Run cargo test And cargo run Together When Files Change With watchexec

May 2024

watchexec -e rs "bash -c 'cargo test -- --nocapture && cargo run'"

You can also put it in a script like:

filename: start-test-and-run.bash

#!/bin/bash

watchexec -e rs "bash -c 'cargo test -- --nocapture && cargo run'"

Notes

There's probably a way to do that directly with cargo watch but I haven't figured that out yet
This also let you add other extensions to watch for (e.g. for template files). I wouldn't be surprised if cargo watch can do that too give its use of watchexec under the hood

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