github.com/gwilym/terraform@v0.3.8-0.20151231151641-c7573de75b19/builtin/providers/aws/resource_aws_cloudformation_stack_test.go

package aws

import (
	"fmt"
	"testing"

	"github.com/aws/aws-sdk-go/aws"
	"github.com/aws/aws-sdk-go/service/cloudformation"
	"github.com/hashicorp/terraform/helper/resource"
	"github.com/hashicorp/terraform/terraform"
)

func TestAccAWSCloudFormation_basic(t *testing.T) {
	var stack cloudformation.Stack

	resource.Test(t, resource.TestCase{
		PreCheck:     func() { testAccPreCheck(t) },
		Providers:    testAccProviders,
		CheckDestroy: testAccCheckAWSCloudFormationDestroy,
		Steps: []resource.TestStep{
			resource.TestStep{
				Config: testAccAWSCloudFormationConfig,
				Check: resource.ComposeTestCheckFunc(
					testAccCheckCloudFormationStackExists("aws_cloudformation_stack.network", &stack),
				),
			},
		},
	})
}

func TestAccAWSCloudFormation_defaultParams(t *testing.T) {
	var stack cloudformation.Stack

	resource.Test(t, resource.TestCase{
		PreCheck:     func() { testAccPreCheck(t) },
		Providers:    testAccProviders,
		CheckDestroy: testAccCheckAWSCloudFormationDestroy,
		Steps: []resource.TestStep{
			resource.TestStep{
				Config: testAccAWSCloudFormationConfig_defaultParams,
				Check: resource.ComposeTestCheckFunc(
					testAccCheckCloudFormationStackExists("aws_cloudformation_stack.asg-demo", &stack),
				),
			},
		},
	})
}

func TestAccAWSCloudFormation_allAttributes(t *testing.T) {
	var stack cloudformation.Stack

	resource.Test(t, resource.TestCase{
		PreCheck:     func() { testAccPreCheck(t) },
		Providers:    testAccProviders,
		CheckDestroy: testAccCheckAWSCloudFormationDestroy,
		Steps: []resource.TestStep{
			resource.TestStep{
				Config: testAccAWSCloudFormationConfig_allAttributes,
				Check: resource.ComposeTestCheckFunc(
					testAccCheckCloudFormationStackExists("aws_cloudformation_stack.full", &stack),
				),
			},
		},
	})
}

// Regression for https://github.com/hashicorp/terraform/issues/4332
func TestAccAWSCloudFormation_withParams(t *testing.T) {
	var stack cloudformation.Stack

	resource.Test(t, resource.TestCase{
		PreCheck:     func() { testAccPreCheck(t) },
		Providers:    testAccProviders,
		CheckDestroy: testAccCheckAWSCloudFormationDestroy,
		Steps: []resource.TestStep{
			resource.TestStep{
				Config: testAccAWSCloudFormationConfig_withParams,
				Check: resource.ComposeTestCheckFunc(
					testAccCheckCloudFormationStackExists("aws_cloudformation_stack.with_params", &stack),
				),
			},
			resource.TestStep{
				Config: testAccAWSCloudFormationConfig_withParams_modified,
				Check: resource.ComposeTestCheckFunc(
					testAccCheckCloudFormationStackExists("aws_cloudformation_stack.with_params", &stack),
				),
			},
		},
	})
}

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

		conn := testAccProvider.Meta().(*AWSClient).cfconn
		params := &cloudformation.DescribeStacksInput{
			StackName: aws.String(rs.Primary.ID),
		}
		resp, err := conn.DescribeStacks(params)
		if err != nil {
			return err
		}
		if len(resp.Stacks) == 0 {
			return fmt.Errorf("CloudFormation stack not found")
		}

		return nil
	}
}

func testAccCheckAWSCloudFormationDestroy(s *terraform.State) error {
	conn := testAccProvider.Meta().(*AWSClient).cfconn

	for _, rs := range s.RootModule().Resources {
		if rs.Type != "aws_cloudformation_stack" {
			continue
		}

		params := cloudformation.DescribeStacksInput{
			StackName: aws.String(rs.Primary.ID),
		}

		resp, err := conn.DescribeStacks(&params)

		if err != nil {
			return err
		}

		for _, s := range resp.Stacks {
			if *s.StackId == rs.Primary.ID && *s.StackStatus != "DELETE_COMPLETE" {
				return fmt.Errorf("CloudFormation stack still exists: %q", rs.Primary.ID)
			}
		}
	}

	return nil
}

var testAccAWSCloudFormationConfig = `
resource "aws_cloudformation_stack" "network" {
  name = "tf-networking-stack"
  template_body = <<STACK
{
  "Resources" : {
    "MyVPC": {
      "Type" : "AWS::EC2::VPC",
      "Properties" : {
        "CidrBlock" : "10.0.0.0/16",
        "Tags" : [
          {"Key": "Name", "Value": "Primary_CF_VPC"}
        ]
      }
    }
  },
  "Outputs" : {
    "DefaultSgId" : {
      "Description": "The ID of default security group",
      "Value" : { "Fn::GetAtt" : [ "MyVPC", "DefaultSecurityGroup" ]}
    },
    "VpcID" : {
      "Description": "The VPC ID",
      "Value" : { "Ref" : "MyVPC" }
    }
  }
}
STACK
}`

var testAccAWSCloudFormationConfig_defaultParams = `
resource "aws_cloudformation_stack" "asg-demo" {
  name = "tf-asg-demo-stack"
  template_body = <<BODY
{
    "Parameters": {
        "TopicName": {
            "Type": "String"
        },
        "VPCCIDR": {
            "Type": "String",
            "Default": "10.10.0.0/16"
        }
    },
    "Resources": {
        "NotificationTopic": {
            "Type": "AWS::SNS::Topic",
            "Properties": {
                "TopicName": {
                    "Ref": "TopicName"
                }
            }
        },
        "MyVPC": {
            "Type": "AWS::EC2::VPC",
            "Properties": {
                "CidrBlock": {
                    "Ref": "VPCCIDR"
                },
                "Tags": [
                    {
                        "Key": "Name",
                        "Value": "Primary_CF_VPC"
                    }
                ]
            }
        }
    },
    "Outputs": {
        "VPCCIDR": {
            "Value": {
                "Ref": "VPCCIDR"
            }
        }
    }
}
BODY

  parameters {
    TopicName = "ExampleTopic"
  }
}
`

var testAccAWSCloudFormationConfig_allAttributes = `
resource "aws_cloudformation_stack" "full" {
  name = "tf-full-stack"
  template_body = <<STACK
{
  "Resources" : {
    "MyVPC": {
      "Type" : "AWS::EC2::VPC",
      "Properties" : {
        "CidrBlock" : "10.0.0.0/16",
        "Tags" : [
          {"Key": "Name", "Value": "Primary_CF_VPC"}
        ]
      }
    }
  }
}
STACK

  capabilities = ["CAPABILITY_IAM"]
  notification_arns = ["${aws_sns_topic.cf-updates.arn}"]
  on_failure = "DELETE"
  timeout_in_minutes = 1
}

resource "aws_sns_topic" "cf-updates" {
  name = "tf-cf-notifications"
}
`

var tpl_testAccAWSCloudFormationConfig_withParams = `
resource "aws_cloudformation_stack" "with_params" {
  name = "tf-stack-with-params"
  parameters {
    VpcCIDR = "%s"
  }
  template_body = <<STACK
{
  "Parameters" : {
    "VpcCIDR" : {
      "Description" : "CIDR to be used for the VPC",
      "Type" : "String"
    }
  },
  "Resources" : {
    "MyVPC": {
      "Type" : "AWS::EC2::VPC",
      "Properties" : {
        "CidrBlock" : {"Ref": "VpcCIDR"},
        "Tags" : [
          {"Key": "Name", "Value": "Primary_CF_VPC"}
        ]
      }
    }
  }
}
STACK

  on_failure = "DELETE"
  timeout_in_minutes = 1
}
`

var testAccAWSCloudFormationConfig_withParams = fmt.Sprintf(
	tpl_testAccAWSCloudFormationConfig_withParams,
	"10.0.0.0/16")
var testAccAWSCloudFormationConfig_withParams_modified = fmt.Sprintf(
	tpl_testAccAWSCloudFormationConfig_withParams,
	"12.0.0.0/16")