LookupNameInPoolTest.java revision 12772:fbb9c8026495 
1/*
2 * Copyright (c) 2016, 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 8138708
27 * @requires vm.jvmci
28 * @library /test/lib /
29 * @library ../common/patches
30 * @modules java.base/jdk.internal.misc
31 *          java.base/jdk.internal.reflect
32 *          java.base/jdk.internal.org.objectweb.asm
33 *          java.base/jdk.internal.org.objectweb.asm.tree
34 *          jdk.internal.vm.ci/jdk.vm.ci.hotspot
35 *          jdk.internal.vm.ci/jdk.vm.ci.runtime
36 *          jdk.internal.vm.ci/jdk.vm.ci.meta
37 *
38 * @build jdk.internal.vm.ci/jdk.vm.ci.hotspot.CompilerToVMHelper
39 * @build sun.hotspot.WhiteBox
40 * @run driver ClassFileInstaller sun.hotspot.WhiteBox
41 *                                sun.hotspot.WhiteBox$WhiteBoxPermission
42 * @run main/othervm -Xbootclasspath/a:. -XX:+UnlockDiagnosticVMOptions
43 *                   -XX:+WhiteBoxAPI -XX:+UnlockExperimentalVMOptions -XX:+EnableJVMCI
44 *                   -Djvmci.Compiler=null
45 *                   compiler.jvmci.compilerToVM.LookupNameInPoolTest
46 */
47
48package compiler.jvmci.compilerToVM;
49
50import compiler.jvmci.compilerToVM.ConstantPoolTestCase.ConstantTypes;
51import compiler.jvmci.compilerToVM.ConstantPoolTestCase.TestedCPEntry;
52import compiler.jvmci.compilerToVM.ConstantPoolTestCase.Validator;
53import compiler.jvmci.compilerToVM.ConstantPoolTestsHelper.DummyClasses;
54import jdk.test.lib.Asserts;
55import jdk.vm.ci.hotspot.CompilerToVMHelper;
56import jdk.vm.ci.meta.ConstantPool;
57
58import java.util.HashMap;
59import java.util.Map;
60
61import static compiler.jvmci.compilerToVM.ConstantPoolTestCase.ConstantTypes.CONSTANT_FIELDREF;
62import static compiler.jvmci.compilerToVM.ConstantPoolTestCase.ConstantTypes.CONSTANT_INTERFACEMETHODREF;
63import static compiler.jvmci.compilerToVM.ConstantPoolTestCase.ConstantTypes.CONSTANT_INVOKEDYNAMIC;
64import static compiler.jvmci.compilerToVM.ConstantPoolTestCase.ConstantTypes.CONSTANT_METHODREF;
65
66/**
67 * Test for {@code jdk.vm.ci.hotspot.CompilerToVM.lookupNameInPool} method
68 */
69public class LookupNameInPoolTest {
70
71    public static void main(String[] args) throws Exception {
72        Map<ConstantTypes, Validator> typeTests = new HashMap<>();
73        typeTests.put(CONSTANT_METHODREF, LookupNameInPoolTest::validate);
74        typeTests.put(CONSTANT_INTERFACEMETHODREF, LookupNameInPoolTest::validate);
75        typeTests.put(CONSTANT_FIELDREF, LookupNameInPoolTest::validate);
76        typeTests.put(CONSTANT_INVOKEDYNAMIC, LookupNameInPoolTest::validate);
77        ConstantPoolTestCase testCase = new ConstantPoolTestCase(typeTests);
78        testCase.test();
79        // The next "Class.forName" and repeating "testCase.test()"
80        // are here for the following reason.
81        // The first test run is without dummy class initialization,
82        // which means no constant pool cache exists.
83        // The second run is with initialized class (with constant pool cache available).
84        // Some CompilerToVM methods require different input
85        // depending on whether CP cache exists or not.
86        for (DummyClasses dummy : DummyClasses.values()) {
87            Class.forName(dummy.klass.getName());
88        }
89        testCase.test();
90    }
91
92    private static void validate(ConstantPool constantPoolCTVM,
93                                 ConstantTypes cpType,
94                                 DummyClasses dummyClass,
95                                 int cpi) {
96        TestedCPEntry entry = cpType.getTestedCPEntry(dummyClass, cpi);
97        if (entry == null) {
98            return;
99        }
100        int index = cpi;
101        String cached = "";
102        int cpci = dummyClass.getCPCacheIndex(cpi);
103        if (cpci != ConstantPoolTestsHelper.NO_CP_CACHE_PRESENT) {
104            index = cpci;
105            cached = "cached ";
106        }
107        String nameToVerify = CompilerToVMHelper.lookupNameInPool(constantPoolCTVM, index);
108        String nameToRefer = entry.name;
109        String msg = String.format("Wrong name accessed by %sconstant pool index %d", cached, index);
110        Asserts.assertEQ(nameToVerify, nameToRefer, msg);
111    }
112}
113