add user crud interface in impl

internal/user/user_test.go

@@ -0,0 +1,84 @@
+package user
+
+import (
+	"os"
+	"path/filepath"
+	"testing"
+
+	"gorm.io/driver/sqlite"
+	"gorm.io/gorm"
+)
+
+func setupTestDB(t *testing.T) *gorm.DB {
+	t.Helper()
+
+	dbPath := filepath.Join("testdata", "users.db")
+
+	_ = os.Remove(dbPath)
+
+	db, err := gorm.Open(sqlite.Open(dbPath), &gorm.Config{})
+	if err != nil {
+		t.Fatalf("failed to open db: %v", err)
+	}
+
+	if err := db.AutoMigrate(&User{}); err != nil {
+		t.Fatalf("failed to migrate: %v", err)
+	}
+
+	return db
+}
+
+func TestUsersCRUD(t *testing.T) {
+	db := setupTestDB(t)
+
+	store, err := NewGormUserStore(db)
+	if err != nil {
+		t.Fatalf("failed to create store: %v", err)
+	}
+
+	service, err := NewService(store)
+	if err != nil {
+		t.Fatalf("failed to create service: %v", err)
+	}
+
+	user := &User{
+		Username: "testuser",
+		Email:    "test@example.com",
+		Password: "password123",
+	}
+
+	if err := service.Create(user); err != nil {
+		t.Fatalf("failed to create user: %v", err)
+	}
+	retrieved, err := service.GetByID(user.ID)
+	if err != nil {
+		t.Fatalf("failed to get user by ID: %v", err)
+	}
+	if retrieved.Username != user.Username {
+		t.Fatalf("expected username %s, got %s", user.Username, retrieved.Username)
+	}
+
+	retrievedByUsername, err := service.GetByUsername(user.Username)
+	if err != nil {
+		t.Fatalf("failed to get user by username: %v", err)
+	}
+	if retrievedByUsername.Email != user.Email {
+		t.Fatalf("expected email %s, got %s", user.Email, retrievedByUsername.Email)
+	}
+
+	user.Email = "newemail@example.com"
+	if err := service.Update(user); err != nil {
+		t.Fatalf("failed to update user: %v", err)
+	}
+	retrieved, err = service.GetByID(user.ID)
+	if err != nil {
+		t.Fatalf("failed to get user by ID: %v", err)
+	}
+	if retrieved.Email != user.Email {
+		t.Fatalf("expected email %s, got %s", user.Email, retrieved.Email)
+	}
+	err = service.Delete(user.ID)
+	if err != nil {
+		t.Fatalf("failed to delete user: %v", err)
+	}
+}