Smoke test basics

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A smoke test is a preliminary test to ensure that the critical parts of a system are functioning as expected. It is typically a quick and broad test, rather than a detailed one, to confirm that the system is operational before proceeding with more comprehensive testing. The term "smoke test" comes from the practice of applying power to a new piece of electronic hardware to see if it produces smoke, which would indicate a serious problem.

In software development, a smoke test often involves running a set of basic tests to check that the application starts up correctly, that the main features are accessible, and that there are no obvious errors or crashes. This helps to quickly identify any major issues that would prevent further testing or deployment.

Here are the key aspects of a smoke test:

1. Objective: To verify that the most important functions of a software application work, but not to test everything in detail.

2. Scope: Typically includes the core functionality and critical paths of the application. It does not cover all possible scenarios or edge cases.

3. Execution: Usually automated and run as part of the continuous integration/continuous deployment (CI/CD) pipeline. It can also be performed manually in some cases.

4. Outcome: If the smoke test passes, it indicates that the application is stable enough to proceed with more detailed testing. If it fails, it suggests that there are significant issues that need to be addressed before further testing can be conducted.

In summary, a smoke test is a quick check to ensure that the critical components of a system are working as expected, providing a green light for more comprehensive testing to follow.