64 lines
2.3 KiB
Java
64 lines
2.3 KiB
Java
/*
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* Copyright (c) 2024, Oracle and/or its affiliates. All rights reserved.
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* Copyright (c) 2024, Alibaba Group Holding Limited. 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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import jdk.internal.access.JavaLangAccess;
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import jdk.internal.access.SharedSecrets;
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import java.nio.charset.StandardCharsets;
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import java.util.Arrays;
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/*
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* @test
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* @modules java.base/jdk.internal.access
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* @summary test latin1 String countNonZeroAscii
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* @run main/othervm -XX:+CompactStrings CountNonZeroAscii
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* @run main/othervm -XX:-CompactStrings CountNonZeroAscii
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*/
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public class CountNonZeroAscii {
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private static final JavaLangAccess JLA = SharedSecrets.getJavaLangAccess();
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public static void main(String [] args) {
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byte[] bytes = new byte[1000];
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Arrays.fill(bytes, (byte) 'A');
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String s = new String(bytes, StandardCharsets.ISO_8859_1);
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assertEquals(bytes.length, JLA.countNonZeroAscii(s));
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for (int i = 0; i < bytes.length; i++) {
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for (int j = Byte.MIN_VALUE; j <= 0; j++) {
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bytes[i] = (byte) j;
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s = new String(bytes, StandardCharsets.ISO_8859_1);
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assertEquals(i, JLA.countNonZeroAscii(s));
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}
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bytes[i] = (byte) 'A';
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}
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}
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static void assertEquals(int expected, int actual) {
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if (expected != actual) {
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throw new AssertionError("Expected " + expected + " but got " + actual);
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}
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}
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}
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