Add specs for model facebook_page (#346)

app/models/channel/facebook_page.rb

@@ -14,7 +14,8 @@
 #
 # Indexes
 #
-#  index_channel_facebook_pages_on_page_id  (page_id)
+#  index_channel_facebook_pages_on_page_id                 (page_id)
+#  index_channel_facebook_pages_on_page_id_and_account_id  (page_id,account_id) UNIQUE
 #
 
 module Channel
@@ -22,7 +23,7 @@ module Channel
     self.table_name = 'channel_facebook_pages'
 
     validates :account_id, presence: true
-    validates_uniqueness_of :page_id, scope: :account_id
+    validates :page_id, uniqueness: { scope: :account_id }
     mount_uploader :avatar, AvatarUploader
     belongs_to :account
 

db/migrate/20191204192301_add_index_unique_channel_facebook_page_id_account_id.rb

@@ -0,0 +1,5 @@
+class AddIndexUniqueChannelFacebookPageIdAccountId < ActiveRecord::Migration[6.0]
+  def change
+    add_index :channel_facebook_pages, [:page_id, :account_id], unique: true
+  end
+end

db/schema.rb

@@ -10,7 +10,7 @@
 #
 # It's strongly recommended that you check this file into your version control system.
 
-ActiveRecord::Schema.define(version: 2019_12_02_173004) do
+ActiveRecord::Schema.define(version: 2019_12_04_192301) do
 
   # These are extensions that must be enabled in order to support this database
   enable_extension "plpgsql"
@@ -52,6 +52,7 @@ ActiveRecord::Schema.define(version: 2019_12_02_173004) do
     t.datetime "created_at", null: false
     t.datetime "updated_at", null: false
     t.string "avatar"
+    t.index ["page_id", "account_id"], name: "index_channel_facebook_pages_on_page_id_and_account_id", unique: true
     t.index ["page_id"], name: "index_channel_facebook_pages_on_page_id"
   end
 

spec/factories/channel/facebook_pages.rb

@@ -0,0 +1,11 @@
+# frozen_string_literal: true
+
+FactoryBot.define do
+  factory :channel_facebook_page, class: Channel::FacebookPage do
+    name { Faker::Name.name }
+    page_access_token { SecureRandom.uuid }
+    user_access_token { SecureRandom.uuid }
+    page_id { SecureRandom.uuid }
+    account
+  end
+end

spec/models/channel/facebook_page_spec.rb

@@ -0,0 +1,12 @@
+# frozen_string_literal: true
+
+require 'rails_helper'
+
+RSpec.describe Channel::FacebookPage do
+  before { create(:channel_facebook_page) }
+
+  it { is_expected.to validate_presence_of(:account_id) }
+  it { is_expected.to validate_uniqueness_of(:page_id).scoped_to(:account_id) }
+  it { is_expected.to belong_to(:account) }
+  it { is_expected.to have_one(:inbox).dependent(:destroy) }
+end