wrapper

localstack-go-wrapper

A wrapper around LocalStack for integration testing in Go.

Prerequesites

• Go 1.11 for module support $GO111MODULE=on
• Docker installed and daemon running

Usage

To start all LocalStack services on the default ports:

package demo

import (
	"log"
	"os"
	"testing"

	"github.com/callumkerredwards/localstack-go-wrapper/localstack"
)

func TestMain(m *testing.M) {
	os.Exit(testMainWrapper(m))
}

func testMainWrapper(m *testing.M) int {
    container, err := localstack.New()
    if err != nil {
        log.Printf("Cannot create localstack, %v", err)
        return 1
    }
    err = container.Start()
    if err != nil {
        log.Printf("Cannot start localstack, %v", err)
        return 1
    }
    defer container.Stop()
	return m.Run()
}

To specify LocalStack services running on a particular port:

package demo

import (
	"log"
	"os"
	"testing"

	"github.com/callumkerredwards/localstack-go-wrapper/localstack"
)

func TestMain(m *testing.M) {
	os.Exit(testMainWrapper(m))
}

func testMainWrapper(m *testing.M) int {
    s3Config := &localstack.ServiceConfig{
        Service: localstack.S3,
        Port: 33000,
    }
    container, err := localstack.New(s3Config)
    if err != nil {
        log.Printf("Cannot create localstack, %v", err)
        return 1
    }
    err = container.Start()
    if err != nil {
        log.Printf("Cannot start localstack, %v", err)
        return 1
    }
    defer container.Stop()
	return m.Run()
}

If the port is not specified, it will use the LocalStack defaults. Remember to ensure that LocalStack is not running elsewhere if using default ports.

Make

• make can be used to format, lint, install and test this library.