public void ShouldCreateOrFilter()
{
IOrFilter or;
IOrFilter filter;
or = new OrFilter(JobTable.Description.IsEqualTo("test"), JobTable.Description.IsEqualTo("test"));
filter = or.Or(JobTable.Description.IsNull());
Assert.AreEqual(3, filter.Members.Count());
or = new OrFilter(JobTable.Description.IsEqualTo("test"), JobTable.Description.IsEqualTo("test"));
filter = or.Or(JobTable.Description.IsNull().Or(JobTable.Description.IsNull()));
Assert.AreEqual(4, filter.Members.Count());
or = new OrFilter(JobTable.Description.IsEqualTo("test"), JobTable.Description.IsEqualTo("test"));
filter = or.Or(JobTable.Description.IsNull()).Or(JobTable.Description.IsNull());
Assert.AreEqual(4, filter.Members.Count());
}