Fix merging array field for users

test/unit/specs/modules/users.spec.js

@@ -18,6 +18,42 @@ describe('The users module', () => {
       expect(state.users).to.eql([user])
       expect(state.users[0].name).to.eql('Dude')
     })
+
+    it('merging array field in new information for old users', () => {
+      const state = cloneDeep(defaultState)
+      const user = {
+        id: '1',
+        fields: [
+          { name: 'Label 1', value: 'Content 1' }
+        ]
+      }
+      const firstModUser = {
+        id: '1',
+        fields: [
+          { name: 'Label 2', value: 'Content 2' },
+          { name: 'Label 3', value: 'Content 3' }
+        ]
+      }
+      const secondModUser = {
+        id: '1',
+        fields: [
+          { name: 'Label 4', value: 'Content 4' }
+        ]
+      }
+
+      mutations.addNewUsers(state, [user])
+      expect(state.users[0].fields).to.have.length(1)
+      expect(state.users[0].fields[0].name).to.eql('Label 1')
+
+      mutations.addNewUsers(state, [firstModUser])
+      expect(state.users[0].fields).to.have.length(2)
+      expect(state.users[0].fields[0].name).to.eql('Label 2')
+      expect(state.users[0].fields[1].name).to.eql('Label 3')
+
+      mutations.addNewUsers(state, [secondModUser])
+      expect(state.users[0].fields).to.have.length(1)
+      expect(state.users[0].fields[0].name).to.eql('Label 4')
+    })
   })
 
   describe('findUser', () => {