text: // Copyright 2020 Google LLC
  //
  // Licensed under the Apache License, Version 2.0 (the "License");
  // you may not use this file except in compliance with the License.
  // You may obtain a copy of the License at
  //
  //     https://www.apache.org/licenses/LICENSE-2.0
  //
  // Unless required by applicable law or agreed to in writing, software
  // distributed under the License is distributed on an "AS IS" BASIS,
  // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  // See the License for the specific language governing permissions and
  // limitations under the License.
  
  #include "core/listeners.h"
  
  #include <memory>
  #include <utility>
  
  #include "gmock/gmock.h"
  #include "gtest/gtest.h"
  
  namespace location {
  namespace nearby {
  namespace connections {
  namespace {
  
  TEST(ListenersTest, EnsureDefaultInitializedIsCallable) {
    ConnectionListener listener;
    std::string endpoint_id("endpoint_id");
    listener.initiated_cb(endpoint_id, ConnectionResponseInfo());
    listener.accepted_cb(endpoint_id);
    listener.rejected_cb(endpoint_id, {Status::kError});
    listener.disconnected_cb(endpoint_id);
    listener.bandwidth_changed_cb(endpoint_id, Medium());
    SUCCEED();
  }
  
  TEST(ListenersTest, EnsurePartiallyInitializedIsCallable) {
    std::string endpoint_id = {"endpoint_id"};
    bool initiated_cb_called = false;
    ConnectionListener listener{
        .initiated_cb =
            [&](std::string, ConnectionResponseInfo) {
              initiated_cb_called = true;
            },
    };
    listener.initiated_cb(endpoint_id, ConnectionResponseInfo());
    listener.accepted_cb(endpoint_id);
    listener.rejected_cb(endpoint_id, {Status::kError});
    listener.disconnected_cb(endpoint_id);
    listener.bandwidth_changed_cb(endpoint_id, Medium());
    EXPECT_TRUE(initiated_cb_called);
  }
  
  }  // namespace
  }  // namespace connections
  }  // namespace nearby
  }  // namespace location
  