Quality Assurance Companies: Regression Testing
Regression testing helps to determine whether or not the error has been successfully corrected.
After receiving the problem report, a programmer carefully analyzes the source code, identifies the cause of the error, corrects this error and tests the result. However, such luck does not always follow the expert – in practice, it happens that he is unable to perform all of these steps perfectly well. Some programmers fix only the symptoms described in the report. Such correction appears to be almost wasteful, as after it the steps that really cause the error are not eliminated – one of the error’s symptoms disappears, but others remain. It also happens that the programmer misunderstands the report and corrects another error instead of the required one, therefore it is reasonable to turn to quality assurance companies for the help to be 100% sure of the accuracy in the results.
Some unscrupulous employees do not test their own work at all: they make corrections carelessly and return the program immediately to testers, without correcting a previous error but introducing new ones in the product. The list is endless. It is vitally important that you keep calm, without getting confused when faced with similar situations. An experienced tester should be prepared for them in advance.
It is generally thought that about a third of corrections made to the program either do not work or even “break” something that already worked. There is a statistic showing that less than half the corrections introduced by programmers work on the first attempt.
Here are 2 tasks set by the tester who checks the changes made to the software by the programmer:
- Check that the error is corrected. Perform the same test during which it manifested itself and which was described in the report. If the program fails to pass this test, further testing is unnecessary. If the program passes the test, do not be in a rush to run the next test. If want to be hired by quality assurance company one day, you need to be a mindful person, but not only an educated and experienced qa specialist. Think for a moment whether or not you have really executed the right test. Are you sure you know how to reproduce the error? And in case of doubt, download the old version of the program, follow the steps described in the report and make sure that there is an error.
- Look for related errors. Suppose that the programmer has eliminated the error symptoms described in the report, but has not corrected the error itself. One can try to reproduce this error in some other way. Maybe the program has a similar situation? Take the time, if you feel that the error could be left uncorrected – test the program for another hour, maybe a few hours. Perform as many tests as you can.
Software testing companies list is most likely to serve you the good turn as it contains distinguished software testing specialists capable of performing any types of tests successfully.