The Benefits of Automated Testing
It cannot be denied how automated test tools have been becoming increasingly popular these days. This is exceptionally true because the world of technology finds itself running at quite the fast pace. One week a company is releasing one brand with some new features. Immediately next week another company is releasing their new brand in the market with some more advanced features. At this fast a pace, it definitely comes as a must for software developers and engineers to find ways and means to develop better and more innovative specs and features. This just cannot be done without the help of automated tools.
These tools are used to make testing of software more convenient and faster. Now, the manual counterparts of these tests have been in the industry for a long time running now. Back in the day, mobile phone brands, for instance, would have their software developers and engineers manually test each and every feature of the mobile phones they develop before they release these out to the public. After all, the companies need to make sure that their products are free from glitches and bugs. The manual tests were sufficient enough, back in the day, that is. Nowadays, it would be impractical and practically the opposite of cost efficient if companies would not invest in automated tools to test their software. Sticking with manual tests would make it easier for any competitor to swipe them off the planet, so to speak.
There are so many advantages that come with using such tools as well making it all the more a worthwhile investment for software development companies. For instance, automated tools promote the elimination of human error. Since the tests themselves are automated, then the usual human errors that might have occurred while the manual tests were still administered could be had already. However, this does not mean that the use of automated tools would render the process of software development complete free from any errors at all. There would still be some errors, given that the tools here are still pretty much developed by mere humans. It is just that the errors that would occur would no longer be initiated by humans, nor would these be large in quantity.
The following types of testing can be automated
- Functional – testing that operations perform as expected.
- Regression – testing that the behavior of the system has not changed.
- Exception or Negative – forcing error conditions in the system.
- Stress – determining the absolute capacities of the application and operational infrastructure.
- Performance – providing assurance that the performance of the system will be adequate for both batch runs and online transactions in relation to business projections and requirements.
- Load – determining the points at which the capacity and performance of the system become degraded to the situation that hardware or software upgrades would be required.
Benefits of Automated Testing :
- Reliable: Tests perform precisely the same operations each time they are run, thereby eliminating human error
- Repeatable: You can test how the software reacts under repeated execution of the same operations.
- Programmable: You can program sophisticated tests that bring out hidden information from the application.
- Comprehensive: You can build a suite of tests that covers every feature in your application.
- Reusable: You can reuse tests on different versions of an application, even if the user interface changes.
- Better Quality Software: Because you can run more tests in less time with fewer resources
- Fast: Automated Tools run tests significantly faster than human users.
- Cost Reduction: As the number of resources for regression test are reduced.
Choosing the right tools for the job and targeting the right areas of the organization to deploy them can only realize these benefits. The right areas where the automation fit must be chosen.
Disadvantages of Automation Testing :
Though the automation testing has many advantages, it has its own disadvantages too. Some of the disadvantages are:
- Proficiency is required to write the automation test scripts.
- Debugging the test script is major issue. If any error is present in the test script, sometimes it may lead to deadly consequences.
- Test maintenance is costly in case of playback methods. Even though a minor change occurs in the GUI, the test script has to be rerecorded or replaced by a new test script.
- Maintenance of test data files is difficult, if the test script tests more screens.
Some of the above disadvantages often cause damage to the benefit gained from the automated scripts. Though the automation testing has pros and corns, it is adapted widely all over the world.