76 lines
1.9 KiB
Java
76 lines
1.9 KiB
Java
/*
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* @test /nodynamiccopyright/
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* @bug 8206986
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* @summary Verify rule cases work properly.
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* @compile/fail/ref=SwitchStatementArrow-old.out --release 9 -XDrawDiagnostics SwitchStatementArrow.java
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* @compile SwitchStatementArrow.java
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* @run main SwitchStatementArrow
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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 SwitchStatementArrow {
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public static void main(String... args) {
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new SwitchStatementArrow().run();
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}
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private void run() {
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runTest(this::statement1);
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runTest(this::scope);
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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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try {
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print.apply(T.D);
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throw new AssertionError();
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} catch (IllegalStateException ex) {
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if (!Objects.equals("D", ex.getMessage()))
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throw new AssertionError(ex);
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}
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check(T.E, print, "other");
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}
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private String statement1(T t) {
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String res;
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switch (t) {
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case A -> { res = "A"; }
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case B, C -> res = "B-C";
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case D -> throw new IllegalStateException("D");
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default -> { res = "other"; break; }
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}
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return res;
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}
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private String scope(T t) {
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String res;
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switch (t) {
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case A -> { String r = "A"; res = r; }
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case B, C -> {String r = "B-C"; res = r; }
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case D -> throw new IllegalStateException("D");
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default -> { String r = "other"; res = r; break; }
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}
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return res;
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}
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private int r;
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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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