fluke/devops-service/spec/models/stack_template/stack_template_ec2_spec.rb

require 'db/mongo/models/stack_template/stack_template_ec2'
require_relative 'shared_stack_template_specs'

RSpec.describe Devops::Model::StackTemplateEc2, type: :model do
  let(:stack_template) { build(:stack_template_ec2) }

  before do
    allow(Provider::ProviderFactory).to receive(:providers).and_return(%w(ec2))
    allow_any_instance_of(Devops::Model::StackTemplateEc2).to receive_message_chain('provider_instance.validate_stack_template') { true }
    allow_any_instance_of(Devops::Model::StackTemplateEc2).to receive_message_chain('provider_instance.store_stack_template') { {'url' => nil} }
  end

  it_behaves_like 'stack template'

  it 'uploads file to S3' do
    expect_any_instance_of(Devops::Model::StackTemplateEc2).to receive_message_chain('provider_instance.store_stack_template')
    params = {
      'id' => 'foo',
      'template_body' => '{}',
      'owner' => 'root',
      'provider' => 'ec2'
    }
    expect(described_class.create(params)).to be_an_instance_of(described_class)
  end

  describe 'available parameters fetching' do
    let(:template_body) { %q(
        {
          "Description" : "Example",

          "Parameters" : {
            "KeyName": {
              "Description" : "Name of KeyPair",
              "Type": "AWS::EC2::KeyPair::KeyName"
            },
           "SSHLocation" : {
              "Type": "String",
              "MinLength": "9"
            }
          }
        }

    ) }
    let(:template_attributes) { FactoryGirl.attributes_for(:stack_template_ec2, template_body: template_body) }
    let(:template) { described_class.create(template_attributes.stringify_keys) }

    it 'fetches parameters from template body' do
      expect(template.available_parameters).to be_a(Hash)
      expect(template.available_parameters).to include('KeyName', 'SSHLocation')
    end

    it 'parses description' do
      expect(template.available_parameters['KeyName']['description']).to eq 'Name of KeyPair'
      expect(template.available_parameters['SSHLocation']['description']).to be nil
    end
  end



end