1 /* 2 * Copyright (c) 2015, 2017, 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 import org.testng.annotations.DataProvider; 25 import org.testng.annotations.Test; 26 27 import static jdk.test.lib.util.SerializationUtils.*; 28 import static org.testng.Assert.assertEquals; 29 30 /* 31 * @test 32 * @bug 8077559 33 * @library /test/lib 34 * @build jdk.test.lib.util.SerializationUtils 35 * @summary Tests Compact String. This one is testing String serialization 36 * among -XX:+CompactStrings/-XX:-CompactStrings/LegacyString 37 * @run testng/othervm -XX:+CompactStrings SerializationTest 38 * @run testng/othervm -XX:-CompactStrings SerializationTest 39 */ 40 41 public class SerializationTest { 42 @DataProvider provider()43 public Object[][] provider() { 44 return new Object[][] { 45 // every byte array is serialized from corresponding String object 46 // by previous JDK(build 1.8.0_45-b14). 47 new Object[] { "", new byte[] { -84, -19, 0, 5, 116, 0, 0 } }, 48 new Object[] { "A", new byte[] { -84, -19, 0, 5, 116, 0, 1, 65 } }, 49 new Object[] { "AB", new byte[] { -84, -19, 0, 5, 116, 0, 2, 65, 66 } }, 50 new Object[] { "abcdefghijk", 51 new byte[] {-84, -19, 0, 5, 116, 0, 11, 97, 98, 99, 100, 101, 52 102, 103, 104, 105, 106, 107 } }, 53 new Object[] { "\uff21", new byte[] { -84, -19, 0, 5, 116, 0, 3, -17, -68, -95 } }, 54 new Object[] { "\uff21\uff22", new byte[] { -84, -19, 0, 5, 116, 0, 6, -17, -68, 55 -95, -17, -68, -94 } }, 56 new Object[] { "\uff21A\uff21A\uff21A\uff21A\uff21A", 57 new byte[] { -84, -19, 0, 5, 116, 0, 20, -17, -68, -95, 65, -17, -68, 58 -95, 65, -17, -68, -95, 65, -17, -68, -95, 65, -17, -68, -95, 65 } }, 59 new Object[] { "A\uff21B\uff22C\uff23D\uff24E\uff25F\uff26G\uff27H\uff28", 60 new byte[] { -84, -19, 0, 5, 116, 0, 32, 65, -17, -68, -95, 66, -17, -68, 61 -94, 67, -17, -68, -93, 68, -17, -68, -92, 69, -17, -68, -91, 70, -17, 62 -68, -90, 71, -17, -68, -89, 72, -17, -68, -88 } }, 63 new Object[] { "\uff21A\uff22B\uff23C\uff24D\uff25E\uff26F\uff27G\uff28H", 64 new byte[] { -84, -19, 0, 5, 116, 0, 32, -17, -68, -95, 65, -17, -68, 65 -94, 66, -17, -68, -93, 67, -17, -68, -92, 68, -17, -68, -91, 69, -17, 66 -68, -90, 70, -17, -68, -89, 71, -17, -68, -88, 72 } }, 67 new Object[] { "\ud801\udc00\ud801\udc01\uff21A", 68 new byte[] { -84, -19, 0, 5, 116, 0, 16, -19, -96, -127, -19, -80, -128, 69 -19, -96, -127, -19, -80, -127, -17, -68, -95, 65 } }, 70 new Object[] { "\uff21\uff22\uff21\uff22\uff21\uff22\uff21\uff22\uff21\uff22", 71 new byte[] { -84, -19, 0, 5, 116, 0, 30, -17, -68, -95, -17, -68, -94, -17, 72 -68, -95, -17, -68, -94, -17, -68, -95, -17, -68, -94, -17, -68, -95, -17, 73 -68, -94, -17, -68, -95, -17, -68, -94 } } }; 74 } 75 76 /* 77 * Verify serialization works between Compact String/Legacy String 78 */ 79 @Test(dataProvider = "provider") test(String strContent, byte[] baInJDK8)80 public void test(String strContent, byte[] baInJDK8) throws Exception { 81 // Serialize a String object into byte array. 82 byte[] ba = serialize(strContent); 83 assertEquals(ba, baInJDK8); 84 // Deserialize a String object from byte array which is generated by previous JDK(build 1.8.0_45-b14). 85 Object obj = deserialize(ba); 86 assertEquals(obj.getClass(), String.class); 87 assertEquals((String)obj, strContent); 88 } 89 } 90