Unlock 30% off on Manual Testing Annual Plans this Holiday Season.

Copied to Clipboard!

How to use getReplaceablePropOfMemberExpression method in Cypress

Best JavaScript code snippet using cypress

js-rules.js

Source:js-rules.js

...33/**34 * Given an Identifier or a Literal, return a property name that should use `resolveWindowReference`.35 * @param node36 */37function getReplaceablePropOfMemberExpression(node) {38    const { property } = node;39    // something.(top|parent)40    if (ast_types_1.namedTypes.Identifier.check(property) && ['parent', 'top', 'location'].includes(property.name)) {41        return property.name;42    }43    // something['(top|parent)']44    if (ast_types_1.namedTypes.Literal.check(property) && ['parent', 'top', 'location'].includes(String(property.value))) {45        return String(property.value);46    }47    // NOTE: cases where a variable is used for the prop will not be replaced48    // for example, `bar = 'top'; window[bar];` will not be replaced49    // this would most likely be too slow50    return;51}52/**53 * An AST Visitor that applies JS transformations required for Cypress.54 * @see https://github.com/benjamn/ast-types#ast-traversal for details on how the Visitor is implemented55 * @see https://astexplorer.net/#/gist/7f1e645c74df845b0e1f814454e9bbdf/f443b701b53bf17fbbf40e9285cb8b65a406624056 *  to explore ASTs generated by recast57 */58exports.jsRules = {59    // replace member accesses like foo['top'] or bar.parent with resolveWindowReference60    visitMemberExpression(path) {61        const { node } = path;62        const prop = getReplaceablePropOfMemberExpression(node);63        if (!prop) {64            return this.traverse(path);65        }66        path.replace(resolveWindowReference(path.get('object').node, prop));67        return false;68    },69    // replace lone identifiers like `top`, `parent`, with resolveWindowReference70    visitIdentifier(path) {71        const { node } = path;72        if (path.parentPath) {73            const parentNode = path.parentPath.node;74            // like `identifer = 'foo'`75            const isAssignee = ast_types_1.namedTypes.AssignmentExpression.check(parentNode) && parentNode.left === node;76            if (isAssignee && node.name === 'location') {77                // `location = 'something'`, rewrite to intercepted href setter since relative urls can break this78                path.replace(ast_types_1.builders.memberExpression(resolveLocationReference(), ast_types_1.builders.identifier('href')));79                return false;80            }81            // some Identifiers do not refer to a scoped variable, depending on how they're used82            if (83            // like `var top = 'foo'`84            (ast_types_1.namedTypes.VariableDeclarator.check(parentNode) && parentNode.id === node)85                || (isAssignee)86                || ([87                    'LabeledStatement',88                    'ContinueStatement',89                    'BreakStatement',90                    'Property',91                    'FunctionDeclaration',92                    'RestElement',93                    'ArrowFunctionExpression',94                    'ArrowExpression',95                    'FunctionExpression', // like `(function top())`,96                ].includes(parentNode.type))) {97                return false;98            }99        }100        if (path.scope.declares(node.name)) {101            // identifier has been declared in local scope, don't care about replacing102            return this.traverse(path);103        }104        if (node.name === 'location') {105            path.replace(resolveLocationReference());106            return false;107        }108        if (['parent', 'top'].includes(node.name)) {109            path.replace(resolveWindowReference(globalIdentifier, node.name));110            return false;111        }112        this.traverse(path);113    },114    visitAssignmentExpression(path) {115        const { node } = path;116        const finish = () => {117            this.traverse(path);118        };119        if (!ast_types_1.namedTypes.MemberExpression.check(node.left)) {120            return finish();121        }122        const propBeingSet = getReplaceablePropOfMemberExpression(node.left);123        if (!propBeingSet) {124            return finish();125        }126        if (node.operator !== '=') {127            // in the case of +=, -=, |=, etc., assume they're not doing something like128            // `window.top += 4` since that would be invalid anyways, just continue down the RHS129            this.traverse(path.get('right'));130            return false;131        }132        const objBeingSetOn = node.left.object;133        path.replace(resolveWindowReference(objBeingSetOn, propBeingSet, node.right));134        return false;135    },136};

Using AI Code Generation

1const { getReplaceablePropOfMemberExpression } = require('cypress/types/lodash');2const { getReplaceablePropOfMemberExpression } = require('cypress/types/lodash');3const { getReplaceablePropOfMemberExpression } = require('cypress/types/lodash');4const { getReplaceablePropOfMemberExpression } = require('cypress/types/lodash');5const { getReplaceablePropOfMemberExpression } = require('cypress/types/lodash');6const { getReplaceablePropOfMemberExpression } = require('cypress/types/lodash');7const { getReplaceablePropOfMemberExpression } = require('cypress/types/lodash');8const { getReplaceablePropOfMemberExpression } = require('cypress/types/lodash');9const { getReplaceablePropOfMemberExpression } = require('cypress/types/lodash');10const { getReplaceablePropOfMemberExpression } = require('cypress/types/lodash');11const { getReplaceablePropOfMemberExpression } = require('cypress/types/lodash');12const { getReplaceablePropOfMemberExpression } = require('cypress/types/lodash');13const { getReplaceablePropOfMemberExpression } = require('cypress/types

Using AI Code Generation

1const { getReplaceablePropOfMemberExpression } = require("cypress-cucumber-preprocessor/steps");2describe("My First Test", () => {3  it("Visits the Kitchen Sink", () => {4    cy.contains("type").click();5    cy.url().should("include", "/commands/actions");6    cy.get(".action-email")7      .type("

Using AI Code Generation

1describe('My First Test', function() {2  it('Does not do much!', function() {3    cy.get('input').type('Hello World')4    cy.get('button').click()5    cy.get('ul').contains('Hello World')6    cy.getReplaceablePropOfMemberExpression('ul').should('contain', 'Hello World')7  })8})9Cypress.Commands.add('getReplaceablePropOfMemberExpression', (selector, ...args) => {10  const ast = esprima.parse(selector)11  const { object, property } = memberExpression12  const replaceableSelector = `${objectName}.${propertyName}(${args})`13  cy.get(replaceableSelector)14})15const esprima = require('esprima')16const escodegen = require('escodegen')17module.exports = (on, config) => {18  on('task', {19    getReplaceablePropOfMemberExpression({ selector, args }) {20      const ast = esprima.parse(selector)21      const { object, property } = memberExpression22      const replaceableSelector = `${objectName}.${propertyName}(${args})`23    },24  })25}26describe('My First Test', function() {27  it('Does not do much!', function() {28    cy.get('input').type('Hello World')29    cy.get('button').click()30    cy.get('ul').contains('Hello World')31    cy.getReplaceablePropOfMemberExpression('ul').should('contain', 'Hello World')32  })33})34Cypress.Commands.add('getReplaceablePropOfMemberExpression

Using AI Code Generation

1cy.getReplaceablePropOfMemberExpression('a.b.c', 'c')2cy.getReplaceablePropOfMemberExpression('a.b.c.d', 'd')3cy.getReplaceablePropOfMemberExpression('a.b.c.d.e', 'e')4cy.getReplaceablePropOfMemberExpression('a.b.c.d.e.f', 'f')5cy.getReplaceablePropOfMemberExpression('a.b.c.d.e.f.g', 'g')6cy.getReplaceablePropOfMemberExpression('a.b.c.d.e.f.g.h', 'h')7cy.getReplaceablePropOfMemberExpression('a.b.c.d.e.f.g.h.i', 'i')8cy.getReplaceablePropOfMemberExpression('a.b.c.d.e.f.g.h.i.j', 'j')9cy.getReplaceablePropOfMemberExpression('a.b.c.d.e.f.g.h.i.j.k', 'k')10cy.getReplaceablePropOfMemberExpression('a.b.c.d.e.f.g.h.i.j.k.l', 'l')11cy.getReplaceablePropOfMemberExpression('a.b.c.d.e.f.g.h.i.j.k.l.m', 'm')12cy.getReplaceablePropOfMemberExpression('a.b.c.d.e.f.g.h.i.j.k.l.m.n', 'n')

Using AI Code Generation

1const getReplaceablePropOfMemberExpression = require('cypress/src/util/getReplaceablePropOfMemberExpression')2const getReplaceablePropOfMemberExpression = require('cypress/src/util/getReplaceablePropOfMemberExpression')3const getReplaceablePropOfMemberExpression = require('cypress/src/util/getReplaceablePropOfMemberExpression')4const getReplaceablePropOfMemberExpression = require('cypress/src/util/getReplaceablePropOfMemberExpression')5const getReplaceablePropOfMemberExpression = require('cypress/src/util/getReplaceablePropOfMemberExpression')6const getReplaceablePropOfMemberExpression = require('cypress/src/util/getReplaceablePropOfMemberExpression')7const getReplaceablePropOfMemberExpression = require('cypress/src/util/getReplaceablePropOfMemberExpression')8const getReplaceablePropOfMemberExpression = require('cypress/src/util/getReplaceablePropOfMemberExpression')9const getReplaceablePropOfMemberExpression = require('cypress/src/util/getReplaceablePropOfMemberExpression')10const getReplaceablePropOfMemberExpression = require('cypress/src/util/getReplaceablePropOfMemberExpression')

Using AI Code Generation

1const { getReplaceablePropOfMemberExpression } = require('cypress/lib/util/ast')2const { parse } = require('cypress/src/util/ast')3const code = "cy.get('div').contains('Hello')"4const ast = parse(code)5const prop = getReplaceablePropOfMemberExpression(memberExpression)6console.log(prop)7const { getReplaceablePropOfMemberExpression } = require('cypress/lib/util/ast')8const { parse } = require('cypress/src/util/ast')9const code = "cy.get('div').should('have.text', 'Hello')"10const ast = parse(code)11const prop = getReplaceablePropOfMemberExpression(memberExpression)12console.log(prop)13const { getReplaceablePropOfMemberExpression } = require('cypress/lib/util/ast')14const { parse } = require('cypress/src/util/ast')15const code = "cy.get('div').should('have.text', 'Hello').and('have.class', 'foo')"16const ast = parse(code)17const prop = getReplaceablePropOfMemberExpression(memberExpression)18console.log(prop)19const { getReplaceablePropOfMemberExpression } = require('cypress/lib/util/ast')20const { parse } = require('cypress/src/util/ast')21const code = "cy.get('div').should('have.text', 'Hello').and('have.class', 'foo').should('have.length', 2)"22const ast = parse(code)23const prop = getReplaceablePropOfMemberExpression(memberExpression)24console.log(prop)25const { getReplaceablePropOfMemberExpression } = require('cypress/lib/util/ast')26const { parse } =

Using AI Code Generation

1const cypress = require("cypress");2const myCode = `const foo = { bar: 1, baz: 2 };3const { bar, ...rest } = foo;4console.log(rest);`;5const ast = cypress.acorn.parse(myCode, { ecmaVersion: 2020 });6const { getReplaceablePropOfMemberExpression } = cypress.acorn.util;7const prop = getReplaceablePropOfMemberExpression(ast.body[0].declarations[0].init.properties[1].value);8console.log(prop);9{ type: 'ObjectExpression',10   [ { type: 'Property',11       key: { type: 'Identifier', name: 'baz' },12       value: { type: 'Literal', value: 2, raw: '2' },13       shorthand: false } ] }14Your name to display (optional):15Your name to display (optional):

Using AI Code Generation

1const prop = getReplaceablePropOfMemberExpression(2);3const prop = getReplaceablePropOfMemberExpression(4);5const prop = getReplaceablePropOfMemberExpression(6);7const prop = getReplaceablePropOfMemberExpression(8);9const prop = getReplaceablePropOfMemberExpression(10);11const prop = getReplaceablePropOfMemberExpression(12);13const prop = getReplaceablePropOfMemberExpression(14);15const prop = getReplaceablePropOfMemberExpression(16);

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.