Appium FlaUI Driver

This project is heavily based on appium-windows-driver and the code is currently not thoroughly tested, please keep that in mind

Appium FlaUI Driver is a test automation tool for Windows devices and acts as a proxy to FlaUI.WebDriver server. Appium FlaUI Driver supports testing Universal Windows Platform (UWP), Windows Forms (WinForms), Windows Presentation Foundation (WPF), and Classic Windows (Win32) apps on Windows 10 PCs. The server itself is maintained by aristotelos and core Library is maintained by Roemer at https://github.com/FlaUI/FlaUI. Check its release notes and the documentation to get more details on the supported features and possible pitfalls.

Note

This driver is only compatible with Appium 2.

Usage

Beside of standard Appium requirements Appium FlaUI Driver adds the following prerequisites:

• Appium FlaUI Driver only supports Windows 10 as the host.
• Developer mode must be enabled
• Appium downloads FlaUI.WebDriver executable automatically upon executing its installation scripts, although, the actual binary version could be out of date. In such case you could download the most recent version of FlaUI.WebDriver manually from the GitHub releases page.

Appium FlaUI Driver supports the following capabilities:

Example

TODO

Power Shell commands execution

In the driver there is a possibility to run custom Power Shell scripts from your client code. This feature is potentially insecure and thus needs to be explicitly enabled when executing the server by providing power_shell key to the list of enabled insecure features. Refer to Appium Security document for more details. It is possible to ether execute a single Power Shell command (use the command argument) or a whole script (use the script argument) and get its stdout in response. If the script execution returns non-zero exit code then an exception is going to be thrown. The exception message will contain the actual stderr. Here's an example code of how to control the Notepad process:

// java
String psScript =
  "$sig = '[DllImport(\"user32.dll\")] public static extern bool ShowWindowAsync(IntPtr hWnd, int nCmdShow);'\n" +
  "Add-Type -MemberDefinition $sig -name NativeMethods -namespace Win32\n" +
  "Start-Process Notepad\n" +
  "$hwnd = @(Get-Process Notepad)[0].MainWindowHandle\n" +
  "[Win32.NativeMethods]::ShowWindowAsync($hwnd, 2)\n" +
  "[Win32.NativeMethods]::ShowWindowAsync($hwnd, 4)\n" +
  "Stop-Process -Name Notepad";
driver.executeScript("powerShell", ImmutableMap.of("script", psScript));

Another example, which demonstrates how to use the command output:

# python
cmd = 'Get-Process outlook -ErrorAction SilentlyContinue'
proc_info = driver.execute_script('powerShell', {'command': cmd})
if proc_info:
    print('Outlook is running')
else:
    print('Outlook is not running')

Element Location

Appium FlaUI Driver supports the same location strategies the FlaUI.WebDriver supports:

Platform-Specific Extensions

Beside of standard W3C APIs the driver provides the below custom command extensions to execute platform specific scenarios. Use the following source code examples in order to invoke them from your client code:

// Java 11+
var result = driver.executeScript("windows: <methodName>", Map.of(
    "arg1", "value1",
    "arg2", "value2"
    // you may add more pairs if needed or skip providing the map completely
    // if all arguments are defined as optional
));

// WebdriverIO
const result = await driver.executeScript('windows: <methodName>', [
  {
    arg1: 'value1',
    arg2: 'value2',
  },
]);

# Python
result = driver.execute_script('windows: <methodName>', {
    'arg1': 'value1',
    'arg2': 'value2',
})

# Ruby
result = @driver.execute_script 'windows: <methodName>', {
    arg1: 'value1',
    arg2: 'value2',
}

// Dotnet
object result = driver.ExecuteScript("windows: <methodName>", new Dictionary<string, object>() {
    {"arg1", "value1"},
    {"arg2", "value2"}
});

windows: startRecordingScreen

Record the display in background while the automated test is running. This method requires FFMPEG to be installed and present in PATH. The resulting video uses H264 codec and is ready to be played by media players built-in into web browsers.

Arguments

windows: stopRecordingScreen

Stop recording the screen. If no screen recording has been started before then the method returns an empty string.

Arguments

Returns

Base64-encoded content of the recorded media file if remotePath parameter is falsy or an empty string.

windows: deleteFile

Remove the file from the file system. This feature is potentially insecure and thus needs to be explicitly enabled when executing the server by providing modify_fs key to the list of enabled insecure features. Refer to Appium Security document for more details.

Arguments

windows: deleteFolder

Remove the folder from the file system. This feature is potentially insecure and thus needs to be explicitly enabled when executing the server by providing modify_fs key to the list of enabled insecure features. Refer to Appium Security document for more details.

Arguments

windows: launchApp

(Re)launch app under test in the same session using the same capabilities configuration given on the session startup. Generally this API would create a new app window and point the current active session to it, but the actual result may vary depending on how the actual application under test handles multiple instances creation. Check It is possible to switch between app windows using WebDriver Windows API

windows: closeApp

It is possible to switch between opened app windows using WebDriver Windows API. After the current app window is closed it is required to use the above API to switch to another active window if there is any. windows: closeApp call does not perform the switch automatically. An error is thrown if the app under test is not running.

windows: click

This is a shortcut for a single mouse click gesture.

Arguments

windows: scroll

This is a shortcut for a mouse wheel scroll gesture. The API is a thin wrapper over the SendInput WinApi call. It emulates the mouse cursor movement and/or horizontal/vertical rotation of the mouse wheel. Thus make sure the target control is ready to receive mouse wheel events (e.g. is focused) before invoking it.

Arguments

windows: clickAndDrag

This is a shortcut for a drag and drop gesture. | CSS selector | "css selector" | Only ID, class or name attribute selectors. IDs are interpreted as automation IDs. |

Arguments

windows: hover

This is a shortcut for a hover gesture.

Arguments

windows: keys

This is a shortcut for a customized keyboard input.

Arguments

KeyAction

windows: setClipboard

Sets Windows clipboard content to the given text or a PNG image.

Arguments

windows: getClipboard

Retrieves Windows clipboard content.

Arguments

Returns

Base-64 encoded content of the Windows clipboard.

Environment Variables

Appium FlaUI Driver supports the following environment variables:

Development

# Checkout the current repository and run
npm install

Test

You can run unit and e2e tests locally:

# unit tests
npm run unit-test

# e2e tests
npm run e2e-test