LookupKlassInPoolTest.java revision 12651:6ef01bd40ce2 
1/*
2 * Copyright (c) 2015, 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 8136421
27 * @requires vm.jvmci
28 * @summary Testing compiler.jvmci.CompilerToVM.lookupKlassInPool method
29 * @library /test/lib /
30 * @library ../common/patches
31 * @modules java.base/jdk.internal.misc
32 *          java.base/jdk.internal.reflect
33 *          java.base/jdk.internal.org.objectweb.asm
34 *          java.base/jdk.internal.org.objectweb.asm.tree
35 *          jdk.internal.vm.ci/jdk.vm.ci.hotspot
36 *          jdk.internal.vm.ci/jdk.vm.ci.runtime
37 *          jdk.internal.vm.ci/jdk.vm.ci.meta
38 *
39 * @build jdk.internal.vm.ci/jdk.vm.ci.hotspot.CompilerToVMHelper sun.hotspot.WhiteBox
40 * @run driver ClassFileInstaller sun.hotspot.WhiteBox
41 *                                sun.hotspot.WhiteBox$WhiteBoxPermission
42 * @run main/othervm -Xbootclasspath/a:.
43 *                   -XX:+UnlockExperimentalVMOptions -XX:+EnableJVMCI
44 *                   -XX:+UnlockDiagnosticVMOptions -XX:+WhiteBoxAPI
45 *                   compiler.jvmci.compilerToVM.LookupKlassInPoolTest
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.vm.ci.hotspot.CompilerToVMHelper;
55import jdk.vm.ci.hotspot.HotSpotResolvedObjectType;
56import jdk.vm.ci.meta.ConstantPool;
57
58import java.util.HashMap;
59import java.util.Map;
60
61import static compiler.jvmci.compilerToVM.ConstantPoolTestCase.ConstantTypes.CONSTANT_CLASS;
62
63/**
64 * Test for {@code jdk.vm.ci.hotspot.CompilerToVM.lookupKlassInPool} method
65 */
66public class LookupKlassInPoolTest {
67
68    public static void main(String[] args) throws Exception  {
69        Map<ConstantTypes, Validator> typeTests = new HashMap<>();
70        typeTests.put(CONSTANT_CLASS, LookupKlassInPoolTest::validate);
71        ConstantPoolTestCase testCase = new ConstantPoolTestCase(typeTests);
72        testCase.test();
73        // The next "Class.forName" and repeating "testCase.test()"
74        // are here for the following reason.
75        // The first test run is without dummy class initialization,
76        // which means no constant pool cache exists.
77        // The second run is with initialized class (with constant pool cache available).
78        // Some CompilerToVM methods require different input
79        // depending on whether CP cache exists or not.
80        for (DummyClasses dummy : DummyClasses.values()) {
81            Class.forName(dummy.klass.getName());
82        }
83        testCase.test();
84    }
85
86    public static void validate(ConstantPool constantPoolCTVM,
87                                ConstantTypes cpType,
88                                DummyClasses dummyClass,
89                                int i) {
90        TestedCPEntry entry = cpType.getTestedCPEntry(dummyClass, i);
91        if (entry == null) {
92            return;
93        }
94        Object classToVerify = CompilerToVMHelper.lookupKlassInPool(constantPoolCTVM, i);
95        if (!(classToVerify instanceof HotSpotResolvedObjectType) && !(classToVerify instanceof String)) {
96            String msg = String.format("Output of method CTVM.lookupKlassInPool is neither"
97                                               + " a HotSpotResolvedObjectType, nor a String");
98            throw new AssertionError(msg);
99        }
100        String classNameToRefer = entry.klass;
101        String outputToVerify = classToVerify.toString();
102        if (!outputToVerify.contains(classNameToRefer)) {
103            String msg = String.format("Wrong class accessed by constant pool index %d: %s, but should be %s",
104                                       i,
105                                       outputToVerify,
106                                       classNameToRefer);
107            throw new AssertionError(msg);
108        }
109    }
110}
111