# Engine Development

To run the tests use the following command:

cargo test

This will run all tests in the engine. But sometime you may wish to skip some tests, specially the rendering ones. To do this you can use the --skip flag. For example, to skip the rendering tests you can run:

cargo test -- --skip render --skip graphics

To generate test code coverage we recommend using the cargo-llvm-cov crate. To install it run:

cargo install cargo-llvm-cov

Then, to run the tests and generate a coverage report file run:

cargo llvm-cov --lcov --output-path coverage/lcov.info

To see the coverage report inline in VSCode you can use the markis.code-coverage extension.