### Question:
Value implements WritableComparable<Object> { public byte[] get() { assert (value != null); return this.value; } Value();  Value(CharSequence cs);  Value(Text text);  Value(byte[] bytes);  Value(ByteBuffer bytes);  Value(byte[] bytes, boolean copy);  Value(final Value ibw);  Value(final byte[] newData, final int offset, final int length); byte[] get(); void set(final byte[] b); void copy(byte[] b); int getSize(); @Override void readFields(final DataInput in); @Override void write(final DataOutput out); @Override int hashCode(); @Override int compareTo(Object right_obj); int compareTo(final byte[] that); @Override boolean equals(Object right_obj); boolean contentEquals(byte[] right_obj); @Override String toString();  }### Answer:
@Test public void testDefault() { Value v = new Value(); assertEquals(0, v.get().length); }
@Test public void testByteArray() { Value v = new Value(DATA); assertArrayEquals(DATA, v.get()); assertSame(DATA, v.get()); }
@Test public void testByteArrayCopy() { Value v = new Value(DATA, true); assertArrayEquals(DATA, v.get()); assertNotSame(DATA, v.get()); }
@Test public void testByteBuffer() { Value v = new Value(DATABUFF); assertArrayEquals(DATA, v.get()); }
@Test public void testByteArrayOffsetLength() { Value v = new Value(DATA, 0, 4); assertArrayEquals(DATA, v.get()); }