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How to use mergeWithPreservedBuffers method in Cypress

Best JavaScript code snippet using cypress

util.js

Source:util.js

...185        !after.headers[k] && delete before.headers[k];186    }187}188exports.mergeDeletedHeaders = mergeDeletedHeaders;189function mergeWithPreservedBuffers(before, after) {190    // lodash merge converts Buffer into Array (by design)191    // https://github.com/lodash/lodash/issues/2964192    // @see https://github.com/cypress-io/cypress/issues/15898193    lodash_1.default.mergeWith(before, after, (_a, b) => {194        if (b instanceof Buffer) {195            return b;196        }197        return undefined;198    });199}200exports.mergeWithPreservedBuffers = mergeWithPreservedBuffers;201function getBodyEncoding(req) {202    if (!req || !req.body) {203        return null;...

request.js

Source:request.js

1"use strict";2var __awaiter = (this && this.__awaiter) || function (thisArg, _arguments, P, generator) {3    function adopt(value) { return value instanceof P ? value : new P(function (resolve) { resolve(value); }); }4    return new (P || (P = Promise))(function (resolve, reject) {5        function fulfilled(value) { try { step(generator.next(value)); } catch (e) { reject(e); } }6        function rejected(value) { try { step(generator["throw"](value)); } catch (e) { reject(e); } }7        function step(result) { result.done ? resolve(result.value) : adopt(result.value).then(fulfilled, rejected); }8        step((generator = generator.apply(thisArg, _arguments || [])).next());9    });10};11var __importDefault = (this && this.__importDefault) || function (mod) {12    return (mod && mod.__esModule) ? mod : { "default": mod };13};14Object.defineProperty(exports, "__esModule", { value: true });15exports.InterceptRequest = void 0;16const lodash_1 = __importDefault(require("lodash"));17const network_1 = require("../../../../network");18const debug_1 = __importDefault(require("debug"));19const url_1 = __importDefault(require("url"));20const types_1 = require("../../types");21const route_matching_1 = require("../route-matching");22const util_1 = require("../util");23const intercepted_request_1 = require("../intercepted-request");24const debug = (0, debug_1.default)('cypress:net-stubbing:server:intercept-request');25/**26 * Called when a new request is received in the proxy layer.27 */28const InterceptRequest = function () {29    return __awaiter(this, void 0, void 0, function* () {30        if ((0, route_matching_1.matchesRoutePreflight)(this.netStubbingState.routes, this.req)) {31            // send positive CORS preflight response32            return (0, util_1.sendStaticResponse)(this, {33                statusCode: 204,34                headers: {35                    'access-control-max-age': '-1',36                    'access-control-allow-credentials': 'true',37                    'access-control-allow-origin': this.req.headers.origin || '*',38                    'access-control-allow-methods': this.req.headers['access-control-request-method'] || '*',39                    'access-control-allow-headers': this.req.headers['access-control-request-headers'] || '*',40                },41            });42        }43        const matchingRoutes = [];44        const populateMatchingRoutes = (prevRoute) => {45            const route = (0, route_matching_1.getRouteForRequest)(this.netStubbingState.routes, this.req, prevRoute);46            if (!route) {47                return;48            }49            matchingRoutes.push(route);50            populateMatchingRoutes(route);51        };52        populateMatchingRoutes();53        if (!matchingRoutes.length) {54            // not intercepted, carry on normally...55            return this.next();56        }57        const request = new intercepted_request_1.InterceptedRequest({58            continueRequest: this.next,59            onError: this.onError,60            onResponse: (incomingRes, resStream) => {61                (0, util_1.setDefaultHeaders)(this.req, incomingRes);62                this.onResponse(incomingRes, resStream);63            },64            req: this.req,65            res: this.res,66            socket: this.socket,67            state: this.netStubbingState,68            matchingRoutes,69        });70        debug('intercepting request %o', { requestId: request.id, req: lodash_1.default.pick(this.req, 'url') });71        // attach requestId to the original req object for later use72        this.req.requestId = request.id;73        this.netStubbingState.requests[request.id] = request;74        const req = lodash_1.default.extend(lodash_1.default.pick(request.req, types_1.SERIALIZABLE_REQ_PROPS), {75            url: request.req.proxiedUrl,76        });77        request.res.once('finish', () => __awaiter(this, void 0, void 0, function* () {78            request.handleSubscriptions({79                eventName: 'after:response',80                data: request.includeBodyInAfterResponse ? {81                    finalResBody: request.res.body,82                } : {},83                mergeChanges: lodash_1.default.noop,84            });85            debug('request/response finished, cleaning up %o', { requestId: request.id });86            delete this.netStubbingState.requests[request.id];87        }));88        const ensureBody = () => {89            return new Promise((resolve) => {90                if (req.body) {91                    return resolve();92                }93                request.req.pipe((0, network_1.concatStream)((reqBody) => {94                    req.body = reqBody;95                    resolve();96                }));97            });98        };99        yield ensureBody();100        if (!lodash_1.default.isString(req.body) && !lodash_1.default.isBuffer(req.body)) {101            throw new Error('req.body must be a string or a Buffer');102        }103        const bodyEncoding = (0, util_1.getBodyEncoding)(req);104        const bodyIsBinary = bodyEncoding === 'binary';105        if (bodyIsBinary) {106            debug('req.body contained non-utf8 characters, treating as binary content %o', { requestId: request.id, req: lodash_1.default.pick(this.req, 'url') });107        }108        // leave the requests that send a binary buffer unchanged109        // but we can work with the "normal" string requests110        if (!bodyIsBinary) {111            req.body = req.body.toString('utf8');112        }113        request.req.body = req.body;114        const mergeChanges = (before, after) => {115            if (before.headers['content-length'] === after.headers['content-length']) {116                // user did not purposely override content-length, let's set it117                after.headers['content-length'] = String(Buffer.from(after.body).byteLength);118            }119            // resolve and propagate any changes to the URL120            request.req.proxiedUrl = after.url = url_1.default.resolve(request.req.proxiedUrl, after.url);121            (0, util_1.mergeWithPreservedBuffers)(before, lodash_1.default.pick(after, types_1.SERIALIZABLE_REQ_PROPS));122            (0, util_1.mergeDeletedHeaders)(before, after);123        };124        const modifiedReq = yield request.handleSubscriptions({125            eventName: 'before:request',126            data: req,127            mergeChanges,128        });129        mergeChanges(req, modifiedReq);130        // @ts-ignore131        mergeChanges(request.req, req);132        if (request.responseSent) {133            // request has been fulfilled with a response already, do not send the request outgoing134            // @see https://github.com/cypress-io/cypress/issues/15841135            return this.end();136        }137        return request.continueRequest();138    });139};...

response.js

Source:response.js

1"use strict";2var __awaiter = (this && this.__awaiter) || function (thisArg, _arguments, P, generator) {3    function adopt(value) { return value instanceof P ? value : new P(function (resolve) { resolve(value); }); }4    return new (P || (P = Promise))(function (resolve, reject) {5        function fulfilled(value) { try { step(generator.next(value)); } catch (e) { reject(e); } }6        function rejected(value) { try { step(generator["throw"](value)); } catch (e) { reject(e); } }7        function step(result) { result.done ? resolve(result.value) : adopt(result.value).then(fulfilled, rejected); }8        step((generator = generator.apply(thisArg, _arguments || [])).next());9    });10};11var __importDefault = (this && this.__importDefault) || function (mod) {12    return (mod && mod.__esModule) ? mod : { "default": mod };13};14Object.defineProperty(exports, "__esModule", { value: true });15exports.InterceptResponse = void 0;16const lodash_1 = __importDefault(require("lodash"));17const network_1 = require("../../../../network");18const debug_1 = __importDefault(require("debug"));19const istextorbinary_1 = require("istextorbinary");20const types_1 = require("../../types");21const util_1 = require("../util");22const debug = (0, debug_1.default)('cypress:net-stubbing:server:intercept-response');23const InterceptResponse = function () {24    return __awaiter(this, void 0, void 0, function* () {25        const request = this.netStubbingState.requests[this.req.requestId];26        debug('InterceptResponse %o', { req: lodash_1.default.pick(this.req, 'url'), request });27        if (!request) {28            // original request was not intercepted, nothing to do29            return this.next();30        }31        request.onResponse = (incomingRes, resStream) => {32            this.incomingRes = incomingRes;33            request.continueResponse(resStream);34        };35        request.continueResponse = (newResStream) => {36            if (newResStream) {37                this.incomingResStream = newResStream.on('error', this.onError);38            }39            this.next();40        };41        this.makeResStreamPlainText();42        const body = yield new Promise((resolve) => {43            if (network_1.httpUtils.responseMustHaveEmptyBody(this.req, this.incomingRes)) {44                resolve(Buffer.from(''));45            }46            else {47                this.incomingResStream.pipe((0, network_1.concatStream)(resolve));48            }49        })50            .then((buf) => {51            return (0, istextorbinary_1.getEncoding)(buf) !== 'binary' ? buf.toString('utf8') : buf;52        });53        const res = lodash_1.default.extend(lodash_1.default.pick(this.incomingRes, types_1.SERIALIZABLE_RES_PROPS), {54            url: this.req.proxiedUrl,55            body,56        });57        if (!lodash_1.default.isString(res.body) && !lodash_1.default.isBuffer(res.body)) {58            throw new Error('res.body must be a string or a Buffer');59        }60        const mergeChanges = (before, after) => {61            (0, util_1.mergeWithPreservedBuffers)(before, lodash_1.default.pick(after, types_1.SERIALIZABLE_RES_PROPS));62            (0, util_1.mergeDeletedHeaders)(before, after);63        };64        const modifiedRes = yield request.handleSubscriptions({65            eventName: ['before:response', 'response:callback', 'response'],66            data: res,67            mergeChanges,68        });69        mergeChanges(request.res, modifiedRes);70        const bodyStream = yield (0, util_1.getBodyStream)(modifiedRes.body, lodash_1.default.pick(modifiedRes, ['throttleKbps', 'delay']));71        return request.continueResponse(bodyStream);72    });73};...

Using AI Code Generation

1cy.mergeWithPreservedBuffers();2cy.mergeWithPreservedBuffers();3cy.mergeWithPreservedBuffers();4cy.mergeWithPreservedBuffers();5cy.mergeWithPreservedBuffers();6cy.mergeWithPreservedBuffers();7cy.mergeWithPreservedBuffers();8cy.mergeWithPreservedBuffers();9cy.mergeWithPreservedBuffers();10cy.mergeWithPreservedBuffers();11cy.mergeWithPreservedBuffers();12cy.mergeWithPreservedBuffers();13cy.mergeWithPreservedBuffers();14cy.mergeWithPreservedBuffers();15cy.mergeWithPreservedBuffers();16cy.mergeWithPreservedBuffers();17cy.mergeWithPreservedBuffers();18cy.mergeWithPreservedBuffers();19cy.mergeWithPreservedBuffers();20cy.mergeWithPreservedBuffers();21cy.mergeWithPreservedBuffers();22cy.mergeWithPreservedBuffers();

Using AI Code Generation

1Cypress.Blob.mergeWithPreservedBuffers = (buffer1, buffer2) => {2    const mergedBuffer = Buffer.concat([buffer1, buffer2])3    return Cypress.Promise.resolve(mergedBuffer)4}5Cypress.Commands.add('uploadFile', (fileName, fileType = ' ', selector) => {6    return cy.get(selector).then(subject => {7        cy.fixture(fileName, 'base64')8            .then(Cypress.Blob.base64StringToBlob)9            .then(blob => {10                const testFile = new File([blob], fileName, { type: fileType })11                const dataTransfer = new DataTransfer()12                dataTransfer.items.add(testFile)13            })14    })15})16Cypress.Commands.add('attachFile', { prevSubject: true }, (subject, fileName, fileType) => {17    cy.fixture(fileName, 'base64')18        .then(Cypress.Blob.base64StringToBlob)19        .then(blob => {20            const testFile = new File([blob], fileName, { type: fileType })21            const dataTransfer = new DataTransfer()22            dataTransfer.items.add(testFile)23        })24})25Cypress.Commands.add('attachFile1', { prevSubject: true }, (subject, fileName, fileType) => {26    cy.fixture(fileName, 'base64')27        .then(Cypress.Blob.base64StringToBlob)28        .then(blob => {29            const testFile = new File([blob], fileName, { type: fileType })30            const dataTransfer = new DataTransfer()31            dataTransfer.items.add(testFile)32        })33})34Cypress.Commands.add('attachFile2', { prevSubject: true }, (subject, fileName, fileType) => {35    cy.fixture(fileName, 'base64')36        .then(Cypress.Blob.base64StringToBlob)37        .then(blob => {38            const testFile = new File([blob], fileName, { type: fileType })39            const dataTransfer = new DataTransfer()40            dataTransfer.items.add(testFile)41        })42})43Cypress.Commands.add('attachFile3', { prevSubject: true }, (subject, fileName,

Using AI Code Generation

1cy.get('#fileInput').attachFile('file.json', { subjectType: 'drag-n-drop' })2Cypress.Commands.add('attachFile', { prevSubject: 'element' }, (subject, fileName, options) => {3    .fixture(fileName, 'base64')4    .then(Cypress.Blob.base64StringToBlob)5    .then((blob) => {6      const testFile = new File([blob], fileName, { type: 'application/json' })7      const dataTransfer = new DataTransfer()8      dataTransfer.items.add(testFile)9    })10})11cy.fixture(fileName, 'base64').then(Cypress.Blob.base64StringToBlob)12Cypress.Commands.add('attachFile', { prevSubject: 'element' }, (subject, fileName, options) => {13  const testFile = new File([fileName], fileName, { type: 'application/json' })14  const dataTransfer = new DataTransfer()15  dataTransfer.items.add(testFile)16})

Using AI Code Generation

1describe('Test', () => {2  it('Test', () => {3    cy.get('.gLFyf').type('cypress')4    cy.get('.gNO89b').click()5    cy.get('.LC20lb.DKV0Md').click()6    cy.get('.gLFyf').type('cypress')7    cy.get('.gNO89b').click()8    cy.get('.LC20lb.DKV0Md').click()9    cy.get('.gLFyf').type('cypress')10    cy.get('.gNO89b').click()11    cy.get('.LC20lb.DKV0Md').click()12    cy.get('.gLFyf').type('cypress')13    cy.get('.gNO89b').click()14    cy.get('.LC20lb.DKV0Md').click()15    cy.get('.gLFyf').type('cypress')16    cy.get('.gNO89b').click()17    cy.get('.LC20lb.DKV0Md').click()18    cy.get('.gLFyf').type('cypress')19    cy.get('.gNO89b').click()20    cy.get('.LC20lb.DKV0Md').click()21    cy.get('.gLFyf').type('cypress')22    cy.get('.gNO89b').click()23    cy.get('.LC20lb.DKV0Md').click()24    cy.get('.gLFyf').type('cypress')25    cy.get('.gNO89b').click()26    cy.get('.LC20lb.DKV0Md').click()27    cy.get('.gLFyf').type('cypress')28    cy.get('.gNO89b').click()29    cy.get('.LC20lb.DKV0Md').click()30    cy.get('.gLFyf').type('cypress')31    cy.get('.gNO89b').click()32    cy.get('.LC20lb.DKV0Md').click()33    cy.get('.gLFyf').type('cypress')34    cy.get('.gNO89b').click()35    cy.get('.LC20lb.DKV0Md').click()36    cy.get('.gLFyf').type('cypress')37    cy.get('.gNO89b').click()38    cy.get('.LC20lb.DKV0Md').click()39    cy.get('.gLF

Using AI Code Generation

1const { mergeWithPreservedBuffers } = Cypress.Blob;2mergeWithPreservedBuffers([pdf1, pdf2])3.then((mergedPdf) => {4  fs.writeFile('merged.pdf', mergedPdf, (err) => {5    if (err) throw err;6    console.log('The file has been saved!');7  });8});

Using AI Code Generation

1const merged = Cypress.Buffer.mergeWithPreservedBuffers(2);3Cypress.Blob.binaryStringToBlob(merged).then((blob) => {4  const file = new File([blob], "merged.pdf", {5  });6  cy.get("input").attachFile(file);7});8Cypress.Commands.add("attachFile", { prevSubject: true }, (subject, file, options) => {9  return cy.window().then((win) => {10    const input = subject[0];11    const nameSegments = file.name.split(".");12    const name = nameSegments[0];13    const ext = nameSegments[1];14    cy.fixture(file, "base64").then((content) => {15      cy.log(content);16      const testFile = new win.File([content], name, { type: ext });17      const dataTransfer = new win.DataTransfer();18      dataTransfer.items.add(testFile);19      input.files = dataTransfer.files;20      return subject;21    });22  });23});24import "./commands";

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.

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Selenium vs Cypress: A Detailed Comparison - Compare and explore some key differences in terms of their design and features.
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