enhance and rework FilterServiceTest (#2)

Signed-off-by: Rehili Ghazwa <[email protected]>

Author: ghazwarhili

src/main/java/org/gridsuite/computation/dto/GlobalFilter.java

@@ -12,6 +12,7 @@
 import lombok.Builder;
 import lombok.Getter;
 import lombok.NoArgsConstructor;
+import lombok.experimental.FieldNameConstants;
 
 import java.util.List;
 import java.util.Map;
@@ -24,6 +25,7 @@
 @Builder
 @AllArgsConstructor
 @NoArgsConstructor
+@FieldNameConstants
 public class GlobalFilter {
     List<String> nominalV;