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// Copyright 2014 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/metrics/metrics_hashes.h"
#include <stddef.h>
#include <stdint.h>
#include <array>
#include "base/format_macros.h"
#include "base/strings/stringprintf.h"
#include "testing/gtest/include/gtest/gtest.h"
namespace base {
struct Cases {
std::string input;
std::string output;
};
// Make sure our ID hashes are the same as what we see on the server side.
TEST(MetricsHashesTest, HashMetricName) {
// The cases must match those in //tools/metrics/ukm/codegen_test.py.
static const auto cases = std::to_array<Cases>({
{"Back", "0x0557fa923dcee4d0"},
{"NewTab", "0x290eb683f96572f1"},
{"Forward", "0x67d2f6740a8eaebf"},
});
for (const auto& i : cases) {
uint64_t hash = HashMetricName(i.input);
std::string hash_hex = base::StringPrintf("0x%016" PRIx64, hash);
EXPECT_EQ(i.output, hash_hex);
}
}
TEST(MetricsHashesTest, HashMetricNameAs32Bits) {
// The cases must match those in //tools/metrics/ukm/codegen_test.py.
static const auto cases = std::to_array<Cases>({
{"Back", "0x0557fa92"},
{"NewTab", "0x290eb683"},
{"Forward", "0x67d2f674"},
});
for (const auto& i : cases) {
uint32_t hash = HashMetricNameAs32Bits(i.input);
std::string hash_hex = base::StringPrintf("0x%08" PRIx32, hash);
EXPECT_EQ(i.output, hash_hex);
}
}
TEST(MetricsHashesTest, ParseMetricHashTo32Bits) {
static const auto cases = std::to_array<Cases>({
{"Back", "0x0557fa92"},
{"NewTab", "0x290eb683"},
{"Forward", "0x67d2f674"},
});
for (const auto& i : cases) {
uint64_t hash_64 = HashMetricName(i.input);
uint32_t hash_32 = ParseMetricHashTo32Bits(hash_64);
std::string hash_hex = base::StringPrintf("0x%08" PRIx32, hash_32);
EXPECT_EQ(i.output, hash_hex);
}
}
} // namespace base
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