### Question:
DynamicArray { public int size() { return length; } protected  DynamicArray(int size, MemoryEstimate memoryEstimate, int literalSize,
      int defaultSize); int size(); void clear(); long getSizeInBytes(); void cleanup();  }### Answer:
@Test public void testByteArray() throws Exception { DynamicByteArray dba = new DynamicByteArray(10, new MemoryEstimate()); dba.add((byte) 0); dba.add((byte) 1); dba.set(3, (byte) 3); dba.set(2, (byte) 2); dba.add((byte) 4); assertEquals("{0,1,2,3,4}", dba.toString()); assertEquals(5, dba.size()); byte[] val; val = new byte[0]; assertEquals(0, dba.compare(val, 0, 0, 2, 0)); assertTrue(dba.compare(val, 0, 0, 2, 1) < 0); val = new byte[]{3,42}; assertTrue(dba.compare(val, 0, 1, 2, 0) > 0); assertTrue(dba.compare(val, 0, 1, 2, 1) > 0); assertEquals(0, dba.compare(val, 0, 1, 3, 1)); assertTrue(dba.compare(val, 0, 1, 3, 2) < 0); assertTrue(dba.compare(val, 0, 2, 3, 1) > 0); val = new byte[256]; for(int b=-128; b < 128; ++b) { dba.add((byte) b); val[b+128] = (byte) b; } assertEquals(0, dba.compare(val, 0, 256, 5, 256)); assertTrue(dba.compare(val, 0, 1, 0, 1) > 0); assertTrue(dba.compare(val, 254, 1, 0, 1) > 0); assertTrue(dba.compare(val, 120, 1, 64, 1) > 0); val = new byte[1024]; Random rand = new Random(1701); for(int i = 0; i < val.length; ++i) { rand.nextBytes(val); } dba.add(val, 0, 1024); assertEquals(1285, dba.size()); assertEquals(0, dba.compare(val, 0, 1024, 261, 1024)); }