Monday November 28, 2011
Automation testing is a process in which manual testing steps are mimicked by a script that can be run automatically on a system to test its correctness. An automation testing framework defines a set of automation testing guidelines which, when followed can increase the overall productivity and produce better results apart from saving effort and time from the testing perspective.
There are many automation testing frameworks available to choose from.
The record and playback automation is the simplest of frameworks where the tester manually records each and every test step such as navigation, user inputs and checkpoints that are to be performed in order to execute a test case. There is no coding involved in this approach, thus simplifying the overall process. Once the recording is over, the tester can playback the script that will automatically perform the testing.
Experience the Record & Playback Feature of the automation testing tool.
This approach has larger test coverage as compared to the record and playback method. In this approach, each test case is viewed as a function call to which data is fed from an external source. In the data-driven automation framework, test data is stored in a separate external file thuseliminating the hard coding of test data into test scripts. Thus, it is possible to run the same test case with different sets of test data.
This approach is also known as table driven testing framework, in which data tables and keywords are to be developed (independent of testing automation tool) for the test case. Each test script is viewed as a keyword prompted action and the test data directs the testing here. Thus when the automated test case is run, the test data is read which points to the corresponding keyword and then finally the relevant script is called/executed.
This approach is by far the best of approaches since it solves most of the problems encountered while using any of the above-mentioned frameworks. The tester writes test scripts for classes of the individual UI page under specific window/page. Instructions are provided through test data, which recognizes the object on which action has to be taken which subsequently calls a script for the specific object.
As in life, one size does not fit all. Therefore, the test manager needs to decide which testing framework is most suitable for the application to be tested. A hybrid approach may be considered.
As the name suggests, a sensible combination of two or more automation testing frameworks can be adapted to obtain the best results. Depending upon the application to be tested, the test data pool available and consistency of the application, the test team may chose to use more than one of the above frameworks to automate their testing processes.
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