1 #![feature(test)] // compiletest_rs requires this attribute
4 use compiletest_rs as compiletest;
5 use compiletest_rs::common::Mode as TestMode;
7 use std::env::{self, set_var, var};
11 use std::path::{Path, PathBuf};
15 // whether to run internal tests or not
16 const RUN_INTERNAL_TESTS: bool = cfg!(feature = "internal-lints");
18 fn host_lib() -> PathBuf {
19 option_env!("HOST_LIBS").map_or(cargo::CARGO_TARGET_DIR.join(env!("PROFILE")), PathBuf::from)
22 fn clippy_driver_path() -> PathBuf {
23 option_env!("CLIPPY_DRIVER_PATH").map_or(cargo::TARGET_LIB.join("clippy-driver"), PathBuf::from)
26 // When we'll want to use `extern crate ..` for a dependency that is used
27 // both by the crate and the compiler itself, we can't simply pass -L flags
28 // as we'll get a duplicate matching versions. Instead, disambiguate with
29 // `--extern dep=path`.
30 // See https://github.com/rust-lang/rust-clippy/issues/4015.
32 // FIXME: We cannot use `cargo build --message-format=json` to resolve to dependency files.
33 // Because it would force-rebuild if the options passed to `build` command is not the same
34 // as what we manually pass to `cargo` invocation
35 fn third_party_crates() -> String {
36 use std::collections::HashMap;
37 static CRATES: &[&str] = &["serde", "serde_derive", "regex", "clippy_lints", "syn", "quote"];
38 let dep_dir = cargo::TARGET_LIB.join("deps");
39 let mut crates: HashMap<&str, PathBuf> = HashMap::with_capacity(CRATES.len());
40 for entry in fs::read_dir(dep_dir).unwrap() {
41 let path = match entry {
42 Ok(entry) => entry.path(),
45 if let Some(name) = path.file_name().and_then(OsStr::to_str) {
47 if name.starts_with(&format!("lib{}-", dep)) && name.ends_with(".rlib") {
48 if let Some(old) = crates.insert(dep, path.clone()) {
49 panic!("Found multiple rlibs for crate `{}`: `{:?}` and `{:?}", dep, old, path);
57 let v: Vec<_> = crates
59 .map(|(dep, path)| format!("--extern {}={}", dep, path.display()))
64 fn default_config() -> compiletest::Config {
65 let mut config = compiletest::Config::default();
67 if let Ok(name) = env::var("TESTNAME") {
68 config.filter = Some(name);
71 if let Some(path) = option_env!("RUSTC_LIB_PATH") {
72 let path = PathBuf::from(path);
73 config.run_lib_path = path.clone();
74 config.compile_lib_path = path;
77 config.target_rustcflags = Some(format!(
78 "--emit=metadata -L {0} -L {1} -Dwarnings -Zui-testing {2}",
79 host_lib().join("deps").display(),
80 cargo::TARGET_LIB.join("deps").display(),
84 config.build_base = if cargo::is_rustc_test_suite() {
85 // This make the stderr files go to clippy OUT_DIR on rustc repo build dir
86 let mut path = PathBuf::from(env!("OUT_DIR"));
87 path.push("test_build_base");
90 host_lib().join("test_build_base")
92 config.rustc_path = clippy_driver_path();
96 fn run_mode(cfg: &mut compiletest::Config) {
97 cfg.mode = TestMode::Ui;
98 cfg.src_base = Path::new("tests").join("ui");
99 compiletest::run_tests(&cfg);
102 fn run_internal_tests(cfg: &mut compiletest::Config) {
103 // only run internal tests with the internal-tests feature
104 if !RUN_INTERNAL_TESTS {
107 cfg.mode = TestMode::Ui;
108 cfg.src_base = Path::new("tests").join("ui-internal");
109 compiletest::run_tests(&cfg);
112 fn run_ui_toml(config: &mut compiletest::Config) {
113 fn run_tests(config: &compiletest::Config, mut tests: Vec<tester::TestDescAndFn>) -> Result<bool, io::Error> {
114 let mut result = true;
115 let opts = compiletest::test_opts(config);
116 for dir in fs::read_dir(&config.src_base)? {
118 if !dir.file_type()?.is_dir() {
121 let dir_path = dir.path();
122 set_var("CARGO_MANIFEST_DIR", &dir_path);
123 for file in fs::read_dir(&dir_path)? {
125 let file_path = file.path();
126 if file.file_type()?.is_dir() {
129 if file_path.extension() != Some(OsStr::new("rs")) {
132 let paths = compiletest::common::TestPaths {
134 base: config.src_base.clone(),
135 relative_dir: dir_path.file_name().unwrap().into(),
137 let test_name = compiletest::make_test_name(&config, &paths);
140 .position(|test| test.desc.name == test_name)
141 .expect("The test should be in there");
142 result &= tester::run_tests_console(&opts, vec![tests.swap_remove(index)])?;
148 config.mode = TestMode::Ui;
149 config.src_base = Path::new("tests").join("ui-toml").canonicalize().unwrap();
151 let tests = compiletest::make_tests(&config);
153 let manifest_dir = var("CARGO_MANIFEST_DIR").unwrap_or_default();
154 let res = run_tests(&config, tests);
155 set_var("CARGO_MANIFEST_DIR", &manifest_dir);
158 Ok(false) => panic!("Some tests failed"),
160 panic!("I/O failure during tests: {:?}", e);
165 fn run_ui_cargo(config: &mut compiletest::Config) {
167 config: &compiletest::Config,
168 filter: &Option<String>,
169 mut tests: Vec<tester::TestDescAndFn>,
170 ) -> Result<bool, io::Error> {
171 let mut result = true;
172 let opts = compiletest::test_opts(config);
174 for dir in fs::read_dir(&config.src_base)? {
176 if !dir.file_type()?.is_dir() {
180 // Use the filter if provided
181 let dir_path = dir.path();
183 Some(name) if !dir_path.ends_with(name) => continue,
187 for case in fs::read_dir(&dir_path)? {
189 if !case.file_type()?.is_dir() {
193 let src_path = case.path().join("src");
195 // When switching between branches, if the previous branch had a test
196 // that the current branch does not have, the directory is not removed
197 // because an ignored Cargo.lock file exists.
198 if !src_path.exists() {
202 env::set_current_dir(&src_path)?;
203 for file in fs::read_dir(&src_path)? {
205 if file.file_type()?.is_dir() {
209 // Search for the main file to avoid running a test for each file in the project
210 let file_path = file.path();
211 match file_path.file_name().and_then(OsStr::to_str) {
212 Some("main.rs") => {},
215 let paths = compiletest::common::TestPaths {
217 base: config.src_base.clone(),
218 relative_dir: src_path.strip_prefix(&config.src_base).unwrap().into(),
220 let test_name = compiletest::make_test_name(&config, &paths);
223 .position(|test| test.desc.name == test_name)
224 .expect("The test should be in there");
225 result &= tester::run_tests_console(&opts, vec![tests.swap_remove(index)])?;
232 if cargo::is_rustc_test_suite() {
236 config.mode = TestMode::Ui;
237 config.src_base = Path::new("tests").join("ui-cargo").canonicalize().unwrap();
239 let tests = compiletest::make_tests(&config);
241 let current_dir = env::current_dir().unwrap();
242 let filter = env::var("TESTNAME").ok();
243 let res = run_tests(&config, &filter, tests);
244 env::set_current_dir(current_dir).unwrap();
248 Ok(false) => panic!("Some tests failed"),
250 panic!("I/O failure during tests: {:?}", e);
256 set_var("CLIPPY_DISABLE_DOCS_LINKS", "true");
257 set_var("CLIPPY_TESTS", "true");
258 //set_var("RUST_BACKTRACE", "0");
264 let mut config = default_config();
265 run_mode(&mut config);
266 run_ui_toml(&mut config);
267 run_ui_cargo(&mut config);
268 run_internal_tests(&mut config);