rust-test-narrow

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Run a single Rust test (or test module) with full output. Prefer this over `cargo test --workspace` when debugging one failure.

By 3lpsy schedule Updated 6/2/2026

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name: rust-test-narrow description: Run a single Rust test (or test module) with full output. Prefer this over `cargo test --workspace` when debugging one failure.

rust-test-narrow

Default to the narrowest invocation that reproduces the failure:

cargo test -p <crate> <test_path> -- --nocapture --test-threads=1

Where:

-p <crate> scopes compilation to one workspace member.
<test_path> is module::submodule::test_name (or just test_name).
--nocapture shows println/eprintln output (rust-analyzer hides it).
--test-threads=1 makes ordering deterministic for flaky timing tests.

Only widen to cargo test --workspace when the failure can't be reproduced narrowly. Wide test runs blow the small-model context window with unrelated output.

Install via CLI

npx skills add https://github.com/3lpsy/homelab --skill rust-test-narrow

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rust-test-narrow

name: rust-test-narrow description: Run a single Rust test (or test module) with full output. Prefer this over cargo test --workspace when debugging one failure.

rust-test-narrow

name: rust-test-narrow description: Run a single Rust test (or test module) with full output. Prefer this over `cargo test --workspace` when debugging one failure.