Selenium: How to make the web driver to wait for page to refresh before executing another test

Question

I am writing Test Cases using Selenium web Driver in TestNG and I have a scenario where I am running multiple tests sequentially (refer below)

@Test(priority         


        

Answer 1

If you are waiting for element to present then

In selenium rc we used to do this using selenium.WaitForCondition("selenium.isElementPresent(\"fContent\")", "desiredTimeoutInMilisec")

In web driver U can achieve the same thing using this

WebDriverWait myWait = new WebDriverWait(webDriver, 45);
ExpectedCondition<Boolean> conditionToCheck = new ExpectedCondition<Boolean>()
{
    @Override
    public Boolean apply(WebDriver input) {
        return (input.findElements(By.id("fContent")).size() > 0);
    }
};
myWait.until(conditionToCheck);

This way you can wait for your element to be present before executing your test2.

UPDATED :

If you are waiting for page to load then in web driver you can use this code:

public void waitForPageLoaded(WebDriver driver)
{
    ExpectedCondition<Boolean> expectation = new
ExpectedCondition<Boolean>() 
    {
        public Boolean apply(WebDriver driver)
        {
            return ((JavascriptExecutor)driver).executeScript("return document.readyState").equals("complete");
        }
    };
    Wait<WebDriver> wait = new WebDriverWait(driver,30);
    try
    {
        wait.until(expectation);
    }
    catch(Throwable error)
    {
        assertFalse("Timeout waiting for Page Load Request to complete.",true);
    }
}

Answer 2

If you could trigger a URL change this would work:

WebDriverWait wait = new WebDriverWait(yourDriver, TimeSpan.FromSeconds(5));
wait.Until(ExpectedConditions.UrlContains("/url-fragment"));

Answer 3

Here is better and tested version of WaitForPageLoad implementation in C#.Net

public void WaitForPageLoad(int maxWaitTimeInSeconds) {
    string state = string.Empty;
    try {
        WebDriverWait wait = new WebDriverWait(_driver, TimeSpan.FromSeconds(maxWaitTimeInSeconds));

        //Checks every 500 ms whether predicate returns true if returns exit otherwise keep trying till it returns ture
        wait.Until(d = > {

            try {
                state = ((IJavaScriptExecutor) _driver).ExecuteScript(@"return document.readyState").ToString();
            } catch (InvalidOperationException) {
                //Ignore
            } catch (NoSuchWindowException) {
                //when popup is closed, switch to last windows
                _driver.SwitchTo().Window(_driver.WindowHandles.Last());
            }
            //In IE7 there are chances we may get state as loaded instead of complete
            return (state.Equals("complete", StringComparison.InvariantCultureIgnoreCase) || state.Equals("loaded", StringComparison.InvariantCultureIgnoreCase));

        });
    } catch (TimeoutException) {
        //sometimes Page remains in Interactive mode and never becomes Complete, then we can still try to access the controls
        if (!state.Equals("interactive", StringComparison.InvariantCultureIgnoreCase))
            throw;
    } catch (NullReferenceException) {
        //sometimes Page remains in Interactive mode and never becomes Complete, then we can still try to access the controls
        if (!state.Equals("interactive", StringComparison.InvariantCultureIgnoreCase))
            throw;
    } catch (WebDriverException) {
        if (_driver.WindowHandles.Count == 1) {
            _driver.SwitchTo().Window(_driver.WindowHandles[0]);
        }
        state = ((IJavaScriptExecutor) _driver).ExecuteScript(@"return document.readyState").ToString();
        if (!(state.Equals("complete", StringComparison.InvariantCultureIgnoreCase) || state.Equals("loaded", StringComparison.InvariantCultureIgnoreCase)))
            throw;
    }
}