Smoke Testing:
Smoke testing is a term used in plumbing, woodwind repair, electronics, and computer software development. It refers to the first test made after repairs or first assembly to provide some assurance that the system under test will not catastrophically fail. After a smoke test proves that the pipes will not leak, the keys seal properly, the circuit will not burn, or the software will not crash outright, the assembly is ready for more stressful testing.
In software testing area, smoke testing is a preliminary to further testing, which should reveal simple failures severe enough to reject a prospective software release. In this case, the smoke is metaphorical.
Smoke testing is done by developers before the build is released or by testers before accepting a build for further testing.
In software engineering, a smoke test generally consists of a collection of tests that can be applied to a newly created or repaired computer program. Sometimes the tests are performed
by the automated system that builds the final software. In this sense a smoke test is the process of validating code changes before the changes are checked into the larger product�s official source code collection. Next after code reviews, smoke testing is the most cost effective method for identifying and fixing defects in software; some even believe that it is the most effective of all.[citation needed]In software testing, a smoke test is a collection of written tests that are performed on a system prior to being accepted for further testing. This is also known as a build verification test. This is a “shallow and wide” approach to the application. The tester “touches” all areas of the application without getting too deep, looking for answers to basic questions like, “Can I launch the test item at all?”, “Does it open to a window?”, “Do the buttons on the window do things?”. There is no need to get down to field validation or business flows. If you get a “No” answer to basic questions like these, then the application is so badly broken, there’s effectively nothing there to allow further testing. These written tests can either be performed manually or using an automated tool. When automated tools are used, the tests are often initiated by the same process that generates the build itself.
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