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// Copyright 2021 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/segmentation_platform/internal/selection/segmentation_result_prefs.h"
#include "base/test/task_environment.h"
#include "components/prefs/pref_registry_simple.h"
#include "components/prefs/testing_pref_service.h"
#include "components/segmentation_platform/internal/constants.h"
#include "testing/gmock/include/gmock/gmock.h"
#include "testing/gtest/include/gtest/gtest.h"
namespace segmentation_platform {
class SegmentationResultPrefsTest : public testing::Test {
public:
SegmentationResultPrefsTest() = default;
~SegmentationResultPrefsTest() override = default;
void SetUp() override {
result_prefs_ = std::make_unique<SegmentationResultPrefs>(&pref_service_);
pref_service_.registry()->RegisterDictionaryPref(kSegmentationResultPref);
}
protected:
base::test::TaskEnvironment task_environment_;
TestingPrefServiceSimple pref_service_;
std::unique_ptr<SegmentationResultPrefs> result_prefs_;
};
TEST_F(SegmentationResultPrefsTest, WriteResultAndRead) {
std::string result_key = "some_key";
// Start test with no result.
std::optional<SelectedSegment> current_result =
result_prefs_->ReadSegmentationResultFromPref(result_key);
EXPECT_FALSE(current_result.has_value());
// Save a result. Verify by reading the result back.
SegmentId segment_id = SegmentId::OPTIMIZATION_TARGET_SEGMENTATION_NEW_TAB;
SelectedSegment selected_segment(segment_id, std::nullopt);
result_prefs_->SaveSegmentationResultToPref(result_key, selected_segment);
current_result = result_prefs_->ReadSegmentationResultFromPref(result_key);
EXPECT_TRUE(current_result.has_value());
EXPECT_EQ(segment_id, current_result->segment_id);
EXPECT_FALSE(current_result->rank);
EXPECT_FALSE(current_result->in_use);
EXPECT_EQ(base::Time(), current_result->selection_time);
// Overwrite the result with a new segment.
selected_segment.segment_id =
SegmentId::OPTIMIZATION_TARGET_SEGMENTATION_SHARE;
selected_segment.in_use = true;
base::Time now = base::Time::Now();
selected_segment.selection_time = now;
selected_segment.rank = 10;
result_prefs_->SaveSegmentationResultToPref(result_key, selected_segment);
current_result = result_prefs_->ReadSegmentationResultFromPref(result_key);
EXPECT_TRUE(current_result.has_value());
EXPECT_EQ(selected_segment.segment_id, current_result->segment_id);
ASSERT_TRUE(current_result->rank);
EXPECT_EQ(10, *current_result->rank);
EXPECT_TRUE(current_result->in_use);
EXPECT_EQ(now, current_result->selection_time);
// Write another result with a different key. This shouldn't overwrite the
// first key.
std::string result_key2 = "some_key2";
selected_segment.segment_id =
SegmentId::OPTIMIZATION_TARGET_SEGMENTATION_VOICE;
selected_segment.rank = 20;
result_prefs_->SaveSegmentationResultToPref(result_key2, selected_segment);
current_result = result_prefs_->ReadSegmentationResultFromPref(result_key2);
EXPECT_TRUE(current_result.has_value());
EXPECT_EQ(selected_segment.segment_id, current_result->segment_id);
EXPECT_EQ(20, *current_result->rank);
current_result = result_prefs_->ReadSegmentationResultFromPref(result_key);
EXPECT_TRUE(current_result.has_value());
EXPECT_EQ(SegmentId::OPTIMIZATION_TARGET_SEGMENTATION_SHARE,
current_result->segment_id);
EXPECT_EQ(10, *current_result->rank);
// Save empty result. It should delete the current result.
result_prefs_->SaveSegmentationResultToPref(result_key, std::nullopt);
current_result = result_prefs_->ReadSegmentationResultFromPref(result_key);
EXPECT_FALSE(current_result.has_value());
}
TEST_F(SegmentationResultPrefsTest, CorruptedValue) {
std::string result_key = "some_key";
SelectedSegment selected_segment(static_cast<SegmentId>(100), 1);
result_prefs_->SaveSegmentationResultToPref(result_key, selected_segment);
std::optional<SelectedSegment> current_result =
result_prefs_->ReadSegmentationResultFromPref(result_key);
EXPECT_TRUE(current_result.has_value());
EXPECT_EQ(100, current_result->segment_id);
}
} // namespace segmentation_platform
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