Test automation services are used for more than one reason- to deliver faster and relevant software, without issues. We will explore the various benefits of test automation and how it helps in delivering faster and immaculate software.
According to Gartner’s World Quality Report 2016-2017, some of the key benefits of test automation services include the following:
- Cost-related aspects
Thus, test automation can do the following:
- Reduces shipping time: This can be done by validating builds faster.
- Reduces efforts for testing: It converts all the tests to automated ones, thus decreasing the time needed for testing.
- Reduces costs. Since it helps in automation, it reduces labour costs. Moreover, it detects bugs sooner at the developmental stage, which again helps in reducing the amendment prices.
- It makes continuous integration possible, apart from continuous delivery
- It helps in making regression testing banal since automated regression testing can run alongside other tests
- It avoids human error since the tests are automated
In a research done by NASA, it has been found that the cost of fixing bugs grows, depending on the stage it has been detected in. Evidently, if it has been detected at the developmental stage, the costs are far lesser. The fix cost also depends on the stage when the bug has been introduced. In other words, bugs that have been detected later or introduced earlier have higher costs. It is, therefore recommended that testers be involved in the earlier stages of the development of the software. This can be done by means of Shift Left Testing practices, which helps in reducing overall bug fixing costs.
Test automation is considered most useful since it can be introduced at the earlier coding stages, in the form of unit tests. Automation can also be used in implementing component, integration, functional, and UI tests, thus covering the entire testing spectrum.
Experts believe that special relevance should be given to “service tests” for validating the business logic.
Types of test and automation frameworks
- Service Tests: These tests ensure that the system is built in the right way, thus validating the business logic.
- Unit Tests: Easier and faster to implement and maintain, they are the best way to start automation with. This type of test can be evaluated if the system is built correctly. It also helps in assessing code coverage. It needs to be said that each language or platform has its own preferred unit testing framework, which includes JUnit for Java or Nunit for C#.
- Component Tests and Integration Tests: This helps in detecting whether the individual components of a system are working together and are integrated properly. They are relatively easy to implement and provide the means to prevent errors that are harder to track further ahead.
- Acceptance Tests: This can be integrated at the initial stages as a way to ensure that the specifications are met at the earlier stages. Cucumber or BDD tools eases the writing of automated acceptance tests. In fact, these tests differentiate the test specifications from their implementations.
- UI Tests: These tests validate the business’ or user’s demands simulating real usage. Typical examples of these make use of Selenium as web automation frameworks.
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