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base / test / metrics / histogram_variants_reader_unittest.cc [blame]
// 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 "base/test/metrics/histogram_variants_reader.h"
#include <optional>
#include "testing/gmock/include/gmock/gmock.h"
#include "testing/gtest/include/gtest/gtest.h"
namespace base {
TEST(HistogramVariantsReaderTest, SanityChecks) {
// NOTE: This results in a dependency on a histogram.xml file, but to
// otherwise inject content would circumvent a lot of the logic of the
// method and add additional complexity.
//
// The test file with the "TestToken" variant can be found at:
// `//tools/metrics/histograms/test_data/histograms.xml`
std::optional<HistogramVariantsEntryMap> results =
ReadVariantsFromHistogramsXml("TestToken", "test_data",
/*from_metadata=*/false);
ASSERT_TRUE(results);
EXPECT_THAT(*results, testing::UnorderedElementsAre(
std::make_pair("Variant1", "Label1"),
std::make_pair("Variant2", "Label2")));
results = ReadVariantsFromHistogramsXml("TheWorstNameForVariants",
"test_data", /*from_metadata=*/false);
ASSERT_FALSE(results);
}
} // namespace base