feat: use testcontainers-go's DynamoDB module

dynamodb/dynamodb_test.go

@@ -1,30 +1,54 @@
 package dynamodb
 
 import (
+	"context"
 	"os"
 	"testing"
 
 	"github.com/stretchr/testify/require"
+	"github.com/testcontainers/testcontainers-go"
+	"github.com/testcontainers/testcontainers-go/modules/dynamodb"
 )
 
-var testStore *Storage
+const (
+	// dynamoDBImage is the default image used for running DynamoDB in tests.
+	dynamoDBImage              = "amazon/dynamodb-local:2.6.0"
+	dynamoDBImageEnvVar string = "TEST_DYNAMODB_IMAGE"
+)
 
-func TestMain(m *testing.M) {
-	testStore = New(Config{
-		Table:    "fiber_storage",
-		Endpoint: "http://localhost:8000/",
-		Region:   "us-east-1",
-		Credentials: Credentials{
-			AccessKey:       "dummy",
-			SecretAccessKey: "dummy",
+func newTestStore(t testing.TB) (*Storage, error) {
+	t.Helper()
+
+	img := dynamoDBImage
+	if imgFromEnv := os.Getenv(dynamoDBImageEnvVar); imgFromEnv != "" {
+		img = imgFromEnv
+	}
+
+	ctx := context.Background()
+
+	c, err := dynamodb.Run(ctx, img, dynamodb.WithDisableTelemetry())
+	testcontainers.CleanupContainer(t, c)
+	if err != nil {
+		return nil, err
+	}
+
+	hostPort, err := c.ConnectionString(ctx)
+	if err != nil {
+		return nil, err
+	}
+
+	return New(
+		Config{
+			Table:    "fiber_storage",
+			Endpoint: "http://" + hostPort,
+			Region:   "us-east-1",
+			Credentials: Credentials{
+				AccessKey:       "dummy",
+				SecretAccessKey: "dummy",
+			},
+			Reset: true,
 		},
-		Reset: true,
-	})
-
-	code := m.Run()
-
-	_ = testStore.Close()
-	os.Exit(code)
+	), nil
 }
 
 func Test_DynamoDB_Set(t *testing.T) {
@@ -33,7 +57,11 @@ func Test_DynamoDB_Set(t *testing.T) {
 		val = []byte("doe")
 	)
 
-	err := testStore.Set(key, val, 0)
+	testStore, err := newTestStore(t)
+	require.NoError(t, err)
+	defer testStore.Close()
+
+	err = testStore.Set(key, val, 0)
 	require.NoError(t, err)
 }
 
@@ -43,7 +71,11 @@ func Test_DynamoDB_Set_Override(t *testing.T) {
 		val = []byte("doe")
 	)
 
-	err := testStore.Set(key, val, 0)
+	testStore, err := newTestStore(t)
+	require.NoError(t, err)
+	defer testStore.Close()
+
+	err = testStore.Set(key, val, 0)
 	require.NoError(t, err)
 
 	err = testStore.Set(key, val, 0)
@@ -56,7 +88,11 @@ func Test_DynamoDB_Get(t *testing.T) {
 		val = []byte("doe")
 	)
 
-	err := testStore.Set(key, val, 0)
+	testStore, err := newTestStore(t)
+	require.NoError(t, err)
+	defer testStore.Close()
+
+	err = testStore.Set(key, val, 0)
 	require.NoError(t, err)
 
 	result, err := testStore.Get(key)
@@ -65,6 +101,10 @@ func Test_DynamoDB_Get(t *testing.T) {
 }
 
 func Test_DynamoDB_Get_NotExist(t *testing.T) {
+	testStore, err := newTestStore(t)
+	require.NoError(t, err)
+	defer testStore.Close()
+
 	result, err := testStore.Get("notexist")
 	require.NoError(t, err)
 	require.Zero(t, len(result))
@@ -76,7 +116,11 @@ func Test_DynamoDB_Delete(t *testing.T) {
 		val = []byte("doe")
 	)
 
-	err := testStore.Set(key, val, 0)
+	testStore, err := newTestStore(t)
+	require.NoError(t, err)
+	defer testStore.Close()
+
+	err = testStore.Set(key, val, 0)
 	require.NoError(t, err)
 
 	err = testStore.Delete(key)
@@ -90,7 +134,11 @@ func Test_DynamoDB_Delete(t *testing.T) {
 func Test_DynamoDB_Reset(t *testing.T) {
 	val := []byte("doe")
 
-	err := testStore.Set("john1", val, 0)
+	testStore, err := newTestStore(t)
+	require.NoError(t, err)
+	defer testStore.Close()
+
+	err = testStore.Set("john1", val, 0)
 	require.NoError(t, err)
 
 	err = testStore.Set("john2", val, 0)
@@ -109,10 +157,17 @@ func Test_DynamoDB_Reset(t *testing.T) {
 }
 
 func Test_DynamoDB_Close(t *testing.T) {
+	testStore, err := newTestStore(t)
+	require.NoError(t, err)
+
 	require.Nil(t, testStore.Close())
 }
 
 func Test_DynamoDB_Conn(t *testing.T) {
+	testStore, err := newTestStore(t)
+	require.NoError(t, err)
+	defer testStore.Close()
+
 	require.True(t, testStore.Conn() != nil)
 }
 
@@ -120,16 +175,22 @@ func Benchmark_DynamoDB_Set(b *testing.B) {
 	b.ReportAllocs()
 	b.ResetTimer()
 
-	var err error
+	testStore, err := newTestStore(b)
+	require.NoError(b, err)
+	defer testStore.Close()
+
 	for i := 0; i < b.N; i++ {
 		err = testStore.Set("john", []byte("doe"), 0)
+		require.NoError(b, err)
 	}
-
-	require.NoError(b, err)
 }
 
 func Benchmark_DynamoDB_Get(b *testing.B) {
-	err := testStore.Set("john", []byte("doe"), 0)
+	testStore, err := newTestStore(b)
+	require.NoError(b, err)
+	defer testStore.Close()
+
+	err = testStore.Set("john", []byte("doe"), 0)
 	require.NoError(b, err)
 
 	b.ReportAllocs()
@@ -137,20 +198,23 @@ func Benchmark_DynamoDB_Get(b *testing.B) {
 
 	for i := 0; i < b.N; i++ {
 		_, err = testStore.Get("john")
+		require.NoError(b, err)
 	}
-
-	require.NoError(b, err)
 }
 
 func Benchmark_DynamoDB_SetAndDelete(b *testing.B) {
 	b.ReportAllocs()
 	b.ResetTimer()
 
-	var err error
-	for i := 0; i < b.N; i++ {
-		_ = testStore.Set("john", []byte("doe"), 0)
-		err = testStore.Delete("john")
-	}
-
+	testStore, err := newTestStore(b)
 	require.NoError(b, err)
+	defer testStore.Close()
+
+	for i := 0; i < b.N; i++ {
+		err = testStore.Set("john", []byte("doe"), 0)
+		require.NoError(b, err)
+
+		err = testStore.Delete("john")
+		require.NoError(b, err)
+	}
 }