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 (vm.simpleArch == "x64" | vm.simpleArch == "sparcv9" | vm.simpleArch == "aarch64")
27 * @library ../../../../../
28 * @modules jdk.vm.ci/jdk.vm.ci.meta
29 * jdk.vm.ci/jdk.vm.ci.runtime
30 * java.base/jdk.internal.misc
31 * @build jdk.vm.ci.runtime.test.TestConstantReflectionProvider
32 * @run junit/othervm -XX:+UnlockExperimentalVMOptions -XX:+EnableJVMCI jdk.vm.ci.runtime.test.TestConstantReflectionProvider
33 */
34
35 package jdk.vm.ci.runtime.test;
36
37 import static org.junit.Assert.assertEquals;
38 import static org.junit.Assert.assertFalse;
39 import static org.junit.Assert.assertNotNull;
40 import static org.junit.Assert.assertNull;
41 import static org.junit.Assert.assertTrue;
42
43 import java.lang.reflect.Array;
44 import java.util.List;
45
46 import jdk.vm.ci.meta.ConstantReflectionProvider;
47 import jdk.vm.ci.meta.JavaConstant;
48 import jdk.vm.ci.meta.JavaKind;
49
50 import org.junit.Test;
51
52 /**
53 * Tests for {@link ConstantReflectionProvider}. It assumes an implementation of the interface that
54 * actually returns non-null results for access operations that are possible, i.e., the tests will
55 * fail for an implementation that spuriously returns null (which is allowed by the specification).
56 */
57 public class TestConstantReflectionProvider extends TypeUniverse {
58
59 @Test
60 public void constantEqualsTest() {
61 for (ConstantValue c1 : constants()) {
62 for (ConstantValue c2 : constants()) {
63 // test symmetry
64 assertEquals(constantReflection.constantEquals(c1.value, c2.value), constantReflection.constantEquals(c2.value, c1.value));
65 if (c1.value.getJavaKind() != JavaKind.Object && c2.value.getJavaKind() != JavaKind.Object) {
66 assertEquals(c1.value.equals(c2.value), constantReflection.constantEquals(c2.value, c1.value));
67 }
68 }
69 }
70 }
71
72 @Test
73 public void readArrayLengthTest() {
74 for (ConstantValue cv : constants()) {
75 JavaConstant c = cv.value;
76 Integer actual = constantReflection.readArrayLength(c);
77 if (c.getJavaKind() != JavaKind.Object || c.isNull() || !cv.boxed.getClass().isArray()) {
78 assertNull(actual);
79 } else {
80 assertNotNull(actual);
81 int actualInt = actual;
82 assertEquals(Array.getLength(cv.boxed), actualInt);
83 }
84 }
85 }
86
87 static class PrimitiveConstants {
88 static final long LONG_CONST = 42;
89 static final int INT_CONST = 66;
90 static final byte BYTE_CONST = 123;
91 static final boolean BOOL_CONST = true;
92 }
93
94 static class BoxedConstants {
95 static final Long LONG_CONST = 42L;
96 static final Integer INT_CONST = 66;
97 static final Byte BYTE_CONST = 123;
98 static final Boolean BOOL_CONST = true;
99 }
100
101 @Test
102 public void boxTest() {
103 for (ConstantValue cv : constants()) {
104 JavaConstant c = cv.value;
105 JavaConstant boxed = constantReflection.boxPrimitive(c);
106 if (boxed != null && c.getJavaKind().isPrimitive()) {
107 assertTrue(boxed.getJavaKind().isObject());
108 assertFalse(boxed.isNull());
109 }
110 }
111
112 List<ConstantValue> primitiveConstants = readConstants(PrimitiveConstants.class);
113 List<ConstantValue> boxedConstants = readConstants(BoxedConstants.class);
114 for (int i = 0; i < primitiveConstants.size(); i++) {
115 ConstantValue prim = primitiveConstants.get(i);
116 ConstantValue box = boxedConstants.get(i);
117 assertEquals(box.value, constantReflection.boxPrimitive(prim.value));
118 }
119
120 assertNull(constantReflection.boxPrimitive(JavaConstant.NULL_POINTER));
121 }
122
123 @Test
124 public void unboxTest() {
125 for (ConstantValue cv : constants()) {
126 JavaConstant c = cv.value;
127 JavaConstant unboxed = c.isNull() ? null : constantReflection.unboxPrimitive(c);
128 if (unboxed != null) {
129 assertFalse(unboxed.getJavaKind().isObject());
130 }
131 }
132 List<ConstantValue> primitiveConstants = readConstants(PrimitiveConstants.class);
133 List<ConstantValue> boxedConstants = readConstants(BoxedConstants.class);
134 for (int i = 0; i < primitiveConstants.size(); i++) {
135 ConstantValue prim = primitiveConstants.get(i);
136 ConstantValue box = boxedConstants.get(i);
137 assert prim.getSimpleName().equals(box.getSimpleName());
138 assertEquals(prim.value, constantReflection.unboxPrimitive(box.value));
139 }
140
141 assertNull(constantReflection.unboxPrimitive(JavaConstant.NULL_POINTER));
142 }
143 }