github.com/tarrant/terraform@v0.3.8-0.20150402012457-f68c9eee638e/builtin/providers/aws/resource_aws_network_interface_test.go

package aws

import (
	"fmt"
	"testing"

	"github.com/hashicorp/aws-sdk-go/aws"
	"github.com/hashicorp/aws-sdk-go/gen/ec2"
	"github.com/hashicorp/terraform/helper/resource"
	"github.com/hashicorp/terraform/terraform"
)

func TestAccAWSENI_basic(t *testing.T) {
	var conf ec2.NetworkInterface

	resource.Test(t, resource.TestCase{
		PreCheck:     func() { testAccPreCheck(t) },
		Providers:    testAccProviders,
		CheckDestroy: testAccCheckAWSENIDestroy,
		Steps: []resource.TestStep{
			resource.TestStep{
				Config: testAccAWSENIConfig,
				Check: resource.ComposeTestCheckFunc(
					testAccCheckAWSENIExists("aws_network_interface.bar", &conf),
					testAccCheckAWSENIAttributes(&conf),
					resource.TestCheckResourceAttr(
						"aws_network_interface.bar", "private_ips.#", "1"),
					resource.TestCheckResourceAttr(
						"aws_network_interface.bar", "tags.Name", "bar_interface"),
				),
			},
		},
	})
}

func TestAccAWSENI_attached(t *testing.T) {
	var conf ec2.NetworkInterface

	resource.Test(t, resource.TestCase{
		PreCheck:     func() { testAccPreCheck(t) },
		Providers:    testAccProviders,
		CheckDestroy: testAccCheckAWSENIDestroy,
		Steps: []resource.TestStep{
			resource.TestStep{
				Config: testAccAWSENIConfigWithAttachment,
				Check: resource.ComposeTestCheckFunc(
					testAccCheckAWSENIExists("aws_network_interface.bar", &conf),
					testAccCheckAWSENIAttributesWithAttachment(&conf),
					resource.TestCheckResourceAttr(
						"aws_network_interface.bar", "private_ips.#", "1"),
					resource.TestCheckResourceAttr(
						"aws_network_interface.bar", "tags.Name", "bar_interface"),
				),
			},
		},
	})
}

func testAccCheckAWSENIExists(n string, res *ec2.NetworkInterface) resource.TestCheckFunc {
	return func(s *terraform.State) error {
		rs, ok := s.RootModule().Resources[n]
		if !ok {
			return fmt.Errorf("Not found: %s", n)
		}

		if rs.Primary.ID == "" {
			return fmt.Errorf("No ENI ID is set")
		}

		ec2conn := testAccProvider.Meta().(*AWSClient).ec2conn
		describe_network_interfaces_request := &ec2.DescribeNetworkInterfacesRequest{
			NetworkInterfaceIDs: []string{rs.Primary.ID},
		}
		describeResp, err := ec2conn.DescribeNetworkInterfaces(describe_network_interfaces_request)

		if err != nil {
			return err
		}

		if len(describeResp.NetworkInterfaces) != 1 ||
			*describeResp.NetworkInterfaces[0].NetworkInterfaceID != rs.Primary.ID {
			return fmt.Errorf("ENI not found")
		}

		*res = describeResp.NetworkInterfaces[0]

		return nil
	}
}

func testAccCheckAWSENIAttributes(conf *ec2.NetworkInterface) resource.TestCheckFunc {
	return func(s *terraform.State) error {

		if conf.Attachment != nil {
			return fmt.Errorf("expected attachment to be nil")
		}

		if *conf.AvailabilityZone != "us-west-2a" {
			return fmt.Errorf("expected availability_zone to be us-west-2a, but was %s", *conf.AvailabilityZone)
		}

		if len(conf.Groups) != 1 && *conf.Groups[0].GroupName != "foo" {
			return fmt.Errorf("expected security group to be foo, but was %#v", conf.Groups)
		}

		if *conf.PrivateIPAddress != "172.16.10.100" {
			return fmt.Errorf("expected private ip to be 172.16.10.100, but was %s", *conf.PrivateIPAddress)
		}

		if len(conf.TagSet) == 0 {
			return fmt.Errorf("expected tags")
		}

		return nil
	}
}

func testAccCheckAWSENIAttributesWithAttachment(conf *ec2.NetworkInterface) resource.TestCheckFunc {
	return func(s *terraform.State) error {

		if conf.Attachment == nil {
			return fmt.Errorf("expected attachment to be set, but was nil")
		}

		if *conf.Attachment.DeviceIndex != 1 {
			return fmt.Errorf("expected attachment device index to be 1, but was %d", *conf.Attachment.DeviceIndex)
		}

		if *conf.AvailabilityZone != "us-west-2a" {
			return fmt.Errorf("expected availability_zone to be us-west-2a, but was %s", *conf.AvailabilityZone)
		}

		if len(conf.Groups) != 1 && *conf.Groups[0].GroupName != "foo" {
			return fmt.Errorf("expected security group to be foo, but was %#v", conf.Groups)
		}

		if *conf.PrivateIPAddress != "172.16.10.100" {
			return fmt.Errorf("expected private ip to be 172.16.10.100, but was %s", *conf.PrivateIPAddress)
		}

		return nil
	}
}

func testAccCheckAWSENIDestroy(s *terraform.State) error {
	for _, rs := range s.RootModule().Resources {
		if rs.Type != "aws_network_interface" {
			continue
		}

		ec2conn := testAccProvider.Meta().(*AWSClient).ec2conn
		describe_network_interfaces_request := &ec2.DescribeNetworkInterfacesRequest{
			NetworkInterfaceIDs: []string{rs.Primary.ID},
		}
		_, err := ec2conn.DescribeNetworkInterfaces(describe_network_interfaces_request)

		if err != nil {
			if ec2err, ok := err.(aws.APIError); ok && ec2err.Code == "InvalidNetworkInterfaceID.NotFound" {
				return nil
			}

			return err
		}
	}

	return nil
}

const testAccAWSENIConfig = `
resource "aws_vpc" "foo" {
    cidr_block = "172.16.0.0/16"    
}

resource "aws_subnet" "foo" {
    vpc_id = "${aws_vpc.foo.id}"
    cidr_block = "172.16.10.0/24"
    availability_zone = "us-west-2a"
}

resource "aws_security_group" "foo" {
  vpc_id = "${aws_vpc.foo.id}"
  description = "foo"
  name = "foo"  
}

resource "aws_network_interface" "bar" {
    subnet_id = "${aws_subnet.foo.id}"   
    private_ips = ["172.16.10.100"]
    security_groups = ["${aws_security_group.foo.id}"]    
    tags {
        Name = "bar_interface"
    }
}
`

const testAccAWSENIConfigWithAttachment = `
resource "aws_vpc" "foo" {
    cidr_block = "172.16.0.0/16"    
}

resource "aws_subnet" "foo" {
    vpc_id = "${aws_vpc.foo.id}"
    cidr_block = "172.16.10.0/24"
    availability_zone = "us-west-2a"
}

resource "aws_subnet" "bar" {
    vpc_id = "${aws_vpc.foo.id}"
    cidr_block = "172.16.11.0/24"
    availability_zone = "us-west-2a"
}

resource "aws_security_group" "foo" {
  vpc_id = "${aws_vpc.foo.id}"
  description = "foo"
  name = "foo"  
}

resource "aws_instance" "foo" {
	ami = "ami-c5eabbf5"
	instance_type = "t2.micro"
	subnet_id = "${aws_subnet.bar.id}"
	associate_public_ip_address = false
	private_ip = "172.16.11.50"
}

resource "aws_network_interface" "bar" {
    subnet_id = "${aws_subnet.foo.id}"   
    private_ips = ["172.16.10.100"]
    security_groups = ["${aws_security_group.foo.id}"]    
    attachment {
    	instance = "${aws_instance.foo.id}"
    	device_index = 1
    }
    tags {
        Name = "bar_interface"
    }
}
`