chrome/browser/overlays/overlay_request_queue_util_unittest.mm

// Copyright 2020 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/chrome/browser/overlays/public/overlay_request_queue_util.h"

#include "base/bind.h"
#include "ios/chrome/browser/overlays/public/overlay_request_queue.h"
#include "ios/chrome/browser/overlays/test/overlay_test_macros.h"
#import "ios/web/public/test/fakes/fake_web_state.h"
#include "testing/platform_test.h"

#if !defined(__has_feature) || !__has_feature(objc_arc)
#error "This file requires ARC support."
#endif

namespace {
// Configs used in tests.
DEFINE_TEST_OVERLAY_REQUEST_CONFIG(FirstConfig);
DEFINE_TEST_OVERLAY_REQUEST_CONFIG(SecondConfig);
DEFINE_TEST_OVERLAY_REQUEST_CONFIG(ThirdConfig);
DEFINE_TEST_OVERLAY_REQUEST_CONFIG(NonMatched);

// Creates a matcher callback for ConfigType.
template <class ConfigType>
base::RepeatingCallback<bool(OverlayRequest*)> ConfigMatcher() {
  return base::BindRepeating([](OverlayRequest* request) -> bool {
    return request->GetConfig<ConfigType>();
  });
}
}  // namespace

using OverlayRequestQueueUtilTest = PlatformTest;

// Tests that the expected indices for matching configs returned.
TEST_F(OverlayRequestQueueUtilTest, MatchingConfigs) {
  // Add requests to |web_state|'s queue.
  web::FakeWebState web_state;
  OverlayRequestQueue* queue =
      OverlayRequestQueue::FromWebState(&web_state, OverlayModality::kTesting);
  queue->AddRequest(OverlayRequest::CreateWithConfig<FirstConfig>());
  queue->AddRequest(OverlayRequest::CreateWithConfig<SecondConfig>());
  queue->AddRequest(OverlayRequest::CreateWithConfig<ThirdConfig>());

  // Verify that the requests are found using the matchers.
  size_t index = 0;
  EXPECT_TRUE(
      GetIndexOfMatchingRequest(queue, &index, ConfigMatcher<FirstConfig>()));
  EXPECT_EQ(0U, index);
  EXPECT_TRUE(
      GetIndexOfMatchingRequest(queue, &index, ConfigMatcher<SecondConfig>()));
  EXPECT_EQ(1U, index);
  EXPECT_TRUE(
      GetIndexOfMatchingRequest(queue, &index, ConfigMatcher<ThirdConfig>()));
  EXPECT_EQ(2U, index);

  // Verify that no requests are found for NonMatched config.
  EXPECT_FALSE(
      GetIndexOfMatchingRequest(queue, &index, ConfigMatcher<NonMatched>()));
}