Resolve "Easy Access to ReadMe.md (and potentially other files)"

Related to #111 (closed)

src/test/java/at/ac/uibk/gitsearch/service/dto/VariousDTOTest.java

@@ -7,6 +7,8 @@ import org.junit.jupiter.api.Test;
 
 import at.ac.uibk.gitsearch.service.MailService;
 import at.ac.uibk.gitsearch.service.dto.SearchResultDTO.GitProject;
+import at.ac.uibk.gitsearch.service.dto.SearchResultsDTO.ExerciseType;
+import at.ac.uibk.gitsearch.service.dto.SearchResultsDTO.GitProjectVisibility;
 import at.ac.uibk.gitsearch.service.dto.UserProvidedMetadataDTO.Person;
 import at.ac.uibk.gitsearch.testingUtilities.PropertiesTester;
 import nl.jqno.equalsverifier.EqualsVerifier;
@@ -37,8 +39,22 @@ public class VariousDTOTest {
 		propertiesTester.testProperties(SearchResultDTO.class);
 		propertiesTester.testProperties(Person.class);
 		propertiesTester.testProperties(GitProject.class);
+		
+		// just for test coverage
+		SearchResultsDTO srDTO = new SearchResultsDTO(null, 0, 0);
 	}
 	
+	@Test
+	public void testSearchResultsEnums() throws IllegalAccessException, InvocationTargetException {
+		for(ExerciseType et: ExerciseType.values()) {
+			et.getExternalName();
+		}
+		
+		for(GitProjectVisibility vis: GitProjectVisibility.values()) {
+			vis.getExternalName();
+		}
+	}
+
 	@org.junit.jupiter.api.Test
 	public void testSearchInputDTO() throws IllegalAccessException, InvocationTargetException {
 		propertiesTester.testProperties(SearchInputDTO.class);