API for app usage tracking

spec/controllers/app_usages_controller_spec.rb

@@ -0,0 +1,28 @@
+require 'rails_helper'
+
+RSpec.describe AppUsagesController, type: :controller do
+
+  describe "POST #create" do
+    describe "Authorized" do
+      let(:device){create(:device)}
+      before(:each) do
+        request.env['HTTP_AUTHORIZATION'] = ActionController::HttpAuthentication::Token.encode_credentials(device.access_token)
+      end
+      it "Valid params" do
+        post :create, app_usage: attributes_for(:app_usage), format: :json
+        expect(response).to have_http_status(:success)
+      end
+
+      it "InValid Params" do
+        post :create, app_usage: attributes_for(:invalid_app_usage), format: :json
+        expect(response).to have_http_status(:unprocessable_entity)
+      end
+    end
+    describe "POST #create" do
+      it "Unauthorized" do
+        post :create, app_usage: attributes_for(:app_usage), format: :json
+        expect(response).to have_http_status(:unauthorized)
+      end
+    end
+  end
+end

spec/factories/app_usages.rb

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+FactoryGirl.define do
+  factory :app_usage do
+    package_name "com.facebook.katana"
+    usage_duration_in_seconds 7000
+    used_on Date.today - 1.day
+  end
+  factory :invalid_app_usage, class: AppUsage do
+    package_name ""
+    usage_duration_in_seconds 7000
+    used_on Date.today - 1.day
+  end
+
+end

spec/models/app_usage_spec.rb

@@ -0,0 +1,9 @@
+require 'rails_helper'
+
+RSpec.describe AppUsage, type: :model do
+  let!(:app_usage) { create(:app_usage) }
+
+  it { should validate_presence_of :package_name } 
+  it { should validate_presence_of :usage_duration_in_seconds } 
+  it { should validate_presence_of :used_on } 
+end