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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 "chromeos/ash/components/attestation/attestation_flow_status_reporter.h"
#include "base/test/metrics/histogram_tester.h"
#include "testing/gtest/include/gtest/gtest.h"
namespace ash {
namespace attestation {
namespace {
bool IsValidEntry(int entry) {
// We only care about the fact if the flows are run or not.
entry &= 0b1111;
// There has to be at least 1 flow that runs.
if (!(entry & 0b1010)) {
return false;
}
// The fallback flow is reported to be successful, but not run.
if ((entry & 0b11) == 0b01) {
return false;
}
// The default flow is reported to be successful, but not run.
if (((entry >> 2) & 0b11) == 0b01) {
return false;
}
return true;
}
} // namespace
TEST(AttestationFlowStatusReporterTest, AllValidCombinations) {
for (int i = 0; i < (1 << 6); ++i) {
const int expected_entry = i;
// The expected entry is legal only if any flow is run.
if (!IsValidEntry(expected_entry)) {
continue;
}
base::HistogramTester histogram_tester;
// Put the reporter in an inner loop to report the UMA during destruction.
{
AttestationFlowStatusReporter reporter;
reporter.OnHasProxy(expected_entry & (1 << 5));
reporter.OnIsSystemProxyAvailable(expected_entry & (1 << 4));
if (expected_entry & (1 << 3)) {
reporter.OnDefaultFlowStatus(expected_entry & (1 << 2));
}
if (expected_entry & (1 << 1)) {
reporter.OnFallbackFlowStatus(expected_entry & 1);
}
}
histogram_tester.ExpectUniqueSample(
"ChromeOS.Attestation.AttestationFlowStatus", expected_entry, 1);
}
}
} // namespace attestation
} // namespace ash
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