Writing unit-, integration-, etc. tests should be an integral part of the development work, but in my experience in many organizations it is more like an afterthought. Sometimes relegated to a separate team or separate department.
Some people put a lot of emphasize on the separation between unit-, integration-, and acceptance testing. They are all part of the larger group called functional testing. I think it is primarily a question of scope. They all have the same equation:
Fixture + Input = Expected Output + Bugs
In this series of articles we are going to cover how one could write tests in Rust.
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In the series about the Rocket web development framework each example in each article comes with its tests.
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See the tests tag
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There is a nice collection of types of testing.
