1 #![feature(test)] // compiletest_rs requires this attribute
3 use compiletest_rs as compiletest;
4 use compiletest_rs::common::Mode as TestMode;
6 use std::env::{self, set_var};
10 use std::path::{Path, PathBuf};
14 fn host_lib() -> PathBuf {
15 if let Some(path) = option_env!("HOST_LIBS") {
18 cargo::CARGO_TARGET_DIR.join(env!("PROFILE"))
22 fn clippy_driver_path() -> PathBuf {
23 if let Some(path) = option_env!("CLIPPY_DRIVER_PATH") {
26 cargo::TARGET_LIB.join("clippy-driver")
30 // When we'll want to use `extern crate ..` for a dependency that is used
31 // both by the crate and the compiler itself, we can't simply pass -L flags
32 // as we'll get a duplicate matching versions. Instead, disambiguate with
33 // `--extern dep=path`.
34 // See https://github.com/rust-lang/rust-clippy/issues/4015.
36 // FIXME: We cannot use `cargo build --message-format=json` to resolve to dependency files.
37 // Because it would force-rebuild if the options passed to `build` command is not the same
38 // as what we manually pass to `cargo` invocation
39 fn third_party_crates() -> String {
40 use std::collections::HashMap;
41 static CRATES: &[&str] = &["serde", "serde_derive", "regex", "clippy_lints", "syn", "quote"];
42 let dep_dir = cargo::TARGET_LIB.join("deps");
43 let mut crates: HashMap<&str, PathBuf> = HashMap::with_capacity(CRATES.len());
44 for entry in fs::read_dir(dep_dir).unwrap() {
45 let path = match entry {
46 Ok(entry) => entry.path(),
49 if let Some(name) = path.file_name().and_then(OsStr::to_str) {
51 if name.starts_with(&format!("lib{}-", dep)) && name.ends_with(".rlib") {
52 if let Some(old) = crates.insert(dep, path.clone()) {
53 panic!("Found multiple rlibs for crate `{}`: `{:?}` and `{:?}", dep, old, path);
61 let v: Vec<_> = crates
63 .map(|(dep, path)| format!("--extern {}={}", dep, path.display()))
68 fn default_config() -> compiletest::Config {
69 let mut config = compiletest::Config::default();
71 if let Ok(name) = env::var("TESTNAME") {
72 config.filter = Some(name);
75 if let Some(path) = option_env!("RUSTC_LIB_PATH") {
76 let path = PathBuf::from(path);
77 config.run_lib_path = path.clone();
78 config.compile_lib_path = path;
81 config.target_rustcflags = Some(format!(
82 "-L {0} -L {1} -Dwarnings -Zui-testing {2}",
83 host_lib().join("deps").display(),
84 cargo::TARGET_LIB.join("deps").display(),
88 config.build_base = if cargo::is_rustc_test_suite() {
89 // This make the stderr files go to clippy OUT_DIR on rustc repo build dir
90 let mut path = PathBuf::from(env!("OUT_DIR"));
91 path.push("test_build_base");
94 host_lib().join("test_build_base")
96 config.rustc_path = clippy_driver_path();
100 fn run_mode(cfg: &mut compiletest::Config) {
101 cfg.mode = TestMode::Ui;
102 cfg.src_base = Path::new("tests").join("ui");
103 compiletest::run_tests(&cfg);
106 fn run_ui_toml(config: &mut compiletest::Config) {
107 fn run_tests(config: &compiletest::Config, mut tests: Vec<tester::TestDescAndFn>) -> Result<bool, io::Error> {
108 let mut result = true;
109 let opts = compiletest::test_opts(config);
110 for dir in fs::read_dir(&config.src_base)? {
112 if !dir.file_type()?.is_dir() {
115 let dir_path = dir.path();
116 set_var("CARGO_MANIFEST_DIR", &dir_path);
117 for file in fs::read_dir(&dir_path)? {
119 let file_path = file.path();
120 if file.file_type()?.is_dir() {
123 if file_path.extension() != Some(OsStr::new("rs")) {
126 let paths = compiletest::common::TestPaths {
128 base: config.src_base.clone(),
129 relative_dir: dir_path.file_name().unwrap().into(),
131 let test_name = compiletest::make_test_name(&config, &paths);
134 .position(|test| test.desc.name == test_name)
135 .expect("The test should be in there");
136 result &= tester::run_tests_console(&opts, vec![tests.swap_remove(index)])?;
142 config.mode = TestMode::Ui;
143 config.src_base = Path::new("tests").join("ui-toml").canonicalize().unwrap();
145 let tests = compiletest::make_tests(&config);
147 let res = run_tests(&config, tests);
150 Ok(false) => panic!("Some tests failed"),
152 panic!("I/O failure during tests: {:?}", e);
157 fn run_ui_cargo(config: &mut compiletest::Config) {
158 if cargo::is_rustc_test_suite() {
162 config: &compiletest::Config,
163 filter: &Option<String>,
164 mut tests: Vec<tester::TestDescAndFn>,
165 ) -> Result<bool, io::Error> {
166 let mut result = true;
167 let opts = compiletest::test_opts(config);
169 for dir in fs::read_dir(&config.src_base)? {
171 if !dir.file_type()?.is_dir() {
175 // Use the filter if provided
176 let dir_path = dir.path();
178 Some(name) if !dir_path.ends_with(name) => continue,
182 for case in fs::read_dir(&dir_path)? {
184 if !case.file_type()?.is_dir() {
188 let src_path = case.path().join("src");
190 // When switching between branches, if the previous branch had a test
191 // that the current branch does not have, the directory is not removed
192 // because an ignored Cargo.lock file exists.
193 if !src_path.exists() {
197 env::set_current_dir(&src_path)?;
198 for file in fs::read_dir(&src_path)? {
200 if file.file_type()?.is_dir() {
204 // Search for the main file to avoid running a test for each file in the project
205 let file_path = file.path();
206 match file_path.file_name().and_then(OsStr::to_str) {
207 Some("main.rs") => {},
211 let paths = compiletest::common::TestPaths {
213 base: config.src_base.clone(),
214 relative_dir: src_path.strip_prefix(&config.src_base).unwrap().into(),
216 let test_name = compiletest::make_test_name(&config, &paths);
219 .position(|test| test.desc.name == test_name)
220 .expect("The test should be in there");
221 result &= tester::run_tests_console(&opts, vec![tests.swap_remove(index)])?;
228 config.mode = TestMode::Ui;
229 config.src_base = Path::new("tests").join("ui-cargo").canonicalize().unwrap();
231 let tests = compiletest::make_tests(&config);
233 let current_dir = env::current_dir().unwrap();
234 let filter = env::var("TESTNAME").ok();
235 let res = run_tests(&config, &filter, tests);
236 env::set_current_dir(current_dir).unwrap();
240 Ok(false) => panic!("Some tests failed"),
242 panic!("I/O failure during tests: {:?}", e);
248 set_var("CLIPPY_DISABLE_DOCS_LINKS", "true");
249 set_var("CLIPPY_TESTS", "true");
250 //set_var("RUST_BACKTRACE", "0");
256 let mut config = default_config();
257 run_mode(&mut config);
258 run_ui_toml(&mut config);
259 run_ui_cargo(&mut config);