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::{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     fn test_no_deps_ignores_path_deps_in_workspaces() {
  51         fn clean(cwd: &Path, target_dir: &Path) {
  52             Command::new("cargo")
  53                 .current_dir(cwd)
  54                 .env("CARGO_TARGET_DIR", target_dir)
  55                 .arg("clean")
  56                 .args(&["-p", "subcrate"])
  57                 .args(&["-p", "path_dep"])
  58                 .output()
  59                 .unwrap();
  60         }
  61
  62         if cargo::is_rustc_test_suite() {
  63             return;
  64         }
  65         let root = PathBuf::from(env!("CARGO_MANIFEST_DIR"));
  66         let target_dir = root.join("target").join("dogfood");
  67         let cwd = root.join("clippy_workspace_tests");
  68
  69         // Make sure we start with a clean state
  70         clean(&cwd, &target_dir);
  71
  72         // `path_dep` is a path dependency of `subcrate` that would trigger a denied lint.
  73         // Make sure that with the `--no-deps` argument Clippy does not run on `path_dep`.
  74         let output = Command::new(&*CLIPPY_PATH)
  75             .current_dir(&cwd)
  76             .env("CLIPPY_DOGFOOD", "1")
  77             .env("CARGO_INCREMENTAL", "0")
  78             .arg("clippy")
  79             .args(&["-p", "subcrate"])
  80             .arg("--")
  81             .arg("--no-deps")
  82             .arg("-Cdebuginfo=0") // disable debuginfo to generate less data in the target dir
  83             .args(&["--cfg", r#"feature="primary_package_test""#])
  84             .output()
  85             .unwrap();
  86         println!("status: {}", output.status);
  87         println!("stdout: {}", String::from_utf8_lossy(&output.stdout));
  88         println!("stderr: {}", String::from_utf8_lossy(&output.stderr));
  89
  90         assert!(output.status.success());
  91
  92         // Make sure we start with a clean state
  93         clean(&cwd, &target_dir);
  94
  95         // Test that without the `--no-deps` argument, `path_dep` is linted.
  96         let output = Command::new(&*CLIPPY_PATH)
  97             .current_dir(&cwd)
  98             .env("CLIPPY_DOGFOOD", "1")
  99             .env("CARGO_INCREMENTAL", "0")
 100             .arg("clippy")
 101             .args(&["-p", "subcrate"])
 102             .arg("--")
 103             .arg("-Cdebuginfo=0") // disable debuginfo to generate less data in the target dir
 104             .args(&["--cfg", r#"feature="primary_package_test""#])
 105             .output()
 106             .unwrap();
 107         println!("status: {}", output.status);
 108         println!("stdout: {}", String::from_utf8_lossy(&output.stdout));
 109         println!("stderr: {}", String::from_utf8_lossy(&output.stderr));
 110
 111         assert!(!output.status.success());
 112     }
 113
 114     // run clippy on remaining subprojects and fail the test if lint warnings are reported
 115     if cargo::is_rustc_test_suite() {
 116         return;
 117     }
 118     let root_dir = PathBuf::from(env!("CARGO_MANIFEST_DIR"));
 119
 120     // NOTE: `path_dep` crate is omitted on purpose here
 121     for d in &[
 122         "clippy_workspace_tests",
 123         "clippy_workspace_tests/src",
 124         "clippy_workspace_tests/subcrate",
 125         "clippy_workspace_tests/subcrate/src",
 126         "clippy_dev",
 127         "rustc_tools_util",
 128     ] {
 129         let output = Command::new(&*CLIPPY_PATH)
 130             .current_dir(root_dir.join(d))
 131             .env("CLIPPY_DOGFOOD", "1")
 132             .env("CARGO_INCREMENTAL", "0")
 133             .arg("clippy")
 134             .arg("--")
 135             .args(&["-D", "clippy::all"])
 136             .args(&["-D", "clippy::pedantic"])
 137             .arg("-Cdebuginfo=0") // disable debuginfo to generate less data in the target dir
 138             .output()
 139             .unwrap();
 140         println!("status: {}", output.status);
 141         println!("stdout: {}", String::from_utf8_lossy(&output.stdout));
 142         println!("stderr: {}", String::from_utf8_lossy(&output.stderr));
 143
 144         assert!(output.status.success());
 145     }
 146
 147     // NOTE: Since tests run in parallel we can't run cargo commands on the same workspace at the
 148     // same time, so we test this immediately after the dogfood for workspaces.
 149     test_no_deps_ignores_path_deps_in_workspaces();
 150 }