@Test
public void testJoinIntArray() {

	final int[] array = {1, -8, -7, -7, -7, -7, -7, -253968, -7, -24, -24,
			-2147475464, 4088, -2147483647, 9, 33505273, 1, -8};
	Assert.assertNull(TaskHelper.join((int[]) null, '1', 2, 3));
	Assert.assertEquals("", TaskHelper.join(new int[0], '\u0000', 24, 5));
	Assert.assertEquals("", TaskHelper.join(new int[0], '\u0000'));
	Assert.assertEquals("1\u0000-8", TaskHelper.join(array, '\u0000', 16, 17));
}