Merge pull request #66 from abdullahallmehedi/49514_RSpec_for_UsersCo…

…urse_Model

RSpec for UsersCourse Model 49514

spec/factories/users_courses.rb

@@ -0,0 +1,8 @@
+require "faker"
+
+FactoryGirl.define do
+  factory :users_course do
+    user
+    course
+  end
+end

spec/models/users_course_spec.rb

@@ -0,0 +1,32 @@
+require "rails_helper"
+
+describe UsersCourse do
+  let(:demo_obj) {FactoryGirl.build :users_course}
+  subject {FactoryGirl.create :users_course}  
+
+  it {is_expected.to be_an UsersCourse}
+  it {expect belong_to :user}
+  it {expect belong_to :course}
+
+  it "triggers .appened_assigned_users on save" do
+    expect(demo_obj).to receive :appened_assigned_users
+    demo_obj.save
+  end
+
+  it "triggers .appened_removed_users on destroy" do
+    demo_obj.save
+    expect(demo_obj).to receive :appened_removed_users
+    demo_obj.destroy
+  end
+
+  it {expect(demo_obj.course.assigned_users).not_to include demo_obj.user}
+  context "checking callbacks internal functionality" do
+    before {demo_obj.save}
+
+    it {expect(demo_obj.course.assigned_users).to include demo_obj.user}
+    it "appened_removed_users" do
+      demo_obj.destroy
+      expect(demo_obj.course.assigned_users).to include demo_obj.user
+    end
+  end
+end