fog--fog/spec/aws/requests/ec2/describe_instances_spec.rb

require File.dirname(__FILE__) + '/../../../spec_helper'

describe 'EC2.describe_instances' do
  describe 'success' do

    before(:each) do
      run_instances = ec2.run_instances('ami-5ee70037', 1, 1).body
      @instance_id = run_instances['instancesSet'].first['instanceId']
      @reservation_id = run_instances['reservationId']
    end

    after(:each) do
      ec2.terminate_instances([@instance_id])
    end

    it "should return proper attributes with no params" do
      actual = ec2.describe_instances
      reservation = actual.body['reservationSet'].select {|reservation| reservation['reservationId'] == @reservation_id}.first
      reservation['groupSet'].should be_an(Array)
      reservation['groupSet'].first.should be_a(String)
      reservation['ownerId'].should be_a(String)
      reservation['reservationId'].should be_a(String)
      instance = reservation['instancesSet'].select {|instance| instance['instanceId'] == @instance_id}.first
      instance['amiLaunchIndex'].should be_an(Integer)
      instance['dnsName'].should be_a(String)
      instance['imageId'].should be_a(String)
      instance['instanceId'].should be_a(String)
      instance['instanceState'].should be_a(Hash)
      instance['instanceState']['code'].should be_a(Integer)
      instance['instanceState']['name'].should be_a(String)
      instance['instanceType'].should be_a(String)
      instance['kernelId'].should be_a(String)
      instance['keyName'].should be_a(String) if instance['keyName']
      instance['launchTime'].should be_a(Time)
      instance['monitoring'].should be_a(Hash)
      [true, false].should include(instance['monitoring']['state'])
      instance['placement'].should be_a(Hash)
      instance['placement']['availabilityZone'].should be_a(String)
      instance['privateDnsName'].should be_a(String)
      instance['productCodes'].should be_an(Array)
      instance['productCodes'].first.should be_a(String) if instance['productCodes'].first
      instance['ramdiskId'].should be_a(String)
      instance['reason'].should be_a(String)
    end
  
    it "should return proper attributes with params" do
      actual = ec2.describe_instances(@instance_id)
      reservation = actual.body['reservationSet'].select {|reservation| reservation['reservationId'] == @reservation_id}.first
      reservation['groupSet'].should be_an(Array)
      reservation['groupSet'].first.should be_a(String)
      reservation['ownerId'].should be_a(String)
      reservation['reservationId'].should be_a(String)
      instance = reservation['instancesSet'].select {|instance| instance['instanceId'] == @instance_id}.first
      instance['amiLaunchIndex'].should be_an(Integer)
      instance['dnsName'].should be_a(String)
      instance['imageId'].should be_a(String)
      instance['instanceId'].should be_a(String)
      instance['instanceState'].should be_a(Hash)
      instance['instanceState']['code'].should be_a(Integer)
      instance['instanceState']['name'].should be_a(String)
      instance['instanceType'].should be_a(String)
      instance['kernelId'].should be_a(String)
      instance['keyName'].should be_a(String) if instance['keyName']
      instance['launchTime'].should be_a(Time)
      instance['monitoring'].should be_a(Hash)
      [true, false].should include(instance['monitoring']['state'])
      instance['placement'].should be_a(Hash)
      instance['placement']['availabilityZone'].should be_a(String)
      instance['privateDnsName'].should be_a(String)
      instance['productCodes'].should be_an(Array)
      instance['productCodes'].first.should be_a(String) if instance['productCodes'].first
      instance['ramdiskId'].should be_a(String)
      instance['reason'].should be_a(String)
    end

  end
  describe 'failure' do

    it 'should raise a BadRequest error if the instance does not exist' do
      lambda {
        ec2.describe_instances('i-00000000')
      }.should raise_error(Fog::Errors::BadRequest)
    end

  end
end