@Test
    public void testAWSFormatDateUtils() throws Exception {
        testDate(System.currentTimeMillis());
        testDate(1L);
        testDate(0L);
    }
Tests the Date marshalling and unmarshalling. Asserts that the value is
same before and after marshalling/unmarshalling
aws-java-sdk-core/src/test/java/com/amazonaws/util/DateUtilsTest.java