add external api

Author: JY8752

.vscode/settings.json

@@ -1,6 +1,6 @@
 {
   "gopls": {
-    "build.buildFlags": ["-tags=unit,integration,e2e"]
+    "build.buildFlags": ["-tags=unit,integration,e2e,wireinject"]
   },
   "go.testTags": "-tags=unit,integration,e2e",
 }

Taskfile.yaml

@@ -60,3 +60,11 @@ tasks:
         --database "mysql://$MYSQL_USER:$MYSQL_PASS@tcp($MYSQL_HOST:$MYSQL_PORT)/$MYSQL_DBNAME"
         -verbose force {{.CLI_ARGS}}
     desc: 'Execute force migration version.Migration version must be specified as an argument.ex)task migrate:force -- 2'
+  generate:
+    cmds:
+      - go generate ./...
+    desc: 'execute `go generate` command. generate mock by `gomock` and di by `wire`.'
+  generate:di:
+    cmds: 
+      - wire gen
+    desc: 'execute `wire gen` command.'

controller/gacha.go

@@ -4,17 +4,24 @@ import (
 	"context"
 
 	"github.com/JY8752/go-unittest-architecture/domain"
+	"github.com/JY8752/go-unittest-architecture/infrastructure/api"
 	"github.com/JY8752/go-unittest-architecture/infrastructure/repository"
 )
 
 type Gacha struct {
 	gachaRep      *repository.Gacha
 	itemRep       *repository.Item
 	seedGenerator domain.SeedGenerator
+	payment       api.Payment
 }
 
-func NewGacha(gachaRep *repository.Gacha, itemRep *repository.Item, seedGenerator domain.SeedGenerator) *Gacha {
-	return &Gacha{gachaRep, itemRep, seedGenerator}
+func NewGacha(
+	gachaRep *repository.Gacha,
+	itemRep *repository.Item,
+	seedGenerator domain.SeedGenerator,
+	payment api.Payment,
+) *Gacha {
+	return &Gacha{gachaRep, itemRep, seedGenerator, payment}
 }
 
 func (g *Gacha) Draw(ctx context.Context, gachaId domain.GachaId) (*domain.Item, error) {
@@ -39,7 +46,10 @@ func (g *Gacha) Draw(ctx context.Context, gachaId domain.GachaId) (*domain.Item,
 		return nil, err
 	}
 
-	// 管理下にないプロセス外依存 決済する
+	// 管理下にないプロセス外依存 決済する 手抜きでハードコード
+	if err = g.payment.Buy(100); err != nil {
+		return nil, err
+	}
 
 	return item, err
 }

controller/gacha_test.go

@@ -12,6 +12,7 @@ import (
 	"github.com/JY8752/go-unittest-architecture/controller"
 	"github.com/JY8752/go-unittest-architecture/domain"
 	"github.com/JY8752/go-unittest-architecture/infrastructure/repository"
+	mock_api "github.com/JY8752/go-unittest-architecture/mocks/api"
 	mock_domain "github.com/JY8752/go-unittest-architecture/mocks/domain"
 	"github.com/JY8752/go-unittest-architecture/test"
 	_ "github.com/golang-migrate/migrate/v4/source/file"
@@ -50,17 +51,19 @@ func TestDraw(t *testing.T) {
 	sg := mock_domain.NewMockSeedGenerator(ctrl)
 	sg.EXPECT().New().Return(int64(1000))
 
-	controller := controller.NewGacha(gachaRep, itemRep, sg)
+	p := mock_api.NewMockPayment(ctrl)
+	p.EXPECT().Buy(100).Return(nil).Times(1)
+
+	controller := controller.NewGacha(gachaRep, itemRep, sg, p)
 
-	gachaId := domain.NewGachaId(1)
 	expected := domain.NewItem(
 		domain.NewItemId(9),
 		"item9",
 		domain.R,
 	)
 
 	// Act
-	act, err := controller.Draw(context.Background(), gachaId)
+	act, err := controller.Draw(context.Background(), domain.NewGachaId(1))
 	if err != nil {
 		t.Fatal(err)
 	}

infrastructure/api/payment.go

@@ -0,0 +1,23 @@
+package api
+
+//go:generate mockgen -source=$GOFILE -destination=../../mocks/api/mock_$GOFILE -package=mock_api
+
+import "errors"
+
+type Payment interface {
+	Buy(int) error
+}
+
+type payment struct{}
+
+func NewPayment() Payment {
+	return &payment{}
+}
+
+// dummy実装 本当は外部の決済APIとかを叩く想定
+func (p *payment) Buy(price int) error {
+	if price == 100 {
+		return nil
+	}
+	return errors.New("invalid price")
+}

mocks/api/mock_payment.go

@@ -7,6 +7,7 @@ import (
 
 	"github.com/JY8752/go-unittest-architecture/controller"
 	"github.com/JY8752/go-unittest-architecture/domain"
+	"github.com/JY8752/go-unittest-architecture/infrastructure/api"
 	"github.com/JY8752/go-unittest-architecture/infrastructure/handler"
 	"github.com/JY8752/go-unittest-architecture/infrastructure/repository"
 	"github.com/google/wire"
@@ -18,6 +19,7 @@ func InitializeRootHandler(db *sql.DB, e *echo.Echo) *handler.Root {
 		repository.NewGacha,
 		repository.NewItem,
 		domain.NewSeedGenerator,
+		api.NewPayment,
 		controller.NewGacha,
 		handler.NewGacha,
 		handler.NewRoot,