added more options

Author: DavertMik

src/Codeception/Module/WebDriver.php

@@ -50,19 +50,66 @@
 
 /**
  * Run tests in real browsers using the W3C [WebDriver protocol](https://www.w3.org/TR/webdriver/).
+ * There are multiple ways of running browser tests using WebDriver:
  *
- * ## Local Testing in Chrome and/or Firefox
+ * ## Selenium (Recommended)
  *
- * To run tests in a real browser you need:
- * * The browser itself: Chrome/Chromium and/or Firefox
- * * The appropriate driver:
- *     * [ChromeDriver](https://sites.google.com/a/chromium.org/chromedriver/getting-started) for Chrome/Chromium
- *     * [GeckoDriver](https://github.com/mozilla/geckodriver) for Firefox
- *   If you want to use both Chrome and Firefox, consider setting up a dedicated [Codeception environment](https://codeception.com/docs/07-AdvancedUsage#Environments) for each.
- * * Optional: Selenium Standalone Server (see below) 
+ * * Java is required
+ * * NodeJS is required
+ * 
+ * The fastest way to get started is to [Install and launch Selenium using selenium-standalone NodeJS package](https://www.npmjs.com/package/selenium-standalone).
+ * 
+ * Launch selenium standalone in separate console window:
+ * 
+ * ```
+ * selenium-standalone start
+ * ```
  *
- * ### ChromeDriver
+ * Update configuration in `acceptance.suite.yml`:
+ *
+ * ```yaml
+ * modules:
+ *    enabled:
+ *       - WebDriver:
+ *          url: 'http://localhost/'
+ *          browser: chrome # 'chrome' or 'firefox'
+ * ```
+ * 
+ * ## Headless Chrome Browser
+ * 
+ * To enable headless mode (launch tests without showing a window) for Chrome browser using Selenium use this config in `acceptance.suite.yml`:
+ * 
+ * ```yaml
+ * modules:
+ *    enabled:
+ *       - WebDriver:
+ *          url: 'http://localhost/'
+ *          browser: chrome
+ *            capabilities:
+ *              chromeOptions:
+ *                args: ["--headless", "--disable-gpu"]
+ * ```
+ * 
+ * ## Headless Selenium in Docker
+ *
+ * Docker can ship Selenium Server with all its dependencies and browsers inside a single container.
+ * Running tests inside Docker is as easy as pulling [official selenium image](https://github.com/SeleniumHQ/docker-selenium) and starting a container with Chrome:
  *
+ * ```
+ * docker run --net=host selenium/standalone-chrome
+ * ```
+ *
+ * By using `--net=host` allow Selenium to access local websites.
+ *
+ * ## Local Chrome and/or Firefox
+ *
+ * Tests can be executed directly throgh ChromeDriver or GeckoDriver (for Firefox). Consider using this option if you don't plan to use Selenium.
+ * 
+ * ### ChromeDriver
+ * 
+ * * Download and install [ChromeDriver](https://sites.google.com/chromium.org/driver/downloads?authuser=0)
+ * * Launch ChromeDriver in a separate console window: `chromedriver --url-base=/wd/hub`.
+ * 
  * Configuration in `acceptance.suite.yml`:
  *
  * ```yaml
@@ -81,11 +128,12 @@
  * ```
  * See here for additional [Chrome options](https://sites.google.com/a/chromium.org/chromedriver/capabilities)
  *
- * Before running the tests, you need to start ChromeDriver in a separate console window: `chromedriver --url-base=/wd/hub`.
- * Or you can enable the [RunProcess extension](https://codeception.com/extensions#RunProcess) to start/stop ChromeDriver automatically.
  *
  * ### GeckoDriver
  * 
+ * * [GeckoDriver])(https://github.com/mozilla/geckodriver/releases) must be installed 
+ * * Start GeckoDriver in a separate console window: `geckodriver`.
+ *  
  * Configuration in `acceptance.suite.yml`:
  *
  * ```yaml
@@ -103,41 +151,7 @@
  *                      intl.accept_languages: "de-AT" # Set HTTP-Header `Accept-Language: de-AT` for requests
  * ```
  * See here for [Firefox capabilities](https://developer.mozilla.org/en-US/docs/Web/WebDriver/Capabilities#List_of_capabilities)
- *
- * Before running the tests, you need to start GeckoDriver in a separate console window: `geckodriver`.
- * Or you can enable the [RunProcess extension](https://codeception.com/extensions#RunProcess) to start/stop GeckoDriver automatically.
- *
- * ### Selenium
- *
- * On top of ChromeDriver/GeckoDriver you may also use Selenium Standalone Server for more options.
- *
- * 1. Install [Java](https://www.java.com/)
- * 2. Download [Selenium Standalone Server](http://docs.seleniumhq.org/download/)
- * 3. Configuration in `acceptance.suite.yml`:
- *
- * ```yaml
- * modules:
- *    enabled:
- *       - WebDriver:
- *          url: 'http://localhost/'
- *          browser: chrome # 'chrome' or 'firefox'
- * ```
- * For additional `capabilities`, see above. Selenium 3.8 renamed the `chromeOptions` capability to `goog:chromeOptions`.
- *
- * Before running the tests, you need to start GeckoDriver in a separate console window: `java -jar "/path/to/selenium-server-standalone-xxx.jar"`
- * To locate the ChromeDriver binary use `-Dwebdriver.chrome.driver=./chromedriver`, for GeckoDriver use `-Dwebdriver.gecko.driver=./geckodriver`.
- *
- * ### Headless Selenium in Docker
- *
- * Docker can ship Selenium Server with all its dependencies and browsers inside a single container.
- * Running tests inside Docker is as easy as pulling [official selenium image](https://github.com/SeleniumHQ/docker-selenium) and starting a container with Chrome:
- *
- * ```
- * docker run --net=host selenium/standalone-chrome
- * ```
- *
- * By using `--net=host` we allow selenium to access local websites.
- *
+ * 
  * ## Cloud Testing
  *
  * Cloud Testing services can run your WebDriver tests in the cloud.
@@ -193,20 +207,20 @@
  *
  * ```yaml
  *    modules:
-   enabled:
-	  - WebDriver:
-		 url: http://mysite.com
-		 host: '<username>:<access key>@hub.lambdatest.com'
-		 build: <your build name>
-		 name: <your test name>
-		 port: 80
-		 browser: chrome
-		 capabilities:
-			 os: Windows
-			 os_version: 10
-			 browser_version: 86
-			 resolution: 1366x768
-			 tunnel: true # for local testing
+ *  enabled:
+ *    - WebDriver:
+ *       url: http://mysite.com
+ *       host: '<username>:<access key>@hub.lambdatest.com'
+ *       build: <your build name>
+ *       name: <your test name>
+ *       port: 80
+ *       browser: chrome
+ *       capabilities:
+ *           os: Windows
+ *           os_version: 10
+ *           browser_version: 86
+ *           resolution: 1366x768
+ *           tunnel: true # for local testing
  * ```
  *
  * ### TestingBot