Global temporary directory

libbindgen/tests/tests.rs

@@ -1,13 +1,21 @@
+extern crate diff;
+#[macro_use]
+extern crate lazy_static;
 extern crate libbindgen;
 extern crate tempdir;
-extern crate diff;
 
 use std::env;
 use std::fs;
 use std::io::{BufReader, BufRead, Read};
 use std::path::{Path, PathBuf};
 use tempdir::TempDir;
 
+lazy_static! {
+    static ref TEMP_DIR: PathBuf = TempDir::new("libbindgen-tests")
+        .expect("Couldn't create temporary directory")
+        .into_path();
+}
+
 fn spawn_bindgen(header: &PathBuf, builder: libbindgen::Builder) -> Result<(), ()> {
     let file_name = header.file_name()
         .expect("spawn_bindgen expects a file");
@@ -131,6 +139,10 @@ fn run_bindgen_tests() {
 
     let num_failures = failures.len();
 
+    let temp_dir = TEMP_DIR.as_path();
+    fs::remove_dir_all(temp_dir)
+        .expect(format!("Couldn't clean up temporary directory: {:?}", temp_dir).as_str());
+
     if num_failures > 0 {
         panic!("{} test failures!", num_failures);
     }