DEV: Refactor test to assert for the actual output.

Also, generatnig the same json multiple times.

spec/serializers/basic_user_serializer_spec.rb

@@ -2,28 +2,20 @@ require 'rails_helper'
 require_dependency 'user'
 
 describe BasicUserSerializer do
-
-  context "name" do
+  describe '#as_json' do
     let(:user) { Fabricate.build(:user) }
     let(:serializer) { BasicUserSerializer.new(user, scope: Guardian.new(user), root: false) }
     let(:json) { serializer.as_json }
 
     it "returns the username" do
-      expect(json[:username]).to be_present
-    end
-
-    it "returns the name it when `enable_names` is true" do
-      SiteSetting.enable_names = true
-      expect(json[:name]).to be_present
+      expect(json[:username]).to eq(user.username)
+      expect(json[:name]).to eq(user.name)
+      expect(json[:avatar_template]).to eq(user.avatar_template)
     end
 
     it "doesn't return the name it when `enable_names` is false" do
       SiteSetting.enable_names = false
-      expect(json[:name]).to be_blank
-    end
-
-    it "returns the avatar_template" do
-      expect(json[:avatar_template]).to be_present
+      expect(json[:name]).to eq(nil)
     end
   end
 end