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Should unit tests be public?
Unit Tests Should Only Test Public Methods In fact, if you are practicing test-driven development (TDD), the unit test is your first client of the object. If an object is hard to test via its public interface, it is going to be hard to use in the production code.
Should I unit test protected methods?
Your code should be thoroughly tested. If you can get there by writing tests for the public methods, that sufficiently exercise the protected/private methods, that’s great. If you can’t, then either refactor so that you can, or bend the protected/private rules.
What do you cover in unit testing?
Unit tests should validate all of the details, the corner cases and boundary conditions, etc. Component, integration, UI, and functional tests should be used more sparingly, to validate the behavior of the APIs or application as a whole.
Which is the best approach to unit testing?
A primary approach for designing various unit test scenarios should use Boundary Value Analysis. Using it, you can better test the different branches in the code. However, an essential step before depending on it is to test the requirements. Most unit tests are not about testing business cases accurately.
Why are unit tests not an effective way to find bugs?
As you may notice, there are many other practices beyond unit testing to ensure that the product quality standards are met. In most cases, unit tests are not an effective way to find bugs. Unit tests, by definition, examine each unit of your code separately.
How are unit tests used in real life?
Unit tests, by definition, examine each unit of your code separately. But when your application is run for real, all those units have to work together, and the whole is more complex and subtle than the sum of its independently-tested parts.
Why do you need to write unit tests?
Because imagine that right now, when someone creates a code, he will write unit tests based on its structure and understanding of the story. Often times, the one that makes code review doesn’t understand 100 percent, in-depth all pieces of the code and tests. We usually look for more fundamental errors in most cases.