1/* Licensed to the Apache Software Foundation (ASF) under one or more
2 * contributor license agreements.  See the NOTICE file distributed with
3 * this work for additional information regarding copyright ownership.
4 * The ASF licenses this file to You under the Apache License, Version 2.0
5 * (the "License"); you may not use this file except in compliance with
6 * the License.  You may obtain a copy of the License at
7 *
8 *     http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 */
16package org.apache.harmony.tests.java.nio;
17
18import java.nio.ByteBuffer;
19import java.nio.ByteOrder;
20import java.nio.DirectByteBuffer;
21import java.nio.IntBuffer;
22import java.nio.NIOAccess;
23import libcore.io.SizeOf;
24
25public class DirectIntBufferTest extends IntBufferTest {
26    public void setUp(){
27        buf = ByteBuffer.allocateDirect(BUFFER_LENGTH*4).asIntBuffer();
28        loadTestData1(buf);
29        baseBuf = buf;
30    }
31
32    public void tearDown(){
33        buf = null;
34        baseBuf = null;
35    }
36
37    public void testHasArray() {
38        assertFalse(buf.hasArray());
39    }
40
41    public void testArray() {
42        try {
43            buf.array();
44            fail("Should throw UnsupportedOperationException"); //$NON-NLS-1$
45        } catch (UnsupportedOperationException e) {
46        }
47    }
48
49    public void testArrayOffset() {
50        try {
51            buf.arrayOffset();
52            fail("Should throw UnsupportedOperationException"); //$NON-NLS-1$
53        } catch (UnsupportedOperationException e) {
54            //expected
55        }
56    }
57
58    // http://b/28964300
59    public void testJNIAccessByAddress() throws Exception {
60        DirectByteBuffer directByteBuffer = (DirectByteBuffer) ByteBuffer.allocateDirect(10);
61        directByteBuffer.put((byte)'a');
62        IntBuffer intBuffer = directByteBuffer.asIntBuffer();
63        long byteBufferBasePointer = NIOAccess.getBasePointer(directByteBuffer);
64        long intBufferBasePointer = NIOAccess.getBasePointer(intBuffer);
65        assertEquals(byteBufferBasePointer, intBufferBasePointer);
66
67        // Check if the NIOAccess method adds up the current position value.
68        intBuffer.put(1);
69        assertEquals(intBufferBasePointer + SizeOf.INT, NIOAccess.getBasePointer(intBuffer));
70    }
71
72    public void testIsDirect() {
73        assertTrue(buf.isDirect());
74    }
75
76    public void testOrder() {
77        assertEquals(ByteOrder.BIG_ENDIAN, buf.order());
78    }
79}
80