75 lines
3.0 KiB
Java
75 lines
3.0 KiB
Java
/*
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* Copyright (c) 2019, Oracle and/or its affiliates. All rights reserved.
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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*
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* This code is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License version 2 only, as
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* published by the Free Software Foundation.
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*
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* This code is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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* version 2 for more details (a copy is included in the LICENSE file that
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* accompanied this code).
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*
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* You should have received a copy of the GNU General Public License version
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* 2 along with this work; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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*
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* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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* or visit www.oracle.com if you need additional information or have any
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* questions.
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*/
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/*
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* @test
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* @bug 8222430
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* @summary Test various predicates of ElementKind.
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*/
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import java.util.Set;
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import java.util.function.Predicate;
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import javax.lang.model.element.ElementKind;
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/**
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* Test the isClass, isField, and isInterface predicates of ElementKind.
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*/
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public class TestElementKindPredicates {
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public static void main(String... args) {
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Set<ElementKind> ALL_KINDS = Set.of(ElementKind.values());
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// isClass: Returns true if this is a kind of class: either CLASS or ENUM.
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test(ALL_KINDS,
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(ElementKind k) -> Set.of(ElementKind.CLASS,
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ElementKind.ENUM).contains(k),
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(ElementKind k) -> k.isClass(), "isClass");
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// isField: Returns true if this is a kind of field: either FIELD or ENUM_CONSTANT.
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test(ALL_KINDS,
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(ElementKind k) -> Set.of(ElementKind.FIELD,
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ElementKind.ENUM_CONSTANT).contains(k),
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(ElementKind k) -> k.isField(), "isField");
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// isInterface: Returns true if this is a kind of interface: either INTERFACE or ANNOTATION_TYPE.
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test(ALL_KINDS,
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(ElementKind k) -> Set.of(ElementKind.INTERFACE,
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ElementKind.ANNOTATION_TYPE).contains(k),
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(ElementKind k) -> k.isInterface(), "isInterface");
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}
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private static void test(Set<ElementKind> kinds,
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Predicate<ElementKind> expectedPred,
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Predicate<ElementKind> actualPred,
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String errorMessage) {
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for(ElementKind kind : kinds) {
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boolean expected = expectedPred.test(kind);
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boolean actual = actualPred.test(kind);
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if (expected != actual) {
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throw new RuntimeException("Error testing ElementKind." + errorMessage + "(" + kind +
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"):\texpected " + expected + "\tgot " + actual);
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}
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}
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}
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}
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