1 #![cfg(feature = "invocation")]
2 
3 mod util;
4 use util::{attach_current_thread, call_java_abs, jvm};
5 
6 #[test]
thread_attach_guard_detaches_on_drop()7 fn thread_attach_guard_detaches_on_drop() {
8     assert_eq!(jvm().threads_attached(), 0);
9     {
10         let mut guard = attach_current_thread();
11         assert_eq!(jvm().threads_attached(), 1);
12         let val = call_java_abs(&mut guard, -1);
13         assert_eq!(val, 1);
14     }
15     assert_eq!(jvm().threads_attached(), 0);
16     // Verify that this thread is really detached.
17     assert!(jvm().get_env().is_err());
18 }
19