How to do Synchronization in Selenium Web Driver

Introduction to selenium web driver

Selenium web driver is an API that allows us to create automated tests on web applications. It obtains programming languages like Java, C#, Python, etc to build selenium test scripts. It supports all prevalent web browsers. The tool is pre-owned to automate the test tool used to automate web applications. It upholds many browsers such as Firefox, Chrome, IE, and Safari. Nonetheless, by adopting the Selenium WebDriver, we can automate testing for web applications only. It does not qualify for window-based applications. Selenium Webdriver is platform-independent because of the clone code that can be used on contrasting Operating Systems like Microsoft Windows, Apple OS, and Linux. It is one of the factors of the selenium family, which also comprises Selenium IDE, Selenium Client API, Selenium Remote Control, and Selenium Grid.

What is synchronization?

It is a process of coordinating two or more processes in time. In test automation, there will be two peripherals such as the application under test and the test automation tool. One and the other of them will have stated speeds and the test scripts should be written in a way such that both these peripherals will work at the same speed. This will help to escape the “Element Not Found” error which in different circumstances will dominate more time to discharge.

Why synchronization?

During the test execution test tool provides instructions gradually with the same speed but AUT takes less time for a few steps execution and further time for a few steps execution, in the procedure to keep them in sync then synchronization is needed.

Also Read: Common Challenges In Selenium

When synchronization is essential?

Whenever any tread takes more than synchronization time for execution there synchronization is desired.

How to synchronize AUT and Test tool-

Synchronization is classified into two categories.

1. Unconditional synchronization
2. Conditional synchronization

Unconditional synchronization-

Unconditional synchronization specifies the timeout value alone and composes a tool to continue expedite only when the specified time is expired.

Conditional synchronization-

Through using conditional synchronization we can determine timeout continuation onward with some craved desired conditions to verify and then lob an error if nothing appears. In conditional synchronization, the automation tool waits only for the required time.

How to determine the synchronization problem-

We can analyze synchronization issues by running dry runs. Synchronization can be adequately managed by implicit and explicit waits.

Categories of Conditional Synchronization:

1. Implicit Wait
2. Explicit Wait

Implicit Wait: Implicit waits are used to implement an evade waiting time (say 30 seconds) between each ensuing test step across the entire test script. Thus, the consequent test step would only execute when the 30 seconds have transpired after executing the earlier test step.

Explicit Wait: Explicit waits are passed on to freeze the execution just before the time a distinct case is met or the peak time has expired. Contradictory to Implicit waits, Explicit waits are practiced for a distinct occurrence only.

Also Read: The Significance of WebElement In Selenium

Conclusion:

The best way of adopting Selenium Synchronization is by bringing together Implicit & Explicit Waits in the code. According to my understanding, Implicit and Explicit is the most generally used, make Automation evenly.

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