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 package compiler.compilercontrol.share;
  25 
  26 import compiler.compilercontrol.share.method.MethodDescriptor;
  27 import compiler.compilercontrol.share.method.MethodGenerator;
  28 import jdk.test.lib.Pair;
  29 import pool.PoolHelper;
  30 
  31 import java.lang.reflect.Executable;
  32 import java.util.List;
  33 import java.util.concurrent.Callable;
  34 
  35 public 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()) {
  55             System.out.println("WARN: Using predefined pattern");
  56             md = MethodGenerator.commandDescriptor(exec);
  57         }
  58         return md;
  59     }
  60 }