public void unboundContainsAll() {
final ContinuousRealInterval interval = new ContinuousRealInterval( null, null, false,
false );
assertFalse( interval.boundLower() );
assertFalse( interval.boundUpper() );
assertFalse( interval.isPoint() );
assertTrue( interval.contains( -1 ) );
assertTrue( interval.contains( 0 ) );