How to define test-only dependencies?

rust rust-cargo
llogiq picture llogiq · Apr 24, 2015 · Viewed 7.1k times · Source

I have a Rust library that implements a lint plugin. I want to include compiletest, but not require it outside of testing. What is the correct way to specify that the dependency is for testing only?

Answer

Shepmaster picture Shepmaster · Apr 24, 2015

Yes. Use dev-dependencies. From the Cargo docs:

You can add a [dev-dependencies] section to your Cargo.toml whose format is equivalent to [dependencies]:

[dev-dependencies]
tempdir = "0.3"

Dev-dependencies are not used when compiling a package for building, but are used for compiling tests, examples, and benchmarks.

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