jdk/test/sun/reflect/constantPool/ConstantPoolTest.java
changeset 37377 bd3b98a11a14
parent 37376 5daa5fbad3ce
parent 37374 ee1b8619eddb
child 37380 55c2549714af
equal deleted inserted replaced
37376:5daa5fbad3ce 37377:bd3b98a11a14
     1 /*
       
     2  * Copyright (c) 2015, 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  * @test
       
    26  * @bug 8141615
       
    27  * @summary Tests new public methods at sun.reflect.ConstantPool
       
    28  * @modules java.base/jdk.internal.misc
       
    29  *          java.base/sun.reflect
       
    30  * @library /lib/testlibrary
       
    31  * @compile ConstantPoolTestDummy.jasm
       
    32  * @run main sun.reflect.constantPool.ConstantPoolTest
       
    33  */
       
    34 
       
    35 package sun.reflect.constantPool;
       
    36 
       
    37 import java.util.HashMap;
       
    38 import java.util.Map;
       
    39 import jdk.internal.misc.SharedSecrets;
       
    40 import jdk.testlibrary.Asserts;
       
    41 import sun.reflect.ConstantPool;
       
    42 
       
    43 public class ConstantPoolTest {
       
    44 
       
    45     private static final Class<?> TEST_CLASS = ConstantPoolTestDummy.class;
       
    46     private static final ConstantPool CP = SharedSecrets.getJavaLangAccess()
       
    47             .getConstantPool(TEST_CLASS);
       
    48 
       
    49     public static void main(String[] s) {
       
    50         for (TestCase testCase : TestCase.values()) {
       
    51             testCase.test();
       
    52         }
       
    53     }
       
    54 
       
    55     public static enum TestCase {
       
    56         GET_TAG_AT {
       
    57             {
       
    58                 referenceMap.put(1, ConstantPool.Tag.METHODREF);
       
    59                 referenceMap.put(2, ConstantPool.Tag.CLASS);
       
    60                 referenceMap.put(4, ConstantPool.Tag.UTF8);
       
    61                 referenceMap.put(10, ConstantPool.Tag.NAMEANDTYPE);
       
    62                 referenceMap.put(13, ConstantPool.Tag.LONG);
       
    63                 referenceMap.put(15, ConstantPool.Tag.INTEGER);
       
    64                 referenceMap.put(16, ConstantPool.Tag.INTERFACEMETHODREF);
       
    65                 referenceMap.put(21, ConstantPool.Tag.DOUBLE);
       
    66                 referenceMap.put(23, ConstantPool.Tag.STRING);
       
    67                 referenceMap.put(25, ConstantPool.Tag.INVOKEDYNAMIC);
       
    68                 referenceMap.put(29, ConstantPool.Tag.METHODHANDLE);
       
    69                 referenceMap.put(30, ConstantPool.Tag.METHODTYPE);
       
    70                 referenceMap.put(48, ConstantPool.Tag.FIELDREF);
       
    71                 referenceMap.put(52, ConstantPool.Tag.FLOAT);
       
    72             }
       
    73             @Override
       
    74             void testIndex(int cpi, Object reference) {
       
    75                 ConstantPool.Tag tagToVerify = CP.getTagAt(cpi);
       
    76                 ConstantPool.Tag tagToRefer = (ConstantPool.Tag) reference;
       
    77                 String msg = String.format("Method getTagAt works not as expected"
       
    78                         + "at CP entry #%d: got CP tag %s, but should be %s",
       
    79                         cpi, tagToVerify.name(), tagToRefer.name());
       
    80                 Asserts.assertEquals(tagToVerify, tagToRefer, msg);
       
    81             }
       
    82         },
       
    83         GET_CLASS_REF_INDEX_AT {
       
    84             {
       
    85                 referenceMap.put(1, 3);
       
    86                 referenceMap.put(16, 17);
       
    87                 referenceMap.put(32, 35);
       
    88                 referenceMap.put(34, 3);
       
    89                 referenceMap.put(48, 2);
       
    90             }
       
    91             @Override
       
    92             void testIndex(int cpi, Object reference) {
       
    93                 int indexToVerify = CP.getClassRefIndexAt(cpi);
       
    94                 int indexToRefer = (int) reference;
       
    95                 String msg = String.format("Method getClassRefIndexAt works not"
       
    96                         + " as expected at CP entry #%d:"
       
    97                         + " got index %d, but should be %d",
       
    98                         cpi, indexToVerify, indexToRefer);
       
    99                 Asserts.assertEquals(indexToVerify, indexToRefer, msg);
       
   100             }
       
   101         },
       
   102         GET_NAME_AND_TYPE_REF_INDEX_AT {
       
   103             {
       
   104                 referenceMap.put(1, 10);
       
   105                 referenceMap.put(16, 18);
       
   106                 referenceMap.put(25, 26);
       
   107                 referenceMap.put(32, 36);
       
   108                 referenceMap.put(34, 37);
       
   109                 referenceMap.put(48, 49);
       
   110             }
       
   111             @Override
       
   112             void testIndex(int cpi, Object reference) {
       
   113                 int indexToRefer = (int) reference;
       
   114                 int indexToVerify = CP.getNameAndTypeRefIndexAt(cpi);
       
   115                 String msg = String.format("Method getNameAndTypeRefIndexAt works"
       
   116                         + " not as expected at CP entry #%d:"
       
   117                         + " got index %d, but should be %d",
       
   118                         cpi, indexToVerify, indexToRefer);
       
   119                 Asserts.assertEquals(indexToVerify, indexToRefer, msg);
       
   120             }
       
   121         },
       
   122         GET_NAME_AND_TYPE_REF_INFO_AT {
       
   123             {
       
   124                 referenceMap.put(10, new String[]{"<init>", "()V"});
       
   125                 referenceMap.put(18, new String[]{"run", "()V"});
       
   126                 referenceMap.put(26, new String[]{"accept", "()Ljava/util/function/Consumer;"});
       
   127                 referenceMap.put(36, new String[]{"metafactory",
       
   128                         "(Ljava/lang/invoke/MethodHandles$Lookup;"
       
   129                         + "Ljava/lang/String;Ljava/lang/invoke/MethodType;"
       
   130                         + "Ljava/lang/invoke/MethodType;Ljava/lang/invoke/MethodHandle;"
       
   131                         + "Ljava/lang/invoke/MethodType;)Ljava/lang/invoke/CallSite;"});
       
   132                 referenceMap.put(37, new String[]{"toString", "()Ljava/lang/String;"});
       
   133                 referenceMap.put(49, new String[]{"myField", "I"});
       
   134             }
       
   135             @Override
       
   136             void testIndex(int cpi, Object reference) {
       
   137                 String[] natInfo = CP.getNameAndTypeRefInfoAt(cpi);
       
   138                 String msg = String.format("Method getNameAndTypeRefInfoAt"
       
   139                         + " works not as expected at CP entry #%d:"
       
   140                         + " returned value should not be null", cpi);
       
   141                 Asserts.assertNotNull(natInfo, msg);
       
   142                 String[] castedReference = (String[]) reference;
       
   143                 int natInfoLength = natInfo.length;
       
   144                 msg = String.format("Method getNameAndTypeRefInfoAt"
       
   145                         + " works not as expected at CP entry #%d:"
       
   146                         + " length of the returned string array is %d, but should be 2",
       
   147                         cpi, natInfoLength);
       
   148                 Asserts.assertEquals(natInfoLength, 2, msg);
       
   149                 String[] nameOrType = new String[]{"name", "type"};
       
   150                 for (int i = 0; i < 2; i++) {
       
   151                     String infoToVerify = natInfo[i];
       
   152                     String infoToRefer = castedReference[i];
       
   153                     msg = String.format("Method getNameAndTypeRefInfoAt"
       
   154                             + " works not as expected at CP entry #%d:"
       
   155                             + " got %s info %s, but should be %s",
       
   156                             cpi, nameOrType[i], infoToVerify, infoToRefer);
       
   157                     Asserts.assertEquals(infoToVerify, infoToRefer, msg);
       
   158                 }
       
   159             }
       
   160         };
       
   161 
       
   162         protected final Map<Integer, Object> referenceMap;
       
   163         TestCase() {
       
   164             this.referenceMap = new HashMap<>();
       
   165         }
       
   166         abstract void testIndex(int cpi, Object reference);
       
   167         public void test() {
       
   168             referenceMap.forEach(this::testIndex);
       
   169         }
       
   170     }
       
   171 }