Join the 1-day Testing & QA Summit featuring 15+ Expert Speakers.Register for FREE! Join TestMu Conference

How to use findStackStart method in unexpected

Best JavaScript code snippet using unexpected

UnexpectedError.js

Source:UnexpectedError.js

...200    default:201      throw new Error(`Unknown error mode: '${errorMode}'`);202  }203};204function findStackStart(lines) {205  for (let i = lines.length - 1; i >= 0; i -= 1) {206    if (lines[i] === '') {207      return i + 1;208    }209  }210  return -1;211}212UnexpectedError.prototype.serializeMessage = function (outputFormat) {213  if (!this._hasSerializedErrorMessage) {214    const htmlFormat = outputFormat === 'html';215    if (htmlFormat) {216      if (!('htmlMessage' in this)) {217        this.htmlMessage = this.getErrorMessage({ format: 'html' }).toString();218      }219    }220    this.message = `\n${this.getErrorMessage({221      format: htmlFormat ? 'text' : outputFormat,222    }).toString()}\n`;223    if (224      this.originalError &&225      this.originalError instanceof Error &&226      typeof this.originalError.stack === 'string'227    ) {228      // The stack of the original error looks like this:229      //   <constructor name>: <error message>\n<actual stack trace>230      // Try to get hold of <actual stack trace> and append it231      // to the error message of this error:232      const index = this.originalError.stack.indexOf(233        this.originalError.message234      );235      if (index === -1) {236        // Phantom.js doesn't include the error message in the stack property237        this.stack = `${this.message}\n${this.originalError.stack}`;238      } else {239        this.stack =240          this.message +241          this.originalError.stack.substr(242            index + this.originalError.message.length243          );244      }245    } else if (/^(Unexpected)?Error:?\n/.test(this.stack)) {246      // Fix for Jest that does not seem to capture the error message247      const matchErrorName = /^(?:Unexpected)?Error:?\n/.exec(this.stack);248      if (matchErrorName) {249        this.stack = this.message + this.stack.substr(matchErrorName[0].length);250      }251    }252    if (this.stack && !this.useFullStackTrace) {253      const lines = this.stack.split(/\n/);254      const stackStart = findStackStart(lines);255      const newStack = lines.filter(256        (line, i) =>257          i < stackStart ||258          (!/node_modules[/\\]unexpected(?:-[^/\\]+)?[/\\]/.test(line) &&259            !/executeExpect.*node_modules[/\\]unexpected[/\\]/.test(260              lines[i + 1]261            ))262      );263      if (newStack.length !== lines.length) {264        const indentation = /^(\s*)/.exec(lines[lines.length - 1])[1];265        if (outputFormat === 'html') {266          newStack.push(267            `${indentation}set the query parameter full-trace=true to see the full stack trace`268          );...

Using AI Code Generation

1var assert = require('assert');2var util = require('util');3function MyError(message) {4  Error.captureStackTrace(this, this.constructor);5  this.name = this.constructor.name;6  this.message = message;7}8util.inherits(MyError, Error);9function MyError2(message) {10  Error.captureStackTrace(this, this.constructor);11  this.name = this.constructor.name;12  this.message = message;13}14util.inherits(MyError2, Error);15function MyError3(message) {16  Error.captureStackTrace(this, this.constructor);17  this.name = this.constructor.name;18  this.message = message;19}20util.inherits(MyError3, Error);21function MyError4(message) {22  Error.captureStackTrace(this, this.constructor);23  this.name = this.constructor.name;24  this.message = message;25}26util.inherits(MyError4, Error);27function MyError5(message) {28  Error.captureStackTrace(this, this.constructor);29  this.name = this.constructor.name;30  this.message = message;31}32util.inherits(MyError5, Error);33function MyError6(message) {34  Error.captureStackTrace(this, this.constructor);35  this.name = this.constructor.name;36  this.message = message;37}38util.inherits(MyError6, Error);39function MyError7(message) {40  Error.captureStackTrace(this, this.constructor);41  this.name = this.constructor.name;42  this.message = message;43}44util.inherits(MyError7, Error);45function MyError8(message) {46  Error.captureStackTrace(this, this.constructor);47  this.name = this.constructor.name;48  this.message = message;49}50util.inherits(MyError8, Error);51function MyError9(message) {52  Error.captureStackTrace(this, this.constructor);53  this.name = this.constructor.name;54  this.message = message;55}56util.inherits(MyError9, Error);57function MyError10(message) {58  Error.captureStackTrace(this, this.constructor);59  this.name = this.constructor.name;60  this.message = message;61}62util.inherits(MyError10, Error);63function MyError11(message) {64  Error.captureStackTrace(this, this.constructor);65  this.name = this.constructor.name;66  this.message = message;67}68util.inherits(MyError11, Error);69function MyError12(message) {70  Error.captureStackTrace(this, this.constructor);71  this.name = this.constructor.name;72  this.message = message;73}74util.inherits(MyError12, Error);75function MyError13(message

Using AI Code Generation

1var assert = require('assert');2var util = require('util');3function CustomError(message) {4    Error.captureStackTrace(this, CustomError);5    this.message = message;6}7util.inherits(CustomError, Error);8CustomError.prototype.name = 'CustomError';9var error = new CustomError('This is a custom error');10var stack = error.stack;11var stackStartFn = CustomError;12var stackStartLine = error.stackStartFunction;13assert.equal(stackStartFn, stackStartLine);14var assert = require('assert');15var util = require('util');16function CustomError(message) {17    Error.captureStackTrace(this, CustomError);18    this.message = message;19}20util.inherits(CustomError, Error);21CustomError.prototype.name = 'CustomError';22var error = new CustomError('This is a custom error');23var stack = error.stack;24var stackStartFn = CustomError;25var stackStartLine = error.stackStartFunction;26assert.equal(stackStartFn, stackStartLine);27var assert = require('assert');28var util = require('util');29function CustomError(message) {30    Error.captureStackTrace(this, CustomError);31    this.message = message;32}33util.inherits(CustomError, Error);34CustomError.prototype.name = 'CustomError';35var error = new CustomError('This is a custom error');36var stack = error.stack;37var stackStartFn = CustomError;38var stackStartLine = error.stackStartFunction;39assert.equal(stackStartFn, stackStartLine);40var assert = require('assert');41var util = require('util');42function CustomError(message) {43    Error.captureStackTrace(this, CustomError);44    this.message = message;45}46util.inherits(CustomError, Error);47CustomError.prototype.name = 'CustomError';48var error = new CustomError('This is a custom error');49var stack = error.stack;50var stackStartFn = CustomError;51var stackStartLine = error.stackStartFunction;52assert.equal(stackStartFn, stackStartLine);53var assert = require('assert');54var util = require('util');55function CustomError(message) {56    Error.captureStackTrace(this, CustomError);57    this.message = message;58}59util.inherits(CustomError, Error);

Using AI Code Generation

1var unexpected = require('unexpected');2unexpected.findStackStart(__filename);3var unexpected = require('unexpected');4unexpected.findStackStart(__filename);5var unexpected = require('unexpected');6unexpected.findStackStart(__filename);7var unexpected = require('unexpected');8unexpected.findStackStart(__filename);9var unexpected = require('unexpected');10unexpected.findStackStart(__filename);11var unexpected = require('unexpected');12unexpected.findStackStart(__filename);13module.exports = unexpected;14var unexpected = require('./unexpected');15unexpected.findStackStart(__filename);16var unexpected = require('unexpected');17unexpected.findStackStart(__filename);18module.exports = unexpected;19var unexpected = require('./unexpected');

Using AI Code Generation

1const findStackStart = require('unexpected').findStackStart;2const stackStart = findStackStart(__filename);3console.log('stackStart', stackStart);4const findStackStart = require('unexpected').findStackStart;5const stackStart = findStackStart(__filename);6console.log('stackStart', stackStart);7const findStackStart = require('unexpected').findStackStart;8const stackStart = findStackStart(__filename);9console.log('stackStart', stackStart);10const findStackStart = require('unexpected').findStackStart;11const stackStart = findStackStart(__filename);12console.log('stackStart', stackStart);13const findStackStart = require('unexpected').findStackStart;14const stackStart = findStackStart(__filename);15console.log('stackStart', stackStart);16const findStackStart = require('unexpected').findStackStart;17const stackStart = findStackStart(__filename);18console.log('stackStart', stackStart);19const findStackStart = require('unexpected').findStackStart;20const stackStart = findStackStart(__filename);21console.log('stackStart', stackStart);22const findStackStart = require('unexpected').findStackStart;23const stackStart = findStackStart(__filename);24console.log('stackStart', stackStart);25const findStackStart = require('unexpected').findStackStart;26const stackStart = findStackStart(__filename);27console.log('stackStart', stackStart);28const findStackStart = require('unexpected').findStackStart;29const stackStart = findStackStart(__filename);30console.log('stackStart', stackStart);

Using AI Code Generation

1var unexpected = require('unexpected')2  , unexpectedError = require('unexpected-error')3  , expect = unexpected.clone().use(unexpectedError);4expect('foo', 'to equal', 'bar');5var unexpected = require('unexpected')6  , unexpectedError = require('unexpected-error')7  , expect = unexpected.clone().use(unexpectedError);8expect('foo', 'to equal', 'bar', {findStackStart: true});9var unexpected = require('unexpected')10  , unexpectedError = require('unexpected-error')11  , expect = unexpected.clone().use(unexpectedError);12expect('foo', 'to equal', 'bar', {findStackStart: true, findStackStartFilter: function (line) {13  return line.indexOf('test.js') > -1;14}});15var unexpected = require('unexpected')16  , unexpectedError = require('unexpected-error')17  , expect = unexpected.clone().use(unexpectedError);18expect('foo', 'to equal', 'bar', {findStackStart: true, findStackStartFilter: function (line) {19  return line.indexOf('test.js') > -1;20}}, function (err) {21  console.log(err.stack);22});23var unexpected = require('unexpected')24  , unexpectedError = require('unexpected-error')25  , expect = unexpected.clone().use(unexpectedError);26expect('foo', 'to equal', 'bar', {findStackStart

Using AI Code Generation

1var unexpectedError = require('unexpected-error');2var err = new Error('test error');3var err2 = unexpectedError.findStackStart(err);4console.log(err2.stack);5var unexpectedError = require('unexpected-error');6var err = new Error('test error');7var err2 = unexpectedError.findStackStart(err, 'test');8console.log(err2.stack);9var unexpectedError = require('unexpected-error');10var err = new Error('test error');11var err2 = unexpectedError.findStackStart(err, 'test', 'test.js');12console.log(err2.stack);

Using AI Code Generation

1var expect = require('unexpected').clone().use(require('unexpected-sinon'));2expect.output.preferredWidth = 80;3describe('test', function() {4    it('should do something', function() {5        expect('actual', 'to equal', 'expected');6    });7});8expect('actual', 'to equal', 'expected');9at Context.<anonymous> (test.js:6:5)10at callFn (node_modules/mocha/lib/runnable.js:351:21)11at Test.Runnable.run (node_modules/mocha/lib/runnable.js:343:7)12at Runner.runTest (node_modules/mocha/lib/runner.js:455:10)13at next (node_modules/mocha/lib/runner.js:369:14)14at next (node_modules/mocha/lib/runner.js:303:14)15at Immediate._onImmediate (node_modules/mocha/lib/runner.js:347:5)16at runCallback (timers.js:800:20)17expect('actual', 'to equal', 'expected');18at Context.<anonymous> (test.js:6:5)19at callFn (node_modules/mocha/lib/runnable.js:351:21)20at Test.Runnable.run (node_modules/mocha/lib/runnable.js:343:7)21at Runner.runTest (node_modules/mocha/lib/runner.js:455:10)22at next (node_modules/mocha/lib/runner.js:369:14)23at next (node_modules/mocha/lib/runner.js:303:14)24at Immediate._onImmediate (node_modules/mocha/lib/runner.js:347:5)25at runCallback (timers.js:800:20)26expect('actual', 'to equal', 'expected');

Using AI Code Generation

1const unexpected = require('unexpected');2const expect = unexpected.clone();3const stack = new Error().stack;4const stackStart = expect.findStackStart(stack);5console.log(stackStart);6at Object.<anonymous> (/home/user/test.js:3:1)

Using AI Code Generation

1var util = require('util');2var unexpected = require('unexpected');3var expect = unexpected.clone();4var err = new Error('foo');5console.log('Stack starts at: ' + err.stack.split('6')[0]);7console.log('Stack starts at: ' + util.inspect(err.stack.split('8')[0]));9console.log('Stack starts at: ' + expect.findStackStart(err).split('10')[0]);11console.log('Stack starts at: ' + util.inspect(expect.findStackStart(err).split('12')[0]));

Automation Testing Tutorials

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.