AbstractTestBase.java revision 11833:1cbffa2beba6 
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
24package compiler.compilercontrol.share;
25
26import compiler.compilercontrol.share.method.MethodDescriptor;
27import compiler.compilercontrol.share.method.MethodGenerator;
28import compiler.compilercontrol.share.pool.PoolHelper;
29import jdk.test.lib.util.Pair;
30
31import java.lang.reflect.Executable;
32import java.util.List;
33import java.util.concurrent.Callable;
34
35public abstract class AbstractTestBase {
36    protected static final MethodGenerator METHOD_GEN = new MethodGenerator();
37    protected static final int ATTEMPTS = 25;
38    protected static final List<Pair<Executable, Callable<?>>> METHODS
39            = new PoolHelper().getAllMethods(PoolHelper.METHOD_FILTER);
40
41    public abstract void test();
42
43    /**
44     * Generate random valid method descriptor
45     *
46     * @param exec method to make descriptor for
47     * @return a valid {@link MethodDescriptor#isValid()} descriptor instance
48     */
49    public static MethodDescriptor getValidMethodDescriptor(Executable exec) {
50        MethodDescriptor md = METHOD_GEN.generateRandomDescriptor(exec);
51        for (int i = 0; !md.isValid() && i < ATTEMPTS; i++) {
52            md = METHOD_GEN.generateRandomDescriptor(exec);
53        }
54        if (!md.isValid() || "any.method()".matches(md.getRegexp())) {
55            /* if we haven't got a valid pattern or it matches any method
56               leading to timeouts, then use plain standard descriptor */
57            md = MethodGenerator.commandDescriptor(exec);
58        }
59        return md;
60    }
61}
62