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Title: WebDriver support
# WebDriver support
Cog allows remote testing through the WebDriver interface. With Selenium python
bindings, you can use the `selenium.webdriver.remote.WebDriver` class to run
the tests on the target device directly from a host computer.
## Requirements
* `cog` and `WPEWebDriver` installed on the target devices.
* Selenium python bindings on the computer with the test scripts.
## Launching the WebDriver
For example, on a meta-webkit RPi3 image:
```shell
$ export WAYLAND_DISPLAY=wayland-0
$ export XDG_RUNTIME_DIR=/run/user/0
# host=all to allow requests from other machines
$ WPEWebDriver --port=8088 --host=all
```
## Connecting to the driver
In the python script:
```python
from selenium import webdriver
def capabilities():
return {
"wpe:browserOptions": {
"binary": "/usr/bin/cog",
"args": ["--automation", "--platform=wl"],
}
}
driver = webdriver.Remote(
command_executor="http://YOUR_DEVICE_IP:8088",
desired_capabilities=capabilities(),
)
```
## Using the driver
```python
from selenium.webdriver.support.ui import WebDriverWait
from selenium.webdriver.support import expected_conditions as EC
from selenium.webdriver.common.by import By
from selenium.webdriver.common.actions.action_builder import ActionBuilder
driver.get("https://lichess.org/analysis")
board = WebDriverWait(driver, 10).until(
EC.presence_of_element_located((By.CLASS_NAME, "cg-wrap"))
)
square_size = board.size["height"] / 8
# ...
actions = ActionBuilder(driver)
pointer = actions.pointer_action
pointer.move_to(board, x, y)
pointer.click()
actions.perform()
```
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