Package org.apache.james.mime4j.util

Examples of org.apache.james.mime4j.util.ByteArrayBuffer.capacity()

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public class TestByteArrayBuffer extends TestCase {

    public void testConstructor() throws Exception {
        ByteArrayBuffer buffer = new ByteArrayBuffer(16);
        assertEquals(16, buffer.capacity());
        assertEquals(0, buffer.length());
        assertNotNull(buffer.buffer());
        assertEquals(16, buffer.buffer().length);
        try {
            new ByteArrayBuffer(-1);
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        }
    }

    public void testSimpleAppend() throws Exception {
        ByteArrayBuffer buffer = new ByteArrayBuffer(16);
        assertEquals(16, buffer.capacity());
        assertEquals(0, buffer.length());
        byte[] b1 = buffer.toByteArray();
        assertNotNull(b1);
        assertEquals(0, b1.length);
        assertTrue(buffer.isEmpty());
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        assertTrue(buffer.isEmpty());
        assertFalse(buffer.isFull());

        byte[] tmp = new byte[] { 1, 2, 3, 4};
        buffer.append(tmp, 0, tmp.length);
        assertEquals(16, buffer.capacity());
        assertEquals(4, buffer.length());
        assertFalse(buffer.isEmpty());
        assertFalse(buffer.isFull());

        byte[] b2 = buffer.toByteArray();
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        for (int i = 0; i < tmp.length; i++) {
            assertEquals(tmp[i], b2[i]);
            assertEquals(tmp[i], buffer.byteAt(i));
        }
        buffer.clear();
        assertEquals(16, buffer.capacity());
        assertEquals(0, buffer.length());
        assertTrue(buffer.isEmpty());
        assertFalse(buffer.isFull());
    }
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        assertFalse(buffer.isFull());
    }

    public void testExpandAppend() throws Exception {
        ByteArrayBuffer buffer = new ByteArrayBuffer(4);
        assertEquals(4, buffer.capacity());

        byte[] tmp = new byte[] { 1, 2, 3, 4};
        buffer.append(tmp, 0, 2);
        buffer.append(tmp, 0, 4);
        buffer.append(tmp, 0, 0);
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        byte[] tmp = new byte[] { 1, 2, 3, 4};
        buffer.append(tmp, 0, 2);
        buffer.append(tmp, 0, 4);
        buffer.append(tmp, 0, 0);

        assertEquals(8, buffer.capacity());
        assertEquals(6, buffer.length());

        buffer.append(tmp, 0, 4);

        assertEquals(16, buffer.capacity());
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        assertEquals(8, buffer.capacity());
        assertEquals(6, buffer.length());

        buffer.append(tmp, 0, 4);

        assertEquals(16, buffer.capacity());
        assertEquals(10, buffer.length());
    }

    public void testInvalidAppend() throws Exception {
        ByteArrayBuffer buffer = new ByteArrayBuffer(4);
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        }
    }

    public void testAppendOneByte() throws Exception {
        ByteArrayBuffer buffer = new ByteArrayBuffer(4);
        assertEquals(4, buffer.capacity());

        byte[] tmp = new byte[] { 1, 127, -1, -128, 1, -2};
        for (byte b : tmp) {
            buffer.append(b);
        }
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        byte[] tmp = new byte[] { 1, 127, -1, -128, 1, -2};
        for (byte b : tmp) {
            buffer.append(b);
        }
        assertEquals(8, buffer.capacity());
        assertEquals(6, buffer.length());

        for (int i = 0; i < tmp.length; i++) {
            assertEquals(tmp[i], buffer.byteAt(i));
        }
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*/
public class TestByteArrayBuffer extends TestCase {

    public void testConstructor() throws Exception {
        ByteArrayBuffer buffer = new ByteArrayBuffer(16);
        assertEquals(16, buffer.capacity());
        assertEquals(0, buffer.length());
        assertNotNull(buffer.buffer());
        assertEquals(16, buffer.buffer().length);
        try {
            new ByteArrayBuffer(-1);
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