@Test
public void evaluateShouldReturnAllPatients() throws Exception {

	Cohort cohort = Context.getService(CohortDefinitionService.class).evaluate(cohortDefinition, null);
	
	Assert.assertTrue(cohort.contains(2));
	Assert.assertTrue(cohort.contains(7));
	Assert.assertTrue(cohort.contains(8));
	Assert.assertTrue(cohort.contains(21));
	Assert.assertTrue(cohort.contains(22));
	Assert.assertEquals(5, cohort.size());
}