api: Add MockDtmfSender

Similar mocks are used internally, there should only be one in WebRTC.

Bug: None
Change-Id: Ic5163ae0c554c602344a0d25d17c3f0d46fc2e95
Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/261955
Auto-Submit: Florent Castelli <orphis@webrtc.org>
Reviewed-by: Niels Moller <nisse@webrtc.org>
Commit-Queue: Florent Castelli <orphis@webrtc.org>
Reviewed-by: Harald Alvestrand <hta@webrtc.org>
Cr-Commit-Position: refs/heads/main@{#36864}

api/BUILD.gn

@@ -919,6 +919,17 @@ if (rtc_include_tests) {
     ]
   }
 
+  rtc_source_set("mock_dtmf_sender") {
+    visibility = [ "*" ]
+    testonly = true
+    sources = [ "test/mock_dtmf_sender.h" ]
+
+    deps = [
+      ":libjingle_peerconnection_api",
+      "../test:test_support",
+    ]
+  }
+
   rtc_source_set("mock_fec_controller_override") {
     visibility = [ "*" ]
     testonly = true
@@ -1229,6 +1240,7 @@ if (rtc_include_tests) {
       ":mock_audio_mixer",
       ":mock_audio_sink",
       ":mock_data_channel",
+      ":mock_dtmf_sender",
       ":mock_frame_decryptor",
       ":mock_frame_encryptor",
       ":mock_media_stream_interface",

api/test/compile_all_headers.cc

@@ -34,6 +34,7 @@
 #include "api/test/mock_audio_mixer.h"
 #include "api/test/mock_audio_sink.h"
 #include "api/test/mock_data_channel.h"
+#include "api/test/mock_dtmf_sender.h"
 #include "api/test/mock_frame_decryptor.h"
 #include "api/test/mock_frame_encryptor.h"
 #include "api/test/mock_media_stream_interface.h"

api/test/mock_dtmf_sender.h

@@ -0,0 +1,56 @@
+/*
+ *  Copyright 2022 The WebRTC project authors. All Rights Reserved.
+ *
+ *  Use of this source code is governed by a BSD-style license
+ *  that can be found in the LICENSE file in the root of the source
+ *  tree. An additional intellectual property rights grant can be found
+ *  in the file PATENTS.  All contributing project authors may
+ *  be found in the AUTHORS file in the root of the source tree.
+ */
+
+#ifndef API_TEST_MOCK_DTMF_SENDER_H_
+#define API_TEST_MOCK_DTMF_SENDER_H_
+
+#include <string>
+
+#include "api/dtmf_sender_interface.h"
+#include "test/gmock.h"
+
+namespace webrtc {
+
+class MockDtmfSenderObserver : public DtmfSenderObserverInterface {
+ public:
+  MOCK_METHOD(void,
+              OnToneChange,
+              (const std::string&, const std::string&),
+              (override));
+  MOCK_METHOD(void, OnToneChange, (const std::string&), (override));
+};
+
+static_assert(!std::is_abstract_v<MockDtmfSenderObserver>, "");
+
+class MockDtmfSender : public DtmfSenderInterface {
+ public:
+  static rtc::scoped_refptr<MockDtmfSender> Create() {
+    return rtc::make_ref_counted<MockDtmfSender>();
+  }
+
+  MOCK_METHOD(void,
+              RegisterObserver,
+              (DtmfSenderObserverInterface * observer),
+              (override));
+  MOCK_METHOD(void, UnregisterObserver, (), (override));
+  MOCK_METHOD(bool, CanInsertDtmf, (), (override));
+  MOCK_METHOD(std::string, tones, (), (const override));
+  MOCK_METHOD(int, duration, (), (const override));
+  MOCK_METHOD(int, inter_tone_gap, (), (const override));
+
+ protected:
+  MockDtmfSender() = default;
+};
+
+static_assert(!std::is_abstract_v<rtc::RefCountedObject<MockDtmfSender>>, "");
+
+}  // namespace webrtc
+
+#endif  // API_TEST_MOCK_DTMF_SENDER_H_