lambdaiface

package
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Published: Jan 15, 2018 License: Apache-2.0 Imports: 2 Imported by: 0

Documentation

Overview

Package lambdaiface provides an interface to enable mocking the AWS Lambda service client for testing your code.

It is important to note that this interface will have breaking changes when the service model is updated and adds new API operations, paginators, and waiters.

Index

Constants

This section is empty.

Variables

This section is empty.

Functions

This section is empty.

Types

type LambdaAPI

type LambdaAPI interface {
	AddPermissionRequest(*lambda.AddPermissionInput) lambda.AddPermissionRequest

	CreateAliasRequest(*lambda.CreateAliasInput) lambda.CreateAliasRequest

	CreateEventSourceMappingRequest(*lambda.CreateEventSourceMappingInput) lambda.CreateEventSourceMappingRequest

	CreateFunctionRequest(*lambda.CreateFunctionInput) lambda.CreateFunctionRequest

	DeleteAliasRequest(*lambda.DeleteAliasInput) lambda.DeleteAliasRequest

	DeleteEventSourceMappingRequest(*lambda.DeleteEventSourceMappingInput) lambda.DeleteEventSourceMappingRequest

	DeleteFunctionRequest(*lambda.DeleteFunctionInput) lambda.DeleteFunctionRequest

	DeleteFunctionConcurrencyRequest(*lambda.DeleteFunctionConcurrencyInput) lambda.DeleteFunctionConcurrencyRequest

	GetAccountSettingsRequest(*lambda.GetAccountSettingsInput) lambda.GetAccountSettingsRequest

	GetAliasRequest(*lambda.GetAliasInput) lambda.GetAliasRequest

	GetEventSourceMappingRequest(*lambda.GetEventSourceMappingInput) lambda.GetEventSourceMappingRequest

	GetFunctionRequest(*lambda.GetFunctionInput) lambda.GetFunctionRequest

	GetFunctionConfigurationRequest(*lambda.GetFunctionConfigurationInput) lambda.GetFunctionConfigurationRequest

	GetPolicyRequest(*lambda.GetPolicyInput) lambda.GetPolicyRequest

	InvokeRequest(*lambda.InvokeInput) lambda.InvokeRequest

	InvokeAsyncRequest(*lambda.InvokeAsyncInput) lambda.InvokeAsyncRequest

	ListAliasesRequest(*lambda.ListAliasesInput) lambda.ListAliasesRequest

	ListEventSourceMappingsRequest(*lambda.ListEventSourceMappingsInput) lambda.ListEventSourceMappingsRequest

	ListEventSourceMappingsPages(*lambda.ListEventSourceMappingsInput, func(*lambda.ListEventSourceMappingsOutput, bool) bool) error
	ListEventSourceMappingsPagesWithContext(aws.Context, *lambda.ListEventSourceMappingsInput, func(*lambda.ListEventSourceMappingsOutput, bool) bool, ...aws.Option) error

	ListFunctionsRequest(*lambda.ListFunctionsInput) lambda.ListFunctionsRequest

	ListFunctionsPages(*lambda.ListFunctionsInput, func(*lambda.ListFunctionsOutput, bool) bool) error
	ListFunctionsPagesWithContext(aws.Context, *lambda.ListFunctionsInput, func(*lambda.ListFunctionsOutput, bool) bool, ...aws.Option) error

	ListTagsRequest(*lambda.ListTagsInput) lambda.ListTagsRequest

	ListVersionsByFunctionRequest(*lambda.ListVersionsByFunctionInput) lambda.ListVersionsByFunctionRequest

	PublishVersionRequest(*lambda.PublishVersionInput) lambda.PublishVersionRequest

	PutFunctionConcurrencyRequest(*lambda.PutFunctionConcurrencyInput) lambda.PutFunctionConcurrencyRequest

	RemovePermissionRequest(*lambda.RemovePermissionInput) lambda.RemovePermissionRequest

	TagResourceRequest(*lambda.TagResourceInput) lambda.TagResourceRequest

	UntagResourceRequest(*lambda.UntagResourceInput) lambda.UntagResourceRequest

	UpdateAliasRequest(*lambda.UpdateAliasInput) lambda.UpdateAliasRequest

	UpdateEventSourceMappingRequest(*lambda.UpdateEventSourceMappingInput) lambda.UpdateEventSourceMappingRequest

	UpdateFunctionCodeRequest(*lambda.UpdateFunctionCodeInput) lambda.UpdateFunctionCodeRequest

	UpdateFunctionConfigurationRequest(*lambda.UpdateFunctionConfigurationInput) lambda.UpdateFunctionConfigurationRequest
}

LambdaAPI provides an interface to enable mocking the lambda.Lambda service client's API operation, paginators, and waiters. This make unit testing your code that calls out to the SDK's service client's calls easier.

The best way to use this interface is so the SDK's service client's calls can be stubbed out for unit testing your code with the SDK without needing to inject custom request handlers into the SDK's request pipeline.

// myFunc uses an SDK service client to make a request to
// AWS Lambda.
func myFunc(svc lambdaiface.LambdaAPI) bool {
    // Make svc.AddPermission request
}

func main() {
    cfg, err := external.LoadDefaultAWSConfig()
    if err != nil {
        panic("failed to load config, " + err.Error())
    }

    svc := lambda.New(cfg)

    myFunc(svc)
}

In your _test.go file:

// Define a mock struct to be used in your unit tests of myFunc.
type mockLambdaClient struct {
    lambdaiface.LambdaAPI
}
func (m *mockLambdaClient) AddPermission(input *lambda.AddPermissionInput) (*lambda.AddPermissionOutput, error) {
    // mock response/functionality
}

func TestMyFunc(t *testing.T) {
    // Setup Test
    mockSvc := &mockLambdaClient{}

    myfunc(mockSvc)

    // Verify myFunc's functionality
}

It is important to note that this interface will have breaking changes when the service model is updated and adds new API operations, paginators, and waiters. Its suggested to use the pattern above for testing, or using tooling to generate mocks to satisfy the interfaces.

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