tests/dogfood.rs

   1 // Dogfood cannot run on Windows
   2 #![cfg(not(windows))]
   3 #![feature(once_cell)]
   4
   5 use std::lazy::SyncLazy;
   6 use std::path::PathBuf;
   7 use std::process::Command;
   8
   9 mod cargo;
  10
  11 static CLIPPY_PATH: SyncLazy<PathBuf> = SyncLazy::new(|| cargo::TARGET_LIB.join("cargo-clippy"));
  12
  13 #[test]
  14 fn dogfood_clippy() {
  15     // run clippy on itself and fail the test if lint warnings are reported
  16     if cargo::is_rustc_test_suite() {
  17         return;
  18     }
  19     let root_dir = PathBuf::from(env!("CARGO_MANIFEST_DIR"));
  20
  21     let mut command = Command::new(&*CLIPPY_PATH);
  22     command
  23         .current_dir(root_dir)
  24         .env("CLIPPY_DOGFOOD", "1")
  25         .env("CARGO_INCREMENTAL", "0")
  26         .arg("clippy-preview")
  27         .arg("--all-targets")
  28         .arg("--all-features")
  29         .arg("--")
  30         .args(&["-D", "clippy::all"])
  31         .args(&["-D", "clippy::pedantic"])
  32         .arg("-Cdebuginfo=0"); // disable debuginfo to generate less data in the target dir
  33
  34     // internal lints only exist if we build with the internal-lints feature
  35     if cfg!(feature = "internal-lints") {
  36         command.args(&["-D", "clippy::internal"]);
  37     }
  38
  39     let output = command.output().unwrap();
  40
  41     println!("status: {}", output.status);
  42     println!("stdout: {}", String::from_utf8_lossy(&output.stdout));
  43     println!("stderr: {}", String::from_utf8_lossy(&output.stderr));
  44
  45     assert!(output.status.success());
  46 }
  47
  48 #[test]
  49 fn dogfood_subprojects() {
  50     // run clippy on remaining subprojects and fail the test if lint warnings are reported
  51     if cargo::is_rustc_test_suite() {
  52         return;
  53     }
  54     let root_dir = PathBuf::from(env!("CARGO_MANIFEST_DIR"));
  55
  56     for d in &[
  57         "clippy_workspace_tests",
  58         "clippy_workspace_tests/src",
  59         "clippy_workspace_tests/subcrate",
  60         "clippy_workspace_tests/subcrate/src",
  61         "clippy_dev",
  62         "rustc_tools_util",
  63     ] {
  64         let output = Command::new(&*CLIPPY_PATH)
  65             .current_dir(root_dir.join(d))
  66             .env("CLIPPY_DOGFOOD", "1")
  67             .env("CARGO_INCREMENTAL", "0")
  68             .arg("clippy")
  69             .arg("--")
  70             .args(&["-D", "clippy::all"])
  71             .args(&["-D", "clippy::pedantic"])
  72             .arg("-Cdebuginfo=0") // disable debuginfo to generate less data in the target dir
  73             .output()
  74             .unwrap();
  75         println!("status: {}", output.status);
  76         println!("stdout: {}", String::from_utf8_lossy(&output.stdout));
  77         println!("stderr: {}", String::from_utf8_lossy(&output.stderr));
  78
  79         assert!(output.status.success());
  80     }
  81 }