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