The team tests if the newly added functionality works correctly and that the previously released functionality still works as expected.
Test Automation also gains importance due to short delivery timelines. Test Automation may prove effective in ensuring that everything that needs to be tested was covered.
It is not necessary that costly tools be purchased to automate testing. Test Automation can be achieved in a relatively cost effective way by utilizing the various open source tools or by creating in-house scripts. These scripts can run one or more test cases to exercise a unit of code and verify the results or to test several modules.
This would vary with the complexity of the Project and the experience of the Team
Typical bugs found when doing agile testing?
Although nothing is typical about any Agile Development Project and each project may have its own set of complexities, by the very nature of the paradigm bugs may be introduced in the system when a piece of code is modified/enhanced/changed by one or more Developers.
Whenever a piece of code is changed it is possible that bugs have been introduced to it or previously working code is now broken. New bugs/defects can be introduced at every change or old bugs/defects may be reopened.
Steps Taken to Effectively Test in Agile Development Methodology:
As a wise person once said there is no substitute to hard work.
The only way one can effectively test is by ensuring Sufficient Test Coverage and Testing Effort Automated or otherwise.
The challenge could be lack of documentation, but the advantage could be close communication between team members thereby resulting in greater clarity of thought and understanding of the system.
Each Time Code is changed Regression Testing is done. Test Coverage is ensured by having Automated Scripts and the right mix/combination of People executing the Test Cases.
Exploratory Testing may also be encouraged. Exploratory Tests are not pre-designed or pre-defined. The Tests are designed and executed immediately. Similarly ad hoc testing may also be encouraged. Ad-hoc testing is done based on the tester’s experience and skills.
While automated Test Cases will ensure that the Test Cases scripted are executed as defined, the team may not have enough time to design and script all the test cases.
Ensuring software test coverage
To ensure that delivered product meets the end user’s requirements it is important that sufficient testing is done and all scenarios are tested.
Sufficient Test Coverage in an Agile Development Scenario may be tricky but with close cooperation and the right team dynamics it may not be impossible.
The objectives of the Project should be clear to the entire team. Many teams advocate Test Driven Development. At every stage the Software is tested if it meets the Requirements. Every Requirement is translated to a Test Case and Software is validated/ verified. While the Processes and Documentation are not stressed upon sufficient steps are taken to ensure that the software is delivered as per the User Expectations. This implies that each Software delivery should be tested thoroughly before it is released.
The timelines being short requires that the person testing the software has sufficient knowledge about the system and its objectives
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Summary:
In this article we studied Software Testing Methods and its challenges for Agile Software Development.
More details about Agile Software Development Concepts can be found at http://agilemanifesto.org/principles.html
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