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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 "chrome/browser/device_reauth/android/device_authenticator_android.h"
#include <memory>
#include "base/functional/callback.h"
#include "base/functional/callback_helpers.h"
#include "base/memory/raw_ptr.h"
#include "base/metrics/histogram.h"
#include "base/test/gmock_callback_support.h"
#include "base/test/metrics/histogram_tester.h"
#include "base/test/mock_callback.h"
#include "base/test/task_environment.h"
#include "base/time/time.h"
#include "chrome/browser/device_reauth/android/device_authenticator_bridge.h"
#include "components/device_reauth/device_authenticator.h"
#include "content/public/test/browser_task_environment.h"
#include "testing/gmock/include/gmock/gmock.h"
#include "testing/gtest/include/gtest/gtest.h"
namespace {
using base::Bucket;
using base::test::RunOnceCallback;
using device_reauth::BiometricsAvailability;
using device_reauth::DeviceAuthenticator;
using device_reauth::DeviceAuthUIResult;
using testing::_;
using testing::ElementsAre;
using testing::Return;
class MockDeviceAuthenticatorBridge : public DeviceAuthenticatorBridge {
public:
MOCK_METHOD(BiometricsAvailability,
CanAuthenticateWithBiometric,
(),
(override));
MOCK_METHOD(bool, CanAuthenticateWithBiometricOrScreenLock, (), (override));
MOCK_METHOD(void,
Authenticate,
(base::OnceCallback<void(device_reauth::DeviceAuthUIResult)>
response_callback),
(override));
MOCK_METHOD(void, Cancel, (), (override));
};
} // namespace
class DeviceAuthenticatorAndroidTest : public testing::Test {
public:
DeviceAuthenticatorAndroidTest()
: device_authenticator_params_(
base::Seconds(60),
device_reauth::DeviceAuthSource::kPasswordManager) {}
void SetUp() override {
std::unique_ptr<MockDeviceAuthenticatorBridge> bridge =
std::make_unique<MockDeviceAuthenticatorBridge>();
bridge_ = bridge.get();
authenticator_ = std::make_unique<DeviceAuthenticatorAndroid>(
std::move(bridge), &proxy_, device_authenticator_params_);
}
DeviceAuthenticatorAndroid* authenticator() { return authenticator_.get(); }
MockDeviceAuthenticatorBridge& bridge() { return *bridge_; }
base::test::TaskEnvironment& task_environment() { return task_environment_; }
private:
DeviceAuthenticatorProxy proxy_;
device_reauth::DeviceAuthParams device_authenticator_params_;
std::unique_ptr<DeviceAuthenticatorAndroid> authenticator_;
base::test::TaskEnvironment task_environment_{
base::test::TaskEnvironment::TimeSource::MOCK_TIME};
// This is owned by the authenticator.
raw_ptr<MockDeviceAuthenticatorBridge> bridge_ = nullptr;
};
TEST_F(DeviceAuthenticatorAndroidTest, CanAuthenticateCallsBridge) {
base::HistogramTester histogram_tester;
EXPECT_CALL(bridge(), CanAuthenticateWithBiometric)
.WillOnce(Return(BiometricsAvailability::kAvailable));
EXPECT_TRUE(authenticator()->CanAuthenticateWithBiometrics());
histogram_tester.ExpectUniqueSample(
"Android.DeviceAuthenticator.CanAuthenticateWithBiometrics",
BiometricsAvailability::kAvailable, 1);
}
TEST_F(
DeviceAuthenticatorAndroidTest,
CanAuthenticateDoesNotReecordHistogramForNonPasswordManagerForIncognito) {
base::HistogramTester histogram_tester;
EXPECT_CALL(bridge(), CanAuthenticateWithBiometricOrScreenLock)
.WillOnce(Return(true));
EXPECT_TRUE(authenticator()->CanAuthenticateWithBiometricOrScreenLock());
histogram_tester.ExpectTotalCount(
"Android.DeviceAuthenticator.CanAuthenticateWithBiometrics", 0);
}
TEST_F(DeviceAuthenticatorAndroidTest, AuthenticateRecordsSource) {
base::HistogramTester histogram_tester;
authenticator()->AuthenticateWithMessage(u"", base::DoNothing());
histogram_tester.ExpectUniqueSample(
"Android.DeviceAuthenticator.AuthSource",
device_reauth::DeviceAuthSource::kPasswordManager, 1);
}
TEST_F(DeviceAuthenticatorAndroidTest, DoesntTriggerAuthIfWithin60Seconds) {
// Simulate a previous successful authentication
base::HistogramTester histogram_tester;
EXPECT_CALL(bridge(), Authenticate)
.WillOnce(RunOnceCallback<0>(DeviceAuthUIResult::kSuccessWithBiometrics));
authenticator()->AuthenticateWithMessage(u"", base::DoNothing());
// The next call to `Authenticate()` should not re-trigger an authentication.
EXPECT_CALL(bridge(), Authenticate(_)).Times(0);
base::MockCallback<DeviceAuthenticator::AuthenticateCallback> result_callback;
EXPECT_CALL(result_callback, Run(/*auth_succeeded=*/true));
authenticator()->AuthenticateWithMessage(u"", result_callback.Get());
EXPECT_THAT(
histogram_tester.GetAllSamples(
"PasswordManager.BiometricAuthPwdFill.AuthResult"),
ElementsAre(
Bucket(
static_cast<int>(DeviceAuthFinalResult::kSuccessWithBiometrics),
1),
Bucket(static_cast<int>(DeviceAuthFinalResult::kAuthStillValid), 1)));
}
TEST_F(DeviceAuthenticatorAndroidTest, TriggersAuthIfMoreThan60Seconds) {
base::HistogramTester histogram_tester;
// Simulate a previous successful authentication
EXPECT_CALL(bridge(), Authenticate)
.WillOnce(RunOnceCallback<0>(DeviceAuthUIResult::kSuccessWithBiometrics));
authenticator()->AuthenticateWithMessage(u"", base::DoNothing());
task_environment().FastForwardBy(base::Seconds(60));
// The next call to `Authenticate()` should re-trigger an authentication.
EXPECT_CALL(bridge(), Authenticate(_))
.WillOnce(RunOnceCallback<0>(DeviceAuthUIResult::kFailed));
base::MockCallback<DeviceAuthenticator::AuthenticateCallback> result_callback;
EXPECT_CALL(result_callback, Run(/*auth_succeeded=*/false));
authenticator()->AuthenticateWithMessage(u"", result_callback.Get());
EXPECT_THAT(
histogram_tester.GetAllSamples(
"PasswordManager.BiometricAuthPwdFill.AuthResult"),
ElementsAre(Bucket(static_cast<int>(
DeviceAuthFinalResult::kSuccessWithBiometrics),
1),
Bucket(static_cast<int>(DeviceAuthFinalResult::kFailed), 1)));
}
TEST_F(DeviceAuthenticatorAndroidTest, TriggersAuthIfPreviousFailed) {
base::HistogramTester histogram_tester;
// Simulate a previous failed authentication
EXPECT_CALL(bridge(), Authenticate)
.WillOnce(RunOnceCallback<0>(DeviceAuthUIResult::kFailed));
authenticator()->AuthenticateWithMessage(u"", base::DoNothing());
// The next call to `Authenticate()` should re-trigger an authentication.
EXPECT_CALL(bridge(), Authenticate(_))
.WillOnce(RunOnceCallback<0>(DeviceAuthUIResult::kSuccessWithBiometrics));
base::MockCallback<DeviceAuthenticator::AuthenticateCallback> result_callback;
EXPECT_CALL(result_callback, Run(/*auth_succeeded=*/true));
authenticator()->AuthenticateWithMessage(u"", result_callback.Get());
EXPECT_THAT(
histogram_tester.GetAllSamples(
"PasswordManager.BiometricAuthPwdFill.AuthResult"),
ElementsAre(Bucket(static_cast<int>(
DeviceAuthFinalResult::kSuccessWithBiometrics),
1),
Bucket(static_cast<int>(DeviceAuthFinalResult::kFailed), 1)));
}
TEST_F(DeviceAuthenticatorAndroidTest, GetBiometricAvailabilityStatusRequired) {
EXPECT_CALL(bridge(), CanAuthenticateWithBiometric)
.WillOnce(Return(BiometricsAvailability::kRequired));
EXPECT_EQ(device_reauth::BiometricStatus::kRequired,
authenticator()->GetBiometricAvailabilityStatus());
}
TEST_F(DeviceAuthenticatorAndroidTest,
GetBiometricAvailabilityStatusRequiredButHasErrors) {
EXPECT_CALL(bridge(), CanAuthenticateWithBiometric)
.WillOnce(Return(BiometricsAvailability::kRequiredButHasError));
EXPECT_EQ(device_reauth::BiometricStatus::kRequired,
authenticator()->GetBiometricAvailabilityStatus());
}
TEST_F(DeviceAuthenticatorAndroidTest,
GetBiometricAvailabilityStatusAvailable) {
EXPECT_CALL(bridge(), CanAuthenticateWithBiometric)
.WillOnce(Return(BiometricsAvailability::kAvailable));
EXPECT_EQ(device_reauth::BiometricStatus::kBiometricsAvailable,
authenticator()->GetBiometricAvailabilityStatus());
}
TEST_F(DeviceAuthenticatorAndroidTest,
GetBiometricAvailabilityStatusLSKFAvailable) {
EXPECT_CALL(bridge(), CanAuthenticateWithBiometric)
.WillOnce(Return(BiometricsAvailability::kNotEnrolled));
EXPECT_CALL(bridge(), CanAuthenticateWithBiometricOrScreenLock)
.WillOnce(Return(true));
EXPECT_EQ(device_reauth::BiometricStatus::kOnlyLskfAvailable,
authenticator()->GetBiometricAvailabilityStatus());
}
TEST_F(DeviceAuthenticatorAndroidTest,
GetBiometricAvailabilityStatusUnavailable) {
EXPECT_CALL(bridge(), CanAuthenticateWithBiometric)
.WillOnce(Return(BiometricsAvailability::kNotEnrolled));
EXPECT_CALL(bridge(), CanAuthenticateWithBiometricOrScreenLock)
.WillOnce(Return(false));
EXPECT_EQ(device_reauth::BiometricStatus::kUnavailable,
authenticator()->GetBiometricAvailabilityStatus());
}
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