Rust is under heavy development and many features are changing. So we need tests those show us the tutorial is correct when a new version is coming. So we have two kinds of tests for this tutorial.

Those tests are in the CompileFailTest directory. Each file contains examples of compiling fail in the tutorial with the same number.

These tests are document tests because we can check compile_faile only in this kind of test.

For running all the tests, you can simply run make command in that directory.

These tests are in the *tests directory. For running them you can run cargo test in the current directory. One thing you should consider is many of these tests are not good tests. Because They are not really unit tests. Most of the times we just want to check that this code will compile.