add size validation to backend (#185)

Author: mcanoy

src/main/java/com/redhat/labs/lodestar/model/Engagement.java

@@ -7,6 +7,8 @@
 import java.util.Set;
 
 import javax.json.bind.annotation.JsonbProperty;
+import javax.validation.constraints.Size;
+
 import com.fasterxml.jackson.annotation.JsonProperty;
 import com.redhat.labs.lodestar.validation.ValidName;
 
@@ -26,9 +28,11 @@ public class Engagement {
 
     private String uuid;
     @ValidName
+    @Size(min = 3, max = 255)
     @JsonbProperty("customer_name")
     private String customerName;
     @ValidName
+    @Size(min = 3, max = 255)
     private String name;
     @JsonbProperty("project_id") //Should this be sent to the FE?
     @DiffIgnore

src/test/java/com/redhat/labs/lodestar/resource/EngagementResourceJwtTest.java

@@ -65,10 +65,10 @@ void testPostEngagementWithAuthAndRoleHasUserClaim(String claimFile, String last
 
         String token = TokenUtils.generateTokenString(claimFile);
 
-        Engagement engagement = Engagement.builder().uuid("uuid").customerName("c1").projectName("e1")
+        Engagement engagement = Engagement.builder().uuid("uuid").customerName("c11").projectName("e11")
                 .type("Residency").build();
 
-        Engagement created = Engagement.builder().uuid("uuid").customerName("c1").projectName("e1")
+        Engagement created = Engagement.builder().uuid("uuid").customerName("c11").projectName("e11")
                         .lastUpdateByName(lastUpdateName).lastUpdateByEmail(lastUpdateEmail).build();
 
         Mockito.when(engagementApiClient.createEngagement(Mockito.any(Engagement.class))).thenReturn(created);