Detox.md

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Detox

Detox

Extends Helper

This is a wrapper on top of Detox library, aimied to unify testing experience for CodeceptJS framework. Detox provides a grey box testing for mobile applications, playing especially good for React Native apps.

Detox plays quite differently from Appium. To establish detox testing you need to build a mobile application in a special way to inject Detox code. This why Detox is grey box testing solution, so you need an access to application source code, and a way to build and execute it on emulator.

Comparing to Appium, Detox runs faster and more stable but requires an additional setup for build.

Setup

1. Install and configure Detox for iOS and Android

2. Build an application using detox build command.

3. Install CodeceptJS and detox-helper:

   npm i @codeceptjs/detox-helper --save

Detox configuration is required in package.json under detox section.

If you completed step 1 and step 2 you should have a configuration similar this:

 "detox": {
   "configurations": {
     "ios.sim.debug": {
       "binaryPath": "ios/build/Build/Products/Debug-iphonesimulator/example.app",
       "build": "xcodebuild -project ios/example.xcodeproj -scheme example -configuration Debug -sdk iphonesimulator -derivedDataPath ios/build",
       "type": "ios.simulator",
       "name": "iPhone 7"
     }
   }
 }

Configuration

Besides Detox configuration, CodeceptJS should also be configured to use Detox.

In codecept.conf.js enable Detox helper:

helpers: {
   Detox: {
     require: '@codeceptjs/detox-helper',
     configuration: '<detox-configuration-name>', 
   }   
}

It's important to specify a package name under require section and current detox configuration taken from package.json.

Options:

• configuration - a detox configuration name. Required.
• reloadReactNative - should be enabled for React Native applications.
• reuse - reuse application for tests. By default, Detox reinstalls and relaunches app.
• registerGlobals - (default: true) Register Detox helper functions by, element, expect, waitFor globally.

Parameters

• config

appendField

Appends text into the field. A field can be located by text, accessibility id, id.

I.appendField('name', 'davert');

Parameters

• field (string | object)
• value string

clearField

Clears a text field. A field can be located by text, accessibility id, id.

I.clearField('~name');

Parameters

• field (string | object) an input element to clear

click

Clicks on an element. Element can be located by its text or id or accessibility id

The second parameter is a context (id | type | accessibility id) to narrow the search.

Same as tap

I.click('Login'); // locate by text
I.click('~nav-1'); // locate by accessibility label
I.click('#user'); // locate by id
I.click('Login', '#nav'); // locate by text inside #nav
I.click({ ios: 'Save', android: 'SAVE' }, '#main'); // different texts on iOS and Android

Parameters

• locator (string | object)
• context (string | object | null) (optional, default null)

clickAtPoint

Performs click on element with horizontal and vertical offset. An element is located by text, id, accessibility id.

I.clickAtPoint('Save', 10, 10);
I.clickAtPoint('~save', 10, 10); // locate by accessibility id

Parameters

• locator (string | object)
• x number horizontal offset (optional, default 0)
• y number vertical offset (optional, default 0)

dontSee

Checks text not to be visible. Use second parameter to narrow down the search.

I.dontSee('Record created');
I.dontSee('Record updated', '#message');
I.dontSee('Record deleted', '~message');

Parameters

• text string to check invisibility
• context (string | object | null) element in which to search for text (optional, default null)

dontSeeElement

Checks that element is not visible. Use second parameter to narrow down the search.

I.dontSeeElement('~edit'); // located by accessibility id
I.dontSeeElement('~edit', '#menu'); // element inside #menu

Parameters

• locator (string | object) element to locate
• context (string | object | null) context element (optional, default null)

dontSeeElementExists

Checks that element not exists. Use second parameter to narrow down the search.

I.dontSeeElementExist('~edit'); // located by accessibility id
I.dontSeeElementExist('~edit', '#menu'); // element inside #menu

Parameters

• locator (string | object) element to locate
• context (string | object) context element (optional, default null)

fillField

Fills in text field in an app. A field can be located by text, accessibility id, id.

I.fillField('Username', 'davert');
I.fillField('~name', 'davert');
I.fillField({ android: 'NAME', ios: 'name' }, 'davert');

Parameters

• field (string | object) an input element to fill in
• value string value to fill

goBack

Goes back on Android

I.goBack(); // on Android only

installApp

Installs a configured application. Application is installed by default.

I.installApp();

launchApp

Launches an application. If application instance already exists, use relaunchApp.

I.launchApp();

longPress

Taps an element and holds for a requested time.

I.longPress('Login', 2); // locate by text, hold for 2 seconds
I.longPress('~nav', 1); // locate by accessibility label, hold for second
I.longPress('Update', 2, '#menu'); // locate by text inside #menu, hold for 2 seconds

Parameters

• locator (string | object) element to locate
• sec number number of seconds to hold tap
• context (string | object | null) context element (optional, default null)

multiTap

Multi taps on an element. Element can be located by its text or id or accessibility id.

Set the number of taps in second argument. Optionally define the context element by third argument.

I.multiTap('Login', 2); // locate by text
I.multiTap('~nav', 2); // locate by accessibility label
I.multiTap('#user', 2); // locate by id
I.multiTap('Update', 2, '#menu'); // locate by id

Parameters

• locator (string | object) element to locate
• num number number of taps
• context (string | object | null) context element (optional, default null)

relaunchApp

Relaunches an application.

I.relaunchApp();

runOnAndroid

Execute code only on Android

I.runOnAndroid(() => {
   I.click('Button');
   I.see('Hi, Android');
});

Parameters

• fn Function a function which will be executed on android

runOnIOS

Execute code only on iOS

I.runOnIOS(() => {
   I.click('Button');
   I.see('Hi, IOS');
});

Parameters

• fn Function a function which will be executed on iOS

saveScreenshot

Saves a screenshot to the output dir

I.saveScreenshot('main-window.png');

Parameters

• name string

scrollDown

Scrolls to the bottom of an element.

I.scrollDown('#container');

Parameters

• locator (string | object)

scrollLeft

Scrolls to the left of an element.

I.scrollLeft('#container');

Parameters

• locator (string | object)

scrollRight

Scrolls to the right of an element.

I.scrollRight('#container');

Parameters

• locator (string | object)

scrollUp

Scrolls to the top of an element.

I.scrollUp('#container');

Parameters

• locator (string | object)

see

Checks text to be visible. Use second parameter to narrow down the search.

I.see('Record created');
I.see('Record updated', '#message');
I.see('Record deleted', '~message');

Parameters

• text string to check visibility
• context (string | object | null) element inside which to search for text (optional, default null)

seeElement

Checks for visibility of an element. Use second parameter to narrow down the search.

I.seeElement('~edit'); // located by accessibility id
I.seeElement('~edit', '#menu'); // element inside #menu

Parameters

• locator (string | object) element to locate
• context (string | object | null) context element (optional, default null)

seeElementExists

Checks for existence of an element. An element can be visible or not. Use second parameter to narrow down the search.

I.seeElementExists('~edit'); // located by accessibility id
I.seeElementExists('~edit', '#menu'); // element inside #menu

Parameters

• locator (string | object) element to locate
• context (string | object) context element (optional, default null)

setLandscapeOrientation

Switches device to landscape orientation

I.setLandscapeOrientation();

setPortraitOrientation

Switches device to portrait orientation

I.setPortraitOrientation();

shakeDevice

Shakes the device.

I.shakeDevice();

swipeDown

Performs a swipe up inside an element. Can be slow or fast swipe.

I.swipeUp('#container');

Parameters

• locator (string | object) an element on which to perform swipe
• speed string a speed to perform: slow or fast. (optional, default 'slow')

swipeLeft

Performs a swipe up inside an element. Can be slow or fast swipe.

I.swipeUp('#container');

Parameters

• locator (string | object) an element on which to perform swipe
• speed string a speed to perform: slow or fast. (optional, default 'slow')

swipeRight

Performs a swipe up inside an element. Can be slow or fast swipe.

I.swipeUp('#container');

Parameters

• locator (string | object) an element on which to perform swipe
• speed string a speed to perform: slow or fast. (optional, default 'slow')

swipeUp

Performs a swipe up inside an element. Can be slow or fast swipe.

I.swipeUp('#container');

Parameters

• locator (string | object) an element on which to perform swipe
• speed string a speed to perform: slow or fast. (optional, default 'slow')

tap

Taps on an element. Element can be located by its text or id or accessibility id.

The second parameter is a context element to narrow the search.

Same as click

I.tap('Login'); // locate by text
I.tap('~nav-1'); // locate by accessibility label
I.tap('#user'); // locate by id
I.tap('Login', '#nav'); // locate by text inside #nav
I.tap({ ios: 'Save', android: 'SAVE' }, '#main'); // different texts on iOS and Android

Parameters

• locator (string | object)
• context (string | object | null) (optional, default null)

wait

Waits for number of seconds

I.wait(2); // waits for 2 seconds

Parameters

• sec number number of seconds to wait

waitForElement

Waits for an element to exist on page.

I.waitForElement('#message', 1); // wait for 1 second

Parameters

• locator (string | object) an element to wait for
• sec number number of seconds to wait, 5 by default (optional, default 5)

waitForElementVisible

Waits for an element to be visible on page.

I.waitForElementVisible('#message', 1); // wait for 1 second

Parameters

• locator (string | object) an element to wait for
• sec number number of seconds to wait (optional, default 5)

waitToHide

Waits an elment to become not visible.

I.waitToHide('#message', 2); // wait for 2 seconds

Parameters

• locator (string | object) an element to wait for
• sec number number of seconds to wait (optional, default 5)