Can delete group members

src/data/group_member.rs

@@ -2,17 +2,21 @@
 //!
 //! @author Pierre Hubert
 
-use crate::data::user::UserID;
 use crate::data::group_id::GroupID;
+use crate::data::user::UserID;
 
-#[derive(PartialEq, Eq)]
+#[derive(PartialEq, Eq, PartialOrd)]
 pub enum GroupMembershipLevel {
     ADMINISTRATOR = 0,
     MODERATOR = 1,
     MEMBER = 2,
     INVITED = 3,
-    PENDING = 4, //When the group membership has not been approved yet
-    VISITOR = 5, //Simple visit
+
+    // When the group membership has not been approved yet
+    PENDING = 4,
+
+    // Simple visit
+    VISITOR = 5,
 }
 
 impl GroupMembershipLevel {
@@ -34,5 +38,19 @@ pub struct GroupMember {
     pub group_id: GroupID,
     pub time_create: u64,
     pub level: GroupMembershipLevel,
-    pub following: bool
+    pub following: bool,
+}
+
+#[cfg(test)]
+mod tests {
+    use crate::data::group_member::GroupMembershipLevel;
+
+    #[test]
+    fn membership_level_coherence() {
+        assert!(GroupMembershipLevel::ADMINISTRATOR < GroupMembershipLevel::MODERATOR);
+        assert!(GroupMembershipLevel::MODERATOR < GroupMembershipLevel::MEMBER);
+        assert!(GroupMembershipLevel::MEMBER < GroupMembershipLevel::INVITED);
+        assert!(GroupMembershipLevel::INVITED < GroupMembershipLevel::PENDING);
+        assert!(GroupMembershipLevel::PENDING < GroupMembershipLevel::VISITOR);
+    }
 }