feat: allow integrations tests to be called as unit tests

This reconfigures the integration tests a bit to be called as
unit tests. This makes debugging failing tests a little easier.

cmd/versitygw/gateway_test.go

@@ -0,0 +1,104 @@
+package main
+
+import (
+	"context"
+	"log"
+	"os"
+	"path/filepath"
+	"sync"
+	"testing"
+
+	"github.com/versity/versitygw/backend/posix"
+	"github.com/versity/versitygw/integration"
+)
+
+const (
+	tdir = "tempdir"
+)
+
+var (
+	wg sync.WaitGroup
+)
+
+func initEnv(dir string) {
+	// both
+	debug = true
+	region = "us-east-1"
+
+	// server
+	rootUserAccess = "user"
+	rootUserSecret = "pass"
+	iamDir = dir
+	port = "127.0.0.1:7070"
+
+	// client
+	awsID = "user"
+	awsSecret = "pass"
+	endpoint = "http://127.0.0.1:7070"
+}
+
+func initPosix(ctx context.Context) {
+	path, err := os.Getwd()
+	if err != nil {
+		log.Fatalf("get current directory: %v", err)
+	}
+
+	tempdir := filepath.Join(path, tdir)
+	initEnv(tempdir)
+
+	err = os.RemoveAll(tempdir)
+	if err != nil {
+		log.Fatalf("remove temp directory: %v", err)
+	}
+
+	err = os.Mkdir(tempdir, 0755)
+	if err != nil {
+		log.Fatalf("make temp directory: %v", err)
+	}
+
+	be, err := posix.New(tempdir)
+	if err != nil {
+		log.Fatalf("init posix: %v", err)
+	}
+
+	wg.Add(1)
+	go func() {
+		err = runGateway(ctx, be)
+		if err != nil && err != context.Canceled {
+			log.Fatalf("run gateway: %v", err)
+		}
+
+		err := os.RemoveAll(tempdir)
+		if err != nil {
+			log.Fatalf("remove temp directory: %v", err)
+		}
+		wg.Done()
+	}()
+}
+
+func TestIntegration(t *testing.T) {
+	ctx, cancel := context.WithCancel(context.Background())
+
+	initPosix(ctx)
+
+	opts := []integration.Option{
+		integration.WithAccess(awsID),
+		integration.WithSecret(awsSecret),
+		integration.WithRegion(region),
+		integration.WithEndpoint(endpoint),
+	}
+	if debug {
+		opts = append(opts, integration.WithDebug())
+	}
+
+	s := integration.NewS3Conf(opts...)
+
+	// replace below with desired test
+	err := integration.HeadBucket_non_existing_bucket(s)
+	if err != nil {
+		t.Error(err)
+	}
+
+	cancel()
+	wg.Wait()
+}

cmd/versitygw/main.go

@@ -280,7 +280,7 @@ func initFlags() []cli.Flag {
 	}
 }
 
-func runGateway(ctx *cli.Context, be backend.Backend) error {
+func runGateway(ctx context.Context, be backend.Backend) error {
 	// int32 max for 32 bit arch
 	blimit := int64(2*1024*1024*1024 - 1)
 	if strconv.IntSize > 32 {

cmd/versitygw/posix.go

@@ -49,5 +49,5 @@ func runPosix(ctx *cli.Context) error {
 		return fmt.Errorf("init posix: %v", err)
 	}
 
-	return runGateway(ctx, be)
+	return runGateway(ctx.Context, be)
 }

cmd/versitygw/s3.go

@@ -72,5 +72,5 @@ to an s3 storage backend service.`,
 func runS3(ctx *cli.Context) error {
 	be := s3proxy.New(s3proxyEndpoint, s3proxyRegion,
 		s3proxyDisableChecksum, s3proxySslSkipVerify, s3proxyDebug)
-	return runGateway(ctx, be)
+	return runGateway(ctx.Context, be)
 }

cmd/versitygw/scoutfs.go

@@ -69,5 +69,5 @@ func runScoutfs(ctx *cli.Context) error {
 		return fmt.Errorf("init scoutfs: %v", err)
 	}
 
-	return runGateway(ctx, be)
+	return runGateway(ctx.Context, be)
 }