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goformation_test.go
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package goformation_test
import (
"fmt"
"encoding/json"
"github.com/sanathkr/yaml"
"github.com/awslabs/goformation/v4"
"github.com/awslabs/goformation/v4/cloudformation"
"github.com/awslabs/goformation/v4/cloudformation/lambda"
"github.com/awslabs/goformation/v4/cloudformation/policies"
"github.com/awslabs/goformation/v4/cloudformation/route53"
"github.com/awslabs/goformation/v4/cloudformation/s3"
"github.com/awslabs/goformation/v4/cloudformation/serverless"
"github.com/awslabs/goformation/v4/cloudformation/sns"
"github.com/awslabs/goformation/v4/intrinsics"
. "github.com/onsi/ginkgo"
. "github.com/onsi/gomega"
. "github.com/onsi/gomega/gstruct"
)
func Example_to_json() {
// Create a new CloudFormation template
template := cloudformation.NewTemplate()
// Create an Amazon SNS topic, with a unique name based off the current timestamp
template.Resources["MyTopic"] = &sns.Topic{
TopicName: "my-topic-1575143839",
}
// Create a subscription, connected to our topic, that forwards notifications to an email address
template.Resources["MyTopicSubscription"] = &sns.Subscription{
TopicArn: cloudformation.Ref("MyTopic"),
Protocol: "email",
Endpoint: "[email protected]",
}
// Let's see the JSON AWS CloudFormation template
j, err := template.JSON()
if err != nil {
fmt.Printf("Failed to generate JSON: %s\n", err)
} else {
fmt.Printf("%s\n", string(j))
}
// Output:
// {
// "AWSTemplateFormatVersion": "2010-09-09",
// "Resources": {
// "MyTopic": {
// "Properties": {
// "TopicName": "my-topic-1575143839"
// },
// "Type": "AWS::SNS::Topic"
// },
// "MyTopicSubscription": {
// "Properties": {
// "Endpoint": "[email protected]",
// "Protocol": "email",
// "TopicArn": {
// "Ref": "MyTopic"
// }
// },
// "Type": "AWS::SNS::Subscription"
// }
// }
// }
}
func Example_to_yaml() {
// Create a new CloudFormation template
template := cloudformation.NewTemplate()
// Create an Amazon SNS topic, with a unique name based off the current timestamp
template.Resources["MyTopic"] = &sns.Topic{
TopicName: "my-topic-1575143970",
}
// Create a subscription, connected to our topic, that forwards notifications to an email address
template.Resources["MyTopicSubscription"] = &sns.Subscription{
TopicArn: cloudformation.Ref("MyTopic"),
Protocol: "email",
Endpoint: "[email protected]",
}
// Let's see the YAML AWS CloudFormation template
y, err := template.YAML()
if err != nil {
fmt.Printf("Failed to generate YAML: %s\n", err)
} else {
fmt.Printf("%s\n", string(y))
}
// Output:
// AWSTemplateFormatVersion: 2010-09-09
// Resources:
// MyTopic:
// Properties:
// TopicName: my-topic-1575143970
// Type: AWS::SNS::Topic
// MyTopicSubscription:
// Properties:
// Endpoint: [email protected]
// Protocol: email
// TopicArn:
// Ref: MyTopic
// Type: AWS::SNS::Subscription
}
func Example_to_go() {
// Open a template from file (can be JSON or YAML)
template, err := goformation.Open("example/yaml-to-go/template.yaml")
if err != nil {
fmt.Printf("There was an error processing the template: %s", err)
return
}
// You can extract all resources of a certain type
// Each AWS CloudFormation resource is a strongly typed struct
topics := template.GetAllSNSTopicResources()
for name, topic := range topics {
// E.g. Found a AWS::SNS::Topic with Logical ID ExampleTopic and TopicName 'example'
fmt.Printf("Found a %s with Logical ID %s and TopicName %s\n", topic.AWSCloudFormationType(), name, topic.TopicName)
}
// You can also search for specific resources by their logicalId
search := "ExampleTopic"
topic, err := template.GetSNSTopicWithName(search)
if err != nil {
fmt.Printf("SNS topic with logical ID %s not found", search)
return
}
// E.g. Found a AWS::Serverless::Function named GetHelloWorld (runtime: nodejs6.10)
fmt.Printf("Found a %s with Logical ID %s and TopicName %s\n", topic.AWSCloudFormationType(), search, topic.TopicName)
// Output:
// Found a AWS::SNS::Topic with Logical ID ExampleTopic and TopicName example
// Found a AWS::SNS::Topic with Logical ID ExampleTopic and TopicName example
}
var _ = Describe("Goformation", func() {
Context("with a Serverless function matching 2016-10-31 specification", func() {
template, err := goformation.Open("test/yaml/aws-serverless-function-2016-10-31.yaml")
It("should successfully validate the SAM template", func() {
Expect(err).To(BeNil())
Expect(template).ShouldNot(BeNil())
})
functions := template.GetAllServerlessFunctionResources()
It("should have exactly one function", func() {
Expect(functions).To(HaveLen(1))
Expect(functions).To(HaveKey("Function20161031"))
})
f := functions["Function20161031"]
It("should correctly parse all of the function properties", func() {
Expect(f.Handler).To(Equal("file.method"))
Expect(f.Runtime).To(Equal("nodejs"))
Expect(f.FunctionName).To(Equal("functionname"))
Expect(f.Description).To(Equal("description"))
Expect(f.MemorySize).To(Equal(128))
Expect(f.Timeout).To(Equal(30))
Expect(f.Role).To(Equal("aws::arn::123456789012::some/role"))
Expect((*f.Policies.SAMPolicyTemplateArray)[0].DynamoDBCrudPolicy.TableName).To(Equal("table_arn"))
Expect(f.Environment).ToNot(BeNil())
Expect(f.Environment.Variables).To(HaveKeyWithValue("NAME", "VALUE"))
})
It("should correctly parse all of the function API event sources/endpoints", func() {
Expect(f.Events).ToNot(BeNil())
Expect(f.Events).To(HaveKey("TestApi"))
Expect(f.Events["TestApi"].Type).To(Equal("Api"))
Expect(f.Events["TestApi"].Properties.ApiEvent).ToNot(BeNil())
event := f.Events["TestApi"].Properties.ApiEvent
Expect(event.Method).To(Equal("any"))
Expect(event.Path).To(Equal("/testing"))
})
It("should correctly parse all of the function S3 event source", func() {
Expect(f.Events).ToNot(BeNil())
Expect(f.Events).To(HaveKey("TestS3"))
Expect(f.Events["TestS3"].Type).To(Equal("S3"))
Expect(f.Events["TestS3"].Properties.S3Event).ToNot(BeNil())
event := f.Events["TestS3"].Properties.S3Event
Expect(event.Bucket).To(Equal("my-photo-bucket"))
Expect(event.Events.String).To(PointTo(Equal("s3:ObjectCreated:*")))
Expect(event.Filter.S3Key.Rules).To(HaveLen(1))
Expect(event.Filter.S3Key.Rules[0].Name).To(Equal("prefix|suffix"))
Expect(event.Filter.S3Key.Rules[0].Value).To(Equal("my-prefix|my-suffix"))
})
})
Context("with a JSON template that contains a resource with tags", func() {
template, err := goformation.Open("test/json/resource-with-tags.json")
It("should successfully validate the template", func() {
Expect(err).To(BeNil())
Expect(template).ShouldNot(BeNil())
})
resources := template.GetAllAutoScalingAutoScalingGroupResources()
It("should have exactly one resource", func() {
Expect(resources).To(HaveLen(1))
Expect(resources).To(HaveKey("EcsClusterDefaultAutoScalingGroupASGC1A785DB"))
})
asg := resources["EcsClusterDefaultAutoScalingGroupASGC1A785DB"]
It("should have exactly one tag defined", func() {
Expect(asg.Tags).To(HaveLen(1))
})
It("should have the correct tag properties set", func() {
Expect(asg.Tags[0].PropagateAtLaunch).To(Equal(true))
Expect(asg.Tags[0].Key).To(Equal("Name"))
Expect(asg.Tags[0].Value).To(Equal("aws-ecs-integ-ecs/EcsCluster/DefaultAutoScalingGroup"))
})
})
Context("with a Custom Resource template", func() {
template, err := goformation.Open("test/yaml/custom-resource.yaml")
It("should successfully validate the template", func() {
Expect(err).To(BeNil())
Expect(template).ShouldNot(BeNil())
})
resources := template.GetAllCustomResources()
It("should have exactly one resource", func() {
Expect(resources).To(HaveLen(1))
Expect(resources).To(HaveKey("MyCustomResource"))
})
It("should correctly Marshal the custom resource", func() {
data, err := template.JSON()
Expect(err).To(BeNil())
var result map[string]interface{}
if err := json.Unmarshal(data, &result); err != nil {
Fail(err.Error())
}
resources, ok := result["Resources"].(map[string]interface{})
Expect(ok).To(BeTrue())
Expect(resources).To(HaveLen(1))
Expect(resources).To(HaveKey("MyCustomResource"))
mcr := resources["MyCustomResource"].(map[string]interface{})
Expect(mcr["Properties"]).To(HaveKey("CustomProperty"))
})
})
Context("with an AWS CloudFormation template that contains multiple resources", func() {
Context("described as Go structs", func() {
template := cloudformation.NewTemplate()
template.Resources["MySNSTopic"] = &sns.Topic{
DisplayName: "test-sns-topic-display-name",
TopicName: "test-sns-topic-name",
Subscription: []sns.Topic_Subscription{
sns.Topic_Subscription{
Endpoint: "test-sns-topic-subscription-endpoint",
Protocol: "test-sns-topic-subscription-protocol",
},
},
}
template.Resources["MyRoute53HostedZone"] = &route53.HostedZone{
Name: "example.com",
}
topics := template.GetAllSNSTopicResources()
It("should have one AWS::SNS::Topic resource", func() {
Expect(topics).To(HaveLen(1))
Expect(topics).To(HaveKey("MySNSTopic"))
})
topic, err := template.GetSNSTopicWithName("MySNSTopic")
It("should be able to find the AWS::SNS::Topic by name", func() {
Expect(topic).ToNot(BeNil())
Expect(err).To(BeNil())
})
It("should have the correct AWS::SNS::Topic values", func() {
Expect(topic.DisplayName).To(Equal("test-sns-topic-display-name"))
Expect(topic.TopicName).To(Equal("test-sns-topic-name"))
Expect(topic.Subscription).To(HaveLen(1))
Expect(topic.Subscription[0].Endpoint).To(Equal("test-sns-topic-subscription-endpoint"))
Expect(topic.Subscription[0].Protocol).To(Equal("test-sns-topic-subscription-protocol"))
})
zones := template.GetAllRoute53HostedZoneResources()
It("should have one AWS::Route53::HostedZone resource", func() {
Expect(zones).To(HaveLen(1))
Expect(zones).To(HaveKey("MyRoute53HostedZone"))
})
zone, err := template.GetRoute53HostedZoneWithName("MyRoute53HostedZone")
It("should be able to find the AWS::Route53::HostedZone by name", func() {
Expect(zone).ToNot(BeNil())
Expect(err).To(BeNil())
})
It("should have the correct AWS::Route53::HostedZone values", func() {
Expect(zone.Name).To(Equal("example.com"))
})
})
Context("described as JSON", func() {
template := []byte(`{"AWSTemplateFormatVersion":"2010-09-09","Resources":{"MyRoute53HostedZone":{"Type":"AWS::Route53::HostedZone","Properties":{"Name":"example.com"}},"MySNSTopic":{"Type":"AWS::SNS::Topic","Properties":{"DisplayName":"test-sns-topic-display-name","Subscription":[{"Endpoint":"test-sns-topic-subscription-endpoint","Protocol":"test-sns-topic-subscription-protocol"}],"TopicName":"test-sns-topic-name"}}}}`)
expected := cloudformation.NewTemplate()
expected.Resources["MySNSTopic"] = &sns.Topic{
DisplayName: "test-sns-topic-display-name",
TopicName: "test-sns-topic-name",
Subscription: []sns.Topic_Subscription{
sns.Topic_Subscription{
Endpoint: "test-sns-topic-subscription-endpoint",
Protocol: "test-sns-topic-subscription-protocol",
},
},
}
expected.Resources["MyRoute53HostedZone"] = &route53.HostedZone{
Name: "example.com",
}
result, err := goformation.ParseJSON(template)
It("should marshal to Go structs successfully", func() {
Expect(err).To(BeNil())
})
topics := result.GetAllSNSTopicResources()
It("should have one AWS::SNS::Topic resource", func() {
Expect(topics).To(HaveLen(1))
Expect(topics).To(HaveKey("MySNSTopic"))
})
topic, err := result.GetSNSTopicWithName("MySNSTopic")
It("should be able to find the AWS::SNS::Topic by name", func() {
Expect(topic).ToNot(BeNil())
Expect(err).To(BeNil())
})
It("should have the correct AWS::SNS::Topic values", func() {
Expect(topic.DisplayName).To(Equal("test-sns-topic-display-name"))
Expect(topic.TopicName).To(Equal("test-sns-topic-name"))
Expect(topic.Subscription).To(HaveLen(1))
Expect(topic.Subscription[0].Endpoint).To(Equal("test-sns-topic-subscription-endpoint"))
Expect(topic.Subscription[0].Protocol).To(Equal("test-sns-topic-subscription-protocol"))
})
zones := result.GetAllRoute53HostedZoneResources()
It("should have one AWS::Route53::HostedZone resource", func() {
Expect(zones).To(HaveLen(1))
Expect(zones).To(HaveKey("MyRoute53HostedZone"))
})
zone, err := result.GetRoute53HostedZoneWithName("MyRoute53HostedZone")
It("should be able to find the AWS::Route53::HostedZone by name", func() {
Expect(zone).ToNot(BeNil())
Expect(err).To(BeNil())
})
It("should have the correct AWS::Route53::HostedZone values", func() {
Expect(zone.Name).To(Equal("example.com"))
})
})
})
Context("with the official AWS SAM example templates", func() {
inputs := []string{
"test/yaml/sam-official-samples/alexa_skill/template.yaml",
"test/yaml/sam-official-samples/api_backend/template.yaml",
"test/yaml/sam-official-samples/api_swagger_cors/template.yaml",
"test/yaml/sam-official-samples/encryption_proxy/template.yaml",
"test/yaml/sam-official-samples/hello_world/template.yaml",
"test/yaml/sam-official-samples/inline_swagger/template.yaml",
"test/yaml/sam-official-samples/iot_backend/template.yaml",
"test/yaml/sam-official-samples/s3_processor/template.yaml",
"test/yaml/sam-official-samples/schedule/template.yaml",
"test/yaml/sam-official-samples/stream_processor/template.yaml",
}
for _, filename := range inputs {
Context("including "+filename, func() {
template, err := goformation.Open(filename)
fmt.Printf("file: %s err: %v\n", filename, err)
It("should successfully parse the SAM template", func() {
Expect(err).To(BeNil())
Expect(template).ShouldNot(BeNil())
})
})
}
})
Context("with the default AWS CodeStar templates", func() {
inputs := []string{
"test/yaml/codestar/nodejs.yml",
"test/yaml/codestar/python.yml",
"test/yaml/codestar/java.yml",
}
for _, filename := range inputs {
Context("including "+filename, func() {
template, err := goformation.Open(filename)
It("should successfully validate the SAM template", func() {
Expect(err).To(BeNil())
Expect(template).ShouldNot(BeNil())
})
})
}
})
// pmaddox@ 2017-08-17:
// Commented out until we have support for YAML tag intrinsic functions (e.g. !Sub)
Context("with a YAML template containing intrinsic tags (e.g. !Sub)", func() {
template, err := goformation.Open("test/yaml/yaml-intrinsic-tags.yaml")
It("should successfully validate the SAM template", func() {
Expect(err).To(BeNil())
Expect(template).ShouldNot(PointTo(BeNil()))
})
function, err := template.GetServerlessFunctionWithName("IntrinsicFunctionTest")
It("should have a function named 'IntrinsicFunctionTest'", func() {
Expect(function).To(Not(BeNil()))
Expect(err).To(BeNil())
})
It("it should have the correct values", func() {
Expect(function.Runtime).To(Equal("4.3"))
Expect(function.Timeout).To(Equal(10))
})
})
Context("with a Serverless template containing different CORS configuration formats", func() {
template, err := goformation.Open("test/yaml/aws-serverless-api-string-or-cors-configuration.yaml")
It("should successfully parse the template", func() {
Expect(err).To(BeNil())
Expect(template).ShouldNot(BeNil())
})
apis := template.GetAllServerlessApiResources()
It("should have exactly two APIs", func() {
Expect(apis).To(HaveLen(2))
Expect(apis).To(HaveKey("RestApiWithCorsConfiguration"))
Expect(apis).To(HaveKey("RestApiWithCorsString"))
})
api1 := apis["RestApiWithCorsConfiguration"]
It("should parse a Cors configuration object", func() {
Expect(api1.Cors.CorsConfiguration.AllowHeaders).To(Equal("'Authorization,authorization'"))
Expect(api1.Cors.CorsConfiguration.AllowOrigin).To(Equal("'*'"))
})
api2 := apis["RestApiWithCorsString"]
It("should parse a Cors string", func() {
Expect(api2.Cors.String).To(PointTo(Equal("'www.example.com'")))
})
})
Context("with a Serverless template containing different CodeUri formats", func() {
template, err := goformation.Open("test/yaml/aws-serverless-function-string-or-s3-location.yaml")
It("should successfully parse the template", func() {
Expect(err).To(BeNil())
Expect(template).ShouldNot(BeNil())
})
functions := template.GetAllServerlessFunctionResources()
It("should have exactly three functions", func() {
Expect(functions).To(HaveLen(3))
Expect(functions).To(HaveKey("CodeUriWithS3LocationSpecifiedAsString"))
Expect(functions).To(HaveKey("CodeUriWithS3LocationSpecifiedAsObject"))
Expect(functions).To(HaveKey("CodeUriWithString"))
})
f1 := functions["CodeUriWithS3LocationSpecifiedAsString"]
It("should parse a CodeUri property with an S3 location specified as a string", func() {
Expect(f1.CodeUri.String).To(PointTo(Equal("s3://testbucket/testkey.zip")))
})
f2 := functions["CodeUriWithS3LocationSpecifiedAsObject"]
It("should parse a CodeUri property with an S3 location specified as an object", func() {
Expect(f2.CodeUri.S3Location.Key).To(Equal("testkey.zip"))
Expect(f2.CodeUri.S3Location.Version).To(Equal(5))
})
f3 := functions["CodeUriWithString"]
It("should parse a CodeUri property with a string", func() {
Expect(f3.CodeUri.String).To(PointTo(Equal("./testfolder")))
})
})
Context("with a template defined as Go code", func() {
template := &cloudformation.Template{
Resources: cloudformation.Resources{
"MyLambdaFunction": &lambda.Function{
Handler: "nodejs6.10",
},
},
}
functions := template.GetAllLambdaFunctionResources()
It("should be able to retrieve all Lambda functions with GetAllLambdaFunction(template)", func() {
Expect(functions).To(HaveLen(1))
})
function, err := template.GetLambdaFunctionWithName("MyLambdaFunction")
It("should be able to retrieve a specific Lambda function with GetLambdaFunctionWithName(template, name)", func() {
Expect(err).To(BeNil())
Expect(function).To(BeAssignableToTypeOf(&lambda.Function{}))
})
It("should have the correct Handler property", func() {
Expect(function.Handler).To(Equal("nodejs6.10"))
})
})
Context("with a template that defines an AWS::Serverless::Function", func() {
Context("that has a CodeUri property set as an S3 Location", func() {
template := &cloudformation.Template{
Resources: cloudformation.Resources{
"MySAMFunction": &serverless.Function{
Handler: "nodejs6.10",
CodeUri: &serverless.Function_CodeUri{
S3Location: &serverless.Function_S3Location{
Bucket: "test-bucket",
Key: "test-key",
Version: 100,
},
},
},
},
}
function, err := template.GetServerlessFunctionWithName("MySAMFunction")
It("should have an AWS::Serverless::Function called MySAMFunction", func() {
Expect(function).ToNot(BeNil())
Expect(err).To(BeNil())
})
It("should have the correct S3 bucket/key/version", func() {
Expect(function.CodeUri.S3Location.Bucket).To(Equal("test-bucket"))
Expect(function.CodeUri.S3Location.Key).To(Equal("test-key"))
Expect(function.CodeUri.S3Location.Version).To(Equal(100))
})
})
Context("that has a CodeUri property set as a string", func() {
codeuri := "./some-folder"
template := &cloudformation.Template{
Resources: cloudformation.Resources{
"MySAMFunction": &serverless.Function{
Handler: "nodejs6.10",
CodeUri: &serverless.Function_CodeUri{
String: &codeuri,
},
},
},
}
function, err := template.GetServerlessFunctionWithName("MySAMFunction")
It("should have an AWS::Serverless::Function called MySAMFunction", func() {
Expect(function).ToNot(BeNil())
Expect(err).To(BeNil())
})
It("should have the correct CodeUri", func() {
Expect(function.CodeUri.String).To(PointTo(Equal("./some-folder")))
})
})
})
Context("with a YAML template that contains AWS::Serverless::SimpleTable resource(s)", func() {
template, err := goformation.Open("test/yaml/aws-serverless-simpletable.yaml")
It("should parse the template successfully", func() {
Expect(template).ToNot(BeNil())
Expect(err).To(BeNil())
})
table, err := template.GetServerlessSimpleTableWithName("TestSimpleTable")
It("should have a table named 'TestSimpleTable'", func() {
Expect(table).ToNot(BeNil())
Expect(err).To(BeNil())
})
It("should have a primary key set", func() {
Expect(table.PrimaryKey).ToNot(BeNil())
})
It("should have the correct value for the primary key name", func() {
Expect(table.PrimaryKey.Name).To(Equal("test-primary-key-name"))
})
It("should have the correct value for the primary key type", func() {
Expect(table.PrimaryKey.Type).To(Equal("test-primary-key-type"))
})
It("should have provisioned throughput set", func() {
Expect(table.ProvisionedThroughput).ToNot(BeNil())
})
It("should have the correct value for ReadCapacityUnits", func() {
Expect(table.ProvisionedThroughput.ReadCapacityUnits).To(Equal(100))
})
It("should have the correct value for WriteCapacityUnits", func() {
Expect(table.ProvisionedThroughput.WriteCapacityUnits).To(Equal(200))
})
It("should have a table named 'TestSimpleTableNoProperties'", func() {
nopropertiesTable, err := template.GetServerlessSimpleTableWithName("TestSimpleTableNoProperties")
Expect(nopropertiesTable).ToNot(BeNil())
Expect(err).To(BeNil())
})
It("should have the correct DeletionPolicy", func() {
Expect(table.AWSCloudFormationDeletionPolicy).To(Equal(policies.DeletionPolicy("Retain")))
})
})
Context("with a YAML template that contains AWS::Serverless::Api resource(s)", func() {
template, err := goformation.Open("test/yaml/aws-serverless-api.yaml")
It("should parse the template successfully", func() {
Expect(template).ToNot(BeNil())
Expect(err).To(BeNil())
})
api1, err := template.GetServerlessApiWithName("ServerlessApiWithDefinitionUriAsString")
It("should have an AWS::Serverless::Api named 'ServerlessApiWithDefinitionUriAsString'", func() {
Expect(api1).ToNot(BeNil())
Expect(err).To(BeNil())
})
It("should have the correct value for Name", func() {
Expect(api1.Name).To(Equal("test-name"))
})
It("should have the correct value for StageName", func() {
Expect(api1.StageName).To(Equal("test-stage-name"))
})
It("should have the correct value for DefinitionUri", func() {
Expect(api1.DefinitionUri.String).To(PointTo(Equal("test-definition-uri")))
})
It("should have the correct value for CacheClusterEnabled", func() {
Expect(api1.CacheClusterEnabled).To(Equal(true))
})
It("should have the correct value for CacheClusterSize", func() {
Expect(api1.CacheClusterSize).To(Equal("test-cache-cluster-size"))
})
It("should have the correct value for Variables", func() {
Expect(api1.Variables).To(HaveKeyWithValue("NAME", "VALUE"))
})
api2, err := template.GetServerlessApiWithName("ServerlessApiWithDefinitionUriAsS3Location")
It("should have an AWS::Serverless::Api named 'ServerlessApiWithDefinitionUriAsS3Location'", func() {
Expect(api2).ToNot(BeNil())
Expect(err).To(BeNil())
})
It("should have the correct value for DefinitionUri", func() {
Expect(api2.DefinitionUri.S3Location.Bucket).To(Equal("test-bucket"))
Expect(api2.DefinitionUri.S3Location.Key).To(Equal("test-key"))
Expect(api2.DefinitionUri.S3Location.Version).To(Equal(1))
})
api3, err := template.GetServerlessApiWithName("ServerlessApiWithDefinitionBodyAsJSON")
It("should have an AWS::Serverless::Api named 'ServerlessApiWithDefinitionBodyAsJSON'", func() {
Expect(api3).ToNot(BeNil())
Expect(err).To(BeNil())
})
It("should have the correct value for DefinitionBody", func() {
Expect(api3.DefinitionBody).To(Equal("{\n \"DefinitionKey\": \"test-definition-value\"\n}\n"))
})
api4, err := template.GetServerlessApiWithName("ServerlessApiWithDefinitionBodyAsYAML")
It("should have an AWS::Serverless::Api named 'ServerlessApiWithDefinitionBodyAsYAML'", func() {
Expect(api4).ToNot(BeNil())
Expect(err).To(BeNil())
})
It("should have the correct value for DefinitionBody", func() {
var expected map[string]interface{}
expected = map[string]interface{}{
"DefinitionKey": "test-definition-value",
}
Expect(api4.DefinitionBody).To(Equal(expected))
})
api5, err := template.GetServerlessApiWithName("ServerlessApiWithAccessLogSettingAsYAML")
It("should have an AWS::Serverless::Api named 'ServerlessApiWithAccessLogSettingAsYAML'", func() {
Expect(api5).ToNot(BeNil())
Expect(err).To(BeNil())
})
It("should have the correct value for AccessLogSetting", func() {
Expect(api5.AccessLogSetting.DestinationArn).To(Equal("arn:test"))
Expect(api5.AccessLogSetting.Format).To(Equal("{customKey: $context.Key}"))
})
})
Context("with a YAML template with single transform macro", func() {
template, err := goformation.Open("test/yaml/transform-single.yaml")
It("should parse the template successfully", func() {
Expect(template).ToNot(BeNil())
Expect(err).To(BeNil())
})
It("should parse transform macro into String field", func() {
Expect(*template.Transform.String).To(Equal("MyTranformMacro"))
})
It("should StringArray remain nil", func() {
Expect(template.Transform.StringArray).To(BeNil())
})
})
Context("with a YAML template with multiple transform macros", func() {
template, err := goformation.Open("test/yaml/transform-multiple.yaml")
It("should parse the template successfully", func() {
Expect(template).ToNot(BeNil())
Expect(err).To(BeNil())
})
It("should parse transform macro into StringArray field", func() {
Expect(*template.Transform.StringArray).To(Equal([]string{"FirstMacro", "SecondMacro"}))
})
It("should String remain nil", func() {
Expect(template.Transform.String).To(BeNil())
})
})
Context("with a YAML template with paramter overrides", func() {
template, err := goformation.OpenWithOptions("test/yaml/aws-serverless-function-env-vars.yaml", &intrinsics.ProcessorOptions{
ParameterOverrides: map[string]interface{}{"ExampleParameter": "SomeNewValue"},
})
It("should successfully validate the SAM template", func() {
Expect(err).To(BeNil())
Expect(template).ShouldNot(BeNil())
})
function, err := template.GetServerlessFunctionWithName("IntrinsicEnvironmentVariableTestFunction")
It("should have a function named 'IntrinsicEnvironmentVariableTestFunction'", func() {
Expect(function).To(Not(BeNil()))
Expect(err).To(BeNil())
})
It("it should have the correct values", func() {
Expect(function.Environment.Variables).To(HaveKeyWithValue("REF_ENV_VAR", "SomeNewValue"))
})
})
Context("with a SNS event source", func() {
event := serverless.Function_Properties{
SNSEvent: &serverless.Function_SNSEvent{
Topic: "MyTopic",
},
}
It("should marshal properties correctly", func() {
bytes, err := event.MarshalJSON()
Expect(err).To(BeNil())
Expect(string(bytes)).To(Equal(`{"Topic":"MyTopic"}`))
})
})
Context("with an SNS event source created from JSON", func() {
eventString := `{"Topic":"MyTopic"}`
eventJson := []byte(eventString)
event := serverless.Function_Properties{}
event.UnmarshalJSON(eventJson)
It("should marshal properties correctly", func() {
bytes, err := event.MarshalJSON()
Expect(err).To(BeNil())
Expect(string(bytes)).To(Equal(eventString))
})
})
Context("with a template that contains a reference to another resource within the template", func() {
template := &cloudformation.Template{
Resources: cloudformation.Resources{
"TestBucket": &s3.Bucket{
BucketName: "test-bucket",
},
"TestBucketPolicy": &s3.BucketPolicy{
Bucket: cloudformation.Ref("TestBucket"),
},
},
}
It("should have the correct reference object when converted to JSON", func() {
data, err := template.JSON()
Expect(err).To(BeNil())
var result map[string]interface{}
if err := json.Unmarshal(data, &result); err != nil {
Fail(err.Error())
}
resources, ok := result["Resources"].(map[string]interface{})
Expect(ok).To(BeTrue())
bucket, ok := resources["TestBucketPolicy"].(map[string]interface{})
Expect(ok).To(BeTrue())
properties, ok := bucket["Properties"].(map[string]interface{})
Expect(ok).To(BeTrue())
reference, ok := properties["Bucket"].(map[string]interface{})
Expect(ok).To(BeTrue())
Expect(reference["Ref"]).To(Equal("TestBucket"))
})
It("should have the correct reference object when converted to YAML", func() {
data, err := template.YAML()
Expect(err).To(BeNil())
var result map[string]interface{}
if err := yaml.Unmarshal(data, &result); err != nil {
Fail(err.Error())
}
resources, ok := result["Resources"].(map[string]interface{})
Expect(ok).To(BeTrue())
bucket, ok := resources["TestBucketPolicy"].(map[string]interface{})
Expect(ok).To(BeTrue())
properties, ok := bucket["Properties"].(map[string]interface{})
Expect(ok).To(BeTrue())
reference, ok := properties["Bucket"].(map[string]interface{})
Expect(ok).To(BeTrue())
Expect(reference["Ref"]).To(Equal("TestBucket"))
})
})
Context("with a template that is composed with all of the intrinsics", func() {
tests := []struct {
Name string
Input string
Expected map[string]interface{}
}{
{
Name: "Ref",
Input: cloudformation.Ref("test-reference"),
Expected: map[string]interface{}{
"Ref": "test-reference",
},
},
{
Name: "Fn::GetAtt",
Input: cloudformation.GetAtt("resource", "property"),
Expected: map[string]interface{}{
"Fn::GetAtt": []interface{}{"resource", "property"},
},
},
{
Name: "Fn::ImportValue",
Input: cloudformation.ImportValue("test-import"),
Expected: map[string]interface{}{
"Fn::ImportValue": "test-import",
},
},
{
Name: "Fn::Base64",
Input: cloudformation.Base64("test-base64"),
Expected: map[string]interface{}{
"Fn::Base64": "test-base64",
},
},
{
Name: "Fn::Cidr",
Input: cloudformation.CIDR("test-ip-block", "test-count", "test-cidr-bits"),
Expected: map[string]interface{}{
"Fn::Cidr": []interface{}{"test-ip-block", "test-count", "test-cidr-bits"},
},
},
{
Name: "Fn::FindInMap",
Input: cloudformation.FindInMap("test-map", "test-top-level-key", "test-second-level-key"),
Expected: map[string]interface{}{
"Fn::FindInMap": []interface{}{"test-map", "test-top-level-key", "test-second-level-key"},
},
},
{
Name: "Fn::GetAZs",
Input: cloudformation.GetAZs("test-region"),
Expected: map[string]interface{}{
"Fn::GetAZs": "test-region",
},
},
{
Name: "Fn::Join",
Input: cloudformation.Join("test-delimiter", []string{"test-join-value-1", "test-join-value-2"}),
Expected: map[string]interface{}{
"Fn::Join": []interface{}{
"test-delimiter",
[]interface{}{
"test-join-value-1",
"test-join-value-2",
},
},
},
},
{
Name: "Fn::Select",
Input: cloudformation.Select("test-index", []string{"test-select-value-1", "test-select-value-2"}),
Expected: map[string]interface{}{
"Fn::Select": []interface{}{
"test-index",
[]interface{}{
"test-select-value-1",
"test-select-value-2",
},
},
},
},
{
Name: "Fn::Split",
Input: cloudformation.Split("test-delimiter", "test-split-source"),
Expected: map[string]interface{}{
"Fn::Split": []interface{}{"test-delimiter", "test-split-source"},