Add books request tests

Author: Eugeny Khlopin

.gitignore

@@ -0,0 +1,5 @@
+/tmp/*
+.byebug_history
+/config/database.yml
+/coverage/*
+/log/*

spec/factories/authors.rb

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+FactoryBot.define do
+  factory :author do
+    name { Faker::Book.author }
+  end
+end

spec/factories/books.rb

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+FactoryBot.define do
+  factory :book do
+    title { Faker::Book.title }
+    description { Faker::ChuckNorris.fact }
+  end
+end

spec/request/api/v1/books_spec.rb

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+require 'rails_helper'
+
+RSpec.describe 'Book', type: :request do
+
+  let!(:books) { FactoryBot.create_list(:book, 10) }
+
+  let(:valid_params) do
+    {
+      book: {
+        title: Faker::Book.title,
+        destcription: Faker::ChuckNorris.fact
+      }
+    }
+  end
+
+  describe 'GET /books/' do
+    it 'Gets books' do
+      get '/api/v1/books'
+      expect(response).to be_success
+      expect(json.count).to eq(books.count)
+    end
+  end
+
+  describe 'GET /books/:id' do
+    it 'Show the book by id' do
+      book = books.sample
+      get "/api/v1/books/#{book.id}"
+
+      expect(response).to be_success
+      expect(json['id']).to eq(book.id)
+    end
+  end
+
+  describe 'DELETE /books/:id' do
+    it 'Deletes the book by id' do
+      book = books.sample
+      delete "/api/v1/books/#{book.id}"
+      expect(response).to be_success
+      expect(Book.find_by(id: book.id)).to eq(nil)
+    end
+  end
+
+  describe 'POST /books/' do
+    it 'Create a book' do
+      post '/api/v1/books', params: valid_params
+      expect(response).to be_success
+      expect(json).to have_key('id')
+      expect(books.count).to be < Book.count
+    end
+  end
+
+  describe 'PUT /books/:id' do
+    it 'Update the book' do
+      book = books.sample
+      params = { book: { title: book.title.upcase } }
+      put "/api/v1/books/#{book.id}", params: params
+      expect(response).to be_success
+      expect(json['title']).to eq(book.title.upcase)
+    end
+  end
+
+end

spec/support/request_spec_helper.rb

@@ -1,5 +1,5 @@
 module RequestSpecHelper
   def json
-    JSON.parse(response_body)
+    JSON.parse(response.body)
   end
 end