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// Copyright 2025 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include <memory>
#include "base/test/scoped_feature_list.h"
#include "components/fingerprinting_protection_filter/interventions/common/interventions_features.h"
#include "content/browser/web_contents/web_contents_impl.h"
#include "content/public/browser/browser_context.h"
#include "content/public/test/browser_test.h"
#include "content/public/test/content_browser_test.h"
#include "content/shell/browser/shell.h"
#include "content/shell/browser/shell_browser_context.h"
#include "testing/gtest/include/gtest/gtest.h"
#include "third_party/blink/public/common/features.h"
#include "third_party/blink/public/common/renderer_preferences/renderer_preferences.h"
namespace content {
class CanvasNoiseTokenDataBrowserTest : public content::ContentBrowserTest {
public:
CanvasNoiseTokenDataBrowserTest() = default;
void SetUpOnMainThread() override {}
void TearDown() override { scoped_feature_list_.Reset(); }
private:
base::test::ScopedFeatureList scoped_feature_list_{
fingerprinting_protection_interventions::features::kCanvasNoise};
};
IN_PROC_BROWSER_TEST_F(CanvasNoiseTokenDataBrowserTest,
DifferentBrowserContextDifferCanvasNoiseTokens) {
auto* normal_tab =
static_cast<WebContentsImpl*>(CreateBrowser()->web_contents());
uint64_t normal_token =
normal_tab->GetMutableRendererPrefs()->canvas_noise_token;
auto* incognito_tab = static_cast<WebContentsImpl*>(
CreateOffTheRecordBrowser()->web_contents());
uint64_t incognito_token =
incognito_tab->GetMutableRendererPrefs()->canvas_noise_token;
EXPECT_NE(normal_token, 0UL);
EXPECT_NE(incognito_token, 0UL);
EXPECT_NE(normal_token, incognito_token);
}
} // namespace content
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