File: heuristic_source_unittest.cc

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// Copyright 2023 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/autofill/core/browser/heuristic_source.h"

#include "base/strings/to_string.h"
#include "base/test/scoped_feature_list.h"
#include "components/autofill/core/common/autofill_features.h"
#include "components/autofill/core/common/dense_set.h"
#include "testing/gmock/include/gmock/gmock.h"
#include "testing/gtest/include/gtest/gtest.h"

namespace autofill {

// Depending on `kAutofillModelPredictions`, the active heuristic source will
// differ.
//
// Currently, the available heuristic sources are the ML model and regexes.
// If the model predictions are disabled, then only regexes are used. If model
// predictions are enabled, `kAutofillMachineLearning` is also considered.
// Depending on `kAutofillModelPredictionsAreActive`, use
// `kAutofillMachineLearning` as the active heuristic source.

struct HeuristicSourceParams {
  std::optional<bool> model_predictions_feature;
  const HeuristicSource expected_active_source;
};

class HeuristicSourceTest
    : public testing::TestWithParam<HeuristicSourceParams> {
 public:
  HeuristicSourceTest() {
    const HeuristicSourceParams& test_case = GetParam();
    std::vector<base::test::FeatureRefAndParams> enabled_features;
    std::vector<base::test::FeatureRef> disabled_features;
    if (test_case.model_predictions_feature.has_value()) {
      std::string model_prediction_active =
          base::ToString(test_case.model_predictions_feature.value());
      enabled_features.push_back(
          {features::kAutofillModelPredictions,
           {{features::kAutofillModelPredictionsAreActive.name,
             model_prediction_active}}});
    } else {
      disabled_features.push_back(features::kAutofillModelPredictions);
    }
    features_.InitWithFeaturesAndParameters(enabled_features,
                                            disabled_features);
  }

 private:
  base::test::ScopedFeatureList features_;
};

// TODO(crbug.com/373902907): Flaky on ios and android bots.
#if BUILDFLAG(IS_IOS) || BUILDFLAG(IS_ANDROID)
#define MAYBE_HeuristicSourceParams DISABLED_HeuristicSourceParams
#else
#define MAYBE_HeuristicSourceParams HeuristicSourceParams
#endif
TEST_P(HeuristicSourceTest, MAYBE_HeuristicSourceParams) {
  const HeuristicSourceParams& test_case = GetParam();
  EXPECT_EQ(GetActiveHeuristicSource(), test_case.expected_active_source);
}

INSTANTIATE_TEST_SUITE_P(
    HeuristicSourceTest,
    HeuristicSourceTest,
    testing::Values(
        HeuristicSourceParams{
            .expected_active_source = HeuristicSource::kRegexes},

        HeuristicSourceParams{.model_predictions_feature = true,
                              .expected_active_source =
                                  HeuristicSource::kAutofillMachineLearning},

        HeuristicSourceParams{
            .model_predictions_feature = false,
            .expected_active_source = HeuristicSource::kRegexes}));

}  // namespace autofill