How to use Network class of org.openqa.selenium.devtools.idealized package

You can do this:

@ClassRule // the magic is done here
public static TestRule classWatchman = new TestWatcher() {
    @Override
    protected void starting(Description desc) {
        System.out.println(desc.testCount()); // insert actual logic here
    }
};

This watches whole class instead of every test. That means that it gives you the number of tests in a suite on the start of the suite. Then, every time you call BaseListener.getSuiteResult().addPassed(currentTest); or BaseListener.getSuiteResult().addFailed(currentTest); you can check whether you have already added the number of tests in a suite (meaning the suite is done).

Or, even better,

@ClassRule
public static TestRule classWatchman = new TestWatcher() {
    @Override
    protected void finished(Description desc) {
        System.out.println("Suite completed!"); // insert actual logic here
    }
};

If you have multiple classes containing tests, you can create a single AllMyTests class containing all of those! This AllMyTests class can be then run by JUnit. In this case, @ClassRule will behave as a @SuiteRule (which doesn't exist).

@RunWith(Suite.class)
@Suite.SuiteClasses({ First.class, Second.class, Third.class })
public class AllMyTests {
    // nothing to do
}

Try setting an implicit wait of maybe 10 seconds.

gmail.manage().timeouts().implicitlyWait(10, TimeUnit.SECONDS);

Or set an explicit wait. An explicit waits is code you define to wait for a certain condition to occur before proceeding further in the code. In your case, it is the visibility of the password input field. (Thanks to ainlolcat's comment)

WebDriverWait wait = new WebDriverWait(gmail, 10);
WebElement element = wait.until(
    ExpectedConditions.visibilityOfElementLocated(By.id("Passwd")));
gmail.findElement(By.id("Passwd")).sendKeys("xyz");

Explanation: The reason selenium can't find the element is because the id of the password input field is initially Passwd-hidden. After you click on the "Next" button, Google first verifies the email address entered and then shows the password input field (by changing the id from Passwd-hidden to Passwd). So, when the password field is still hidden (i.e. Google is still verifying the email id), your webdriver starts searching for the password input field with id Passwd which is still hidden. And hence, an exception is thrown.

Please have a look on this question. This might solve your problem.

How to download a csv file using PhantomJS

You can make AJAX call to download and encode your file, then you can return this content back.

You don't need to convert the whole array. Just call File's getAbsolutePath() method:

driver.findElement(By.id(id1)).sendKeys(listOfFiles[1].getAbsolutePath());

But if you do want to convert the whole array, here is the Java 8 way to do this (simplified by @RemigiusStalder):

String listOfPaths[] = Arrays.stream(listOfFiles).map(File::getAbsolutePath)
        .toArray(String[]::new);

for (String handle : driver.getWindowHandles()) {
    driver.switchTo().window(handle);
    System.out.println(String.format("handle: %s, url: %s", handle, driver.getWebDriver().getCurrentUrl()));
} 

Well, I would guess that presenceOfElementLocated will be slighty faster because it's just check elements presence on the page while the visibilityOfElementLocated has to check the presence and whether is element visible.

But I think it really doesn't matter from the performance perspective (what's the point if you save 0.001 second during this checking?), you better choose appropriate method depending on your use case.

• use presenceOfElementLocated when you don't care whether if element visible or not, you just need to know if it's on the page
• use visibilityOfElementLocated when you need to find element which should be also visible

Look at the documentation for more info.

First of all lets be clear about what a WebElement is.

A WebElement is a reference to an element in the DOM.

A StaleElementException is thrown when the element you were interacting is destroyed and then recreated. Most complex web pages these days will move things about on the fly as the user interacts with it and this requires elements in the DOM to be destroyed and recreated.

When this happens the reference to the element in the DOM that you previously had becomes stale and you are no longer able to use this reference to interact with the element in the DOM. When this happens you will need to refresh your reference, or in real world terms find the element again.

Because of the way that rules are set up, you can't have a rule that comes after @before or before @after. You can think of rules like shells that you put on the test method. The first shell to go on is @before/@after. Thereafter the @rules are applied.

A quick way to do what you want to do is to avoid @After altogether. A rule can be created so that it will take a screenshot if a method fails and then execute yours after the code. It isn't quite as pretty as @After, but it works. (also I implemented TestRule because MethodRule has been depreciated).

public class MortgageCalculatorTest  {
    @Before
    public void before(){
        System.out.println("I am before");
    }

    @BeforeClass
    public static void beforeclass(){
        System.out.println("I am beforeclass");
    }

    @Test
    public void test(){
        System.out.println("I am a Test");
    }

    @Test
    public void test2(){
        System.out.println("I am a Failed Test");
        fail();
    }

    @AfterClass
            public static  void afterclass(){
                System.out.println("I am afterclass");

    }

    @Rule
    public ExpensiveExternalResource ExpensiveExternalResource = new ExpensiveExternalResource();

    public static class ExpensiveExternalResource implements TestRule  {


      //  public ExpensiveExternalResource(){}


        public class ExpansiveExternalResourceStatement extends Statement{

            private Statement baseStatement;

            public ExpansiveExternalResourceStatement(Statement b){
                baseStatement = b;
            }

            @Override
            public void evaluate() throws Throwable {
                try{
                    baseStatement.evaluate();
                }catch(Error e){
                    System.out.println("I take a Screenshot");
                    throw e;   
                }finally{
                    after();
                }
            }

            //Put your after code in this method!
            public void after(){
                System.out.println("I am after");
            }
        }

        public Statement apply(Statement base, Description description) {
            return new ExpansiveExternalResourceStatement(base);

        }


    }
}

All the work of the rule is done in a statement. A org.junit.runners.model.Statement is a class that represents a bundle of code. So here the apply method receives the bundle of code that you are putting a shell around. Apply returns your statement that executes the bundle of code that you gave it and surrounds it with a try/catch statement to catch the method failures.

The output for this method is:

I am beforeclass
I am before
I am a Test
I am after
I am before
I am a Failed Test
I take a Screenshot
I am after
I am afterclass

Hope this helps!

Given you already found your element and you want to check for a certain class inside the class-attribute:

public boolean hasClass(WebElement element) {
    String classes = element.getAttribute("class");
    for (String c : classes.split(" ")) {
        if (c.equals(theClassYouAreSearching)) {
            return true;
        }
    }
    
    return false;
}

#EDIT As @aurelius rightly pointed out, there is an even simpler way (that doesn't work very well):

public boolean elementHasClass(WebElement element, String active) {
    return element.getAttribute("class").contains(active);
}

This approach looks simpler but has one big caveat:

As pointed out by @JuanMendes you will run into problems if the class-name you're searching for is a substring of other class-names:

for example class="test-a test-b", searching for class.contains("test") will return true but it should be false

#EDIT 2 Try combining the two code snippets:

public boolean elementHasClass(WebElement element, String active) {
    return Arrays.asList(element.getAttribute("class").split(" ")).contains(active);
}

That should fix your caveat.