Wait for page to be loaded with HtmlUnitDriver - java

I have several tests that run with Selenium and HtmlUnitDriver. Sometimes when I run them and want to click on an element or read text, the elements can not be found. Every time a Exception is thrown I save the Code of the Page for debugging purposes. But when I check the Code, the element is there and when I rerun the test everything works fine.
My guess is that the page was not completely loaded when I try to access the element.
So I would like to wait until Selenium has finished loading the page before I try to access elements.
I fond two ways to achieve it:
Execute Javascript (e.g. window.initComplete) and wait for the result to be true. The problem: In Selenium I have to have an instance of JavascriptExecuter but HtmlUnitDriver is not derived from that class and I cannot switch to FirefoxDriver (which implements the JavascriptExecuter interface) because we are running the tests headless.
Wait for the last element on the page to load
The problem with this approach is that the page is based on our framework and if that changes and suddenly there are different elements on the bottom of the page I have to adapt every test.
Any suggestions on how to approach the problem?

You can create a custom ExpectedCondition:
public static ExpectedCondition<Boolean> waitForLoad() {
return new ExpectedCondition<Boolean>() {
#Override
public Boolean apply(WebDriver driver) {
return ((JavascriptExecutor) driver).executeScript("return document.readyState").equals("complete");
}
};
}

Related

Java selenium click override or create own

Hei. I have been creating automated tests with selenium, but I have ran into some issues with IE the click not working. (Seems like a common issue where the driver just freezes and it won't timeout or anything).
As a workaround I created a method which uses javascript executor to do the click instead.
public static void IEClick(WebElement element) {
JavascriptExecutor executor = (JavascriptExecutor) driver;
executor.executeScript("arguments[0].click();", element);
}
The issue I have is that I would have to rewrite all my tests in order to make them work on IE.
#Test
public void Simpletest(){
Frontpage.SearchBox.sendKeys("DeadPool");
Frontpage.GOButton.click();
Frontpage.FirstREsult.click();
}
Would have to be changed to
#Test
public void Simpletest(){
Frontpage.SearchBox.sendKeys("DeadPool");
IEClick(Frontpage.GOButton);
IEClick(Frontpage.FirstREsult);
}
This is a solution but this mean I would have to redo all my tests to handle this. Which seems a little too much. So I'm wondering is it possible to create my own click?
Desired solution
Frontpage.FirstREsult.MyClick();
Where in MyClick I have already handled all the cases with different browsers etc.So I could just search and replace the click with my own click.
1) At first you can get a browser name from capabilities and using js or native click depending on browser
Capabilities caps = ((RemoteWebDriver) driver).getCapabilities();
String browserName = caps.getBrowserName();
2) Also you can always use a js click. It's a very rare situation where you can need the native one

Having issue finding element Fluentlenium

I am writing some automated tests using Fluentlenium and PhantomJS. I am having trouble accessing the id "#title". The test I have written is as follows:
#Test
public void testCreateButton() {
startAppWithCallback(new F.Callback<TestBrowser>() {
public void invoke(TestBrowser browser) throws InterruptedException {
CalendarPage calendarPage = browser.createPage(CalendarPage.class);
calendarPage.withDefaultUrl(BASE_URL);
calendarPage.go();
calendarPage.selectCreateButton();
calendarPage.typeTitle("Java Fundamentals");
browser.await().atMost(3, TimeUnit.SECONDS);
}
});
}
The test is running, and seems to be able to select the Create button, which should then open up a modal window, but for some reason it is having trouble seeing the id on this modal. The error message that I get is as follows:
org.openqa.selenium.NoSuchElementException: No element is displayed or enabled. Can't set a new value.
Is there something I am not doing when it comes to accessing the id on the modal window? Any help at all would be much appreciated.
Usually modal windows take some time to attach to the DOM of the page you are accessing. Though you have added 3 seconds to wait for the element to appear/ attach to the DOM but the time is not sufficient. I would not recommend to increase the timeout but would recommend to wait until for the element to appear and then move forward. for e.g. you could do following thing to wait for an element to appear on the page instead of waiting statically:
FluentWaitMatcher matcher = page.await().atMost(, TimeUnit.SECONDS).until(findPattern);

While working with Selenium WebDriver and Java I am not able to use click() function of WebDriver (giving no exception)

I have set the following properties:-
Set environment variables JAVA_HOME,path,ANT_HOME,path (using JDK version --> jdk1.7.0_40)
In Eclipse set the system Library, added all needed jars and select all jars in Order and Export.
Install the Firefox Version 24 and used the Selenium jar(selenium-server-standalone-2.41.0).
Giving no error while running the Java application, also no exception while not able to click on particular element.
sendKeys(Keys.ENTER) is working fine, but instead I need to use click() method.
Also code is working fine on other systems, I think I am missing something.
click() method is not giving any valid response, it makes me feel like its only declared not defined. I have tried on different websites, on different elements and with different types(xpath, css selector, name, id) but nothing worked for me. I took focus on that element by webdriver and also by highlighting the element using javascript code, its showing that particular element is present. I have performed other operations like entering username after clicking on that element, its performing well. I have worked with different browsers, different webpages also maximize the window using selenium but no positive response.
Any help will appreciate.
Thanks in advance
Hi the snippet below worked fine for me
public static void main(String[]args){
WebDriver appDriver;
appDriver = new FirefoxDriver();
appDriver.get("https://web210.qa.drfirst.com/login.jsp");
WebElement loginButton = appDriver.findElement(By.className("btn"));
loginButton.click();
appDriver.switchTo().alert().accept();
appDriver.close();
}

The screen is not navigating even the click() method is executed successfully in mobile web app using selenium web driver

I was trying to click a button on my mobile web app, using selenium web driver. The button is located, the text over the button can be derived and even the click event is performing well. But the navigation doesn't occur.
I tried with Click() method, sendKeys() method and also with script executor. But couldn't process further on.
CODE:
public class TestWeb
{
WebDriver driver;
private Selenium selenium;
#Before
public void setUp() throws Exception {
driver = new IPhoneDriver();
driver.get("http://10.5.95.25/mobilebanking");
}
#Test
public void TC() throws Exception {
System.out.println("page 1");
Thread.sleep(5000);
WebElement editbtn1 = driver.findElement(By.id("ext-comp-1018"));
String s1 = editbtn1.getText();
System.out.println(s1);
editbtn1.click();
editbtn1.sendKeys(Keys.ENTER);
((JavascriptExecutor)driver).executeScript("arguments[0].click;", editbtn1);
System.out.println("ok");
}
#After
public void tearDown() throws Exception {
System.out.println("*******Execution Over***********");
}
}
I tried click, sendKeys and ScriptExecutor separately and also combined. It is executing without any error but the navigation doesn't occur.
Does anybody can help me with some other ways to perform click function on the button?
Ram
This may not be your issue but I noticed "ext-comp-" and guess you are using extjs.
I'm using GXT and while finding by id worked for many things, on some submit buttons it didn't.
I had to use firebug in firefox to locate the element and copy the xpath.
Then I could click the element by
driver.findElement(By.xpath("//div[#id='LOGIN_SUBMIT']/div/table/tbody/tr[2]/td[2]/div/div/table/tbody/tr/td/div")).click(); // worked
It was failing silently for me too. My submit button has the id of LOGIN_SUBMIT so I don't know why the following failed but ....
driver.findElement(By.id("LOGIN_SUBMIT")).click();//failed
Edit:
Here is an exact example (case 1 of 2):
WebDriverWait wait = new WebDriverWait(driver, 30);
wait.until(ExpectedConditions.elementToBeClickable(By.xpath("//div[#id='gwt-debug-LOGIN_SUBMIT']")));
//wait.until(ExpectedConditions.elementToBeClickable((By.id("gwt-debug-LOGIN_SUBMIT")))); <!-- id works as well
OK so the element is found. It will timeout and throw an exception if it is not.
Still, the following fails (under firefox, works with chrome) with no error and the page does not navigate.
driver.findElement(By.xpath("//div[#id='gwt-debug-LOGIN_SUBMIT']")).click();
//driver.findElement(By.id("gwt-debug-LOGIN_SUBMIT")).click(); <-- fails too
What I have to do is:
driver.findElement(By.xpath("//div[#id='gwt-debug-LOGIN_SUBMIT']/div/table/tbody/tr[2]/td[2]/div/div/table/tbody/tr/td/div")).click();
So my experience was that even if I found the element with xpath, clicking failed unless I used a complete xpath.
Here is another exact example (case 2 of 2):
I can find an element like so:
WebElement we = driver.findElement(By.xpath("//*[#id=\"text" + i + "\"]"));
I know I have found it because I can see the text via:
we.getText();
Still selecting by the path I found it fails.
//get outta town man the following fails
driver.findElement(By.xpath("//*[#id=\"text" + i + "\"]")).click();
In this case there is not more explicit xpath to try as in case 1
What I had to do was use css:
//bingo baby works fine
driver.findElement(By.cssSelector("div#text" + i + ".myChoices")).click();
Actually, I obtained the css path via firebug than shortened it.
//this is what I recieved
html.ext-strict body.ext-gecko div#x-auto-0.x-component div#x-auto-1.x-component div#x-auto-3..myBlank div#choicePanel1.myBlank div.x-box-inner div#text3.myChoices //text3 is the id of the element I wanted to select
Whether or not you can figure out your needed xpaths and css selectors, I don't know, but I believe I experienced exactly what you did.

How do you get selenium to recognize that a page loaded?

In certain unknown situations selenium does not detect that a page has loaded when using the open method. I am using the Java API. For example (This code will not produce this error. I don't know of an externally visible page that will.):
Selenium browser = new DefaultSelenium("localhost", 4444, "*firefox", "http://www.google.com");
browser.start();
browser.open("http://www.google.com/webhp?hl=en");
browser.type("q", "hello world");
When the error occurs, the call to 'open' times out, even though you can clearly see that the page has loaded successfully before the timeout occurs. Increasing the timeout does not help. The call to 'type' never occurs, no progress is made.
How do you get selenium to recognize that the page has loaded when this error occurs?
I faced this problem quite recently.
All JS-based solutions didn't quite fit ICEFaces 2.x + Selenium 2.x/Webdriver combination I have.
What I did and what worked for me is the following:
In the corner of the screen, there's connection activity indicator.
<ice:outputConnectionStatus id="connectStat"
showPopupOnDisconnect="true"/>
In my Java unit test, I wait until its 'idle' image comes back again:
private void waitForAjax() throws InterruptedException {
for (int second = 0;; second++) {
if (second >= 60) fail("timeout");
try {
if ("visibility: visible;".equals(
selenium.getAttribute("top_right_form:connectStat:connection-idle#style"))) {
break;
}
} catch (Exception e) {
}
Thread.sleep(1000);
}
}
You can disable rendering of this indicator in production build, if showing it at the page is unnecessary, or use empty 1x1 gifs as its images.
Works 100% (with popups, pushed messages etc.) and relieves you from the hell of specifying waitForElement(...) for each element separately.
Hope this helps someone.
Maybe this will help you....
Consider the following method is in page called Functions.java
public static void waitForPageLoaded(WebDriver driver) {
ExpectedCondition<Boolean> expectation = new
ExpectedCondition<Boolean>() {
public Boolean apply(WebDriver driver) {
return ((JavascriptExecutor)driver).executeScript("return document.readyState").equals("complete");
}
};
WebDriverWait wait = new WebDriverWait(driver,30);
try {
wait.until(expectation);
} catch(Throwable error) {
Assert.assertFalse(true, "Timeout waiting for Page Load Request to complete.");
}
}
And you can call this method into your function. Since it is a static method, you can directly call with the class name.
public class Test(){
WebDriver driver;
#Test
public void testing(){
driver = new FirefoxDriver();
driver.get("http://www.gmail.com");
Functions.waitForPageLoaded(driver);
}
}
When I do Selenium testing, I wait to see if a certain element is visible (waitForVisible), then I do my action. I usually try to use an element after the one I'm typing in.
Using 'openAndWait' in place of 'open' will do the trick.
From the website:
Many Actions can be called with the "AndWait" suffix, e.g. "clickAndWait". This suffix tells Selenium that the action will cause the browser to make a call to the server, and that Selenium should wait for a new page to load.
Enabling the 'multiWindow' feature solved the issue, though I am not clear why.
SeleniumServer(int port, boolean slowResources, boolean multiWindow)
SeleniumServer server = new SeleniumServer(4444, false, true);
Any clarification would be helpful.
I've run into similar issues when using Selenium to test an application with iFrames. Basically, it seemed that once the primary page (the page containing the iframes) was loaded, Selenium was unable to determine when the iframe content had finished loading.
From looking at the source for the link you're trying to load, it looks like there's some Javascript that's creating additional page elements once the page has loaded. I can't be sure, but it's possible that this is what's causing the problem since it seems similar to the situation that I've encountered above.
Do you get the same sort of errors loading a static page? (ie, something with straight html)
If you're unable to get a better answer, try the selenium forums, they're usually quite active and the Selenium devs do respond to good questions.
http://clearspace.openqa.org/community/selenium_remote_control
Also, if you haven't already tried it, add a call to browser.WaitForPageToLoad("15000") after the call to open. I've found that doing this after every page transition makes my tests a little more solid, even though it shouldn't technically be required. (When Selenium detects that the page actually has loaded, it continues, so the actual timeout variable isn't really a concern..
Not a perfect solution, but I am using this method
$t1 = time(); // current timestamp
$this->selenium->waitForPageToLoad(30);
$t2 = time();
if ($t2 - $t1 >= 28) {
// page was not loaded
}
So, it is kind of checking if the page was not loaded during the specified time, so it is not loaded.
another idea is to modify AJAX API (to add some text after AJAX actions).
After ajax action was finished, before return, set invisible field to TRUE, selenium will find it and read as green-light
in html:
<input type='hidden' id="greenlight">
in selenium
if(driver.findElement(By.id("greenlight")).getAttr("value").equals("TRUE")){
// do something after page loading
}
If you page has no AJAX, try to seek footer of page (I also use Junit fail(""), you may use System.err.println() instead):
element.click();
int timeout =120;
// one loop = 0.5 sec, co it will be one minute
WebElement myFooter = null;
for(int i=0; i<timeout; i++){
myFooter = driver.findElement(By.id("footer"));
if(myFooter!= null){
break;
}
else{
timeout--;
}
}
if(timeout==0 && myFooter == null){
fail("ERROR! PAGE TIMEOUT");
}

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