1 import jdk.incubator.code.Op;
 2 import jdk.incubator.code.Quotable;
 3 import jdk.incubator.code.Quoted;
 4 import org.junit.jupiter.api.Assertions;
 5 import org.junit.jupiter.api.Test;
 6 
 7 import java.util.List;
 8 import java.util.function.IntUnaryOperator;
 9 import java.util.stream.Stream;
10 
11 /*
12  * @test
13  * @modules jdk.incubator.code
14  * @run junit LambdaModelUniquenessTest
15  */
16 public class LambdaModelUniquenessTest {
17 
18     Quotable f() {
19         return (Runnable & Quotable) () -> {
20             System.out.println("Running...");
21         };
22     }
23 
24     @Test
25     public void testWithLambdaThatDoNotCapture() {
26         Quotable q1 = f();
27         Quotable q2 = f();
28         Quoted quoted1 = Op.ofQuotable(q1).orElseThrow();
29         Quoted quoted2 = Op.ofQuotable(q2).orElseThrow();
30         Assertions.assertSame(quoted1.op(), quoted2.op());
31     }
32 
33     @Test
34     public void testWithLambdaThatDoNotCapture2() {
35         Quotable q1 = f();
36         Quotable q2 = f();
37         List<Op> ops = Stream.of(q1, q2).parallel().map(q -> Op.ofQuotable(q).orElseThrow().op()).toList();
38         Assertions.assertSame(ops.getFirst(), ops.getLast());
39     }
40 
41     static Quotable g(int i) {
42         return (IntUnaryOperator & Quotable) j -> j + i;
43     }
44 
45     @Test
46     public void testWithLambdaThatCapture() {
47         Quotable q1 = g(1);
48         Quotable q2 = g(2);
49         Quoted quoted1 = Op.ofQuotable(q1).orElseThrow();
50         Quoted quoted2 = Op.ofQuotable(q2).orElseThrow();
51         Assertions.assertSame(quoted1.op(), quoted2.op());
52     }
53 
54     @Test
55     public void testWithLambdaThatCapture2() {
56         Quotable q1 = g(1);
57         Quotable q2 = g(2);
58         List<Op> ops = Stream.of(q1, q2).parallel().map(q -> Op.ofQuotable(q).orElseThrow().op()).toList();
59         Assertions.assertSame(ops.getFirst(), ops.getLast());
60     }
61 }