How to Test Blur - Firefox Selenium driver?

Question

I'm using selenium 2.24 Firefox Driver to test an input box's blur event. Currently, after I sendKeys to an input box, I let selenium to click another area which triggers the input box blur.

However, I think it is not a good way, anyone knows a better way to test this?

Many thanks.

I don't remember if this worked for the onblur event but try webElement.sendKeys(Keys.RETURN); — Maciek, Sep 09 '12 at 06:38
If you are using C#, then you can insert a `tab` char at the end of the string to send to the element: `ele.SendKeys("my string\t")` — Ray Cheng, Sep 23 '16 at 22:50
someelement.sendKeys("\t") also works in Java, shortest solution — cocorossello, Oct 01 '16 at 22:50

score 7 · Answer 1 · answered Dec 03 '14 at 17:26

Some elements do not have a suitable discriminator for testing purposes (e.g. an id or another CSS selector that you'd like to be bound to in your tests).

Fortunately, the notion of an activeElement exisits. So, if the element's blur functionality is what you wish to test, a native javascript way (not reliant upon jQuery or similar) to test this is:

driver.ExecuteScript("!!document.activeElement ? document.activeElement.blur() : 0");

score 6 · Answer 2 · edited Feb 02 '20 at 21:13

6

The selenium WebDriver does not properly trigger events like blur. You can, however, manually trigger them. Assuming that you're using jquery:

firefoxWebDriver.executeScript("$('#yourID').blur()");

Or without jquery:

firefoxWebDriver.executeScript("document.querySelector('#yourID').blur()");

edited Feb 02 '20 at 21:13

Henry Woody

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answered Dec 14 '12 at 21:19

Aurand

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This method also works for HtmlUnitDriver, ChromeDriver, SafariDriver, and InternetExplorerDriver. – Merkidemis Mar 07 '13 at 15:15

score 5 · Accepted Answer · edited May 23 '17 at 12:07

5

I've made a lil investigation. I found out that fire event is not supported in selenium 2.0. See details. So this piece of code worked for me:

 driver.get("http://www.onliner.by/");

        String cssSelctr= "div.b-top-search-box input[id=\"g-search-input\"]";
        WebElement testElement=driver.findElement(By.cssSelector(cssSelctr));
        testElement.sendKeys("fvsdfs");

        JavascriptExecutor js = (JavascriptExecutor) driver;
        StringBuilder stringBuilder = new StringBuilder();
        stringBuilder.append("var x = $(\'"+cssSelctr+"\');");
        stringBuilder.append("x.blur();");
        js.executeScript(stringBuilder.toString());

Hope now this helps you)

edited May 23 '17 at 12:07

Community

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answered Sep 09 '12 at 21:38

eugene.polschikov

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unfortunately using the method will lead to exception: ........... at java.lang.reflect.Constructor.newInstance(Constructor.java:513) at org.openqa.selenium.remote.ErrorHandler.createThrowable(ErrorHandler.java:188) at org.openqa.selenium.remote.ErrorHandler.throwIfResponseFailed(ErrorHandler.java:145) at org.openqa.selenium.remote.RemoteWebDriver.execute(RemoteWebDriver.java:472) at org.openqa.selenium.remote.RemoteWebDriver.executeScript(RemoteWebDriver.java:381) at org.openqa.selenium.internal.seleniumemulation.JavascriptLibrary.callEmbeddedHtmlUtils(JavascriptLibrary.java:82) – Mike Sep 10 '12 at 13:47

score 1 · Answer 4 · edited Nov 21 '16 at 11:01

Thanks eugene.polschikov. I had to change the function to call triggerHandler to make it work for me. See the following - just replace "element-id" with the id of your element.

JavascriptExecutor jsexec = (JavascriptExecutor) driver;
StringBuilder stringBuilder = new StringBuilder();
stringBuilder.append("var x = $('" + element-id + "');");
stringBuilder.append("x.triggerHandler('blur');");
jsexec.executeScript(stringBuilder.toString());

Hope it helps.

score 0 · Answer 5 · answered Aug 22 '14 at 06:44

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Replace "elementId" with relevant element ID. It works fine for me. "driver" is your Selenium driver

JavascriptExecutor jsexec = (JavascriptExecutor) driver; jsexec.executeScript("document.getElementById('" + elementId +"').onblur();");

answered Aug 22 '14 at 06:44

Chamiz

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How to Test Blur - Firefox Selenium driver?

5 Answers5