#include "chrome/browser/ui/views/payments/validating_textfield.h"
#include <memory>
#include <string>
#include <utility>
#include "base/strings/utf_string_conversions.h"
#include "chrome/browser/ui/views/payments/validation_delegate.h"
#include "chrome/test/views/chrome_views_test_base.h"
#include "testing/gtest/include/gtest/gtest.h"
#include "ui/views/controls/textfield/textfield.h"
namespace payments {
class ValidatingTextfieldTest : public ChromeViewsTestBase { … };
TEST_F(ValidatingTextfieldTest, Validation) { … }
}