// Copyright 2014 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

#include "ios/web/public/browser_state.h"

#include "base/supports_user_data.h"
#include "ios/web/public/test/fakes/test_browser_state.h"
#include "testing/gtest/include/gtest/gtest.h"

namespace {
class TestSupportsUserData : public base::SupportsUserData {
 public:
  TestSupportsUserData() {}
  ~TestSupportsUserData() override {}
};
}  // namespace

TEST(BrowserStateTest, FromSupportsUserData_NullPointer) {
  DCHECK_EQ(static_cast<web::BrowserState*>(nullptr),
            web::BrowserState::FromSupportsUserData(nullptr));
}

TEST(BrowserStateTest, FromSupportsUserData_NonBrowserState) {
  TestSupportsUserData supports_user_data;
  DCHECK_EQ(static_cast<web::BrowserState*>(nullptr),
            web::BrowserState::FromSupportsUserData(&supports_user_data));
}

TEST(BrowserStateTest, FromSupportsUserData) {
  web::TestBrowserState browser_state;
  DCHECK_EQ(&browser_state,
            web::BrowserState::FromSupportsUserData(&browser_state));
}