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| 1 // Copyright 2017 The Chromium Authors. All rights reserved. |
| 2 // Use of this source code is governed by a BSD-style license that can be |
| 3 // found in the LICENSE file. |
| 4 |
| 5 #include "chrome/browser/page_load_metrics/observers/resource_tracking_page_load
_metrics_observer.h" |
| 6 |
| 7 #include "chrome/browser/page_load_metrics/observers/page_load_metrics_observer_
test_harness.h" |
| 8 |
| 9 namespace { |
| 10 const char kFakeUrl[] = "http://www.google.com/nothingotseehere.html"; |
| 11 } // namespace |
| 12 |
| 13 namespace page_load_metrics { |
| 14 |
| 15 class ResourceTrackingPageLoadMetricsObserverTest |
| 16 : public page_load_metrics::PageLoadMetricsObserverTestHarness { |
| 17 public: |
| 18 ResourceTrackingPageLoadMetricsObserverTest() : observer_(nullptr) {} |
| 19 |
| 20 protected: |
| 21 void RegisterObservers(page_load_metrics::PageLoadTracker* tracker) override { |
| 22 std::unique_ptr<page_load_metrics::ResourceTrackingPageLoadMetricsObserver> |
| 23 observer( |
| 24 new page_load_metrics::ResourceTrackingPageLoadMetricsObserver()); |
| 25 // Keep track of the observer pointer so we can check it in the unit test. |
| 26 observer_ = observer.get(); |
| 27 tracker->AddObserver(std::move(observer)); |
| 28 } |
| 29 |
| 30 page_load_metrics::ResourceTrackingPageLoadMetricsObserver* observer() { |
| 31 return observer_; |
| 32 } |
| 33 |
| 34 private: |
| 35 // observer_ is owned by the last created PageLoadTracker, and its lifetime is |
| 36 // dictated by that tracker's lifetime. |
| 37 page_load_metrics::ResourceTrackingPageLoadMetricsObserver* observer_; |
| 38 }; |
| 39 |
| 40 TEST_F(ResourceTrackingPageLoadMetricsObserverTest, StartAndFinish) { |
| 41 page_load_metrics::ExtraRequestStartInfo start_info_1{ |
| 42 content::ResourceType::RESOURCE_TYPE_IMAGE}; |
| 43 |
| 44 page_load_metrics::ExtraRequestStartInfo start_info_2{ |
| 45 content::ResourceType::RESOURCE_TYPE_IMAGE}; |
| 46 |
| 47 page_load_metrics::ExtraRequestCompleteInfo done_info{ |
| 48 false /*was_cached*/, 1024 * 40 /* raw_body_bytes */, |
| 49 1024 * 40 /* original_network_content_length */, |
| 50 nullptr /* data reduction_proxy */, |
| 51 content::ResourceType::RESOURCE_TYPE_IMAGE}; |
| 52 |
| 53 // Start the navigation. This will create the page load tracker and register |
| 54 // the observers. |
| 55 NavigateAndCommit(GURL(kFakeUrl)); |
| 56 |
| 57 // Simulate starting two images, and completing one. |
| 58 SimulateStartedResource(start_info_1); |
| 59 SimulateStartedResource(start_info_2); |
| 60 SimulateLoadedResource(done_info); |
| 61 |
| 62 int64_t started = -1; |
| 63 int64_t completed = -1; |
| 64 EXPECT_NE(nullptr, observer()); |
| 65 observer()->GetCountsForTypeForTesting( |
| 66 content::ResourceType::RESOURCE_TYPE_IMAGE, &started, &completed); |
| 67 EXPECT_EQ(2, started); |
| 68 EXPECT_EQ(1, completed); |
| 69 } |
| 70 |
| 71 } // namespace page_load_metrics |
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