chromium/content/browser/interest_group/interest_group_real_time_report_util_unittest.cc

// Copyright 2024 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

#include "content/browser/interest_group/interest_group_real_time_report_util.h"

#include <stdint.h>

#include <algorithm>
#include <cstddef>
#include <limits>
#include <optional>
#include <string>
#include <utility>
#include <vector>

#include "content/services/auction_worklet/public/cpp/real_time_reporting.h"
#include "content/services/auction_worklet/public/mojom/real_time_reporting.mojom.h"
#include "content/services/auction_worklet/real_time_reporting_bindings.h"
#include "testing/gmock/include/gmock/gmock-matchers.h"
#include "testing/gtest/include/gtest/gtest.h"
#include "third_party/blink/public/common/features.h"
#include "url/gurl.h"
#include "url/origin.h"

namespace content {

class InterestGroupRealTimeReportUtilTest : public testing::Test { … };

// The proposed epsilon value of 1 yielding a flipping probability of ~0.378.
// Running the flipping a lot of times should get a flipping probability close
// to that.
TEST_F(InterestGroupRealTimeReportUtilTest, RapporFlippingProbability) { … }

// 0 and 1 in histogram are both flipped (and not flipped) randomly.
TEST_F(InterestGroupRealTimeReportUtilTest, RapporFlippingIsNonDeterministic) { … }

TEST_F(InterestGroupRealTimeReportUtilTest, SampleContributionsNoContribution) { … }

TEST_F(InterestGroupRealTimeReportUtilTest,
       SampleContributionsOneContribution) { … }

// All contributions should get a chance to be selected if we run the sampling
// a lot of times.
TEST_F(InterestGroupRealTimeReportUtilTest,
       SampleContributionsMultipleContributions) { … }

// If all contributions have the same priority_weight, they should get roughly
// the same probability of being selected.
TEST_F(InterestGroupRealTimeReportUtilTest,
       SampleContributionsEqualPriorityWeight) { … }

// If one contribution has extremely larger priority_weight, it should be
// selected with much higher probability.
TEST_F(InterestGroupRealTimeReportUtilTest,
       SampleContributionsMuchLargerPriorityWeight) { … }

TEST_F(InterestGroupRealTimeReportUtilTest,
       CalculateRealTimeReportingHistograms) { … }

TEST_F(InterestGroupRealTimeReportUtilTest, GetRealTimeReportDestination) { … }

TEST_F(InterestGroupRealTimeReportUtilTest, HasValidRealTimeBucket) { … }

TEST_F(InterestGroupRealTimeReportUtilTest, HasValidRealTimePriorityWeight) { … }

TEST_F(InterestGroupRealTimeReportUtilTest, BitPacking) { … }

}  // namespace content