rust-clippy/tests/workspace.rs

108 lines
3.7 KiB
Rust

#![feature(once_cell)]
use std::path::PathBuf;
use std::process::Command;
use test_utils::{CARGO_CLIPPY_PATH, IS_RUSTC_TEST_SUITE};
mod test_utils;
#[test]
fn test_no_deps_ignores_path_deps_in_workspaces() {
if IS_RUSTC_TEST_SUITE {
return;
}
let root = PathBuf::from(env!("CARGO_MANIFEST_DIR"));
let target_dir = root.join("target").join("workspace_test");
let cwd = root.join("tests/workspace_test");
// Make sure we start with a clean state
Command::new("cargo")
.current_dir(&cwd)
.env("CARGO_TARGET_DIR", &target_dir)
.arg("clean")
.args(["-p", "subcrate"])
.args(["-p", "path_dep"])
.output()
.unwrap();
// `path_dep` is a path dependency of `subcrate` that would trigger a denied lint.
// Make sure that with the `--no-deps` argument Clippy does not run on `path_dep`.
let output = Command::new(&*CARGO_CLIPPY_PATH)
.current_dir(&cwd)
.env("CARGO_INCREMENTAL", "0")
.env("CARGO_TARGET_DIR", &target_dir)
.arg("clippy")
.args(["-p", "subcrate"])
.arg("--no-deps")
.arg("--")
.arg("-Cdebuginfo=0") // disable debuginfo to generate less data in the target dir
.args(["--cfg", r#"feature="primary_package_test""#])
.output()
.unwrap();
println!("status: {}", output.status);
println!("stdout: {}", String::from_utf8_lossy(&output.stdout));
println!("stderr: {}", String::from_utf8_lossy(&output.stderr));
assert!(output.status.success());
let lint_path_dep = || {
// Test that without the `--no-deps` argument, `path_dep` is linted.
let output = Command::new(&*CARGO_CLIPPY_PATH)
.current_dir(&cwd)
.env("CARGO_INCREMENTAL", "0")
.env("CARGO_TARGET_DIR", &target_dir)
.arg("clippy")
.args(["-p", "subcrate"])
.arg("--")
.arg("-Cdebuginfo=0") // disable debuginfo to generate less data in the target dir
.args(["--cfg", r#"feature="primary_package_test""#])
.output()
.unwrap();
println!("status: {}", output.status);
println!("stdout: {}", String::from_utf8_lossy(&output.stdout));
println!("stderr: {}", String::from_utf8_lossy(&output.stderr));
assert!(!output.status.success());
assert!(
String::from_utf8(output.stderr)
.unwrap()
.contains("error: empty `loop {}` wastes CPU cycles")
);
};
// Make sure Cargo is aware of the removal of `--no-deps`.
lint_path_dep();
let successful_build = || {
let output = Command::new(&*CARGO_CLIPPY_PATH)
.current_dir(&cwd)
.env("CARGO_INCREMENTAL", "0")
.env("CARGO_TARGET_DIR", &target_dir)
.arg("clippy")
.args(["-p", "subcrate"])
.arg("--")
.arg("-Cdebuginfo=0") // disable debuginfo to generate less data in the target dir
.output()
.unwrap();
println!("status: {}", output.status);
println!("stdout: {}", String::from_utf8_lossy(&output.stdout));
println!("stderr: {}", String::from_utf8_lossy(&output.stderr));
assert!(output.status.success());
output
};
// Trigger a successful build, so Cargo would like to cache the build result.
successful_build();
// Make sure there's no spurious rebuild when nothing changes.
let stderr = String::from_utf8(successful_build().stderr).unwrap();
assert!(!stderr.contains("Compiling"));
assert!(!stderr.contains("Checking"));
assert!(stderr.contains("Finished"));
// Make sure Cargo is aware of the new `--cfg` flag.
lint_path_dep();
}