/*

 * @test /nodynamiccopyright/

 * @bug 8206986

 * @summary Verify cases with multiple labels work properly.

 * @compile/fail/ref=MultipleLabelsExpression-old.out -source 9 -Xlint:-options -XDrawDiagnostics MultipleLabelsExpression.java

 */

import java.util.Objects;

import java.util.function.Function;

public class MultipleLabelsExpression {

    public static void main(String... args) {

        new MultipleLabelsExpression().run();

    }

    private void run() {

        runTest(this::expression1);

    }

    private void runTest(Function<T, String> print) {

        check(T.A,  print, "A");

        check(T.B,  print, "B-C");

        check(T.C,  print, "B-C");

        check(T.D,  print, "D");

        check(T.E,  print, "other");

    }

    private String expression1(T t) {

        return switch (t) {

            case A -> "A";

            case B, C -> { yield "B-C"; }

            case D -> "D";

            default -> "other";

        };

    }

    private void check(T t, Function<T, String> print, String expected) {

        String result = print.apply(t);

        if (!Objects.equals(result, expected)) {

            throw new AssertionError("Unexpected result: " + result);

        }

    }

    enum T {

        A, B, C, D, E;

    }

}