To Error is Human is the very fact which drives the necessity for automation testing. As a result of, guide testers could not execute the take a look at instances accurately. There can be a whole lot of prospects for making errors. They might give mistaken enter knowledge as a result of typo, or they could not discover the precise conduct of the system accurately, or they could not report the take a look at outcome accurately, or they could miss to execute some take a look at instances, or they could overlook to run some preconditions, or they could change the sequence of take a look at case execution in case sequence is essential.
One other essential issue is, Automation take a look at scripts can be used as a means of storing area / venture / process data gained by the Take a look at Engineers. Say for instance, if a Tester works in venture for one yr, he may need spent extra time for studying the area, goal of the venture, modules within the venture, circulation of all functionalities. He can be conversant in identified points and challenges.
If this Tester leaves from the venture, the data gained by him additionally will go away.
It is rather tough for the newly becoming a member of Tester to know the whole lot from the Take a look at Case doc.
If automation take a look at scripts are already obtainable then the brand new Tester can simply begin the testing by operating the automation scripts, with out gaining a lot data in regards to the venture.
He can perceive the circulation / knowledge by seeing the execution of the automation take a look at scripts. However anyway, he ought to achieve venture / area data to reinforce / replace the automation scripts additional. So we are able to say that take a look at automation is a means of storing data.
Automation software akin to QTP (Fast Take a look at Skilled) has characteristic for storing screenshot of each web page navigated in the course of the execution. So it may be used as a proof for completion of testing, and in addition we are able to refer the screenshots of earlier executions if there’s any have to refer them.
Take a look at report might be mechanically written to a personalized report web page which can guarantee accuracy of the report and in addition it might enhance look & really feel of the report.
The essential benefit of automation testing over guide testing is, execution pace. Take a look at execution might be accomplished shortly and in addition we are able to execution the scripts in night time time additionally with out human path. So in the end complete time wanted for testing might be lowered which can considerably assist for well timed venture completion. There could also be requirement of doing a little testing at particular time. It may be simply achieved by placing execution of these automation take a look at scripts in a process scheduler / crone job. The software akin to QTP helps automation object mannequin to realize this.
The practical take a look at automation scripts can be helpful for doing efficiency testing additionally. As a result of many efficiency take a look at instruments will help reusing / calling of those take a look at scripts.
Some sort of testing entails evaluating great amount of information between earlier model and present model as a part of regression testing. Virtually it could not attainable for doing it manually. This drawback might be simply solved by easy shell script or some other scripts akin to vbs, wsh.
Because the automation take a look at instruments help Information Pushed Testing, Take a look at execution might be performed repeatedly with many various knowledge units.
There are lot of automation take a look at instruments obtainable for doing Useful, Regression and Efficiency Testing. Take a look at full, SilkTest, SilkPerformer, QARun, QALoad, TestPartner, WinRunner, LoadRunner, QTP, Rational Robotic and openSTA are a few of them. QTP is most generally used now because it helps vbscript and it may be used for testing many various functions simply by including required add-ins.