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products/sources/formale Sprachen/Java/Openjdk/test/langtools/jdk/jshell/ (Sun/Oracle ^©) Datei vom 13.11.2022 mit Größe 3 kB

Quelle SealedClassesTest.java Sprache: JAVA

/*
* Copyright (c) 2020, 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.
*/

/*
* @test
* @bug 8246353 8273257
* @summary Test sealed class in jshell
* @modules jdk.jshell
* @build KullaTesting TestingInputStream ExpectedDiagnostic
* @run testng SealedClassesTest
*/

import javax.lang.model.SourceVersion;

import jdk.jshell.TypeDeclSnippet;
import jdk.jshell.Snippet.Status;

import org.testng.annotations.BeforeMethod;
import org.testng.annotations.Test;

import static jdk.jshell.Snippet.Status.VALID;

@Test
public class SealedClassesTest extends KullaTesting {

    public void testSealed() {
        TypeDeclSnippet base = classKey(
                assertEval("sealed class B permits I {}",
                           ste(MAIN_SNIPPET, Status.NONEXISTENT, Status.RECOVERABLE_NOT_DEFINED, false, null)));
        assertEval("final class I extends B {}",
                   added(VALID),
                   ste(base, Status.RECOVERABLE_NOT_DEFINED, Status.VALID, true, null));
        assertEval("new I()");
    }

    public void testInterface() {
        TypeDeclSnippet base = classKey(
                assertEval("sealed interface I permits C {}",
                           ste(MAIN_SNIPPET, Status.NONEXISTENT, Status.RECOVERABLE_NOT_DEFINED, false, null)));
        assertEval("final class C implements I {}",
                   added(VALID),
                   ste(base, Status.RECOVERABLE_NOT_DEFINED, Status.VALID, true, null));
        assertEval("new C()");
    }

    public void testNonSealed() {
        TypeDeclSnippet base = classKey(
                assertEval("sealed class B permits I {}",
                           ste(MAIN_SNIPPET, Status.NONEXISTENT, Status.RECOVERABLE_NOT_DEFINED, false, null)));
        assertEval("non-sealed class I extends B {}",
                   added(VALID),
                   ste(base, Status.RECOVERABLE_NOT_DEFINED, Status.VALID, true, null));
        assertEval("class I2 extends I {}");
        assertEval("new I2()");
    }

    public void testNonSealedInterface() {
        TypeDeclSnippet base = classKey(
                assertEval("sealed interface B permits C {}",
                           ste(MAIN_SNIPPET, Status.NONEXISTENT, Status.RECOVERABLE_NOT_DEFINED, false, null)));
        assertEval("non-sealed class C implements B {}",
                   added(VALID),
                   ste(base, Status.RECOVERABLE_NOT_DEFINED, Status.VALID, true, null));
        assertEval("class C2 extends C {}");
        assertEval("new C2()");
    }
}

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