1 /* 2 * Copyright (c) 2019, Oracle and/or its affiliates. All rights reserved. 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 4 * 5 * This code is free software; you can redistribute it and/or modify it 6 * under the terms of the GNU General Public License version 2 only, as 7 * published by the Free Software Foundation. 8 * 9 * This code is distributed in the hope that it will be useful, but WITHOUT 10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 12 * version 2 for more details (a copy is included in the LICENSE file that 13 * accompanied this code). 14 * 15 * You should have received a copy of the GNU General Public License version 16 * 2 along with this work; if not, write to the Free Software Foundation, 17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 18 * 19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 20 * or visit www.oracle.com if you need additional information or have any 21 * questions. 22 */ 23 24 25 package org.graalvm.compiler.replacements.test; 26 27 import org.graalvm.compiler.core.test.GraalCompilerTest; 28 import org.junit.Test; 29 30 // JDK-8228903 31 public final class StringCompareToAVX512Test extends GraalCompilerTest { 32 33 public static int compareTo(String str1, String str2) { 34 return str1.compareTo(str2); 35 } 36 37 @Test 38 public void testLatin1VsUtf16BadStride() { 39 String latin1 = "000000001111111122222222333333334444444455555555666666667777777\u0099888888889"; 40 String utf16 = "000000001111111122222222333333334444444455555555666666667777777\u0699888888889"; 41 test("compareTo", latin1, utf16); 42 test("compareTo", utf16, latin1); 43 } 44 45 @Test 46 public void testLatin1VsUtf16BadStride2() { 47 String latin1 = "00000000111111112222222233333333444444445555555566666666777777778888888\u008799999999AAAAAAAAB"; 48 String utf16 = "00000000111111112222222233333333444444445555555566666666777777778888888\u058799999999AAAAAAAAB"; 49 test("compareTo", latin1, utf16); 50 test("compareTo", utf16, latin1); 51 } 52 53 @Test 54 public void testLatin1VsUtf16FalseEquality() { 55 // java.lang.AssertionError: expected:<-1536> but was:<0> 56 String latin1 = "00000000111111112222222233333333\u0099444444455555555"; 57 String utf16 = "00000000111111112222222233333333\u0699xxxxxxxxxxxxxxx"; 58 test("compareTo", latin1, utf16); 59 test("compareTo", utf16, latin1); 60 } 61 62 @Test 63 public void testLatin1BeyondRange() { 64 StringBuilder latin1Builder = new StringBuilder(); 65 for (int j = 0; j <= 255; ++j) { 66 latin1Builder.append((char) j); 67 } 68 String latin1 = latin1Builder.toString(); 69 test("compareTo", latin1, String.valueOf(latin1.toCharArray())); 70 } 71 }