test: multiple tag filtering for top 5 links

spec/requests/api/v1/links_request_spec.rb

@@ -204,8 +204,12 @@
       @link6 = Link.create(original: 'https://example6.com', short: 'tur.link/pqr678', user: @user, click_count: 5)
 
       @link1.tags << @tag1
+      @link1.tags << @tag2
+
       @link2.tags << @tag2
+
       @link3.tags << @tag1
+      @link3.tags << @tag2
     end
 
     it 'can return the top 5 links by click count' do
@@ -229,6 +233,17 @@
       expect(links[0][:attributes][:click_count]).to eq(100)
       expect(links.last[:attributes][:click_count]).to eq(50)
     end
+
+    it 'can return the top 5 links filtered by multiple tags' do
+      get '/api/v1/top_links?tag=ruby,javascript'
+
+      expect(response).to be_successful
+      links = JSON.parse(response.body, symbolize_names: true)[:data]
+
+      expect(links.count).to eq(2)
+      expect(links[0][:attributes][:click_count]).to eq)
+      expect(links.last[:attributes][:click_count]).to eq(50)
+    end
   end
 
   describe 'PATCH /users/:user_id/links/:id/update_privacy' do