1 #![cfg(feature = "invocation")]
2
3 use jni::{errors::Error, objects::JValue};
4
5 mod util;
6 use util::{attach_current_thread, print_exception};
7
8 #[test]
test_java_integers()9 fn test_java_integers() {
10 let mut env = attach_current_thread();
11
12 let array_length = 50;
13
14 for value in -10..10 {
15 env.with_local_frame(16, |env| -> Result<_, Error> {
16 let integer_value =
17 env.new_object("java/lang/Integer", "(I)V", &[JValue::Int(value)])?;
18
19 let values_array =
20 env.new_object_array(array_length, "java/lang/Integer", &integer_value)?;
21
22 let result = env
23 .call_static_method(
24 "java/util/Arrays",
25 "binarySearch",
26 "([Ljava/lang/Object;Ljava/lang/Object;)I",
27 &[
28 JValue::Object(&values_array),
29 JValue::Object(&integer_value),
30 ],
31 )?
32 .i()?;
33
34 assert!(0 <= result && result < array_length);
35
36 Ok(())
37 })
38 .unwrap_or_else(|e| {
39 print_exception(&env);
40 panic!("{:#?}", e);
41 })
42 }
43 }
44