1 /*
   2  * Copyright (c) 2012, 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 /**
  25  * @test
  26  * @requires (os.simpleArch == "x64" | os.simpleArch == "sparcv9") & os.arch != "aarch64"
  27  * @compile TestResolvedJavaField.java FieldUniverse.java TypeUniverse.java TestMetaAccessProvider.java
  28  * @run junit/othervm -XX:+UnlockExperimentalVMOptions -XX:+EnableJVMCI jdk.vm.ci.runtime.test.TestResolvedJavaField
  29  */
  30 
  31 package jdk.vm.ci.runtime.test;
  32 
  33 import static org.junit.Assert.*;
  34 
  35 import java.lang.annotation.*;
  36 import java.lang.reflect.*;
  37 import java.util.*;
  38 
  39 import jdk.vm.ci.meta.*;
  40 
  41 import org.junit.*;
  42 
  43 /**
  44  * Tests for {@link ResolvedJavaField}.
  45  */
  46 public class TestResolvedJavaField extends FieldUniverse {
  47 
  48     public TestResolvedJavaField() {
  49     }
  50 
  51     @Test
  52     public void getModifiersTest() {
  53         for (Map.Entry<Field, ResolvedJavaField> e : fields.entrySet()) {
  54             int expected = e.getKey().getModifiers();
  55             int actual = e.getValue().getModifiers();
  56             assertEquals(expected, actual);
  57         }
  58     }
  59 
  60     @Test
  61     public void isSyntheticTest() {
  62         for (Map.Entry<Field, ResolvedJavaField> e : fields.entrySet()) {
  63             boolean expected = e.getKey().isSynthetic();
  64             boolean actual = e.getValue().isSynthetic();
  65             assertEquals(expected, actual);
  66         }
  67     }
  68 
  69     @Test
  70     public void getAnnotationsTest() {
  71         for (Map.Entry<Field, ResolvedJavaField> e : fields.entrySet()) {
  72             Annotation[] expected = e.getKey().getAnnotations();
  73             Annotation[] actual = e.getValue().getAnnotations();
  74             assertArrayEquals(expected, actual);
  75         }
  76     }
  77 
  78     @Test
  79     public void getAnnotationTest() {
  80         for (Map.Entry<Field, ResolvedJavaField> e : fields.entrySet()) {
  81             for (Annotation expected : e.getKey().getAnnotations()) {
  82                 if (expected != null) {
  83                     Annotation actual = e.getValue().getAnnotation(expected.annotationType());
  84                     assertEquals(expected, actual);
  85                 }
  86             }
  87         }
  88     }
  89 
  90     @Test
  91     public void getLocationIdentityTest() {
  92         for (Map.Entry<Field, ResolvedJavaField> e : fields.entrySet()) {
  93             LocationIdentity identity = e.getValue().getLocationIdentity();
  94             assertTrue(identity != null);
  95         }
  96     }
  97 
  98     static class ReadConstantValueTestConstants {
  99         String stringField = "field";
 100         final String constantStringField = "constantField";
 101 
 102         static final Object CONST1 = new ReadConstantValueTestConstants();
 103         static final Object CONST2 = null;
 104         static final Object CONST3 = new String();
 105     }
 106 
 107     @Test
 108     public void readConstantValueTest() throws NoSuchFieldException {
 109         ResolvedJavaField field = metaAccess.lookupJavaField(ReadConstantValueTestConstants.class.getDeclaredField("stringField"));
 110         List<ConstantValue> receiverConstants = readConstants(ReadConstantValueTestConstants.class);
 111         for (ConstantValue receiver : receiverConstants) {
 112             JavaConstant value = constantReflection.readConstantFieldValue(field, receiver.value);
 113             assertNull(value);
 114         }
 115 
 116         ResolvedJavaField constField = metaAccess.lookupJavaField(ReadConstantValueTestConstants.class.getDeclaredField("constantStringField"));
 117         for (ConstantValue receiver : receiverConstants) {
 118             JavaConstant value = constantReflection.readConstantFieldValue(constField, receiver.value);
 119             if (value != null) {
 120                 Object expected = "constantField";
 121                 String actual = ((ReadConstantValueTestConstants) receiver.boxed).constantStringField;
 122                 assertTrue(actual + " != " + expected, actual == expected);
 123             }
 124         }
 125     }
 126 
 127     private Method findTestMethod(Method apiMethod) {
 128         String testName = apiMethod.getName() + "Test";
 129         for (Method m : getClass().getDeclaredMethods()) {
 130             if (m.getName().equals(testName) && m.getAnnotation(Test.class) != null) {
 131                 return m;
 132             }
 133         }
 134         return null;
 135     }
 136 
 137     // @formatter:off
 138     private static final String[] untestedApiMethods = {
 139         "getDeclaringClass",
 140         "isInternal",
 141         "isFinal"
 142     };
 143     // @formatter:on
 144 
 145     /**
 146      * Ensures that any new methods added to {@link ResolvedJavaMethod} either have a test written
 147      * for them or are added to {@link #untestedApiMethods}.
 148      */
 149     @Test
 150     public void testCoverage() {
 151         Set<String> known = new HashSet<>(Arrays.asList(untestedApiMethods));
 152         for (Method m : ResolvedJavaField.class.getDeclaredMethods()) {
 153             if (m.isSynthetic()) {
 154                 continue;
 155             }
 156             if (findTestMethod(m) == null) {
 157                 assertTrue("test missing for " + m, known.contains(m.getName()));
 158             } else {
 159                 assertFalse("test should be removed from untestedApiMethods" + m, known.contains(m.getName()));
 160             }
 161         }
 162     }
 163 }