50 lines
1.3 KiB
Java
50 lines
1.3 KiB
Java
/*
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* @test /nodynamiccopyright/
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* @bug 8206986
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* @summary Verify cases with multiple labels work properly.
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* @compile/fail/ref=MultipleLabelsExpression-old.out --release 9 -XDrawDiagnostics MultipleLabelsExpression.java
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* @compile MultipleLabelsExpression.java
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* @run main MultipleLabelsExpression
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*/
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import java.util.Objects;
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import java.util.function.Function;
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public class MultipleLabelsExpression {
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public static void main(String... args) {
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new MultipleLabelsExpression().run();
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}
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private void run() {
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runTest(this::expression1);
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}
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private void runTest(Function<T, String> print) {
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check(T.A, print, "A");
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check(T.B, print, "B-C");
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check(T.C, print, "B-C");
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check(T.D, print, "D");
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check(T.E, print, "other");
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}
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private String expression1(T t) {
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return switch (t) {
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case A -> "A";
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case B, C -> { yield "B-C"; }
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case D -> "D";
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default -> "other";
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};
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}
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private void check(T t, Function<T, String> print, String expected) {
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String result = print.apply(t);
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if (!Objects.equals(result, expected)) {
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throw new AssertionError("Unexpected result: " + result);
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}
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}
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enum T {
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A, B, C, D, E;
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}
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}
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