DirectByteBufferTest.java revision e5fea3d504609d22337a5311d3ce0e72314bceee 
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;
19
20public class DirectByteBufferTest extends ByteBufferTest {
21
22    protected void setUp() throws Exception {
23        super.setUp();
24        buf = ByteBuffer.allocateDirect(BUFFER_LENGTH);
25        baseBuf = buf;
26    }
27
28    protected void tearDown() throws Exception {
29        super.tearDown();
30        buf = null;
31        baseBuf = null;
32    }
33
34    /**
35     * @tests java.nio.ByteBuffer#allocateDirect(int)
36     *
37     */
38    public void testAllocatedByteBuffer_IllegalArg() {
39        try {
40            ByteBuffer.allocateDirect(-1);
41            fail("Should throw Exception"); //$NON-NLS-1$
42        } catch (IllegalArgumentException e) {
43            // expected
44        }
45    }
46
47    public void testIsDirect() {
48        assertTrue(buf.isDirect());
49    }
50
51    public void testHasArray() {
52        // Android direct byte buffers have backing arrays.
53        assertTrue(buf.hasArray());
54        // assertFalse(buf.hasArray());
55    }
56
57    public void testIsReadOnly() {
58        assertFalse(buf.isReadOnly());
59    }
60}
61