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// Copyright 2022 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_log.h"
#include "base/command_line.h"
#include "build/build_config.h"
#include "chrome/browser/browser_process.h"
#include "chrome/common/chrome_switches.h"
#include "chrome/test/base/platform_browser_test.h"
#include "components/metrics/test/test_metrics_service_client.h"
#include "components/variations/hashing.h"
#include "components/webui/flags/flags_ui_switches.h"
#include "content/public/test/browser_test.h"
#include "third_party/metrics_proto/chrome_user_metrics_extension.pb.h"
#include "third_party/metrics_proto/system_profile.pb.h"
namespace metrics {
class MetricsLogBrowserTest : public PlatformBrowserTest {
public:
MetricsLogBrowserTest() = default;
~MetricsLogBrowserTest() override = default;
void SetUpCommandLine(base::CommandLine* command_line) override {
PlatformBrowserTest::SetUpCommandLine(command_line);
command_line->AppendSwitch(switches::kNoStartupWindow);
command_line->AppendSwitch(switches::kFlagSwitchesBegin);
command_line->AppendSwitch(switches::kFlagSwitchesEnd);
}
};
// Verify that system profile contains filtered command line keys.
IN_PROC_BROWSER_TEST_F(MetricsLogBrowserTest, CommandLineKeyHash) {
TestMetricsServiceClient client;
MetricsLog log("0a94430b-18e5-43c8-a657-580f7e855ce1", 0,
MetricsLog::INITIAL_STABILITY_LOG, &client);
std::string encoded;
// Don't set the close_time param since this is an initial stability log.
log.FinalizeLog(/*truncate_events=*/false, client.GetVersionString(),
/*close_time=*/std::nullopt, &encoded);
ChromeUserMetricsExtension uma_proto;
uma_proto.ParseFromString(encoded);
const auto hashes = uma_proto.system_profile().command_line_key_hash();
bool found_startup_window_cmd = false;
for (const auto hash : hashes) {
// These two should be filtered out.
EXPECT_NE(variations::HashName(switches::kFlagSwitchesBegin), hash);
EXPECT_NE(variations::HashName(switches::kFlagSwitchesEnd), hash);
// This one should appear.
if (hash == variations::HashName(switches::kNoStartupWindow)) {
found_startup_window_cmd = true;
continue;
}
}
EXPECT_TRUE(found_startup_window_cmd);
}
} // namespace metrics
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