tests/client_interface_impl_unittest.cpp

/*
 * Copyright (C) 2016, The Android Open Source Project
 *
 * 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
 *
 *     http://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 <memory>
#include <vector>

#include <gmock/gmock.h>
#include <gtest/gtest.h>
#include <wifi_system_test/mock_interface_tool.h>

#include "wificond/client_interface_impl.h"
#include "wificond/tests/mock_netlink_manager.h"
#include "wificond/tests/mock_netlink_utils.h"
#include "wificond/tests/mock_scan_utils.h"

using android::wifi_system::MockInterfaceTool;
using std::unique_ptr;
using std::vector;
using testing::NiceMock;
using testing::Return;
using testing::_;

namespace android {
namespace wificond {
namespace {

const uint32_t kTestWiphyIndex = 2;
const char kTestInterfaceName[] = "testwifi0";
const uint32_t kTestInterfaceIndex = 42;
const size_t kMacAddrLenBytes = ETH_ALEN;

class ClientInterfaceImplTest : public ::testing::Test {
 protected:

  void SetUp() override {
    EXPECT_CALL(*netlink_utils_,
                SubscribeMlmeEvent(kTestInterfaceIndex, _));
    EXPECT_CALL(*netlink_utils_,
                GetWiphyInfo(kTestWiphyIndex, _, _, _));
    client_interface_.reset(new ClientInterfaceImpl{
        kTestWiphyIndex,
        kTestInterfaceName,
        kTestInterfaceIndex,
        vector<uint8_t>{0x00, 0x00, 0x00, 0x00, 0x00, 0x00},
        if_tool_.get(),
        netlink_utils_.get(),
        scan_utils_.get()});
  }

  void TearDown() override {
    EXPECT_CALL(*netlink_utils_,
                UnsubscribeMlmeEvent(kTestInterfaceIndex));
  }

  unique_ptr<NiceMock<MockInterfaceTool>> if_tool_{
      new NiceMock<MockInterfaceTool>};
  unique_ptr<NiceMock<MockNetlinkManager>> netlink_manager_{
      new NiceMock<MockNetlinkManager>()};
  unique_ptr<NiceMock<MockNetlinkUtils>> netlink_utils_{
      new NiceMock<MockNetlinkUtils>(netlink_manager_.get())};
  unique_ptr<NiceMock<MockScanUtils>> scan_utils_{
      new NiceMock<MockScanUtils>(netlink_manager_.get())};
  unique_ptr<ClientInterfaceImpl> client_interface_;
};  // class ClientInterfaceImplTest

}  // namespace

TEST_F(ClientInterfaceImplTest, SetMacAddressFailsOnInvalidInput) {
  EXPECT_FALSE(client_interface_->SetMacAddress(
      std::vector<uint8_t>(kMacAddrLenBytes - 1)));
  EXPECT_FALSE(client_interface_->SetMacAddress(
      std::vector<uint8_t>(kMacAddrLenBytes + 1)));
}

TEST_F(ClientInterfaceImplTest, SetMacAddressFailsOnInterfaceDownFailure) {
  EXPECT_CALL(*if_tool_, SetWifiUpState(false)).WillOnce(Return(false));
  EXPECT_FALSE(
      client_interface_->SetMacAddress(std::vector<uint8_t>(kMacAddrLenBytes)));
}

TEST_F(ClientInterfaceImplTest, SetMacAddressFailsOnAddressChangeFailure) {
  EXPECT_CALL(*if_tool_, SetWifiUpState(false)).WillOnce(Return(true));
  EXPECT_CALL(*if_tool_, SetMacAddress(_, _)).WillOnce(Return(false));
  EXPECT_FALSE(
      client_interface_->SetMacAddress(std::vector<uint8_t>(kMacAddrLenBytes)));
}

TEST_F(ClientInterfaceImplTest, SetMacAddressFailsOnInterfaceUpFailure) {
  EXPECT_CALL(*if_tool_, SetWifiUpState(false)).WillOnce(Return(true));
  EXPECT_CALL(*if_tool_, SetMacAddress(_, _)).WillOnce(Return(true));
  EXPECT_CALL(*if_tool_, SetWifiUpState(true)).WillOnce(Return(false));
  EXPECT_FALSE(
      client_interface_->SetMacAddress(std::vector<uint8_t>(kMacAddrLenBytes)));
}

TEST_F(ClientInterfaceImplTest, SetMacAddressReturnsTrueOnSuccess) {
  EXPECT_CALL(*if_tool_, SetWifiUpState(false)).WillOnce(Return(true));
  EXPECT_CALL(*if_tool_, SetMacAddress(_, _)).WillOnce(Return(true));
  EXPECT_CALL(*if_tool_, SetWifiUpState(true)).WillOnce(Return(true));
  EXPECT_TRUE(
      client_interface_->SetMacAddress(std::vector<uint8_t>(kMacAddrLenBytes)));
}

TEST_F(ClientInterfaceImplTest, SetMacAddressPassesCorrectAddressToIfTool) {
  EXPECT_CALL(*if_tool_, SetWifiUpState(false)).WillOnce(Return(true));
  EXPECT_CALL(*if_tool_, SetMacAddress(_,
      std::array<uint8_t, kMacAddrLenBytes>{{1, 2, 3, 4, 5, 6}}))
    .WillOnce(Return(true));
  EXPECT_CALL(*if_tool_, SetWifiUpState(true)).WillOnce(Return(true));
  EXPECT_TRUE(client_interface_->SetMacAddress(
      std::vector<uint8_t>{1, 2, 3, 4, 5, 6}));
}

}  // namespace wificond
}  // namespace android