Tests seem to run for both lib and main

[Dimitrie-Toma Furdui]

Hi, I am following the blog, currently at the tests post. The tests seem to run twice:

Running unittests src/lib.rs (target/target/debug/deps/os-700045f9d1cee9a8)
...
Running unittests src/main.rs (target/target/debug/deps/os-72fe698e079ceb87)

Both files call test_main so the tests run twice. Any idea why? I compared my code with the post-04 branch and seems to be the same.

Thank you! Awesome work btw :)

[Philipp Oppermann]

That's how testing in Rust works. Libraries are built and tested separately from binaries.

[Dimitrie-Toma Furdui]

Thanks!