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Why Software Testing Experts use Test Execution Tools for Automation?

What are Test Execution Tools?

– Test execution tools are known by different names such as test running tools, test automation tools, capture and replay tools, test play back tools and so on.
– These tools are widely used for automating the testing processes which is not less than a nightmare for the developers.
– They have got the capability of executing the same test scripts a number of times.
– Also, the execution is reliable and faster so that you don’t lose your edge.
– Humans have a tendency to make mistakes but software will do exactly what it has been instructed to do therefore reducing the probability of introducing errors in the testing process.
– The time taken for the execution of tests is greatly reduced when it is required to repeat a set of tests for a number of times.

There are 3 basic principles up on which all the test automation tools are based:
1. Capture: It means recording all of the manual actions of the tester and responses of the software system or application in to a test script.
2. Control points or check points: These points are incorporated in to the test script during the capture process by the tester.
3. Playback: The test script is re – executed by the testing tool automatically.

– Test execution tools are available for character – based interfaces, GUI i.e., graphical user interfaces etc.
– For the automation of the GUI testing, the movements of the mouse and clicks are captured and simulated for a number of users.
– It also involves recognizing various window elements such as buttons, controls, and fields and so on.
– If a script is captured once, no doubt it can be executed at any desired time over and over again.
– In some cases, the software system under test is found to be behaving differently from the expected behavior at the check points, in such cases the test execution tool reports a failure and the details of the failure are stored in the logs.

Why Software Testing Experts use Test Execution Tools for Automation ?

– Test scripts cannot be captured in any language rather a specific scripting language is required for this purpose.
– However, nowadays certain execution tools which offer scripting in languages such as visual basic or C, thus allowing the tester to edit those scripts.
– This editing option allows the tester to add things such as control points, forgotten operations, changed values and so on.
– Various case studies have shown that a script developed from scratch proves to be more maintainable if systematic development principles are deployed.
– This increases the usage of the test execution tools for coding the scripts rather than recording them.

Advantages of Test Execution Tools

Test execution tools are used by almost all the software experts because of their so many advantages.
– These tools prove to be quite necessary wherever the build and smoke tests are involved.
– There might be situations where you might be short of time, in such cases you can set the tests to run over night and you can have the results the very next morning.
– The test execution tools come very handy especially in the case of iterative and incremental development processes which call for many regression tests.
– To use the test scripts effectively, a good configuration management is required so that tracking of the versions of objects, data, scripts etc. can be done.
– This advantage though does not sound big enough but adds up later to your benefit.

Pitfalls & Disadvantages of Test Execution Tools

However, there are certain pitfalls of these test execution tools.
– They prove to be costly when compared to manual methods and also the maintenance is costly.
– During the course of development, the code itself and its requirements as well as specifications keep on changing.
– Therefore, this needs to be considered if the scripts are to be maintained regularly.

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