1 files changed, 261 insertions, 0 deletions
diff --git a/third_party/rust/tempfile/tests/tempdir.rs b/third_party/rust/tempfile/tests/tempdir.rs
new file mode 100644
index 0000000000..746fe4738c
--- /dev/null
+++ b/third_party/rust/tempfile/tests/tempdir.rs
@@ -0,0 +1,261 @@
+// Copyright 2013-2014 The Rust Project Developers. See the COPYRIGHT
+// file at the top-level directory of this distribution and at
+// http://rust-lang.org/COPYRIGHT.
+//
+// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
+// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
+// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
+// option. This file may not be copied, modified, or distributed
+// except according to those terms.
+
+#![deny(rust_2018_idioms)]
+
+use std::env;
+use std::fs;
+use std::path::Path;
+use std::sync::mpsc::channel;
+use std::thread;
+
+use tempfile::{Builder, TempDir};
+
+macro_rules! t {
+    ($e:expr) => {
+        match $e {
+            Ok(n) => n,
+            Err(e) => panic!("error: {}", e),
+        }
+    };
+}
+
+trait PathExt {
+    fn exists(&self) -> bool;
+    fn is_dir(&self) -> bool;
+}
+
+impl PathExt for Path {
+    fn exists(&self) -> bool {
+        fs::metadata(self).is_ok()
+    }
+    fn is_dir(&self) -> bool {
+        fs::metadata(self).map(|m| m.is_dir()).unwrap_or(false)
+    }
+}
+
+fn test_tempdir() {
+    let path = {
+        let p = t!(Builder::new().prefix("foobar").tempdir_in(&Path::new(".")));
+        let p = p.path();
+        assert!(p.to_str().unwrap().contains("foobar"));
+        p.to_path_buf()
+    };
+    assert!(!path.exists());
+}
+
+#[test]
+fn test_customnamed() {
+    let tmpfile = Builder::new()
+        .prefix("prefix")
+        .suffix("suffix")
+        .rand_bytes(12)
+        .tempdir()
+        .unwrap();
+    let name = tmpfile.path().file_name().unwrap().to_str().unwrap();
+    assert!(name.starts_with("prefix"));
+    assert!(name.ends_with("suffix"));
+    assert_eq!(name.len(), 24);
+}
+
+fn test_rm_tempdir() {
+    let (tx, rx) = channel();
+    let f = move || -> () {
+        let tmp = t!(TempDir::new());
+        tx.send(tmp.path().to_path_buf()).unwrap();
+        panic!("panic to unwind past `tmp`");
+    };
+    let _ = thread::spawn(f).join();
+    let path = rx.recv().unwrap();
+    assert!(!path.exists());
+
+    let tmp = t!(TempDir::new());
+    let path = tmp.path().to_path_buf();
+    let f = move || -> () {
+        let _tmp = tmp;
+        panic!("panic to unwind past `tmp`");
+    };
+    let _ = thread::spawn(f).join();
+    assert!(!path.exists());
+
+    let path;
+    {
+        let f = move || t!(TempDir::new());
+
+        let tmp = thread::spawn(f).join().unwrap();
+        path = tmp.path().to_path_buf();
+        assert!(path.exists());
+    }
+    assert!(!path.exists());
+
+    let path;
+    {
+        let tmp = t!(TempDir::new());
+        path = tmp.into_path();
+    }
+    assert!(path.exists());
+    t!(fs::remove_dir_all(&path));
+    assert!(!path.exists());
+}
+
+fn test_rm_tempdir_close() {
+    let (tx, rx) = channel();
+    let f = move || -> () {
+        let tmp = t!(TempDir::new());
+        tx.send(tmp.path().to_path_buf()).unwrap();
+        t!(tmp.close());
+        panic!("panic when unwinding past `tmp`");
+    };
+    let _ = thread::spawn(f).join();
+    let path = rx.recv().unwrap();
+    assert!(!path.exists());
+
+    let tmp = t!(TempDir::new());
+    let path = tmp.path().to_path_buf();
+    let f = move || -> () {
+        let tmp = tmp;
+        t!(tmp.close());
+        panic!("panic when unwinding past `tmp`");
+    };
+    let _ = thread::spawn(f).join();
+    assert!(!path.exists());
+
+    let path;
+    {
+        let f = move || t!(TempDir::new());
+
+        let tmp = thread::spawn(f).join().unwrap();
+        path = tmp.path().to_path_buf();
+        assert!(path.exists());
+        t!(tmp.close());
+    }
+    assert!(!path.exists());
+
+    let path;
+    {
+        let tmp = t!(TempDir::new());
+        path = tmp.into_path();
+    }
+    assert!(path.exists());
+    t!(fs::remove_dir_all(&path));
+    assert!(!path.exists());
+}
+
+// Ideally these would be in std::os but then core would need
+// to depend on std
+fn recursive_mkdir_rel() {
+    let path = Path::new("frob");
+    let cwd = env::current_dir().unwrap();
+    println!(
+        "recursive_mkdir_rel: Making: {} in cwd {} [{}]",
+        path.display(),
+        cwd.display(),
+        path.exists()
+    );
+    t!(fs::create_dir(&path));
+    assert!(path.is_dir());
+    t!(fs::create_dir_all(&path));
+    assert!(path.is_dir());
+}
+
+fn recursive_mkdir_dot() {
+    let dot = Path::new(".");
+    t!(fs::create_dir_all(&dot));
+    let dotdot = Path::new("..");
+    t!(fs::create_dir_all(&dotdot));
+}
+
+fn recursive_mkdir_rel_2() {
+    let path = Path::new("./frob/baz");
+    let cwd = env::current_dir().unwrap();
+    println!(
+        "recursive_mkdir_rel_2: Making: {} in cwd {} [{}]",
+        path.display(),
+        cwd.display(),
+        path.exists()
+    );
+    t!(fs::create_dir_all(&path));
+    assert!(path.is_dir());
+    assert!(path.parent().unwrap().is_dir());
+    let path2 = Path::new("quux/blat");
+    println!(
+        "recursive_mkdir_rel_2: Making: {} in cwd {}",
+        path2.display(),
+        cwd.display()
+    );
+    t!(fs::create_dir("quux"));
+    t!(fs::create_dir_all(&path2));
+    assert!(path2.is_dir());
+    assert!(path2.parent().unwrap().is_dir());
+}
+
+// Ideally this would be in core, but needs TempFile
+pub fn test_remove_dir_all_ok() {
+    let tmpdir = t!(TempDir::new());
+    let tmpdir = tmpdir.path();
+    let root = tmpdir.join("foo");
+
+    println!("making {}", root.display());
+    t!(fs::create_dir(&root));
+    t!(fs::create_dir(&root.join("foo")));
+    t!(fs::create_dir(&root.join("foo").join("bar")));
+    t!(fs::create_dir(&root.join("foo").join("bar").join("blat")));
+    t!(fs::remove_dir_all(&root));
+    assert!(!root.exists());
+    assert!(!root.join("bar").exists());
+    assert!(!root.join("bar").join("blat").exists());
+}
+
+pub fn dont_double_panic() {
+    let r: Result<(), _> = thread::spawn(move || {
+        let tmpdir = TempDir::new().unwrap();
+        // Remove the temporary directory so that TempDir sees
+        // an error on drop
+        t!(fs::remove_dir(tmpdir.path()));
+        // Panic. If TempDir panics *again* due to the rmdir
+        // error then the process will abort.
+        panic!();
+    })
+    .join();
+    assert!(r.is_err());
+}
+
+fn in_tmpdir<F>(f: F)
+where
+    F: FnOnce(),
+{
+    let tmpdir = t!(TempDir::new());
+    assert!(env::set_current_dir(tmpdir.path()).is_ok());
+
+    f();
+}
+
+pub fn pass_as_asref_path() {
+    let tempdir = t!(TempDir::new());
+    takes_asref_path(&tempdir);
+
+    fn takes_asref_path<T: AsRef<Path>>(path: T) {
+        let path = path.as_ref();
+        assert!(path.exists());
+    }
+}
+
+#[test]
+fn main() {
+    in_tmpdir(test_tempdir);
+    in_tmpdir(test_rm_tempdir);
+    in_tmpdir(test_rm_tempdir_close);
+    in_tmpdir(recursive_mkdir_rel);
+    in_tmpdir(recursive_mkdir_dot);
+    in_tmpdir(recursive_mkdir_rel_2);
+    in_tmpdir(test_remove_dir_all_ok);
+    in_tmpdir(dont_double_panic);
+    in_tmpdir(pass_as_asref_path);
+}