Puppeteer

Extends Helper

Uses Google Chrome's Puppeteer library to run tests inside headless Chrome. Browser control is executed via DevTools without Selenium. This helper works with a browser out of the box with no additional tools required to install.

Requires puppeteer package to be installed.

Configuration

This helper should be configured in codecept.json or codecept.conf.js

Example #1: Wait for 0 network connections.

{
   "helpers": {
     "Puppeteer" : {
       "url": "http://localhost",
       "restart": false,
       "waitForNavigation": "networkidle0",
       "waitForAction": 500
     }
   }
}

Example #2: Wait for DOMContentLoaded event and 0 network connections

{
   "helpers": {
     "Puppeteer" : {
       "url": "http://localhost",
       "restart": false,
       "waitForNavigation": [ "domcontentloaded", "networkidle0" ],
       "waitForAction": 500
     }
   }
}

Example #3: Debug in window mode

{
   "helpers": {
     "Puppeteer" : {
       "url": "http://localhost",
       "show": true
     }
   }
}

Example #4: Using remote WS endpoint

"chrome": {
  "executablePath" : "/path/to/Chrome",
  "browserWSEndpoint": "ws://localhost:3000"
}

Access From Helpers

Receive Puppeteer client from a custom helper by accessing browser for the Browser object or page for the current Page object:

const browser = this.helpers['Puppeteer'].browser;
await browser.pages(); // List of pages in the browser

const currentPage = this.helpers['Puppeteer'].page;
await currentPage.url(); // Get the url of the current page

Parameters

_addPopupListener

Add the 'dialog' event listener to a page

Parameters

_getPageUrl

Gets page URL including hash.

_locate

Get elements by different locator types, including strict locator Should be used in custom helpers:

const elements = await this.helpers['Puppeteer']._locate({name: 'password'});

Parameters

_locateCheckable

Find a checkbox by providing human readable text:

this.helpers['Puppeteer']._locateCheckable('I agree with terms and conditions').then // ...

Parameters

_locateClickable

Find a clickable element by providing human readable text:

this.helpers['Puppeteer']._locateClickable('Next page').then // ...

Parameters

_locateFields

Find field elements by providing human readable text:

this.helpers['Puppeteer']._locateFields('Your email').then // ...

Parameters

_setPage

Set current page

Parameters

acceptPopup

Accepts the active JavaScript native popup window, as created by window.alert|window.confirm|window.prompt. Don't confuse popups with modal windows, as created by various libraries.

amAcceptingPopups

Set the automatic popup response to Accept. This must be set before a popup is triggered.

I.amAcceptingPopups();
I.click('#triggerPopup');
I.acceptPopup();

amCancellingPopups

Set the automatic popup response to Cancel/Dismiss. This must be set before a popup is triggered.

I.amCancellingPopups();
I.click('#triggerPopup');
I.cancelPopup();

amOnPage

Opens a web page in a browser. Requires relative or absolute url. If url starts with /, opens a web page of a site defined in url config parameter.

I.amOnPage('/'); // opens main page of website
I.amOnPage('https://github.com'); // opens github
I.amOnPage('/login'); // opens a login page

Parameters

appendField

Appends text to a input field or textarea. Field is located by name, label, CSS or XPath

I.appendField('#myTextField', 'appended');

Parameters

attachFile

Attaches a file to element located by label, name, CSS or XPath Path to file is relative current codecept directory (where codecept.json or codecept.conf.js is located). File will be uploaded to remote system (if tests are running remotely).

I.attachFile('Avatar', 'data/avatar.jpg');
I.attachFile('form input[name=avatar]', 'data/avatar.jpg');

Parameters

cancelPopup

Dismisses the active JavaScript popup, as created by window.alert|window.confirm|window.prompt.

checkOption

Selects a checkbox or radio button. Element is located by label or name or CSS or XPath.

The second parameter is a context (CSS or XPath locator) to narrow the search.

I.checkOption('#agree');
I.checkOption('I Agree to Terms and Conditions');
I.checkOption('agree', '//form');

Parameters

clearCookie

Clears a cookie by name, if none provided clears all cookies.

I.clearCookie();
I.clearCookie('test');

Parameters

clearField

Clears a <textarea> or text <input> element's value.

I.clearField('Email');
I.clearField('user[email]');
I.clearField('#email');

Parameters

click

Perform a click on a link or a button, given by a locator. If a fuzzy locator is given, the page will be searched for a button, link, or image matching the locator string. For buttons, the "value" attribute, "name" attribute, and inner text are searched. For links, the link text is searched. For images, the "alt" attribute and inner text of any parent links are searched.

The second parameter is a context (CSS or XPath locator) to narrow the search.

// simple link
I.click('Logout');
// button of form
I.click('Submit');
// CSS button
I.click('#form input[type=submit]');
// XPath
I.click('//form/*[@type=submit]');
// link in context
I.click('Logout', '#nav');
// using strict locator
I.click({css: 'nav a.login'});

Parameters

Performs a click on a link and waits for navigation before moving on.

I.click('Logout', '#nav');

Parameters

closeCurrentTab

Close current tab and switches to previous.

I.closeCurrentTab();

closeOtherTabs

Close all tabs except for the current one.

I.closeOtherTabs();

dontSee

Opposite to see. Checks that a text is not present on a page. Use context parameter to narrow down the search.

I.dontSee('Login'); // assume we are already logged in

Parameters

dontSeeCheckboxIsChecked

Verifies that the specified checkbox is not checked.

Parameters

dontSeeCookie

Checks that cookie with given name does not exist.

Parameters

dontSeeCurrentUrlEquals

Checks that current url is not equal to provided one. If a relative url provided, a configured url will be prepended to it.

Parameters

dontSeeElement

Opposite to seeElement. Checks that element is not visible (or in DOM)

Parameters

dontSeeElementInDOM

Opposite to seeElementInDOM. Checks that element is not on page.

Parameters

dontSeeInCurrentUrl

Checks that current url does not contain a provided fragment.

Parameters

dontSeeInField

Checks that value of input field or textare doesn't equal to given value Opposite to seeInField.

Parameters

dontSeeInSource

Checks that the current page contains the given string in its raw source code.

Parameters

dontSeeInTitle

Checks that title does not contain text.

Parameters

doubleClick

Performs a double-click on an element matched by link|button|label|CSS or XPath. Context can be specified as second parameter to narrow search.

I.doubleClick('Edit');
I.doubleClick('Edit', '.actions');
I.doubleClick({css: 'button.accept'});
I.doubleClick('.btn.edit');

Parameters

dragAndDrop

Drag an item to a destination element.

I.dragAndDrop('#dragHandle', '#container');

Parameters

dragSlider

Drag the scrubber of a slider to a given position For fuzzy locators, fields are matched by label text, the "name" attribute, CSS, and XPath.

I.dragSlider('#slider', 30);
I.dragSlider('#slider', -70);

Parameters

executeAsyncScript

Executes async script on page. Provided function should execute a passed callback (as first argument) to signal it is finished.

Example: In Vue.js to make components completely rendered we are waiting for nextTick.

I.executeAsyncScript(function(done) {
Vue.nextTick(done); // waiting for next tick
});

By passing value to done() function you can return values. Additional arguments can be passed as well, while done function is always last parameter in arguments list.

let val = await I.executeAsyncScript(function(url, done) {
// in browser context
$.ajax(url, { success: (data) => done(data); }
}, 'http://ajax.callback.url/');

Parameters

executeScript

Executes sync script on a page. Pass arguments to function as additional parameters. Will return execution result to a test. In this case you should use async function and await to receive results.

Example with jQuery DatePicker:

// change date of jQuery DatePicker
I.executeScript(function() {
// now we are inside browser context
$('date').datetimepicker('setDate', new Date());
});

Can return values. Don't forget to use await to get them.

let date = await I.executeScript(function(el) {
// only basic types can be returned
return $(el).datetimepicker('getDate').toString();
}, '#date'); // passing jquery selector

Parameters

fillField

Fills a text field or textarea, after clearing its value, with the given string. Field is located by name, label, CSS, or XPath.

// by label
I.fillField('Email', 'hello@world.com');
// by name
I.fillField('password', '123456');
// by CSS
I.fillField('form#login input[name=username]', 'John');
// or by strict locator
I.fillField({css: 'form#login input[name=username]'}, 'John');

Parameters

grabAttributeFrom

Retrieves an attribute from an element located by CSS or XPath and returns it to test. Resumes test execution, so should be used inside async with await operator.

let hint = await I.grabAttributeFrom('#tooltip', 'title');

Parameters

grabBrowserLogs

Get JS log from browser.

let logs = await I.grabBrowserLogs();
console.log(JSON.stringify(logs))

grabCookie

Gets a cookie object by name. If none provided gets all cookies. Resumes test execution, so should be used inside async with await operator.

let cookie = await I.grabCookie('auth');
assert(cookie.value, '123456');

Parameters

grabCssPropertyFrom

Grab CSS property for given locator Resumes test execution, so should be used inside an async function with await operator.

const value = await I.grabCssPropertyFrom('h3', 'font-weight');

Parameters

grabCurrentUrl

Get current URL from browser. Resumes test execution, so should be used inside an async function.

let url = await I.grabCurrentUrl();
console.log(`Current URL is [${url}]`);

grabHTMLFrom

Retrieves the innerHTML from an element located by CSS or XPath and returns it to test. Resumes test execution, so should be used inside async function with await operator.

let postHTML = await I.grabHTMLFrom('#post');

Parameters

grabNumberOfOpenTabs

Grab number of open tabs.

I.grabNumberOfOpenTabs();

grabNumberOfVisibleElements

Grab number of visible elements by locator.

I.grabNumberOfVisibleElements('p');

Parameters

grabPageScrollPosition

Retrieves a page scroll position and returns it to test. Resumes test execution, so should be used inside an async function with await operator.

let { x, y } = await I.grabPageScrollPosition();

grabPopupText

Grab the text within the popup. If no popup is visible then it will return null

await I.grabPopupText();

grabSource

Retrieves page source and returns it to test. Resumes test execution, so should be used inside an async function.

let pageSource = await I.grabSource();

grabTextFrom

Retrieves a text from an element located by CSS or XPath and returns it to test. Resumes test execution, so should be used inside async with await operator.

let pin = await I.grabTextFrom('#pin');

If multiple elements found returns an array of texts.

Parameters

grabTitle

Retrieves a page title and returns it to test. Resumes test execution, so should be used inside async with await operator.

let title = await I.grabTitle();

grabValueFrom

Retrieves a value from a form element located by CSS or XPath and returns it to test. Resumes test execution, so should be used inside async function with await operator.

let email = await I.grabValueFrom('input[name=email]');

Parameters

haveRequestHeaders

Set headers for all next requests

I.haveRequestHeaders({
   'X-Sent-By': 'CodeceptJS',
});

Parameters

moveCursorTo

Moves cursor to element matched by locator. Extra shift can be set with offsetX and offsetY options.

I.moveCursorTo('.tooltip');
I.moveCursorTo('#submit', 5,5);

Parameters

openNewTab

Open new tab and switch to it

I.openNewTab();

pressKey

Presses a key on a focused element. Special keys like 'Enter', 'Control', etc will be replaced with corresponding unicode. If modifier key is used (Control, Command, Alt, Shift) in array, it will be released afterwards.

I.pressKey('Enter');
I.pressKey(['Control','a']);

Parameters

refreshPage

Reload the current page.

`I.refreshPage();

resizeWindow

Resize the current window to provided width and height. First parameter can be set to maximize.

Parameters

rightClick

Performs right click on an element matched by CSS or XPath.

Parameters

saveScreenshot

Saves a screenshot to ouput folder (set in codecept.json or codecept.conf.js). Filename is relative to output folder. Optionally resize the window to the full available page scrollHeight and scrollWidth to capture the entire page by passing true in as the second argument.

I.saveScreenshot('debug.png');
I.saveScreenshot('debug.png', true) //resizes to available scrollHeight and scrollWidth before taking screenshot

Parameters

scrollPageToBottom

Scroll page to the bottom.

I.scrollPageToBottom();

scrollPageToTop

Scroll page to the top.

I.scrollPageToTop();

scrollTo

Scrolls to element matched by locator. Extra shift can be set with offsetX and offsetY options.

I.scrollTo('footer');
I.scrollTo('#submit', 5, 5);

Parameters

see

Checks that a page contains a visible text. Use context parameter to narrow down the search.

I.see('Welcome'); // text welcome on a page
I.see('Welcome', '.content'); // text inside .content div
I.see('Register', {css: 'form.register'}); // use strict locator

Parameters

seeAttributesOnElements

Checks that all elements with given locator have given attributes.

I.seeAttributesOnElements('//form', {'method': "post"});

Parameters

seeCheckboxIsChecked

Verifies that the specified checkbox is checked.

I.seeCheckboxIsChecked('Agree');
I.seeCheckboxIsChecked('#agree'); // I suppose user agreed to terms
I.seeCheckboxIsChecked({css: '#signup_form input[type=checkbox]'});

Parameters

seeCookie

Checks that cookie with given name exists.

I.seeCookie('Auth');

Parameters

seeCssPropertiesOnElements

Checks that all elements with given locator have given CSS properties.

I.seeCssPropertiesOnElements('h3', { 'font-weight': "bold"});

Parameters

seeCurrentUrlEquals

Checks that current url is equal to provided one. If a relative url provided, a configured url will be prepended to it. So both examples will work:

I.seeCurrentUrlEquals('/register');
I.seeCurrentUrlEquals('http://my.site.com/register');

Parameters

seeElement

Checks that a given Element is visible Element is located by CSS or XPath.

I.seeElement('#modal');

Parameters

seeElementInDOM

Checks that a given Element is present in the DOM Element is located by CSS or XPath.

I.seeElementInDOM('#modal');

Parameters

seeInCurrentUrl

Checks that current url contains a provided fragment.

I.seeInCurrentUrl('/register'); // we are on registration page

Parameters

seeInField

Checks that the given input field or textarea equals to given value. For fuzzy locators, fields are matched by label text, the "name" attribute, CSS, and XPath.

I.seeInField('Username', 'davert');
I.seeInField({css: 'form textarea'},'Type your comment here');
I.seeInField('form input[type=hidden]','hidden_value');
I.seeInField('#searchform input','Search');

Parameters

seeInPopup

Checks that the active JavaScript popup, as created by window.alert|window.confirm|window.prompt, contains the given string.

Parameters

seeInSource

Checks that the current page contains the given string in its raw source code.

I.seeInSource('<h1>Green eggs &amp; ham</h1>');

Parameters

seeInTitle

Checks that title contains text.

Parameters

seeNumberOfElements

asserts that an element appears a given number of times in the DOM Element is located by label or name or CSS or XPath.

I.seeNumberOfElements('#submitBtn', 1);

Parameters

seeNumberOfVisibleElements

Asserts that an element is visible a given number of times. Element is located by CSS or XPath.

I.seeNumberOfVisibleElements('.buttons', 3);

Parameters

seeTextEquals

Checks that text is equal to provided one.

I.seeTextEquals('text', 'h1');

Parameters

seeTitleEquals

Checks that title is equal to provided one.

I.seeTitleEquals('Test title.');

Parameters

selectOption

Selects an option in a drop-down select. Field is searched by label | name | CSS | XPath. Option is selected by visible text or by value.

I.selectOption('Choose Plan', 'Monthly'); // select by label
I.selectOption('subscription', 'Monthly'); // match option by text
I.selectOption('subscription', '0'); // or by value
I.selectOption('//form/select[@name=account]','Premium');
I.selectOption('form select[name=account]', 'Premium');
I.selectOption({css: 'form select[name=account]'}, 'Premium');

Provide an array for the second argument to select multiple options.

I.selectOption('Which OS do you use?', ['Android', 'iOS']);

Parameters

setCookie

Sets a cookie.

I.setCookie({name: 'auth', value: true});

Parameters

switchTo

Switches frame or in case of null locator reverts to parent.

Parameters

switchToNextTab

Switch focus to a particular tab by its number. It waits tabs loading and then switch tab

I.switchToNextTab();
I.switchToNextTab(2);

Parameters

switchToPreviousTab

Switch focus to a particular tab by its number. It waits tabs loading and then switch tab

I.switchToPreviousTab();
I.switchToPreviousTab(2);

Parameters

wait

Pauses execution for a number of seconds.

I.wait(2); // wait 2 secs

Parameters

waitForDetached

Waits for an element to become not attached to the DOM on a page (by default waits for 1sec). Element can be located by CSS or XPath.

I.waitForDetached('#popup');

Parameters

waitForElement

Waits for element to be present on page (by default waits for 1sec). Element can be located by CSS or XPath.

I.waitForElement('.btn.continue');
I.waitForElement('.btn.continue', 5); // wait for 5 secs

Parameters

waitForEnabled

Waits for element to become enabled (by default waits for 1sec). Element can be located by CSS or XPath.

Parameters

waitForFunction

Waits for a function to return true (waits for 1 sec by default). Running in browser context.

I.waitForFunction(fn[, [args[, timeout]])

I.waitForFunction(() => window.requests == 0);
I.waitForFunction(() => window.requests == 0, 5); // waits for 5 sec
I.waitForFunction((count) => window.requests == count, [3], 5) // pass args and wait for 5 sec

Parameters

waitForInvisible

Waits for an element to be removed or become invisible on a page (by default waits for 1sec). Element can be located by CSS or XPath.

I.waitForInvisible('#popup');

Parameters

waitForNavigation

Waits for navigation to finish. By default takes configured waitForNavigation option.

See Pupeteer's reference

Parameters

waitForRequest

Waits for a network request.

I.waitForRequest('http://example.com/resource');
I.waitForRequest(request => request.url() === 'http://example.com' && request.method() === 'GET');

Parameters

waitForResponse

Waits for a network request.

I.waitForResponse('http://example.com/resource');
I.waitForResponse(request => request.url() === 'http://example.com' && request.method() === 'GET');

Parameters

waitForText

Waits for a text to appear (by default waits for 1sec). Element can be located by CSS or XPath. Narrow down search results by providing context.

I.waitForText('Thank you, form has been submitted');
I.waitForText('Thank you, form has been submitted', 5, '#modal');

Parameters

waitForValue

Waits for the specified value to be in value attribute.

I.waitForValue('//input', "GoodValue");

Parameters

waitForVisible

Waits for an element to become visible on a page (by default waits for 1sec). Element can be located by CSS or XPath.

I.waitForVisible('#popup');

Parameters

waitInUrl

Waiting for the part of the URL to match the expected. Useful for SPA to understand that page was changed.

I.waitInUrl('/info', 2);

Parameters

waitNumberOfVisibleElements

Waits for a specified number of elements on the page.

I.waitNumberOfVisibleElements('a', 3);

Parameters

waitToHide

Waits for an element to hide (by default waits for 1sec). Element can be located by CSS or XPath.

I.waitToHide('#popup');

Parameters

waitUntil

Waits for a function to return true (waits for 1sec by default).

I.waitUntil(() => window.requests == 0);
I.waitUntil(() => window.requests == 0, 5);

Parameters

waitUrlEquals

Waits for the entire URL to match the expected

I.waitUrlEquals('/info', 2);
I.waitUrlEquals('http://127.0.0.1:8000/info');

Parameters