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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/metrics/metrics_data_validation.h"
#include "base/test/scoped_feature_list.h"
#include "testing/gtest/include/gtest/gtest.h"
namespace metrics {
namespace {
TEST(MetricsDataValidationTest, TestGetPseudoMetricsSampleNumeric) {
const double sample = 100;
{
base::test::ScopedFeatureList scoped_feature_list;
// When the feature is not enabled, |sample| should not be changed.
EXPECT_DOUBLE_EQ(GetPseudoMetricsSample(sample), sample);
}
{
base::test::ScopedFeatureList scoped_feature_list;
// Small effect size.
scoped_feature_list.InitAndEnableFeatureWithParameters(
internal::kPseudoMetricsEffectFeature,
{{"multiplicative_factor", "1.02"}});
// Added a small effect size. Make sure it relects on the pseudo sample.
EXPECT_DOUBLE_EQ(GetPseudoMetricsSample(sample), 102);
}
{
base::test::ScopedFeatureList scoped_feature_list;
// Add Big effect size and additive factor.
scoped_feature_list.InitAndEnableFeatureWithParameters(
internal::kPseudoMetricsEffectFeature,
{{"multiplicative_factor", "1.10"}, {"additive_factor", "5"}});
// Added a big effect size and additive factor. Make sure it relects on the
// pseudo sample.
EXPECT_DOUBLE_EQ(GetPseudoMetricsSample(sample), 115);
}
}
TEST(MetricsDataValidationTest, TestGetPseudoMetricsSampleTimeDelta) {
// Make sure this also works for time metrics.
const base::TimeDelta sample = base::Milliseconds(100);
{
base::test::ScopedFeatureList scoped_feature_list;
EXPECT_EQ(GetPseudoMetricsSample(sample), sample);
}
{
base::test::ScopedFeatureList scoped_feature_list;
// Small effect size.
scoped_feature_list.InitAndEnableFeatureWithParameters(
internal::kPseudoMetricsEffectFeature,
{{"multiplicative_factor", "1.02"}});
EXPECT_EQ(GetPseudoMetricsSample(sample), base::Milliseconds(102));
}
{
base::test::ScopedFeatureList scoped_feature_list;
// Big effect size.
scoped_feature_list.InitAndEnableFeatureWithParameters(
internal::kPseudoMetricsEffectFeature,
{{"multiplicative_factor", "1.10"}, {"additive_factor", "5"}});
EXPECT_EQ(GetPseudoMetricsSample(sample), base::Milliseconds(115));
}
}
} // namespace
} // namespace metrics
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