@Test public void testChangeInputStream() throws IOException, SerializeException, DeserializeException { final Integer[] integers1 = new Integer[] {10, 20, 30, 42}; final Integer[] integers2 = new Integer[] {10, 20, 30, 42}; ByteArrayOutputStream byteOutputStream1 = new ByteArrayOutputStream(); try (DataOutputStreamEx dataOutputStream1 = DataOutputStreamEx.create(byteOutputStream1, 30)) { for (Integer integer : integers1) { dataOutputStream1.serialize(intSerializer(), integer, MAX_SIZE_127); } } ByteArrayOutputStream byteOutputStream2 = new ByteArrayOutputStream(); try (DataOutputStreamEx dataOutputStream2 = DataOutputStreamEx.create(byteOutputStream2, 30)) { for (Integer integer : integers2) { dataOutputStream2.serialize(intSerializer(), integer, MAX_SIZE_127); } } ByteArrayInputStream byteInputStream1 = new ByteArrayInputStream(byteOutputStream1.toByteArray()); ByteArrayInputStream byteInputStream2 = new ByteArrayInputStream(byteOutputStream2.toByteArray()); try (DataInputStreamEx dataInputStream = DataInputStreamEx.create(byteInputStream1, 10)) { for (Integer integer : integers1) { assertEquals(integer, dataInputStream.deserialize(intSerializer())); } dataInputStream.changeInputStream(byteInputStream2); for (Integer integer : integers2) { assertEquals(integer, dataInputStream.deserialize(intSerializer())); } assertTrue(dataInputStream.isEndOfStream()); } assertEquals(getPoolItemsString(), getCreatedItems(), getPoolItems()); }