carols10cents/cargo-open

Add a test for trying ot open a crate that is not a dependency of the current project

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#8 opened on Oct 4, 2015

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E-easyhelp wanted

Description

In main.rs, add a unit test for the cargo_dir function that checks that it panics if we have specified a new crate in the Cargo.toml file but have not yet run any command that would fetch that crate's source to our local filesystem.

Use the existing test marked should_panic for an example of how to make a test check that a function panics.

I doubt that this test will pass currently! Eventually, I'd like this to panic with a message like "Cannot open crate whatever because it is not a dependency of the current project`" or similar.

Contributor guide

Tech stack
rust
Domain
clitesting
Issue type
test
DifficultyEstimated implementation difficulty for a new contributor, from 1 for very small changes to 5 for expert-level work.
2
Estimated timeA rough time range for an experienced contributor to investigate, implement, test, and prepare a pull request.
under 1 hour
Activity statusHow available the issue appears right now: fresh, active, stale, blocked, or waiting on maintainer input.
stale
ClarityHow clearly the issue explains the expected change, acceptance criteria, and next step.
clear
Prerequisites
Basic RustUnit testing with #[should panic]
Newbie friendlinessA 1-100 score estimating how approachable this issue is for first-time contributors.
70
Research direction
Add a unit test in main.rs for the cargo dir function that panics when the crate source is not fetched. Use the existing should panic test as a reference. The issue is from 2015 with no activity, so no blockers or recent context.