chromium/components/signin/ios/browser/wait_for_network_callback_helper_unittest.cc


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// Copyright 2017 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 "components/signin/ios/browser/wait_for_network_callback_helper.h"

#include <memory>

#include "base/bind.h"
#include "base/run_loop.h"
#include "base/test/task_environment.h"
#include "net/base/mock_network_change_notifier.h"
#include "testing/gtest/include/gtest/gtest.h"

// A test fixture to test WaitForNetworkCallbackHelper.
class WaitForNetworkCallbackHelperTest : public testing::Test {
 public:
  void CallbackFunction() { num_callbacks_invoked_++; }

 protected:
  WaitForNetworkCallbackHelperTest() : num_callbacks_invoked_(0) {}

  int num_callbacks_invoked_;
  base::test::TaskEnvironment task_environment_;
  std::unique_ptr<net::test::MockNetworkChangeNotifier>
      network_change_notifier_ = net::test::MockNetworkChangeNotifier::Create();
  WaitForNetworkCallbackHelper callback_helper_;
};

TEST_F(WaitForNetworkCallbackHelperTest, CallbackInvokedImmediately) {
  network_change_notifier_->SetConnectionType(
      net::NetworkChangeNotifier::ConnectionType::CONNECTION_WIFI);
  callback_helper_.HandleCallback(
      base::Bind(&WaitForNetworkCallbackHelperTest::CallbackFunction,
                 base::Unretained(this)));
  EXPECT_EQ(1, num_callbacks_invoked_);
}

TEST_F(WaitForNetworkCallbackHelperTest, CallbackInvokedLater) {
  network_change_notifier_->SetConnectionType(
      net::NetworkChangeNotifier::ConnectionType::CONNECTION_NONE);
  callback_helper_.HandleCallback(
      base::Bind(&WaitForNetworkCallbackHelperTest::CallbackFunction,
                 base::Unretained(this)));
  callback_helper_.HandleCallback(
      base::Bind(&WaitForNetworkCallbackHelperTest::CallbackFunction,
                 base::Unretained(this)));
  EXPECT_EQ(0, num_callbacks_invoked_);

  network_change_notifier_->SetConnectionType(
      net::NetworkChangeNotifier::ConnectionType::CONNECTION_WIFI);
  network_change_notifier_->NotifyObserversOfConnectionTypeChangeForTests(
      net::NetworkChangeNotifier::ConnectionType::CONNECTION_WIFI);
  task_environment_.RunUntilIdle();
  EXPECT_EQ(2, num_callbacks_invoked_);
}