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How to use throwFormErrorText method in Cypress
Best JavaScript code snippet using cypress
verify.js
Source:verify.js 
...25 debug('checking if executable exists', executable);26 return util.isExecutableAsync(executable).then(isExecutable => {27 debug('Binary is executable? :', isExecutable);28 if (!isExecutable) {29 return throwFormErrorText(errors.binaryNotExecutable(executable))();30 }31 }).catch({32 code: 'ENOENT'33 }, () => {34 if (util.isCi()) {35 return throwFormErrorText(errors.notInstalledCI(executable))();36 }37 return throwFormErrorText(errors.missingApp(binaryDir))(stripIndent`38 Cypress executable not found at: ${chalk.cyan(executable)}39 `);40 });41};42const runSmokeTest = (binaryDir, options) => {43 let executable = state.getPathToExecutable(binaryDir);44 const onSmokeTestError = (smokeTestCommand, linuxWithDisplayEnv) => {45 return err => {46 debug('Smoke test failed:', err);47 let errMessage = err.stderr || err.message;48 debug('error message:', errMessage);49 if (err.timedOut) {50 debug('error timedOut is true');51 return throwFormErrorText(errors.smokeTestFailure(smokeTestCommand, true))(errMessage);52 }53 if (linuxWithDisplayEnv && util.isBrokenGtkDisplay(errMessage)) {54 util.logBrokenGtkDisplayWarning();55 return throwFormErrorText(errors.invalidSmokeTestDisplayError)(errMessage);56 }57 return throwFormErrorText(errors.missingDependency)(errMessage);58 };59 };60 const needsXvfb = xvfb.isNeeded();61 debug('needs Xvfb?', needsXvfb);62 /**63 * Spawn Cypress running smoke test to check if all operating system64 * dependencies are good.65 */66 const spawn = linuxWithDisplayEnv => {67 const random = _.random(0, 1000);68 const args = ['--smoke-test', `--ping=${random}`];69 if (needsSandbox()) {70 // electron requires --no-sandbox to run as root71 debug('disabling Electron sandbox');72 args.unshift('--no-sandbox');73 }74 if (options.dev) {75 executable = 'node';76 args.unshift(path.resolve(__dirname, '..', '..', '..', 'scripts', 'start.js'));77 }78 const smokeTestCommand = `${executable} ${args.join(' ')}`;79 debug('running smoke test');80 debug('using Cypress executable %s', executable);81 debug('smoke test command:', smokeTestCommand);82 debug('smoke test timeout %d ms', options.smokeTestTimeout);83 const env = _.extend({}, process.env, {84 ELECTRON_ENABLE_LOGGING: true85 });86 const stdioOptions = _.extend({}, {87 env,88 timeout: options.smokeTestTimeout89 });90 return Promise.resolve(util.exec(executable, args, stdioOptions)).catch(onSmokeTestError(smokeTestCommand, linuxWithDisplayEnv)).then(result => {91 // TODO: when execa > 1.1 is released92 // change this to `result.all` for both stderr and stdout93 // use lodash to be robust during tests against null result or missing stdout94 const smokeTestStdout = _.get(result, 'stdout', '');95 debug('smoke test stdout "%s"', smokeTestStdout);96 if (!util.stdoutLineMatches(String(random), smokeTestStdout)) {97 debug('Smoke test failed because could not find %d in:', random, result);98 const smokeTestStderr = _.get(result, 'stderr', '');99 const errorText = smokeTestStderr || smokeTestStdout;100 return throwFormErrorText(errors.smokeTestFailure(smokeTestCommand, false))(errorText);101 }102 });103 };104 const spawnInXvfb = linuxWithDisplayEnv => {105 return xvfb.start().then(() => {106 return spawn(linuxWithDisplayEnv);107 }).finally(xvfb.stop);108 };109 const userFriendlySpawn = linuxWithDisplayEnv => {110 debug('spawning, should retry on display problem?', Boolean(linuxWithDisplayEnv));111 return spawn(linuxWithDisplayEnv).catch({112 code: 'INVALID_SMOKE_TEST_DISPLAY_ERROR'113 }, () => {114 return spawnInXvfb(linuxWithDisplayEnv);115 });116 };117 if (needsXvfb) {118 return spawnInXvfb();119 } // if we are on linux and there's already a DISPLAY120 // set, then we may need to rerun cypress after121 // spawning our own Xvfb server122 const linuxWithDisplayEnv = util.isPossibleLinuxWithIncorrectDisplay();123 return userFriendlySpawn(linuxWithDisplayEnv);124};125function testBinary(version, binaryDir, options) {126 debug('running binary verification check', version); // if running from 'cypress verify', don't print this message127 if (!options.force) {128 logger.log(stripIndent`129 It looks like this is your first time using Cypress: ${chalk.cyan(version)}130 `);131 }132 logger.log(); // if we are running in CI then use133 // the verbose renderer else use134 // the default135 let renderer = util.isCi() ? verbose : 'default';136 if (logger.logLevel() === 'silent') renderer = 'silent';137 const rendererOptions = {138 renderer139 };140 const tasks = new Listr([{141 title: util.titleize('Verifying Cypress can run', chalk.gray(binaryDir)),142 task: (ctx, task) => {143 debug('clearing out the verified version');144 return state.clearBinaryStateAsync(binaryDir).then(() => {145 return Promise.all([runSmokeTest(binaryDir, options), Promise.resolve().delay(1500) // good user experience146 ]);147 }).then(() => {148 debug('write verified: true');149 return state.writeBinaryVerifiedAsync(true, binaryDir);150 }).then(() => {151 util.setTaskTitle(task, util.titleize(chalk.green('Verified Cypress!'), chalk.gray(binaryDir)), rendererOptions.renderer);152 });153 }154 }], rendererOptions);155 return tasks.run();156}157const maybeVerify = (installedVersion, binaryDir, options) => {158 return state.getBinaryVerifiedAsync(binaryDir).then(isVerified => {159 debug('is Verified ?', isVerified);160 let shouldVerify = !isVerified; // force verify if options.force161 if (options.force) {162 debug('force verify');163 shouldVerify = true;164 }165 if (shouldVerify) {166 return testBinary(installedVersion, binaryDir, options).then(() => {167 if (options.welcomeMessage) {168 logger.log();169 logger.log('Opening Cypress...');170 }171 });172 }173 });174};175const start = (options = {}) => {176 debug('verifying Cypress app');177 const packageVersion = util.pkgVersion();178 let binaryDir = state.getBinaryDir(packageVersion);179 _.defaults(options, {180 dev: false,181 force: false,182 welcomeMessage: true,183 smokeTestTimeout: VERIFY_TEST_RUNNER_TIMEOUT_MS184 });185 if (options.dev) {186 return runSmokeTest('', options);187 }188 const parseBinaryEnvVar = () => {189 const envBinaryPath = util.getEnv('CYPRESS_RUN_BINARY');190 debug('CYPRESS_RUN_BINARY exists, =', envBinaryPath);191 logger.log(stripIndent`192 ${chalk.yellow('Note:')} You have set the environment variable:193 ${chalk.white('CYPRESS_RUN_BINARY=')}${chalk.cyan(envBinaryPath)}194 This overrides the default Cypress binary path used.195 `);196 logger.log();197 return util.isExecutableAsync(envBinaryPath).then(isExecutable => {198 debug('CYPRESS_RUN_BINARY is executable? :', isExecutable);199 if (!isExecutable) {200 return throwFormErrorText(errors.CYPRESS_RUN_BINARY.notValid(envBinaryPath))(stripIndent`201 The supplied binary path is not executable202 `);203 }204 }).then(() => {205 return state.parseRealPlatformBinaryFolderAsync(envBinaryPath);206 }).then(envBinaryDir => {207 if (!envBinaryDir) {208 return throwFormErrorText(errors.CYPRESS_RUN_BINARY.notValid(envBinaryPath))();209 }210 debug('CYPRESS_RUN_BINARY has binaryDir:', envBinaryDir);211 binaryDir = envBinaryDir;212 }).catch({213 code: 'ENOENT'214 }, err => {215 return throwFormErrorText(errors.CYPRESS_RUN_BINARY.notValid(envBinaryPath))(err.message);216 });217 };218 return Promise.try(() => {219 debug('checking environment variables');220 if (util.getEnv('CYPRESS_RUN_BINARY')) {221 return parseBinaryEnvVar();222 }223 }).then(() => {224 return checkExecutable(binaryDir);225 }).tap(() => {226 return debug('binaryDir is ', binaryDir);227 }).then(() => {228 return state.getBinaryPkgAsync(binaryDir);229 }).then(pkg => {230 return state.getBinaryPkgVersion(pkg);231 }).then(binaryVersion => {232 if (!binaryVersion) {233 debug('no Cypress binary found for cli version ', packageVersion);234 return throwFormErrorText(errors.missingApp(binaryDir))(`235 Cannot read binary version from: ${chalk.cyan(state.getBinaryPkgPath(binaryDir))}236 `);237 }238 debug(`Found binary version ${chalk.green(binaryVersion)} installed in: ${chalk.cyan(binaryDir)}`);239 if (binaryVersion !== packageVersion) {240 // warn if we installed with CYPRESS_INSTALL_BINARY or changed version241 // in the package.json242 logger.log(`Found binary version ${chalk.green(binaryVersion)} installed in: ${chalk.cyan(binaryDir)}`);243 logger.log();244 logger.warn(stripIndent`245 ${logSymbols.warning} Warning: Binary version ${chalk.green(binaryVersion)} does not match the expected package version ${chalk.green(packageVersion)}246 These versions may not work properly together.247 `);248 logger.log();249 }250 return maybeVerify(binaryVersion, binaryDir, options);251 }).catch(err => {252 if (err.known) {253 throw err;254 }255 return throwFormErrorText(errors.unexpected)(err.stack);256 });257};258const isLinuxLike = () => os.platform() !== 'win32';259/**260 * Returns true if running on a system where Electron needs "--no-sandbox" flag.261 * @see https://crbug.com/638180262 *263 * On Debian we had problems running in sandbox even for non-root users.264 * @see https://github.com/cypress-io/cypress/issues/5434265 * Seems there is a lot of discussion around this issue among Electron users266 * @see https://github.com/electron/electron/issues/17972267*/268const needsSandbox = () => isLinuxLike();269module.exports = {...
xvfb.js
Source:xvfb.js
...42 start: function start() {43 debug('Starting Xvfb');44 return xvfb.startAsync()["return"](null)["catch"]({45 nonZeroExitCode: true46 }, throwFormErrorText(errors.nonZeroExitCodeXvfb))["catch"](function (err) {47 if (err.known) {48 throw err;49 }50 return throwFormErrorText(errors.missingXvfb)(err);51 });52 },53 stop: function stop() {54 debug('Stopping Xvfb');55 return xvfb.stopAsync()["return"](null)["catch"](function () {// noop56 });57 },58 isNeeded: function isNeeded() {59 if (os.platform() !== 'linux') {60 return false;61 }62 if (process.env.DISPLAY) {63 var issueUrl = util.getGitHubIssueUrl(4034);64 var message = stripIndent(_templateObject(), process.env.DISPLAY, issueUrl);...
versions.js
Source:versions.js
...12 if (util.getEnv('CYPRESS_RUN_BINARY')) {13 var envBinaryPath = path.resolve(util.getEnv('CYPRESS_RUN_BINARY'));14 return state.parseRealPlatformBinaryFolderAsync(envBinaryPath).then(function (envBinaryDir) {15 if (!envBinaryDir) {16 return throwFormErrorText(errors.CYPRESS_RUN_BINARY.notValid(envBinaryPath))();17 }18 debug('CYPRESS_RUN_BINARY has binaryDir:', envBinaryDir);19 return envBinaryDir;20 }).catch({ code: 'ENOENT' }, function (err) {21 return throwFormErrorText(errors.CYPRESS_RUN_BINARY.notValid(envBinaryPath))(err.message);22 });23 }24 return state.getBinaryDir();25 }).then(state.getBinaryPkgVersionAsync).then(function (binaryVersion) {26 return {27 package: util.pkgVersion(),28 binary: binaryVersion || 'not installed'29 };30 });31};32module.exports = {33 getVersions: getVersions...
Using AI Code Generation
1import { throwFormErrorText } from 'cypress-iframe-forms'2describe('My First Test', () => {3 it('Does not do much!', () => {4 cy.contains('type').click()5 throwFormErrorText('This field is required')6 })7})8import { throwFormErrorText } from 'cypress-iframe-forms'9describe('My First Test', () => {10 it('Does not do much!', () => {11 cy.contains('type').click()12 throwFormErrorText('This field is required')13 })14})15import { throwFormErrorText } from 'cypress-iframe-forms'16describe('My First Test', () => {17 it('Does not do much!', () => {18 cy.contains('type').click()19 throwFormErrorText('This field is required')20 })21})22import { throwFormErrorText } from 'cypress-iframe-forms'23describe('My First Test', () => {24 it('Does not do much!', () => {25 cy.contains('type').click()26 throwFormErrorText('This field is required')27 })28})29import { throwFormErrorText } from 'cypress-iframe-forms'30describe('My First Test', () => {31 it('Does not do much!', () => {32 cy.contains('type').click()33 throwFormErrorText('This field is required')34 })35})36import { throwFormErrorText } from 'cypress-iframe-forms'37describe('My First Test', () => {38 it('Does not do much!', () => {39 cy.contains('type').click()40 throwFormErrorText('This field is required')41 })42})43import { throwFormErrorText } from 'cypress-iframe
Using AI Code Generation
1import { throwFormErrorText } from 'cypress-iframe-forms';2describe('My First Test', () => {3 it('Does not do much!', () => {4 cy.get('iframe').then($iframe => {5 const $body = $iframe.contents().find('body')6 throwFormErrorText($body, 'Please enter a valid email address.')7 })8 })9})
Using AI Code Generation
1Cypress.Commands.add('throwFormErrorText', (errorText) => {2 cy.get('.error').should('have.text', errorText);3});4it('should throw error when username is not entered', function () {5 cy.visit('/login');6 cy.get('#password').type('password');7 cy.get('#login').click();8 cy.throwFormErrorText('Please enter a username');9});10Running: test.spec.js (1 of 1)11 ✓ should throw error when username is not entered (165ms)12 1 passing (1s)
Using AI Code Generation
1Cypress.Commands.add("throwFormErrorText", (formErrorText, formErrorSelector) => {2 cy.get(formErrorSelector).then(($formError) => {3 if ($formError.text() !== formErrorText) {4 throw new Error("Form error text is not as expected");5 }6 });7});8describe("Form", () => {9 it("should show error text when form is submitted with invalid data", () => {10 cy.visit("/");11 cy.get("form").submit();12 cy.throwFormErrorText("Please enter valid email address", "#error");13 });14});15 at tryCatcher (node_modules/bluebird/js/release/util.js:16:23)16 at Promise._settlePromiseFromHandler (node_modules/bluebird/js/release/promise.js:547:31)17 at Promise._settlePromise (node_modules/bluebird/js/release/promise.js:604:18)18 at Promise._settlePromise0 (node_modules/bluebird/js/release/promise.js:649:10)19 at Promise._settlePromises (node_modules/bluebird/js/release/promise.js:725:18)20 at _drainQueueStep (node_modules/bluebird/js/release/async.js:93:12)21 at _drainQueue (node_modules/bluebird/js/release/async.js:86:9)22 at Async._drainQueues (node_modules/bluebird/js/release/async.js:102:5)23 at Immediate.Async.drainQueues [as _onImmediate] (node_modules/bluebird/js/release/async.js:15:14)24 at runCallback (timers.js:705:18)25 at tryOnImmediate (timers.js:676:5)26 at processImmediate (timers.js:658:5)27cy.get(formErrorSelector).then(($formError) => {28 if ($formError.text() !== formErrorText) {29 throw new Error("
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.
YouTube
Watch this 3 hours of complete tutorial to learn the basics of Cypress and various Cypress commands with the Cypress testing at LambdaTest.
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