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// Copyright 2015 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "components/dom_distiller/content/browser/distillable_page_utils.h"
#include <utility>
#include "base/functional/bind.h"
#include "base/functional/callback_helpers.h"
#include "base/path_service.h"
#include "base/run_loop.h"
#include "build/build_config.h"
#include "components/dom_distiller/content/browser/distiller_javascript_utils.h"
#include "components/dom_distiller/content/browser/test/test_util.h"
#include "components/dom_distiller/core/distillable_page_detector.h"
#include "components/dom_distiller/core/page_features.h"
#include "content/public/browser/browser_context.h"
#include "content/public/browser/render_frame_host.h"
#include "content/public/browser/web_contents_observer.h"
#include "content/public/common/isolated_world_ids.h"
#include "content/public/test/browser_test.h"
#include "content/public/test/content_browser_test.h"
#include "content/shell/browser/shell.h"
#include "net/test/embedded_test_server/embedded_test_server.h"
namespace dom_distiller {
namespace {
const char* kArticlePath = "/og_article.html";
class DomDistillerDistillablePageUtilsTest : public content::ContentBrowserTest,
content::WebContentsObserver {
public:
void SetUpOnMainThread() override {
if (!DistillerJavaScriptWorldIdIsSet()) {
SetDistillerJavaScriptWorldId(content::ISOLATED_WORLD_ID_CONTENT_END);
}
AddComponentsResources();
SetUpTestServer();
ContentBrowserTest::SetUpOnMainThread();
}
void LoadURL(const std::string& url) {
content::WebContents* current_web_contents = shell()->web_contents();
Observe(current_web_contents);
base::RunLoop url_loaded_runner;
main_frame_loaded_callback_ = url_loaded_runner.QuitClosure();
current_web_contents->GetController().LoadURL(
embedded_test_server()->GetURL(url), content::Referrer(),
ui::PAGE_TRANSITION_TYPED, std::string());
url_loaded_runner.Run();
main_frame_loaded_callback_.Reset();
Observe(nullptr);
}
private:
void SetUpTestServer() {
base::FilePath path;
base::PathService::Get(base::DIR_SRC_TEST_DATA_ROOT, &path);
path = path.AppendASCII("components/test/data/dom_distiller");
embedded_test_server()->ServeFilesFromDirectory(path);
ASSERT_TRUE(embedded_test_server()->Start());
}
void DOMContentLoaded(content::RenderFrameHost* render_frame_host) override {
if (!render_frame_host->GetParent())
std::move(main_frame_loaded_callback_).Run();
}
base::OnceClosure main_frame_loaded_callback_;
};
class ResultHolder {
public:
ResultHolder(base::OnceClosure callback) : callback_(std::move(callback)) {}
void OnResult(bool result) {
result_ = result;
std::move(callback_).Run();
}
bool GetResult() { return result_; }
base::OnceCallback<void(bool)> GetCallback() {
return base::BindOnce(&ResultHolder::OnResult, base::Unretained(this));
}
private:
base::OnceClosure callback_;
bool result_;
};
} // namespace
IN_PROC_BROWSER_TEST_F(DomDistillerDistillablePageUtilsTest,
TestIsDistillablePage) {
std::unique_ptr<AdaBoostProto> proto(new AdaBoostProto);
proto->set_num_features(kDerivedFeaturesCount);
proto->set_num_stumps(1);
StumpProto* stump = proto->add_stump();
stump->set_feature_number(0);
stump->set_weight(1);
stump->set_split(-1);
std::unique_ptr<DistillablePageDetector> detector(
new DistillablePageDetector(std::move(proto)));
EXPECT_DOUBLE_EQ(0.5, detector->GetThreshold());
// The first value of the first feature is either 0 or 1. Since the stump's
// split is -1, the stump weight will be applied to any set of derived
// features.
LoadURL(kArticlePath);
base::RunLoop run_loop_;
ResultHolder holder(run_loop_.QuitClosure());
IsDistillablePageForDetector(shell()->web_contents(), detector.get(),
holder.GetCallback());
run_loop_.Run();
ASSERT_TRUE(holder.GetResult());
}
IN_PROC_BROWSER_TEST_F(DomDistillerDistillablePageUtilsTest,
TestIsNotDistillablePage) {
std::unique_ptr<AdaBoostProto> proto(new AdaBoostProto);
proto->set_num_features(kDerivedFeaturesCount);
proto->set_num_stumps(1);
StumpProto* stump = proto->add_stump();
stump->set_feature_number(0);
stump->set_weight(-1);
stump->set_split(-1);
std::unique_ptr<DistillablePageDetector> detector(
new DistillablePageDetector(std::move(proto)));
EXPECT_DOUBLE_EQ(-0.5, detector->GetThreshold());
// The first value of the first feature is either 0 or 1. Since the stump's
// split is -1, the stump weight will be applied to any set of derived
// features.
LoadURL(kArticlePath);
base::RunLoop run_loop_;
ResultHolder holder(run_loop_.QuitClosure());
IsDistillablePageForDetector(shell()->web_contents(), detector.get(),
holder.GetCallback());
run_loop_.Run();
ASSERT_FALSE(holder.GetResult());
}
} // namespace dom_distiller
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