Improve SQL test script

src/test/sql/fixtures/3-fixture_workgroup.sql

@@ -0,0 +1,29 @@
+create or replace function fixture_workgroup(in name text default 'vert', _citizen_id uuid default fixture_citizen(), out _article_id uuid)
+    language plpgsql as
+$$
+declare
+    created_workgroup  json;
+begin
+    if (name = 'vert') then
+        created_workgroup = '{
+            "name": "Le groupe des vert",
+            "description": "test",
+            "anonymous": false
+        }';
+    elseif (name = 'rouge') then
+        created_workgroup = '{
+          "name": "Le groupe des rouge",
+          "description": "test",
+          "anonymous": false
+        }';
+    end if;
+
+    created_workgroup := jsonb_set(created_workgroup::jsonb, '{created_by}'::text[], jsonb_build_object('id', _citizen_id::text), true)::json;
+    created_workgroup := jsonb_set(created_workgroup::jsonb, '{owner}'::text[], jsonb_build_object('id', _citizen_id::text), true)::json;
+    assert created_workgroup#>>'{created_by, id}' = _citizen_id::text, format('citizenId in workgroup must be the same as citizen, %s != %s', created_workgroup#>>'{created_by, id}', _citizen_id::text);
+
+    -- upsert workgroup
+    select upsert_workgroup(created_workgroup) into created_workgroup;
+    assert created_workgroup->>'description' is not null, 'description should not be null';
+end;
+$$;