public void TestNestedOrNotFilters()
        {
            var filter = new OrFilter(
                new CategoryFilter("Dummy"),
                new NotFilter(new CategoryFilter("Dummy")));

            Assert.That(filter.Match(_dummyFixture));
            Assert.That(filter.IsExplicitMatch(_dummyFixture));

            Assert.That(filter.Match(_anotherFixture));
            Assert.False(filter.IsExplicitMatch(_anotherFixture));

            Assert.That(filter.Match(_yetAnotherFixture));
            Assert.False(filter.IsExplicitMatch(_yetAnotherFixture));

            Assert.That(filter.Match(_explicitFixture));
            Assert.False(filter.IsExplicitMatch(_explicitFixture));
        }