1 /*
   2  * Copyright (c) 2018, 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.  Oracle designates this
   8  * particular file as subject to the "Classpath" exception as provided
   9  * by Oracle in the LICENSE file that accompanied this code.
  10  *
  11  * This code is distributed in the hope that it will be useful, but WITHOUT
  12  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  13  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  14  * version 2 for more details (a copy is included in the LICENSE file that
  15  * accompanied this code).
  16  *
  17  * You should have received a copy of the GNU General Public License version
  18  * 2 along with this work; if not, write to the Free Software Foundation,
  19  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  20  *
  21  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  22  * or visit www.oracle.com if you need additional information or have any
  23  * questions.
  24  */
  25 
  26 package java.lang.constant;
  27 
  28 import java.lang.invoke.*;
  29 import java.lang.constant.*;
  30 import java.util.*;
  31 
  32 import org.testng.annotations.Test;
  33 
  34 import static org.testng.Assert.*;
  35 
  36 /**
  37  * @test
  38  * @compile ConstantUtilsTest.java
  39  * @run testng ConstantUtilsTest
  40  * @summary unit tests for methods of java.lang.constant.ConstantUtils that are not covered by other unit tests
  41  */
  42 @Test
  43 public class ConstantUtilsTest {
  44     private static ClassDesc thisClass = ClassDesc.of("MethodHandleRefTest");
  45 
  46     public void testValidateMemberName() {
  47         try {
  48             ConstantUtils.validateMemberName(null);
  49             fail("");
  50         } catch (NullPointerException e) {
  51             // good
  52         }
  53 
  54         try {
  55             ConstantUtils.validateMemberName("");
  56             fail("");
  57         } catch (IllegalArgumentException e) {
  58             // good
  59         }
  60 
  61         List<String> badNames = List.of(".", ";", "[", "/", "<", ">");
  62         for (String n : badNames) {
  63             try {
  64                 ConstantUtils.validateMemberName(n);
  65                 fail(n);
  66             } catch (IllegalArgumentException e) {
  67                 // good
  68             }
  69         }
  70     }
  71 
  72     public void testSymbolizeHelper() {
  73         DirectMethodHandleDesc mh = MethodHandleDesc.of(DirectMethodHandleDesc.Kind.VIRTUAL, ConstantDescs.CR_String, "isEmpty", "()Z");
  74         try {
  75             ConstantUtils.symbolizeHelper(mh, null, "");
  76             fail("");
  77         } catch (NullPointerException e) {
  78             // good
  79         }
  80 
  81         try {
  82             ConstantUtils.symbolizeHelper(null, ConstantDescs.CR_ClassDesc, "");
  83             fail("");
  84         } catch (NullPointerException e) {
  85             // good
  86         }
  87 
  88         try {
  89             ConstantUtils.symbolizeHelper(null, null, "");
  90             fail("");
  91         } catch (NullPointerException e) {
  92             // good
  93         }
  94     }
  95 }