harmony-tests/src/test/java/org/apache/harmony/nio/tests/java/nio/ReadOnlyDoubleBufferTest.java

/* Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements.  See the NOTICE file distributed with
 * this work for additional information regarding copyright ownership.
 * The ASF licenses this file to You under the Apache License, Version 2.0
 * (the "License"); you may not use this file except in compliance with
 * the License.  You may obtain a copy of the License at
 * 
 *     http://www.apache.org/licenses/LICENSE-2.0
 * 
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package org.apache.harmony.nio.tests.java.nio;

import java.nio.DoubleBuffer;
import java.nio.ReadOnlyBufferException;

public class ReadOnlyDoubleBufferTest extends DoubleBufferTest {

	protected void setUp() throws Exception {
		super.setUp();
		buf = buf.asReadOnlyBuffer();
		baseBuf = buf;
	}

	protected void tearDown() throws Exception {
		super.tearDown();
	}

    public void testIsReadOnly() {
        assertTrue(buf.isReadOnly());
    }

    public void testHasArray() {
        assertFalse(buf.hasArray());
    }

    public void testArray() {
        try {
            buf.array();
            fail("Should throw ReadOnlyBufferException"); //$NON-NLS-1$
        } catch (ReadOnlyBufferException e) {
        }
    }

    public void testHashCode() {
        DoubleBuffer duplicate = buf.duplicate();
        assertEquals(buf.hashCode(), duplicate.hashCode());
    }

    public void testArrayOffset() {
        try {
            buf.arrayOffset();
            fail("Should throw Exception"); //$NON-NLS-1$
        } catch (UnsupportedOperationException e) {
        }
    }

    public void testCompact() {
        try {
            buf.compact();
            fail("Should throw Exception"); //$NON-NLS-1$
        } catch (ReadOnlyBufferException e) {
            // expected
        }
    }

    public void testPutdouble() {
        try {
            buf.put(0);
            fail("Should throw Exception"); //$NON-NLS-1$
        } catch (ReadOnlyBufferException e) {
            // expected
        }
    }

    public void testPutdoubleArray() {
        double array[] = new double[1];
        try {
            buf.put(array);
            fail("Should throw Exception"); //$NON-NLS-1$
        } catch (ReadOnlyBufferException e) {
            // expected
        }
        try {
            buf.put((double[]) null);
            fail("Should throw Exception"); //$NON-NLS-1$
        } catch (NullPointerException e) {
            // expected
        }
    }

    public void testPutdoubleArrayintint() {
        double array[] = new double[1];
        try {
            buf.put(array, 0, array.length);
            fail("Should throw ReadOnlyBufferException"); //$NON-NLS-1$
        } catch (ReadOnlyBufferException e) {
            // expected
        }
        try {
            buf.put((double[]) null, 0, 1);
            fail("Should throw ReadOnlyBufferException"); //$NON-NLS-1$
        } catch (ReadOnlyBufferException e) {
            // expected
        }
        try {
            buf.put(new double[buf.capacity() + 1], 0, buf.capacity() + 1);
            fail("Should throw ReadOnlyBufferException"); //$NON-NLS-1$
        } catch (ReadOnlyBufferException e) {
            // expected
        }
        try {
            buf.put(array, -1, array.length);
            fail("Should throw ReadOnlyBufferException"); //$NON-NLS-1$
        } catch (ReadOnlyBufferException e) {
            // expected
        }
    }

    public void testPutDoubleBuffer() {
        DoubleBuffer other = DoubleBuffer.allocate(1);
        try {
            buf.put(other);
            fail("Should throw ReadOnlyBufferException"); //$NON-NLS-1$
        } catch (ReadOnlyBufferException e) {
            // expected
        }
        try {
            buf.put((DoubleBuffer) null);
            fail("Should throw ReadOnlyBufferException"); //$NON-NLS-1$
        } catch (ReadOnlyBufferException e) {
            // expected
        }
        try {
            buf.put(buf);
            fail("Should throw ReadOnlyBufferException"); //$NON-NLS-1$
        } catch (ReadOnlyBufferException e) {
            // expected
        }
    }

    public void testPutintdouble() {
        try {
            buf.put(0, (double) 0);
            fail("Should throw ReadOnlyBufferException"); //$NON-NLS-1$
        } catch (ReadOnlyBufferException e) {
            // expected
        }
        try {
            buf.put(-1, (double) 0);
            fail("Should throw ReadOnlyBufferException"); //$NON-NLS-1$
        } catch (ReadOnlyBufferException e) {
            // expected
        }
    }
}