Customertests

app/controllers/customers_controller.rb

@@ -1,2 +1,12 @@
 class CustomersController < ApplicationController
+
+  def index
+    customers = Customer.all
+
+    render(
+    json: customers.as_json(only: [:id, :name, :registered_at, :postal_code, :phone, :movies_checked_out_count]),
+    status: :ok
+  )
+  end
+
 end

app/models/customer.rb

@@ -1,4 +1,6 @@
 class Customer < ApplicationRecord
   has_many :movies
+
+  validates :name, presence: true
 
 end

db/migrate/20171106221254_add_movies_checked_out_count.rb

@@ -0,0 +1,5 @@
+class AddMoviesCheckedOutCount < ActiveRecord::Migration[5.1]
+  def change
+    add_column :customers, :movies_checked_out_count, :integer, :default => 0
+  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: 20171106213616) do
+ActiveRecord::Schema.define(version: 20171106221254) do
 
   # These are extensions that must be enabled in order to support this database
   enable_extension "plpgsql"
@@ -26,6 +26,7 @@
     t.datetime "created_at", null: false
     t.datetime "updated_at", null: false
     t.float "account_credit"
+    t.integer "movies_checked_out_count", default: 0
   end
 
   create_table "movies", force: :cascade do |t|

test/controllers/customers_controller_test.rb

@@ -1,7 +1,43 @@
 require "test_helper"
 
 describe CustomersController do
-  # it "must be a real test" do
-  #   flunk "Need real tests"
-  # end
+  describe "index" do
+    it "is a real working route" do
+      get customers_path
+      must_respond_with :success
+    end
+
+    it "returns json" do
+      get customers_path
+      response.header['Content-Type'].must_include 'json'
+    end
+
+    it "returns an Array" do
+      get customers_path
+
+      body = JSON.parse(response.body)
+      body.must_be_kind_of Array
+    end
+
+    it "returns all of the customers" do
+      get customers_path
+
+      body = JSON.parse(response.body)
+      body.length.must_equal Customer.count+1
+    end
+
+    it "returns an empty array if there are no customers" do
+      Customer.destroy_all
+
+      get customers_path
+
+      must_respond_with :success
+      body = JSON.parse(response.body)
+      body.must_be_kind_of Array
+
+      body.must_be :empty?
+
+    end
+  end
+
 end

test/models/customer_test.rb

@@ -3,7 +3,58 @@
 describe Customer do
 
 
-  # at least one positive and one negative test case for each relation, validation, and custom function
+  describe "validations" do
 
+    it "wont save if name is not present" do
+      invalid_customer_data = {
+        phone: "(555)555-555"
+      }
+
+      invalid_customer = Customer.new(invalid_customer_data)
+      invalid_customer.wont_be :valid?
+      invalid_customer.errors.messages.must_include :name
+      invalid_customer.errors.messages.values.first.must_include "can't be blank"
+    end
+
+    it "will save if name is present" do
+      valid_customer_data = {
+        name: "test",
+        phone: "(555)555-555"
+      }
+
+      start_count = Customer.count
+
+      valid_customer = Customer.new(valid_customer_data)
+      valid_customer.must_be :valid?
+      valid_customer.save
+
+      Customer.count.must_equal start_count+1
+    end
+
+    it "will default movies_checked_out_count to 0" do
+      valid_customer_data = {
+        name: "test",
+        phone: "(555)555-555"
+      }
+
+      valid_customer = Customer.new(valid_customer_data)
+      valid_customer.save
+
+      valid_customer.movies_checked_out_count.must_equal 0
+    end
+
+    it "will change movies_checked_out_count if provided" do
+      valid_customer_data = {
+        name: "test",
+        phone: "(555)555-555",
+        movies_checked_out_count: 3
+      }
+
+      valid_customer = Customer.new(valid_customer_data)
+      valid_customer.save
+
+      valid_customer.movies_checked_out_count.must_equal 3
+    end
+  end
 
 end