1 /*
2 * Copyright (c) 2010, 2013, 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 jdk.nashorn.api.javaaccess.test;
27
28 import static org.testng.AssertJUnit.assertEquals;
29 import static org.testng.AssertJUnit.assertFalse;
30 import static org.testng.AssertJUnit.assertNull;
31 import static org.testng.AssertJUnit.assertTrue;
32 import java.util.Arrays;
33 import java.util.List;
34 import javax.script.ScriptContext;
35 import javax.script.ScriptEngine;
36 import javax.script.ScriptEngineManager;
37 import javax.script.ScriptException;
38 import org.testng.TestNG;
39 import org.testng.annotations.AfterClass;
40 import org.testng.annotations.BeforeClass;
41 import org.testng.annotations.Test;
42
43 /**
44 * @test
45 * @run testng/othervm jdk.nashorn.api.javaaccess.test.ArrayConversionTest
46 */
47 @SuppressWarnings("javadoc")
48 public class ArrayConversionTest {
49 private static ScriptEngine e = null;
50
51 public static void main(final String[] args) {
52 TestNG.main(args);
53 }
54
55 @BeforeClass
56 public static void setUpClass() {
57 e = new ScriptEngineManager().getEngineByName("nashorn");
58 }
59
60 @AfterClass
61 public static void tearDownClass() {
62 e = null;
63 }
64
65 @Test
66 public void testIntArrays() throws ScriptException {
67 runTest("assertNullIntArray", "null");
68 runTest("assertEmptyIntArray", "[]");
69 runTest("assertSingle42IntArray", "[42]");
70 runTest("assertSingle42IntArray", "['42']");
71 runTest("assertIntArrayConversions", "[false, true, NaN, Infinity, -Infinity, 0.4, 0.6, null, undefined, [], {}, [1], [1, 2]]");
72 }
73
74 @Test
75 public void testIntIntArrays() throws ScriptException {
76 runTest("assertNullIntIntArray", "null");
77 runTest("assertEmptyIntIntArray", "[]");
78 runTest("assertSingleEmptyIntIntArray", "[[]]");
79 runTest("assertSingleNullIntIntArray", "[null]");
80 runTest("assertLargeIntIntArray", "[[false], [1], [2, 3], [4, 5, 6], ['7', {valueOf: function() { return 8 }}]]");
81 }
82
83 @Test
84 public void testObjectObjectArrays() throws ScriptException {
85 runTest("assertLargeObjectObjectArray", "[[false], [1], ['foo', 42.3], [{x: 17}]]");
86 }
87
88 @Test
89 public void testBooleanArrays() throws ScriptException {
90 runTest("assertBooleanArrayConversions", "[false, true, '', 'false', 0, 1, 0.4, 0.6, {}, [], [false], [true], NaN, Infinity, null, undefined]");
91 }
92
93 @Test
94 public void testArrayAmbiguity() throws ScriptException {
95 runTest("x", "'abc'");
96 runTest("x", "['foo', 'bar']");
97 }
98
99 @Test
100 public void testListArrays() throws ScriptException {
101 runTest("assertListArray", "[['foo', 'bar'], ['apple', 'orange']]");
102 }
103
104 @Test
105 public void testVarArgs() throws ScriptException {
106 // Sole NativeArray in vararg position becomes vararg array itself
107 runTest("assertVarArgWith42And17", "[42, 17]");
108 // NativeArray in vararg position becomes an argument if there are more arguments
109 runTest("assertVarArgArray7", "[42], 18");
110 // Only NativeArray is converted to vararg array, other objects (e.g. a function) aren't
111 runTest("assertVarArgFunction", "function() { return 'Hello' }");
112 }
113
114 private static void runTest(final String testMethodName, final String argument) throws ScriptException {
115 e.eval("Java.type('" + ArrayConversionTest.class.getName() + "')." + testMethodName + "(" + argument + ")");
116 }
117
118 public static void assertNullIntArray(final int[] array) {
119 assertNull(array);
120 }
121
122 public static void assertNullIntIntArray(final int[][] array) {
123 assertNull(array);
124 }
125
126 public static void assertEmptyIntArray(final int[] array) {
127 assertEquals(0, array.length);
128 }
129
130 public static void assertSingle42IntArray(final int[] array) {
131 assertEquals(1, array.length);
132 assertEquals(42, array[0]);
133 }
134
135
136 public static void assertIntArrayConversions(final int[] array) {
137 assertEquals(13, array.length);
138 assertEquals(0, array[0]); // false
139 assertEquals(1, array[1]); // true
140 assertEquals(0, array[2]); // NaN
141 assertEquals(0, array[3]); // Infinity
142 assertEquals(0, array[4]); // -Infinity
143 assertEquals(0, array[5]); // 0.4
144 assertEquals(0, array[6]); // 0.6 - floor, not round
145 assertEquals(0, array[7]); // null
146 assertEquals(0, array[8]); // undefined
147 assertEquals(0, array[9]); // []
148 assertEquals(0, array[10]); // {}
149 assertEquals(1, array[11]); // [1]
150 assertEquals(0, array[12]); // [1, 2]
151 }
152
153 public static void assertEmptyIntIntArray(final int[][] array) {
154 assertEquals(0, array.length);
155 }
156
157 public static void assertSingleEmptyIntIntArray(final int[][] array) {
158 assertEquals(1, array.length);
159 assertTrue(Arrays.equals(new int[0], array[0]));
160 }
161
162 public static void assertSingleNullIntIntArray(final int[][] array) {
163 assertEquals(1, array.length);
164 assertNull(null, array[0]);
165 }
166
167 public static void assertLargeIntIntArray(final int[][] array) {
168 assertEquals(5, array.length);
169 assertTrue(Arrays.equals(new int[] { 0 }, array[0]));
170 assertTrue(Arrays.equals(new int[] { 1 }, array[1]));
171 assertTrue(Arrays.equals(new int[] { 2, 3 }, array[2]));
172 assertTrue(Arrays.equals(new int[] { 4, 5, 6 }, array[3]));
173 assertTrue(Arrays.equals(new int[] { 7, 8 }, array[4]));
174 }
175
176 public static void assertLargeObjectObjectArray(final Object[][] array) throws ScriptException {
177 assertEquals(4, array.length);
178 assertTrue(Arrays.equals(new Object[] { Boolean.FALSE }, array[0]));
179 assertTrue(Arrays.equals(new Object[] { 1 }, array[1]));
180 assertTrue(Arrays.equals(new Object[] { "foo", 42.3d }, array[2]));
181 assertEquals(1, array[3].length);
182 e.getBindings(ScriptContext.ENGINE_SCOPE).put("obj", array[3][0]);
183 assertEquals(17, e.eval("obj.x"));
184 }
185
186 public static void assertBooleanArrayConversions(final boolean[] array) {
187 assertEquals(16, array.length);
188 assertFalse(array[0]); // false
189 assertTrue(array[1]); // true
190 assertFalse(array[2]); // ''
191 assertTrue(array[3]); // 'false' (yep, every non-empty string converts to true)
192 assertFalse(array[4]); // 0
193 assertTrue(array[5]); // 1
194 assertTrue(array[6]); // 0.4
195 assertTrue(array[7]); // 0.6
196 assertTrue(array[8]); // {}
197 assertTrue(array[9]); // []
198 assertTrue(array[10]); // [false]
199 assertTrue(array[11]); // [true]
200 assertFalse(array[12]); // NaN
201 assertTrue(array[13]); // Infinity
202 assertFalse(array[14]); // null
203 assertFalse(array[15]); // undefined
204 }
205
206 public static void assertListArray(final List<?>[] array) {
207 assertEquals(2, array.length);
208 assertEquals(Arrays.asList("foo", "bar"), array[0]);
209 assertEquals(Arrays.asList("apple", "orange"), array[1]);
210 }
211
212 public static void assertVarArgWith42And17(final Object... args) {
213 assertEquals(2, args.length);
214 assertEquals(42, ((Number)args[0]).intValue());
215 assertEquals(17, ((Number)args[1]).intValue());
216 }
217
218 public static void assertVarArgArray7(final Object... args) throws ScriptException {
219 assertEquals(2, args.length);
220 e.getBindings(ScriptContext.ENGINE_SCOPE).put("arr", args[0]);
221 assertTrue((Boolean)e.eval("arr instanceof Array && arr.length == 1 && arr[0] == 42"));
222 assertEquals(18, ((Number)args[1]).intValue());
223 }
224
225 public static void assertVarArgFunction(final Object... args) throws ScriptException {
226 assertEquals(1, args.length);
227 e.getBindings(ScriptContext.ENGINE_SCOPE).put("fn", args[0]);
228 assertEquals("Hello", e.eval("fn()"));
229 }
230
231
232
233 public static void x(final String y) {
234 assertEquals("abc", y);
235 }
236 public static void x(final String[] y) {
237 assertTrue(Arrays.equals(new String[] { "foo", "bar"}, y));
238 }
239 }