rust-clippy/tests/versioncheck.rs

// Copyright 2014-2018 The Rust Project Developers. See the COPYRIGHT
// file at the top-level directory of this distribution.
//
// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
// option. This file may not be copied, modified, or distributed
// except according to those terms.

extern crate cargo_metadata;
extern crate semver;
use semver::VersionReq;

#[test]
fn check_that_clippy_lints_has_the_same_version_as_clippy() {
    let clippy_meta = cargo_metadata::metadata(None).expect("could not obtain cargo metadata");
    std::env::set_current_dir(std::env::current_dir().unwrap().join("clippy_lints")).unwrap();
    let clippy_lints_meta = cargo_metadata::metadata(None).expect("could not obtain cargo metadata");
    assert_eq!(clippy_lints_meta.packages[0].version, clippy_meta.packages[0].version);
    for package in &clippy_meta.packages[0].dependencies {
        if package.name == "clippy_lints" {
            assert_eq!(
                VersionReq::parse(&clippy_lints_meta.packages[0].version).unwrap(),
                package.req
            );
            return;
        }
    }
}