✔ How To Write Implicit Wait (A
Implicit Wait is part of Selenium’s Wait Method Category. The purpose is to determine a wait time for searching a dynamic WebElement. If the element is not found then an exception is thrown.
In this 4-minute video, I will demo Implicit Wait using test application http://the-internet.herokuapp.com by Dave Haeffner. Here’s a list of the other Selenium Wait Methods:
1. Page Load Timeout
2. Explicit Wait
3. Fluent Wait
4. Set Script Timeout
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Next is Implicit Wait.
Let’s walkthrough this Test Script for an AJAX web page. AJAX stands for Asynchronous JavaScript and XML. First, we load the web page which is Welcome To The Internet. This web page is Powered by Elemental Selenium where you get an email once a week to use Selenium like a Pro by Dave Haeffner.
Next, we are going to click the Dynamic Loading hyperlink. After clicking Dynamic Loading, the next step is to click Example 2. The last step is to click the Start button. Do you see how we are waiting for the dynamic element to load?
Finally, in our Test Script, we are going to find Hello World, get the text of Hello World, then print Hello World. Let’s run our test.
Uh oh – NoSuchElementException. Unable to locate element. Which element? The string Hello World. Our Test Script executed so fast that it did not wait for the next step which is find Hello World. That’s why Selenium provides Wait Methods so our execution can pause between these type of statements. If not, our Test Script will fail every time.
Let’s use Implicit Wait. driver.manage().timeouts().implicitlyWait(). The description states Specifies the amount of time the driver should wait when searching for an element if it is not immediately present. This means Selenium will for all instances of driver. Enter 5 and TimeUnit is Seconds. Selenium will wait up to 5 seconds.
Let’s Run. Now, we see Hello World! and Pass for our Test Script.
Implicit Wait would have waited for Lines 44, 45, 46, and 48 because they have a driver instance. If the element was not found for those lines then an exception would have been thrown. That’s it for Implicit Wait.
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