@Test
public void evaluateShouldReturnAllPatientsThatHaveTakenAnyDrugByDefault() throws Exception {

	List drugs = new ArrayList<Drug>();
	drugs.add(new Drug(11));
	drugs.add(new Drug(2));
	cohortDefinition.setDrugs(drugs);
	Cohort cohort = Context.getService(CohortDefinitionService.class).evaluate(cohortDefinition, null);
	Assert.assertTrue(cohort.contains(2));
	Assert.assertTrue(cohort.contains(8));
	Assert.assertTrue(cohort.contains(21));
	Assert.assertTrue(cohort.contains(22));
	Assert.assertEquals(4, cohort.size());
	
}