Assert.assertFalse(isNegative.passesFilter(null, itemPositive));
Filter isNonNegative = new GreaterOrEqual(PROPERTY1, zero);
Assert.assertFalse(isNonNegative.passesFilter(null, itemNegative));
Assert.assertTrue(isNonNegative.passesFilter(null, itemZero));
Assert.assertTrue(isNonNegative.passesFilter(null, itemPositive));
Filter isNonPositive = new LessOrEqual(PROPERTY1, zero);
Assert.assertTrue(isNonPositive.passesFilter(null, itemNegative));
Assert.assertTrue(isNonPositive.passesFilter(null, itemZero));
Assert.assertFalse(isNonPositive.passesFilter(null, itemPositive));