@Test
    final void testFloatValue() {
        assertTrue(Float.isNaN(NanNumber.NaN.floatValue()));
    }
Integrity test for representation of undefined numeric field values.

@author <a href="mailto:steinar@yahoo-inc.com">Steinar Knutsen</a>
container-search/src/test/java/com/yahoo/search/result/NanNumberTestCase.java