assert_matches

Provides a macro, assert_matches, which tests whether a value matches a given pattern, causing a panic if the match fails.

Documentation

#[macro_use]externcrate assert_matches;#[derive(Debug)]enumFoo{A(i32),B(i32),}let a = Foo::A(1);assert_matches!(a,Foo::A(_));assert_matches!(a,Foo::A(i)if i > 0);

To include in your project, only when tests are compiled, add the following to your Cargo.toml:

[dev-dependencies]
assert_matches = "1.5"

And add the following to your crate root:

#[cfg(test)]#[macro_use]externcrate assert_matches;

License

assert_matches is distributed under the terms of both the MIT license and the Apache License (Version 2.0).

See LICENSE-APACHE and LICENSE-MIT for details.