Automated testing is the process through which testing tools such as Selenium and Cucumber run tests, comparing a developing program’s outcomes. If the program expectations and outcomes align, your project is behaving as it should, there are likely to be no bugs. If the two don’t align, there is likely to be a bug or an issue. You will have to review the code, make changes and continue to run tests until you get a positive outcome.
- The return of investment will pay off, it is proven that the return of that investment is a long-term one and it will also save time.
- You do not have to be in one location, it can be accessed anywhere. The tests can be started when you leave the office and be run overnight to get the outcome.
- You would need a test automation engineer to write your scripts to automate your tests, with manual testing you need more people.
- Scripts are reusable you don’t need new scripts all the time, you can reuse scripts to do the same tests.
- Automation helps you find bugs in the early stages of development, saving time and money.
- Automated testing is more reliable and way quicker when running repetitive tests.
- Automated testing allows to run tests on thousands of devices, you would not be able to do this manually.
Manual testing is the process through people run tests manually, comparing expectations and actual outcomes to find bugs. Manual tests are no more than the tester using the program as an end user would, and then determining whether the program acts appropriately.
- If the test cases must be run a small number of times it is easier to do this manually.
- No automation tool can match the power of human brain and experience.
- It allows the tester to do more varied and personalised testing.
- Manual testing can be done by any tester, automation testers will require testing.
- GUI testing can be done accurately with the help of manual testing as visual accessibility and preferences are difficult to automate.
- Automation testing cannot replace human intuitions, inferences and reasoning.
- Automation testing cannot be stopped in between, in case any analysis required.
Automation V Manual
Manual and automation testing has different benefits in different testing scenarios, manual testing will be more effective and useful in some cases but automation has a big advantage. With manual testing issues can be spotted and accessed easily, this method can also be more flexible and you can tailor the script. However, automation testing is more of efficient and quick way to sort out and identify bugs. It is much more convenient for large scale projects and is better for team collaboration.
Each method has its own pro’s and con’s, many developers and testers use both methods in different projects. For complex projects developers may prefer manual testing as you can tailor it and it controlled by the tester or developer themselves. The big advantage automation testing has is the reliability and efficiency, with big projects (which is becoming more common with continuous integration) is a much better method.
We are seeing more and more companies make the transition towards automation testing, however, manual testing never die and will be used in more complex, detailed projects.