sonarQube : Test de vouverture de l'Exception inattendue.

@@ -20,6 +20,7 @@ import org.slf4j.LoggerFactory;
 import java.util.List;
 
 import static org.assertj.core.api.Assertions.assertThat;
+import static org.junit.jupiter.api.Assertions.assertThrows;
 import static org.mockito.ArgumentMatchers.any;
 import static org.mockito.ArgumentMatchers.anyInt;
 import static org.mockito.Mockito.when;
@@ -37,7 +38,8 @@ public class PublisherVersionViewTest {
 
     private PublisherVersion publisherVersion;
 
-    // TODO tester add et update, mais je ne sais pas comment je suis censé faire
+    @Mock
+    PublisherVersion publisherVersionMock;
 
     @BeforeEach
     public void setUp(@Mock PublisherService publisherService, @Mock SharedService sharedService) throws Exception {
@@ -179,6 +181,23 @@ public class PublisherVersionViewTest {
     }
 
     @Nested
+    @DisplayName("getImmutableValues method")
+    class getImmutableValuesTests{
+        @BeforeEach
+        @DisplayName("given a way to get a null")
+        public void given(@Mock PublisherService publisherService) {
+            when(publisherService.addNewPublisher(any())).thenReturn(publisherVersionMock);
+            when(publisherVersionMock.getPublisherVersionId()).thenReturn(2);
+            when(publisherService.getPublisherVersion(2)).thenReturn(null);
+        }
+        @Test
+        @DisplayName("throws an IllegalStateException")
+        public void testUnexcpetedNull() {
+            assertThrows(IllegalStateException.class, () -> publisherVersionView.add());
+        }
+    }
+
+    @Nested
     @DisplayName("save method")
     class saveTests{
         PublisherVersionView publisherVersionViewForSave;