cros: Fake implementation of DBUS biometrics client.

chromeos/dbus/biod/fake_biod_client.h

+// Copyright 2017 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#ifndef CHROMEOS_DBUS_BIOD_FAKE_BIOD_CLIENT_H_
+#define CHROMEOS_DBUS_BIOD_FAKE_BIOD_CLIENT_H_
+
+#include "base/macros.h"
+#include "base/observer_list.h"
+#include "chromeos/chromeos_export.h"
+#include "chromeos/dbus/biod/biod_client.h"
+
+namespace dbus {
+class Bus;
+class ObjectPath;
+}  // namespace dbus
+
+namespace chromeos {
+
+// A fake implementation of BiodClient.
+class CHROMEOS_EXPORT FakeBiodClient : public BiodClient {
+ public:
+  FakeBiodClient();
+  ~FakeBiodClient() override;
+
+  // Notifies |observers_| about various events.
+  void NotifyEnrollScanDoneReceived(biod::ScanResult type_result,
+                                    bool is_complete);
+  void NotifyAuthScanDoneReceived(biod::ScanResult type_result,
+                                  const AuthScanMatches& matches);
+  void NotifySessionFailedReceived();

[stevenjb, 2017/04/04 17:07:31]

Could you add a comment about where / how these are going to be used? I don't
see them getting called in the followup CLs, and since they don't override
anything it is unclear where / how they ever would be called.

[sammiequon, 2017/04/04 18:31:01]

I changed it a bit to better match how it is planned on being used.

+
+  // BiodClient:
+  void Init(dbus::Bus* bus) override;
+  void AddObserver(Observer* observer) override;
+  void RemoveObserver(Observer* observer) override;
+  bool HasObserver(const Observer* observer) const override;
+  void StartEnrollSession(const std::string& user_id,
+                          const std::string& label,
+                          const ObjectPathCallback& callback) override;
+  void GetRecordsForUser(const std::string& user_id,
+                         const UserRecordsCallback& callback) override;
+  void DestroyAllRecords() override;
+  void StartAuthSession(const ObjectPathCallback& callback) override;
+  void RequestType(const BiometricTypeCallback& callback) override;
+  void CancelEnrollSession(
+      const dbus::ObjectPath& enroll_session_path) override;
+  void EndAuthSession(const dbus::ObjectPath& auth_session_path) override;
+  void SetRecordLabel(const dbus::ObjectPath& record_path,
+                      const std::string& label) override;
+  void RemoveRecord(const dbus::ObjectPath& record_path) override;
+  void RequestRecordLabel(const dbus::ObjectPath& record_path,
+                          const LabelCallback& callback) override;
+
+ private:
+  base::ObserverList<Observer> observers_;
+
+  DISALLOW_COPY_AND_ASSIGN(FakeBiodClient);
+};
+
+}  // namespace chromeos
+
+#endif  // CHROMEOS_DBUS_BIOD_FAKE_BIOD_CLIENT_H_