting a huge JS file', function () {2833          return getHugeJsFile()2834          .then((hugeJsFile) => {2835            nock(this.server._remoteOrigin)2836            .get('/app.js')2837            .reply(200, hugeJsFile, {2838              'Content-Type': 'application/javascript',2839            })2840            let reqTime = new Date()2841            return this.rp('http://www.google.com/app.js')2842            .then((res) => {2843              expect(res.statusCode).to.eq(200)2844              reqTime = new Date() - reqTime2845              // shouldn't be more than 500ms2846              expect(reqTime).to.be.lt(500)2847            })2848          })2849        })2850      })2851      describe('off with config', () => {2852        beforeEach(function () {2853          return this.setup('http://www.google.com', {2854            config: {2855              modifyObstructiveCode: false,2856            },2857          })2858        })2859        it('can turn off security rewriting for HTML', function () {2860          const html = '<html><body><script>if (top !== self) { }</script></body></html>'2861          nock(this.server._remoteOrigin)2862          .get('/index.html')2863          .reply(200, html, {2864            'Content-Type': 'text/html',2865          })2866          return this.rp({2867            url: 'http://www.google.com/index.html',2868            headers: {2869              'Cookie': '__cypress.initial=true',2870            },2871          })2872          .then((res) => {2873            expect(res.statusCode).to.eq(200)2874            expect(res.body).to.include(2875              '<script>if (top !== self) { }</script>',2876            )2877          })2878        })2879        it('does not replaces obstructive code in JS files', function () {2880          nock(this.server._remoteOrigin)2881          .get('/app.js')2882          .reply(200, 'if (top !== self) { }', {2883            'Content-Type': 'application/javascript',2884          })2885          return this.rp('http://www.google.com/app.js')2886          .then((res) => {2887            expect(res.statusCode).to.eq(200)2888            expect(res.body).to.eq(2889              'if (top !== self) { }',2890            )2891          })2892        })2893      })2894    })2895    context('FQDN rewriting', () => {2896      beforeEach(function () {2897        return this.setup('http://www.google.com')2898      })2899      it('does not rewrite html when initial', function () {2900        nock(this.server._remoteOrigin)2901        .get('/bar')2902        .reply(200, '<html><body><a href=\'http://www.google.com\'>google</a></body></html>', {2903          'Content-Type': 'text/html',2904        })2905        return this.rp({2906          url: 'http://www.google.com/bar',2907          headers: {2908            'Cookie': '__cypress.initial=true',2909            'Accept': 'text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8',2910          },2911        })2912        .then((res) => {2913          expect(res.statusCode).to.eq(200)2914          const {2915            body,2916          } = res2917          expect(body).to.include('<a href=\'http://www.google.com\'>google</a>')2918        })2919      })2920      it('does not rewrite html when not initial', function () {2921        nock(this.server._remoteOrigin)2922        .get('/bar')2923        .reply(200, '<html><body><a href=\'http://www.google.com\'>google</a></body></html>', {2924          'Content-Type': 'text/html',2925        })2926        return this.rp({2927          url: 'http://www.google.com/bar',2928          headers: {2929            'Cookie': '__cypress.initial=false',2930            'Accept': 'text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8',2931          },2932        })2933        .then((res) => {2934          expect(res.statusCode).to.eq(200)2935          const {2936            body,2937          } = res2938          expect(body).to.include('<a href=\'http://www.google.com\'>google</a>')2939        })2940      })2941    })2942    context('file requests', () => {2943      beforeEach(function () {2944        Fixtures.scaffold()2945        return this.setup('/index.html', {2946          projectRoot: Fixtures.projectPath('no-server'),2947          config: {2948            fileServerFolder: 'dev',2949            integrationFolder: 'my-tests',2950          },2951        })2952        .then(() => {2953          return this.rp({2954            url: `${this.proxy}/index.html`,2955            headers: {2956              'Cookie': '__cypress.initial=true',2957              'Accept': 'text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8',2958            },2959          })2960          .then((res) => {2961            expect(res.statusCode).to.eq(200)2962            expect(res.body).to.include('index.html content')2963            expect(res.body).to.include('parent.Cypress')2964            expect(res.headers['set-cookie']).to.match(/initial=;/)2965            expect(res.headers['cache-control']).to.eq('no-cache, no-store, must-revalidate')2966            expect(res.headers['etag']).to.exist2967            expect(res.headers['last-modified']).to.exist2968          })2969        })2970      })2971      it('sets etag', function () {2972        return this.rp(`${this.proxy}/assets/app.css`)2973        .then((res) => {2974          expect(res.statusCode).to.eq(200)2975          expect(res.body).to.eq('html { color: black; }')2976          expect(res.headers['etag']).to.be.a('string')2977        })2978      })2979      it('sets last-modified', function () {2980        return this.rp(`${this.proxy}/assets/app.css`)2981        .then((res) => {2982          expect(res.headers['last-modified']).to.be.a('string')2983        })2984      })2985      it('streams from file system', function () {2986        return this.rp(`${this.proxy}/assets/app.css`)2987        .then((res) => {2988          expect(res.statusCode).to.eq(200)2989          expect(res.body).to.eq('html { color: black; }')2990        })2991      })2992      it('sets content-type', function () {2993        return this.rp(`${this.proxy}/assets/app.css`)2994        .then((res) => {2995          expect(res.statusCode).to.eq(200)2996          expect(res.headers['content-type']).to.match(/text\/css/)2997        })2998      })2999      it('disregards anything past the pathname', function () {3000        return this.rp(`${this.proxy}/assets/app.css?foo=bar#hash`)3001        .then((res) => {3002          expect(res.statusCode).to.eq(200)3003          expect(res.body).to.eq('html { color: black; }')3004        })3005      })3006      it('can serve files with spaces in the path', function () {3007        return this.rp(`${this.proxy}/a space/foo.txt`)3008        .then((res) => {3009          expect(res.statusCode).to.eq(200)3010          expect(res.body).to.eq('foo')3011        })3012      })3013      it('sets x-cypress-file-path headers', function () {3014        return this.rp(`${this.proxy}/assets/app.css`)3015        .then((res) => {3016          expect(res.headers).to.have.property('x-cypress-file-path', `${Fixtures.projectPath('no-server')}/dev/assets/app.css`)3017        })3018      })3019      it('sets x-cypress-file-server-error headers on error', function () {3020        return this.rp(`${this.proxy}/does-not-exist.html`)3021        .then((res) => {3022          expect(res.statusCode).to.eq(404)3023          expect(res.headers).to.have.property('x-cypress-file-server-error', 'true')3024        })3025      })3026      it('injects document.domain on other http requests', function () {3027        return this.rp({3028          url: `${this.proxy}/index.html`,3029          headers: {3030            'Cookie': '__cypress.initial=false',3031            'Accept': 'text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8',3032          },3033        })3034        .then((res) => {3035          expect(res.statusCode).to.eq(200)3036          expect(res.body).to.include('document.domain = \'localhost\';')3037        })3038      })3039      it('injects document.domain on other http requests to root', function () {3040        return this.rp({3041          url: `${this.proxy}/sub/`,3042          headers: {3043            'Cookie': '__cypress.initial=false',3044            'Accept': 'text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8',3045          },3046        })3047        .then((res) => {3048          expect(res.statusCode).to.eq(200)3049          expect(res.body).to.include('document.domain = \'localhost\';')3050        })3051      })3052      it('does not inject injects document.domain on 301 redirects to folders', function () {3053        return this.rp({3054          url: `${this.proxy}/sub`,3055          headers: {3056            'Cookie': '__cypress.initial=false',3057            'Accept': 'text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8',3058          },3059        })3060        .then((res) => {3061          expect(res.statusCode).to.eq(301)3062          expect(res.body).not.to.include('document.domain = \'localhost\';')3063        })3064      })3065      it('does not inject document.domain on non http requests', function () {3066        return this.rp({3067          url: `${this.proxy}/assets/foo.json`,3068          json: true,3069          headers: {3070            'Cookie': '__cypress.initial=false',3071          },3072        })3073        .then((res) => {3074          expect(res.statusCode).to.eq(200)3075          expect(res.body).to.deep.eq({ contents: '<html><head></head></html>' })3076        })3077      })3078      it('does not inject anything when not text/html response content-type even when __cypress.initial=true', function () {3079        return this.rp({3080          url: `${this.proxy}/assets/foo.json`,3081          headers: {3082            'Cookie': '__cypress.initial=true',3083            'Accept': 'application/json',3084          },3085        })3086        .then((res) => {3087          expect(res.statusCode).to.eq(200)3088          expect(res.body).to.deep.eq(JSON.stringify({ contents: '<html><head></head></html>' }, null, 2))3089          // it should not be telling us to turn this off either3090          expect(res.headers['set-cookie']).not.to.match(/initial/)3091        })3092      })3093    })3094    context('http requests', () => {3095      beforeEach(function () {3096        return this.setup('http://getbootstrap.com')3097        .then(() => {3098          nock(this.server._remoteOrigin)3099          .get('/components')3100          .reply(200, 'content page', {3101            'Content-Type': 'text/html',3102          })3103          return this.rp('http://getbootstrap.com/components')3104          .then((res) => {3105            expect(res.statusCode).to.eq(200)3106          })3107        })3108      })3109      it('proxies http requests', function () {3110        nock(this.server._remoteOrigin)3111        .get('/assets/css/application.css')3112        .reply(200, 'html { color: #333 }', {3113          'Content-Type': 'text/css',3114        })3115        return this.rp('http://getbootstrap.com/assets/css/application.css')3116        .then((res) => {3117          expect(res.statusCode).to.eq(200)3118          expect(res.body).to.eq('html { color: #333 }')3119        })3120      })3121    })3122    context('when session is already set', () => {3123      beforeEach(function () {3124        return this.setup('http://getbootstrap.com')3125        .then(() => {3126          // make an initial request to set the3127          // session proxy!3128          nock(this.server._remoteOrigin)3129          .get('/css')3130          .reply(200, 'css content page', {3131            'Content-Type': 'text/html',3132          })3133          return this.rp('http://getbootstrap.com/css')3134          .then((res) => {3135            expect(res.statusCode).to.eq(200)3136          })3137        })3138      })3139      it('proxies to the remote session', function () {3140        nock(this.server._remoteOrigin)3141        .get('/assets/css/application.css')3142        .reply(200, 'html { color: #333 }', {3143          'Content-Type': 'text/css',3144        })3145        return this.rp('http://getbootstrap.com/assets/css/application.css')3146        .then((res) => {3147          expect(res.statusCode).to.eq(200)3148          expect(res.body).to.eq('html { color: #333 }')3149        })3150      })3151    })3152    context('localhost', () => {3153      beforeEach(function () {3154        return this.setup('http://localhost:6565')3155      })3156      it('makes requests to ipv6 when ipv4 fails', function (done) {3157        // make sure that this test times out relatively fast3158        // to ensure that requests are fast, the retrying functionality3159        // does not extend them, and that the server closes quickly3160        // due to the reduced keep alive timeout3161        this.timeout(1500)3162        return dns.lookup('localhost', { all: true }, (err, addresses) => {3163          if (err) {3164            return done(err)3165          }3166          // if we dont have multiple addresses aka ipv6 then3167          // just skip this test3168          if (!_.find(addresses, { family: 6 })) {3169            return done()3170          }3171          // create a server that is only bound to ipv63172          // and ensure that it is found by localhost dns lookup3173          const server = http.createServer((req, res) => {3174            res.writeHead(200)3175            return res.end()3176          })3177          // reduce this down from 5000ms to 100ms3178          // so that our server closes much faster3179          server.keepAliveTimeout = 1003180          // start the server listening on ipv6 only3181          // for demo how to bind to localhost via ipv6 see project3182          // https://github.com/bahmutov/docker-ip63183          return server.listen(6565, '::', () => {3184            return this.rp('http://localhost:6565/#/foo')3185            .then((res) => {3186              expect(res.statusCode).to.eq(200)3187              return server.close(() => {3188                return done()3189              })3190            })3191          })3192        })3193      })3194      it('handles 204 no content status codes', function () {3195        nock('http://localhost:6565')3196        .get('/user/rooms')3197        .reply(204, '')3198        return this.rp('http://localhost:6565/user/rooms')3199        .then((res) => {3200          expect(res.statusCode).to.eq(204)3201          expect(res.body).to.eq('')3202        })3203      })3204    })3205    context('blocked hosts', () => {3206      beforeEach(function () {3207        return this.setup({3208          config: {3209            blockHosts: [3210              '*.google.com',3211              'shop.apple.com',3212              'cypress.io',3213              'localhost:6666',3214              '*adwords.com',3215            ],3216          },3217        })3218      })3219      it('returns 503 and custom headers for all hosts', function () {3220        const expectedHeader = (res, val) => {3221          expect(res.headers['x-cypress-matched-blocked-host']).to.eq(val)3222        }3223        return Promise.all([3224          this.rp('https://mail.google.com/f'),3225          this.rp('http://shop.apple.com/o'),3226          this.rp('https://cypress.io'),3227          this.rp('https://localhost:6666/o'),3228          this.rp('https://some.adwords.com'),3229        ])3230        .spread((...responses) => {3231          _.every(responses, (res) => {3232            expect(res.statusCode).to.eq(503)3233            expect(res.body).to.be.empty3234          })3235          expectedHeader(responses[0], '*.google.com')3236          expectedHeader(responses[1], 'shop.apple.com')3237          expectedHeader(responses[2], 'cypress.io')3238          expectedHeader(responses[3], 'localhost:6666')3239          return expectedHeader(responses[4], '*adwords.com')3240        })3241      })3242    })3243    context('client aborts', () => {3244      beforeEach(function () {3245        return this.setup('http://localhost:6565')3246      })3247      it('aborts the proxied request', function (done) {3248        getHugeJsFile()3249        .then((str) => {3250          const server = http.createServer((req, res) => {3251            // when the incoming message to our3252            // 3rd party server is aborted then3253            // we know we've juggled up the event3254            // properly3255            req.on('aborted', () => {3256              return server.close(() => {3257                return done()3258              })3259            })3260            res.writeHead(200, {3261              'Content-Type': 'application/javascript',3262            })...

Using AI Code Generation

1describe('Get a huge file', () => {2  it('should get a huge file', () => {3    cy.getHugeJsFile('huge.js').then((hugeFile) => {4      expect(hugeFile).to.exist;5    });6  });7});8Cypress.Commands.add('getHugeJsFile', (fileName) => {9  return cy.readFile(`cypress/fixtures/${fileName}`, 'utf8');10});

Using AI Code Generation

1describe('Test to download huge JS file', () => {2  it('should download huge JS file', () => {3  })4})5Cypress.Commands.add('getHugeJsFile', (url) => {6  return cy.request({7    headers: {8    },9  }).then((response) => {10    cy.writeFile('downloads/' + url.split('/').pop(), response.body, 'binary')11  })12})

Using AI Code Generation

1describe('Test to get huge file', () => {2    it('should get huge file', () => {3            cy.log(hugeFile);4        });5    });6});7Cypress.Commands.add('getHugeJsFile', (url) => {8    return cy.request(url).then((response) => {9        return response.body;10    });11});122. Use cy.readFile() to read files from your local system13describe('Test to read file', () => {14    it('should read file', () => {15        cy.readFile('./cypress/fixtures/sample.json').then((file) => {16            cy.log(file);17        });18    });19});203. Use cy.exec() to run commands in the terminal21describe('Test to run command in terminal', () => {22    it('should run command in terminal', () => {23        cy.exec('ls -la').then((result) => {24            cy.log(result);25        });26    });27});284. Use cy.task() to run custom tasks29describe('Test to run task', () => {30    it('should run task', () => {31            cy.log(hugeFile);32        });33    });34});35module.exports = (on, config) => {36    on('task', {37        getHugeJsFile(url) {38            return new Promise((resolve, reject) => {39                cy.request(url).then((response) => {40                    resolve(response.body);41                });42            });43        }44    });45};465. Use cy.fixture() to read files from the fixtures folder47describe('Test to read file from fixture folder', () => {48    it('should read file from fixture folder', () => {49        cy.fixture('sample.json').then((file

Using AI Code Generation

1describe('Test', () => {2 it('test', () => {3 cy.getHugeJsFile('fileName').then((fileContent) => {4 })5 })6})

Using AI Code Generation

1describe('Huge File', () => {2  it('should get huge file', () => {3      .should('have.length', 200000)4  })5})6Cypress.Commands.add('getHugeJsFile', (url, options) => {7  return cy.request({8    headers: {9    },10  })11})

Cypress Tutorial

Cypress is a renowned Javascript-based open-source, easy-to-use end-to-end testing framework primarily used for testing web applications. Cypress is a relatively new player in the automation testing space and has been gaining much traction lately, as evidenced by the number of Forks (2.7K) and Stars (42.1K) for the project. LambdaTest’s Cypress Tutorial covers step-by-step guides that will help you learn from the basics till you run automation tests on LambdaTest.

Chapters:

What is Cypress? -
Why Cypress? - Learn why Cypress might be a good choice for testing your web applications.
Features of Cypress Testing - Learn about features that make Cypress a powerful and flexible tool for testing web applications.
Cypress Drawbacks - Although Cypress has many strengths, it has a few limitations that you should be aware of.
Cypress Architecture - Learn more about Cypress architecture and how it is designed to be run directly in the browser, i.e., it does not have any additional servers.
Browsers Supported by Cypress - Cypress is built on top of the Electron browser, supporting all modern web browsers. Learn browsers that support Cypress.
Selenium vs Cypress: A Detailed Comparison - Compare and explore some key differences in terms of their design and features.
Cypress Learning: Best Practices - Take a deep dive into some of the best practices you should use to avoid anti-patterns in your automation tests.
How To Run Cypress Tests on LambdaTest? - Set up a LambdaTest account, and now you are all set to learn how to run Cypress tests.

Certification

You can elevate your expertise with end-to-end testing using the Cypress automation framework and stay one step ahead in your career by earning a Cypress certification. Check out our Cypress 101 Certification.