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// Copyright 2023 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/device_reauth/device_authenticator_common.h"
#include <memory>
#include <string>
#include "base/functional/callback.h"
#include "base/notreached.h"
#include "base/test/task_environment.h"
#include "base/time/time.h"
#include "components/device_reauth/device_authenticator.h"
#include "testing/gtest/include/gtest/gtest.h"
namespace {
// Implementation of DeviceAuthenticatorCommon for testing.
class FakeDeviceAuthenticatorCommon : public DeviceAuthenticatorCommon {
public:
using DeviceAuthenticatorCommon::NeedsToAuthenticate;
using DeviceAuthenticatorCommon::RecordAuthenticationTimeIfSuccessful;
FakeDeviceAuthenticatorCommon(DeviceAuthenticatorProxy* proxy,
base::TimeDelta auth_validity_period);
~FakeDeviceAuthenticatorCommon() override;
bool CanAuthenticateWithBiometrics() override;
bool CanAuthenticateWithBiometricOrScreenLock() override;
void AuthenticateWithMessage(const std::u16string& message,
AuthenticateCallback callback) override;
#if BUILDFLAG(IS_ANDROID)
device_reauth::BiometricStatus GetBiometricAvailabilityStatus() override;
#endif
void Cancel() override;
};
FakeDeviceAuthenticatorCommon::FakeDeviceAuthenticatorCommon(
DeviceAuthenticatorProxy* proxy,
base::TimeDelta auth_validity_period)
: DeviceAuthenticatorCommon(proxy, auth_validity_period, "") {}
FakeDeviceAuthenticatorCommon::~FakeDeviceAuthenticatorCommon() = default;
bool FakeDeviceAuthenticatorCommon::CanAuthenticateWithBiometrics() {
NOTIMPLEMENTED();
return false;
}
bool FakeDeviceAuthenticatorCommon::CanAuthenticateWithBiometricOrScreenLock() {
NOTIMPLEMENTED();
return false;
}
void FakeDeviceAuthenticatorCommon::Cancel() {
NOTIMPLEMENTED();
}
void FakeDeviceAuthenticatorCommon::AuthenticateWithMessage(
const std::u16string& message,
AuthenticateCallback callback) {
NOTIMPLEMENTED();
}
#if BUILDFLAG(IS_ANDROID)
device_reauth::BiometricStatus
FakeDeviceAuthenticatorCommon::GetBiometricAvailabilityStatus() {
NOTIMPLEMENTED();
return device_reauth::BiometricStatus::kUnavailable;
}
#endif // BUILDFLAG(IS_ANDROID)
constexpr base::TimeDelta kAuthValidityPeriod = base::Seconds(60);
} // namespace
class DeviceAuthenticatorCommonTest : public testing::Test {
public:
void SetUp() override {
proxy_ = std::make_unique<DeviceAuthenticatorProxy>();
other_proxy_ = std::make_unique<DeviceAuthenticatorProxy>();
// Simulates platform specific DeviceAuthenticator received from the
// factory.
authenticator_pointer_ = std::make_unique<FakeDeviceAuthenticatorCommon>(
proxy_.get(), kAuthValidityPeriod);
authenticator_pointer_other_profile_ =
std::make_unique<FakeDeviceAuthenticatorCommon>(other_proxy_.get(),
kAuthValidityPeriod);
}
DeviceAuthenticatorProxy* proxy() { return proxy_.get(); }
FakeDeviceAuthenticatorCommon* authenticator_pointer() {
return authenticator_pointer_.get();
}
FakeDeviceAuthenticatorCommon* authenticator_pointer_other_profile() {
return authenticator_pointer_other_profile_.get();
}
base::test::TaskEnvironment& task_environment() { return task_environment_; }
private:
base::test::TaskEnvironment task_environment_{
base::test::TaskEnvironment::TimeSource::MOCK_TIME};
std::unique_ptr<DeviceAuthenticatorProxy> proxy_;
std::unique_ptr<DeviceAuthenticatorProxy> other_proxy_;
std::unique_ptr<FakeDeviceAuthenticatorCommon> authenticator_pointer_;
std::unique_ptr<FakeDeviceAuthenticatorCommon>
authenticator_pointer_other_profile_;
};
// Checks if user can perform an operation without reauthenticating during
// `kAuthValidityPeriod` since previous authentication. And if needs to
// authenticate after that time.
// Also checks that other profiles need to authenticate.
TEST_F(DeviceAuthenticatorCommonTest, NeedAuthentication) {
authenticator_pointer()->RecordAuthenticationTimeIfSuccessful(
/*success=*/true);
task_environment().FastForwardBy(kAuthValidityPeriod / 2);
EXPECT_FALSE(authenticator_pointer()->NeedsToAuthenticate());
EXPECT_TRUE(authenticator_pointer_other_profile()->NeedsToAuthenticate());
task_environment().FastForwardBy(kAuthValidityPeriod);
EXPECT_TRUE(authenticator_pointer()->NeedsToAuthenticate());
}
// Checks that user cannot perform an operation without reauthenticating when
// `kAuthValidityPeriod` is 0.
TEST_F(DeviceAuthenticatorCommonTest, NeedAuthenticationImmediately) {
auto authenticator_pointer_0_seconds =
std::make_unique<FakeDeviceAuthenticatorCommon>(proxy(),
base::Seconds(0));
authenticator_pointer_0_seconds->RecordAuthenticationTimeIfSuccessful(
/*success=*/true);
EXPECT_TRUE(authenticator_pointer_0_seconds->NeedsToAuthenticate());
}
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