appium-xcuitest-driver

Note: Issue tracking for this repo has been disabled. Please use the main Appium issue tracker instead.

Missing functionality

• Setting geo location (appium/appium#6856)
• Auto accepting/dismissing alerts (appium/appium#6863)
• Touch Actions

Known issues

• Unable to interact with elements on devices in Landscape mode (appium/appium#6994)
• shake is not implemented due to lack of support from Apple
• lock is not implemented due to lack of support from Apple
• Setting geo-location not supported due to lack of support from Apple
• Through multi action API, zoom works but pinch does not, due to Apple issue.

External dependencies

In addition to the git submodules mentioned below (see Development), this package currently depends on libimobiledevice to do certain things. Install it with Homebrew,

brew install libimobiledevice --HEAD  # install from HEAD to get important updates
brew install ideviceinstaller         # only works for ios 9. for ios 10, see below

There is also a dependency, made necessary by Facebook's WebDriverAgent, for the Carthage dependency manager. If you do not have Carthage on your system, it can also be installed with Homebrew

brew install carthage

ideviceinstaller doesn't work with iOS 10 yet. So we need to install ios-deploy

npm install -g ios-deploy

For real devices we can use xcpretty to make Xcode output more reasonable. This can be installed by

gem install xcpretty

Sim Resetting

By default, this driver will create a new iOS simulator and run tests on it, deleting the simulator afterward.

If you specify a specific simulator using the udid capability, this driver will boot the specified simulator and shut it down afterwards.

If a udid is provided and the simulator is already running, this driver will leave it running after the test run.

In short, this driver tries to leave things as it found them.

You can use the noReset capability to adjust this behavior. Setting noReset to true will leave the simulator running at the end of a test session.

Real devices

Configuration

See real device configuration documentation.

Known problems

After many failures on real devices, there can be a state where the device will no longer accept connections. To possibly remedy this, set the useNewWDA capability to true.

Weird state

Note: Running WebDriverAgent tests on a real device is particularly flakey. If things stop responding, the only recourse is, most often, to restart the device. Logs in the form of the following may start to occur:

info JSONWP Proxy Proxying [POST /session] to [POST http://10.35.4.122:8100/session] with body: {"desiredCapabilities":{"ap..."
dbug WebDriverAgent Device: Jul 26 13:20:42 iamPhone XCTRunner[240] <Warning>: Listening on USB
dbug WebDriverAgent Device: Jul 26 13:21:42 iamPhone XCTRunner[240] <Warning>: Enqueue Failure: UI Testing Failure - Unable to update application state promptly. <unknown> 0 1
dbug WebDriverAgent Device: Jul 26 13:21:57 iamPhone XCTRunner[240] <Warning>: Enqueue Failure: UI Testing Failure - Failed to get screenshot within 15s <unknown> 0 1
dbug WebDriverAgent Device: Jul 26 13:22:57 iamPhone XCTRunner[240] <Warning>: Enqueue Failure: UI Testing Failure - App state of (null) is still unknown <unknown> 0 1

Real device security settings

On some systems there are Accessibility restrictions that make the WebDriverAgent system unable to run. This is usually manifest by xcodebuild returning an error code 65. A workaround for this is to use a private key that is not stored on the system keychain. See this issue and this Stack Exchange post.

To export the key, use

security create-keychain -p [keychain_password] MyKeychain.keychain
security import MyPrivateKey.p12 -t agg -k MyKeychain.keychain -P [p12_Password] -A

where MyPrivateKey.p12 is the private development key exported from the system keychain.

The full path to the keychain can then be sent to the Appium system using the keychainPath desired capability, and the password sent through the keychainPassword capability.

Desired Capabilities

Should be the same for Appium

Differences noted here

Capability	Description	Values
noReset	Do not destroy or shut down sim after test. Start tests running on whichever sim is running, or device is plugged in. Default false	true, false
processArguments	Process arguments and environment which will be sent to the WebDriverAgent server.	{ args: ["a", "b", "c"] , env: { "a": "b", "c": "d" } } or '{"args": ["a", "b", "c"], "env": { "a": "b", "c": "d" }}'
wdaLocalPort	This value if specified, will be used to forward traffic from Mac host to real ios devices over USB. Default value is same as port number used by WDA on device.	e.g., 8100
showXcodeLog	Whether to display the output of the Xcode command used to run the tests. If this is true, there will be lots of extra logging at startup. Defaults to false	e.g., true
iosInstallPause	Time in milliseconds to pause between installing the application and starting WebDriverAgent on the device. Used particularly for larger applications. Defaults to 0	e.g., 8000
xcodeOrgId	Apple developer team identifier string. Must be used in conjunction with xcodeSigningId to take effect.	e.g., JWL241K123
xcodeSigningId	String representing a signing certificate. Must be used in conjunction with xcodeOrgId. This is usually just iPhone Developer, so the default (if not included) is iPhone Developer	e.g., iPhone Developer
xcodeConfigFile	Full path to an optional Xcode configuration file that specifies the code signing identity and team for running the WebDriverAgent on the real device.	e.g., /path/to/myconfig.xcconfig
updatedWDABundleId	Bundle id to update WDA to before building and launching on real devices. This bundle id must be associated with a valid provisioning profile.	e.g., io.appium.WebDriverAgentRunner
keychainPath	Full path to the private development key exported from the system keychain. Used in conjunction with keychainPassword when testing on real devices.	e.g., /path/to/MyPrivateKey.p12
keychainPassword	Password for unlocking keychain specified in keychainPath.	e.g., super awesome password
scaleFactor	Simulator scale factor. This is useful to have if the default resolution of simulated device is greater than the actual display resolution. So you can scale the simulator to see the whole device screen without scrolling.	Acceptable values are: '1.0', '0.75', '0.5', '0.33' and '0.25'. The value should be a string.
usePrebuiltWDA	Skips the build phase of running the WDA app. Building is then the responsibility of the user. Only works for Xcode 8+. Defaults to false.	e.g., true
preventWDAAttachments	Sets read only permissions to Attachments subfolder of WebDriverAgent root inside Xcode's DerivedData. This is necessary to prevent XCTest framework from creating tons of unnecessary screenshots and logs, which are impossible to shutdown using programming interfaces provided by Apple.	Setting the capability to true will set Posix permissions of the folder to 555 and false will reset them back to 755
webDriverAgentUrl	If provided, Appium will connect to an existing WebDriverAgent instance at this URL instead of starting a new one.	e.g., http://localhost:8100
useNewWDA	If true, forces uninstall of any existing WebDriverAgent app on device. This can provide stability in some situations. Defaults to false.	e.g., true
wdaLaunchTimeout	Time, in ms, to wait for WebDriverAgewnt to be pingable. Defaults to 60000ms.	e.g., 30000
wdaConnectionTimeout	Timeout, in ms, for waiting for a response from WebDriverAgent. Defaults to 240000ms.	e.g., 1000
resetOnSessionStartOnly	Whether to perform reset on test session finish (false) or not (true). Keeping this variable set to true and Simulator running (the default behaviour since version 1.6.4) may significantly shorten the duratiuon of test session initialization.	Either true or false. Defaults to true
commandTimeouts	Custom timeout(s) in milliseconds for WDA backend commands execution. This might be useful if WDA backend freezes unexpectedly or requires too much time to fail and blocks automated test execution. The value is expected to be of type string and can either contain max milliseconds to wait for each WDA command to be executed before terminating the session forcefully or a valid JSON string, where keys are internal Appium command names (you can find these in logs, look for "Executing command 'command_name'" records) and values are timeouts in milliseconds. You can also set the 'default' key to assign the timeout for all other commands not explicitly enumerated as JSON keys.	'120000', '{"findElement": 40000, "findElements": 40000, "setValue": 20000, "default": 120000}'
wdaStartupRetries	Number of times to try to build and launch WebDriverAgent onto the device. Defaults to 2.	e.g., 4
wdaStartupRetryInterval	Time, in ms, to wait between tries to build and launch WebDriverAgent. Defaults to 10000ms.	e.g., 20000

Development

This project has git submodules!

Clone with the git clone --recursive flag. Or, after cloning normally run git submodule init and then git submodule update

The git diff --submodule flag is useful here. It can also be set as the default diff format: git config --global diff.submodule log

git config status.submodulesummary 1 is also useful.

Watch

npm run watch

Test

npm test

There are also a number of environment variables that can be used when running the tests locally. These include:

• REAL_DEVICE - set to anything truthy, makes the tests use real device capabilities
• _FORCE_LOGS - set to 1 to get the log output, not just spec
• PLATFORM_VERSION - change the version to run the tests against (defaults to 9.3)
• XCCONFIG_FILE - specify where the xcode config file is for a real device run (if blank, and running a real device test, it will search for the first file in the root directory of the repo with the extension "xcconfig")
• UICATALOG_REAL_DEVICE - path to the real device build of UICatalog, in case the npm installed one is not built for real device

WebDriverAgent Updating

Updating FaceBook's WebDriverAgent is as simple as running updating the submodule and then committing the change:

git checkout -b <update-branch-name>
git submodule update --remote
git add WebDriverAgent
git commit -m "Updating upstream WebDriverAgent changes"

There is a chance that the update changed something critical, which will manifest itself as xcodebuild throwing errors. The easiest remedy is to delete the files, which are somewhere like /Users/isaac/Library/Developer/Xcode/DerivedData/WebDriverAgent-eoyoecqmiqfeodgstkwbxkfyagll. This is also necessary when switching SDKs (e.g., moving from Xcode 7.3 to 8).