[dzmitry_lahoda]

`In order to track ReactOS compatibility with Windows behavior, 1,088,893 unit test cases have been added since 0.4.5. This new release has been tested through 14,238,159 unit test cases, failing just 18,419 (a 0,129% ratio failure). Still, ReactOS is marked as Alpha for the moment.`

14M tests are impressive.

[niklasrde]

I'm guessing they haven't been written manually?

[bonzini]

3 nested for loops may count as thousands of tests (not that it diminishes the value of the tests). Probably most of them come from Wine.

[JdeBP]

The tests appear to be at https://github.com/reactos/reactos/tree/master/rostests