```
cargo install grcov
rustup component add llvm-tools-preview
```

```
RUSTFLAGS="-Cinstrument-coverage" cargo clean
RUSTFLAGS="-Cinstrument-coverage" cargo test
grcov . --binary-path ./target/debug/deps/ -s . -t html --branch --ignore-not-existing --ignore '../*' --ignore "/*" -o target/coverage/html
```