refac: reamaining auth surface rewrite, T0

test/cancel_pending_registration_test.go

@@ -0,0 +1,51 @@
+package test
+
+import (
+	"RenewCMS/internal/domain/user"
+	"RenewCMS/internal/infrastructure/useCases"
+	"errors"
+	"testing"
+)
+
+func TestCancelRegistrationUseCase(t *testing.T) {
+	t.Run("The use case deletes an unverified user, independently of any handler", func(t *testing.T) {
+		repo := newMockUserRepo()
+		repo.users[3] = user.User{ID: 3, IsVerified: false}
+		uc := useCases.NewCancelRegistrationUseCase(repo)
+
+		err := uc.CancelRegistration(3)
+
+		if err != nil {
+			t.Fatalf("expected no error, got %v", err)
+		}
+		if _, ok := repo.users[3]; ok {
+			t.Errorf("expected user 3 to be removed from the repository")
+		}
+	})
+
+	t.Run("The use case refuses to delete an already-verified user, independently of any handler", func(t *testing.T) {
+		repo := newMockUserRepo()
+		repo.users[3] = user.User{ID: 3, IsVerified: true}
+		uc := useCases.NewCancelRegistrationUseCase(repo)
+
+		err := uc.CancelRegistration(3)
+
+		if !errors.Is(err, user.ErrAlreadyVerified) {
+			t.Fatalf("expected user.ErrAlreadyVerified, got %v", err)
+		}
+		if _, ok := repo.users[3]; !ok {
+			t.Errorf("expected user 3 to still be present in the repository")
+		}
+	})
+
+	t.Run("The use case reports an unknown user, independently of any handler", func(t *testing.T) {
+		repo := newMockUserRepo()
+		uc := useCases.NewCancelRegistrationUseCase(repo)
+
+		err := uc.CancelRegistration(42)
+
+		if !errors.Is(err, user.ErrUserNotFound) {
+			t.Fatalf("expected user.ErrUserNotFound, got %v", err)
+		}
+	})
+}