How to use isSupportingCdp method of org.openqa.selenium.chrome.ChromeDriverInfo class

I would recommend you NOT to automate file download using selenium. It's a trap you don't want to fall for. File download works differently in different browsers. People will recommend using AutoIT, but it only works for windows, so cross platform testing is not possible. Since you use Java bindings, you could use the Robot class, to move your mouse pointer to a certain location on the window and send a native click. In my experience this solution is really flaky. You don't know the exact location where you must click and with Robot you are blindly clicking on things. To add to this, when you are running tests on remote machine using selenium grid, things get even more difficult.

So how do you download the file? Just get the underlying link to download the file available in your DOM and fire a GET request. Download the content if you want to validate the file. If you don't want to validate the content, just response code is fine. Here is a fantastic blog with Java examples on how to download files in the background using http requests and detailed explanation on why downloading files using selenium is a bad idea.

It is possible to wait for one of two elements in the page using ExpectedConditions.or():

WebDriverWait wait = new WebDriverWait(driver, 10);
wait.until(ExpectedConditions.or(
    ExpectedConditions.elementToBeClickable(By.id("idNumber1")),
    ExpectedConditions.elementToBeClickable(By.id("idNumber2"))
)); 

You can also do an OR with a CSS selector using a comma ,:

wait.until(ExpectedConditions.elementToBeClickable(By.cssSelector("#idNumber1, #idNumber2"));

I've struggled with the same problem over an hour and finally @kenorb's solution rescued me. To be short you need to add a browser extension that does the authentication for you (since Selenium itself can't do that!).

Here is how it works for Chrome and Python:

1. Create a zip file proxy.zip containing two files:

background.js

var config = {
    mode: "fixed_servers",
    rules: {
      singleProxy: {
        scheme: "http",
        host: "YOU_PROXY_ADDRESS",
        port: parseInt(YOUR_PROXY_PORT)
      },
      bypassList: ["foobar.com"]
    }
  };

chrome.proxy.settings.set({value: config, scope: "regular"}, function() {});

function callbackFn(details) {
    return {
        authCredentials: {
            username: "YOUR_PROXY_USERNAME",
            password: "YOUR_PROXY_PASSWORD"
        }
    };
}

chrome.webRequest.onAuthRequired.addListener(
        callbackFn,
        {urls: ["<all_urls>"]},
        ['blocking']
);

Don't forget to replace YOUR_PROXY_* to your settings.

manifest.json

{
    "version": "1.0.0",
    "manifest_version": 2,
    "name": "Chrome Proxy",
    "permissions": [
        "proxy",
        "tabs",
        "unlimitedStorage",
        "storage",
        "<all_urls>",
        "webRequest",
        "webRequestBlocking"
    ],
    "background": {
        "scripts": ["background.js"]
    },
    "minimum_chrome_version":"22.0.0"
}

2. Add the created proxy.zip as an extension

   from selenium import webdriver
   from selenium.webdriver.chrome.options import Options
   
   chrome_options = Options()
   chrome_options.add_extension("proxy.zip")
   
   driver = webdriver.Chrome(executable_path='chromedriver.exe', chrome_options=chrome_options)
   driver.get("http://google.com")
   driver.close()
   

That's it. For me that worked like a charm. If you need to create proxy.zip dynamically or need PHP example then go to the original post

 if (attribute.equals(null)) {
    return true;
  }`

If attribute is null then .equals call will lead to NPE. Try with attribute == null.

From a WebElement you can use the getAttribute method like this:

element.getAttribute("class")

You can locate an element that loads after the initial page loads and then make Selenium wait until that element is found.

WebDriverWait wait = new WebDriverWait(driver, 10);
WebElement element = wait.until(ExpectedConditions.visibilityOfElementLocated(By.id("ID")));

Have you tried setSize() method from WebDriver.Window? Here is the documentation.

// untested Java code, only provides the logic
// please debug and refer to the documentation

import org.openqa.selenium.Dimension;

WebDriver driver = new PhantomJSDriver();

driver.manage().window().setSize(new Dimension(1920, 1080));
// or driver.manage().window().maximize();

driver.get("http://stackoverflow.com/questions/21743350/how-to-set-screen-window-size-when-using-ghostdriver");

this below code works for me in Selenium 3 and chrome version 58.

    WebDriver driver = new ChromeDriver();
    driver.get("http://yahoo.com");  
    ((JavascriptExecutor)driver).executeScript("window.open()");
    ArrayList<String> tabs = new ArrayList<String>(driver.getWindowHandles());
    driver.switchTo().window(tabs.get(1));
    driver.get("http://google.com");

Put SharedDriver in the same package as RunCukesIT, i.e. com.tests.

When using the JUnit runner, the glue becomes the unit test package (here com.tests), and this is where cucumber-jvm will “scan” the classes for annotations.