package payment

import (
	"errors"
	"testing"

	"gorm.io/gorm"
)

func TestRequireSingleBusinessUpdate(t *testing.T) {
	if err := requireSingleBusinessUpdate(&gorm.DB{RowsAffected: 1}); err != nil {
		t.Fatalf("single state update rejected: %v", err)
	}
	if err := requireSingleBusinessUpdate(&gorm.DB{}); err == nil {
		t.Fatal("zero-row state update must be rejected")
	}
	expected := errors.New("database unavailable")
	if err := requireSingleBusinessUpdate(&gorm.DB{Error: expected}); !errors.Is(err, expected) {
		t.Fatalf("database error lost: %v", err)
	}
}