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// Copyright 2015 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.

#import "ios/web/browsing_data_partition_impl.h"

#include "base/ios/ios_util.h"
#include "base/memory/scoped_ptr.h"
#import "base/test/ios/wait_util.h"
#include "ios/web/public/active_state_manager.h"
#include "ios/web/public/browser_state.h"
#import "ios/web/public/crw_browsing_data_store.h"
#include "ios/web/public/test/test_browser_state.h"
#include "ios/web/public/test/test_web_thread_bundle.h"
#include "testing/gtest/include/gtest/gtest.h"
#include "testing/platform_test.h"

namespace web {
namespace {

class BrowsingDataPartitionImplTest : public PlatformTest {
 protected:
  void SetUp() override {
    PlatformTest::SetUp();
    browser_state_.reset(new TestBrowserState());
    BrowserState::GetActiveStateManager(browser_state_.get())->SetActive(true);
  }
  void TearDown() override {
    // The BrowserState needs to be destroyed first so that it is outlived by
    // the WebThreadBundle.
    BrowserState::GetActiveStateManager(browser_state_.get())->SetActive(false);
    base::test::ios::WaitUntilCondition(^bool {
      return BrowsingDataPartition::IsSynchronized();
    });
    browser_state_.reset();
    PlatformTest::TearDown();
  }

  // The BrowserState used for testing purposes.
  scoped_ptr<BrowserState> browser_state_;

 private:
  // Used to create TestWebThreads.
  TestWebThreadBundle thread_bundle_;
};

}  // namespace

// Tests that a BrowsingDataPartitionImplTest is succesfully created with a
// BrowserState. And that it returns a non-nil BrowsingDataStore.
TEST_F(BrowsingDataPartitionImplTest, CreationAndBrowsingDataStore) {
  if (!base::ios::IsRunningOnIOS8OrLater()) {
    return;
  }

  BrowsingDataPartition* browsing_data_partition =
      BrowserState::GetBrowsingDataPartition(browser_state_.get());
  ASSERT_TRUE(browsing_data_partition);

  EXPECT_TRUE(browsing_data_partition->GetBrowsingDataStore());
}

// Tests that a BrowsingDataPartitionImplTest successfully handles the case when
// multiple BrowserStates are made active/inactive.
TEST_F(BrowsingDataPartitionImplTest, ManyBrowserStates) {
  if (!base::ios::IsRunningOnIOS8OrLater()) {
    return;
  }

  scoped_ptr<BrowserState> browser_state_1(new TestBrowserState);
  scoped_ptr<BrowserState> browser_state_2(new TestBrowserState);

  // Create a BrowsingDataPartition associated with each of the BrowserStates.
  ASSERT_TRUE(BrowserState::GetBrowsingDataPartition(browser_state_.get()));
  ASSERT_TRUE(BrowserState::GetBrowsingDataPartition(browser_state_1.get()));
  ASSERT_TRUE(BrowserState::GetBrowsingDataPartition(browser_state_2.get()));

  ASSERT_TRUE(BrowsingDataPartition::IsSynchronized());
  BrowserState::GetActiveStateManager(browser_state_.get())->SetActive(false);

  BrowserState::GetActiveStateManager(browser_state_1.get())->SetActive(true);
  BrowserState::GetActiveStateManager(browser_state_1.get())->SetActive(false);

  BrowserState::GetActiveStateManager(browser_state_2.get())->SetActive(true);
  BrowserState::GetActiveStateManager(browser_state_2.get())->SetActive(false);
  // Test an edge case where a |makeActive:| call is enqueued in the same
  // runloop as when the associated ActiveStateManager's active state is
  // changed.
  CRWBrowsingDataStore* store =
      BrowserState::GetBrowsingDataPartition(browser_state_2.get())
          ->GetBrowsingDataStore();
  [store makeActiveWithCompletionHandler:nil];

  EXPECT_FALSE(BrowsingDataPartition::IsSynchronized());
  base::test::ios::WaitUntilCondition(^bool() {
    return BrowsingDataPartition::IsSynchronized();
  });
}

}  // namespace web