package aws import ( "fmt" "testing" "github.com/hashicorp/terraform/helper/resource" "github.com/hashicorp/terraform/terraform" "github.com/mitchellh/goamz/ec2" ) func TestAccAWSInternetGateway(t *testing.T) { var v, v2 ec2.InternetGateway testNotEqual := func(*terraform.State) error { if len(v.Attachments) == 0 { return fmt.Errorf("IG A is not attached") } if len(v2.Attachments) == 0 { return fmt.Errorf("IG B is not attached") } id1 := v.Attachments[0].VpcId id2 := v2.Attachments[0].VpcId if id1 == id2 { return fmt.Errorf("Both attachment IDs are the same") } return nil } resource.Test(t, resource.TestCase{ PreCheck: func() { testAccPreCheck(t) }, Providers: testAccProviders, CheckDestroy: testAccCheckInternetGatewayDestroy, Steps: []resource.TestStep{ resource.TestStep{ Config: testAccInternetGatewayConfig, Check: resource.ComposeTestCheckFunc( testAccCheckInternetGatewayExists( "aws_internet_gateway.foo", &v), ), }, resource.TestStep{ Config: testAccInternetGatewayConfigChangeVPC, Check: resource.ComposeTestCheckFunc( testAccCheckInternetGatewayExists( "aws_internet_gateway.foo", &v2), testNotEqual, ), }, }, }) } func testAccCheckInternetGatewayDestroy(s *terraform.State) error { conn := testAccProvider.ec2conn for _, rs := range s.Resources { if rs.Type != "aws_internet_gateway" { continue } // Try to find the resource resp, err := conn.DescribeInternetGateways( []string{rs.ID}, ec2.NewFilter()) if err == nil { if len(resp.InternetGateways) > 0 { return fmt.Errorf("still exist.") } return nil } // Verify the error is what we want ec2err, ok := err.(*ec2.Error) if !ok { return err } if ec2err.Code != "InvalidInternetGatewayID.NotFound" { return err } } return nil } func testAccCheckInternetGatewayExists(n string, ig *ec2.InternetGateway) resource.TestCheckFunc { return func(s *terraform.State) error { rs, ok := s.Resources[n] if !ok { return fmt.Errorf("Not found: %s", n) } if rs.ID == "" { return fmt.Errorf("No ID is set") } conn := testAccProvider.ec2conn resp, err := conn.DescribeInternetGateways( []string{rs.ID}, ec2.NewFilter()) if err != nil { return err } if len(resp.InternetGateways) == 0 { return fmt.Errorf("InternetGateway not found") } *ig = resp.InternetGateways[0] return nil } } const testAccInternetGatewayConfig = ` resource "aws_vpc" "foo" { cidr_block = "10.1.0.0/16" } resource "aws_internet_gateway" "foo" { vpc_id = "${aws_vpc.foo.id}" } ` const testAccInternetGatewayConfigChangeVPC = ` resource "aws_vpc" "foo" { cidr_block = "10.1.0.0/16" } resource "aws_vpc" "bar" { cidr_block = "10.2.0.0/16" } resource "aws_internet_gateway" "foo" { vpc_id = "${aws_vpc.bar.id}" } `