Added required service validation and fixed test

Author: rladdusaw

src/main/java/edu/tamu/app/model/validation/IdeaValidator.java

@@ -9,6 +9,9 @@ public class IdeaValidator extends BaseModelValidator {
     public IdeaValidator() {
         String titleProperty = "title";
         this.addInputValidator(new InputValidator(InputValidationType.required, "Ideas require a title", titleProperty, true));
+        
+        String serviceProperty = "service";
+        this.addInputValidator(new InputValidator(InputValidationType.required, "Ideas require a Service", serviceProperty, true));
     }
 
 }

src/test/java/edu/tamu/app/model/FeatureProposalTest.java

@@ -146,14 +146,16 @@ public void testElevateIdea() throws UserNotFoundException {
         assertEquals("The number of FeatureProposals did not increase by one", initialCount + 1, featureProposalRepo.count());
     }
 
-    @Test(expected = InvalidDataAccessApiUsageException.class)
+    @Test
     public void testDuplicateIdea() throws UserNotFoundException {
         long initialCount = featureProposalRepo.count();
         Idea testIdea = ideaRepo.create(new Idea(TEST_ALTERNATIVE_FEATURE_PROPOSAL_TITLE, TEST_ALTERNATIVE_FEATURE_PROPOSAL_DESCRIPTION, testUser, service1), TEST_CREDENTIALS);
         FeatureProposal featureProposal = featureProposalRepo.create(testIdea);
         assertEquals("The number of FeatureProposals did not increase by one", initialCount + 1, featureProposalRepo.count());
+        long ideaCount = featureProposal.getIdeas().size();
         featureProposal.addIdea(testIdea);
         featureProposalRepo.save(featureProposal);
+        assertEquals("The number of Ideas on the FeatureProposal did not increase", ideaCount, featureProposal.getIdeas().size());
     }
 
     @Test(expected = DataIntegrityViolationException.class)