1 files changed, 34 insertions, 0 deletions
diff --git a/library/std/src/sys_common/thread_local_key/tests.rs b/library/std/src/sys_common/thread_local_key/tests.rs
new file mode 100644
index 000000000..968738a41
--- /dev/null
+++ b/library/std/src/sys_common/thread_local_key/tests.rs
@@ -0,0 +1,34 @@
+use super::{Key, StaticKey};
+
+fn assert_sync<T: Sync>() {}
+fn assert_send<T: Send>() {}
+
+#[test]
+fn smoke() {
+    assert_sync::<Key>();
+    assert_send::<Key>();
+
+    let k1 = Key::new(None);
+    let k2 = Key::new(None);
+    assert!(k1.get().is_null());
+    assert!(k2.get().is_null());
+    k1.set(1 as *mut _);
+    k2.set(2 as *mut _);
+    assert_eq!(k1.get() as usize, 1);
+    assert_eq!(k2.get() as usize, 2);
+}
+
+#[test]
+fn statik() {
+    static K1: StaticKey = StaticKey::new(None);
+    static K2: StaticKey = StaticKey::new(None);
+
+    unsafe {
+        assert!(K1.get().is_null());
+        assert!(K2.get().is_null());
+        K1.set(1 as *mut _);
+        K2.set(2 as *mut _);
+        assert_eq!(K1.get() as usize, 1);
+        assert_eq!(K2.get() as usize, 2);
+    }
+}