### Install xvfbwrapper

Source: https://github.com/cgoldberg/xvfbwrapper/blob/master/README.md

Install the library using pip. Ensure Python 3.10+ and Xvfb are installed on your system.

```bash
pip install xvfbwrapper
```

--------------------------------

### Install Development Dependencies

Source: https://github.com/cgoldberg/xvfbwrapper/blob/master/README.md

Sets up a virtual environment and installs the necessary packages for development and testing of xvfbwrapper. Includes editable installation.

```bash
python -m venv venv
source ./venv/bin/activate
pip install --editable --group dev --group test .
```

--------------------------------

### Basic Xvfb Usage

Source: https://github.com/cgoldberg/xvfbwrapper/blob/master/README.md

Start and stop Xvfb manually. Always use a try/finally block to ensure the display is stopped, preventing leftover files in /tmp.

```python
from xvfbwrapper import Xvfb

xvfb = Xvfb()
xvfb.start()
try:
    # launch stuff inside virtual display here
finally:
    xvfb.stop()
```

--------------------------------

### Specify Xvfb Display Geometry

Source: https://github.com/cgoldberg/xvfbwrapper/blob/master/README.md

Start Xvfb with a specific screen resolution. The display will be stopped automatically if used as a context manager.

```python
from xvfbwrapper import Xvfb

xvfb = Xvfb(width=1280, height=720)
xvfb.start()
```

--------------------------------

### Xvfb Usage as a Context Manager

Source: https://github.com/cgoldberg/xvfbwrapper/blob/master/README.md

Use Xvfb as a context manager for automatic start and stop. The display stops when the block completes.

```python
from xvfbwrapper import Xvfb

with Xvfb():
    # launch stuff inside virtual display here
    # (Xvfb will stop when this block completes)
```

--------------------------------

### Specify Xvfb Options with Keyword Arguments

Source: https://github.com/cgoldberg/xvfbwrapper/blob/master/README.md

Pass common Xvfb arguments with a '-' prefix as keyword arguments. For example, '-nolisten tcp' prevents Xvfb from listening on TCP connections.

```python
from xvfbwrapper import Xvfb

xvfb = Xvfb(nolisten="tcp")
xvfb.start() # Xvfb will be called with the `-nolisten tcp` argument
```

--------------------------------

### Specify Xvfb Display Number

Source: https://github.com/cgoldberg/xvfbwrapper/blob/master/README.md

Start Xvfb on a specific display number. The display will be stopped automatically if used as a context manager.

```python
from xvfbwrapper import Xvfb

xvfb = Xvfb(display=23)
xvfb.start() # Xvfb will start on display :23
```

--------------------------------

### Clone xvfbwrapper Repository

Source: https://github.com/cgoldberg/xvfbwrapper/blob/master/README.md

Instructions for cloning the xvfbwrapper project from GitHub. This is the first step in contributing to the project.

```bash
git clone https://github.com/<USERNAME>/xvfbwrapper.git
cd xvfbwrapper
```

--------------------------------

### Run xvfbwrapper Tests with Tox

Source: https://github.com/cgoldberg/xvfbwrapper/blob/master/README.md

Runs all tests, linting, and type checking across multiple supported Python environments using tox.

```bash
tox
```

--------------------------------

### Multithreaded Xvfb Execution

Source: https://github.com/cgoldberg/xvfbwrapper/blob/master/README.md

Demonstrates how to run multiple isolated Xvfb instances concurrently using separate environments. Ensure you use a copy of os.environ for isolation.

```python
import os

from xvfbwrapper import Xvfb

isolated_environment1 = os.environ.copy()
xvfb1 = Xvfb(environ=isolated_environment1)
xvfb1.start()

isolated_environment2 = os.environ.copy()
xvfb2 = Xvfb(environ=isolated_environment2)
xvfb2.start()

try:
    # launch stuff inside virtual displays here
finally:
    xvfb1.stop()
    xvfb2.stop()
```

--------------------------------

### Run xvfbwrapper Tests with Pytest

Source: https://github.com/cgoldberg/xvfbwrapper/blob/master/README.md

Executes all tests for xvfbwrapper using the pytest framework in the default Python environment.

```bash
pytest
```

--------------------------------

### Headless Selenium WebDriver Tests with Xvfb

Source: https://github.com/cgoldberg/xvfbwrapper/blob/master/README.md

Shows how to integrate xvfbwrapper with Selenium for running headless Chrome tests. It ensures X11 is used and manages the lifecycle of the virtual display and browser.

```python
import os
import unittest

from selenium import webdriver
from xvfbwrapper import Xvfb

# force X11 in case we are running on a Wayland system
os.environ["XDG_SESSION_TYPE"] = "x11"


class TestPage(unittest.TestCase):

    def setUp(self):
        xvfb = Xvfb()
        xvfb.start()
        self.driver = webdriver.Chrome()
        self.addCleanup(xvfb.stop)
        self.addCleanup(self.driver.quit)

    def test_selenium_homepage(self):
        self.driver.get("https://www.selenium.dev")
        self.assertIn("Selenium", self.driver.title)


if __name__ == "__main__":
    unittest.main()
```

--------------------------------

### Specify Xvfb Options with extra_args

Source: https://github.com/cgoldberg/xvfbwrapper/blob/master/README.md

Pass various types of Xvfb arguments, including unary, prefixed unary, and arguments with parameters, using the 'extra_args' sequence.

```python
from xvfbwrapper import Xvfb

xvfb = Xvfb(extra_args=("ttyxx", "-nocursor", "+extension", "RANDR"))
xvfb.start() # Xvfb will be called with the `ttyxx -nocursor +extension RANDR` arguments
```

--------------------------------

### Set XDG_SESSION_TYPE for Wayland Compatibility

Source: https://github.com/cgoldberg/xvfbwrapper/blob/master/README.md

Ensure GUI applications use the X11 backend in Wayland sessions by setting XDG_SESSION_TYPE=x11. This is useful when running Xvfb in a Wayland environment.

```python
from xvfbwrapper import Xvfb

xvfb = Xvfb(set_xdg_session_type=True)
xvfb.start()
```

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