Peter Qiu | bf8e36c | 2014-12-03 22:59:45 -0800 | [diff] [blame] | 1 | // Copyright 2014 The Chromium OS Authors. All rights reserved. |
| 2 | // Use of this source code is governed by a BSD-style license that can be |
| 3 | // found in the LICENSE file. |
| 4 | |
| 5 | #include "apmanager/dhcp_server.h" |
| 6 | |
| 7 | #include <string> |
| 8 | |
| 9 | #include <net/if.h> |
| 10 | |
| 11 | #include <base/strings/string_util.h> |
| 12 | #include <base/strings/stringprintf.h> |
| 13 | #include <chromeos/dbus/service_constants.h> |
| 14 | #include <chromeos/process_mock.h> |
| 15 | #include <gmock/gmock.h> |
| 16 | #include <gtest/gtest.h> |
| 17 | #include <shill/net/mock_rtnl_handler.h> |
| 18 | |
| 19 | using chromeos::ProcessMock; |
| 20 | using ::testing::_; |
| 21 | using ::testing::Mock; |
| 22 | using ::testing::Return; |
| 23 | using std::string; |
| 24 | |
| 25 | namespace { |
| 26 | const uint16_t kServerAddressIndex = 1; |
| 27 | const char kTestInterfaceName[] = "test_interface"; |
| 28 | const char kBinSleep[] = "/bin/sleep"; |
| 29 | const char kExpectedDnsmasqConfigFile[] = |
| 30 | "port=0\n" |
| 31 | "bind-interfaces\n" |
| 32 | "log-dhcp\n" |
Peter Qiu | e1ed1cd | 2014-12-06 16:03:35 -0800 | [diff] [blame^] | 33 | "keep-in-foreground\n" |
| 34 | "user=root\n" |
Peter Qiu | bf8e36c | 2014-12-03 22:59:45 -0800 | [diff] [blame] | 35 | "dhcp-range=192.168.1.1,192.168.1.128\n" |
| 36 | "interface=test_interface\n" |
| 37 | "dhcp-leasefile=/tmp/dhcpd-1.leases\n"; |
| 38 | } // namespace |
| 39 | |
| 40 | namespace apmanager { |
| 41 | |
| 42 | class DHCPServerTest : public testing::Test { |
| 43 | public: |
| 44 | DHCPServerTest() |
| 45 | : dhcp_server_(new DHCPServer(kServerAddressIndex, kTestInterfaceName)), |
| 46 | rtnl_handler_(new shill::MockRTNLHandler()) {} |
| 47 | virtual ~DHCPServerTest() {} |
| 48 | |
| 49 | virtual void SetUp() { |
| 50 | dhcp_server_->rtnl_handler_ = rtnl_handler_.get(); |
| 51 | } |
| 52 | |
| 53 | virtual void TearDown() { |
| 54 | // Reset DHCP server now while RTNLHandler is still valid. |
| 55 | dhcp_server_.reset(); |
| 56 | } |
| 57 | |
| 58 | void StartDummyProcess() { |
| 59 | dhcp_server_->dnsmasq_process_.reset(new chromeos::ProcessImpl); |
| 60 | dhcp_server_->dnsmasq_process_->AddArg(kBinSleep); |
| 61 | dhcp_server_->dnsmasq_process_->AddArg("12345"); |
| 62 | CHECK(dhcp_server_->dnsmasq_process_->Start()); |
| 63 | } |
| 64 | |
| 65 | string GenerateConfigFile() { |
| 66 | return dhcp_server_->GenerateConfigFile(); |
| 67 | } |
| 68 | |
| 69 | protected: |
| 70 | std::unique_ptr<DHCPServer> dhcp_server_; |
| 71 | std::unique_ptr<shill::MockRTNLHandler> rtnl_handler_; |
| 72 | }; |
| 73 | |
| 74 | |
| 75 | TEST_F(DHCPServerTest, GenerateConfigFile) { |
| 76 | string config_content = GenerateConfigFile(); |
| 77 | EXPECT_STREQ(kExpectedDnsmasqConfigFile, config_content.c_str()) |
| 78 | << "Expected to find the following config...\n" |
| 79 | << kExpectedDnsmasqConfigFile << ".....\n" |
| 80 | << config_content; |
| 81 | } |
| 82 | |
| 83 | TEST_F(DHCPServerTest, StartWhenServerAlreadyStarted) { |
| 84 | StartDummyProcess(); |
| 85 | |
| 86 | EXPECT_FALSE(dhcp_server_->Start()); |
| 87 | } |
| 88 | |
| 89 | TEST_F(DHCPServerTest, StartSuccess) { |
| 90 | const int kInterfaceIndex = 1; |
| 91 | EXPECT_CALL(*rtnl_handler_.get(), GetInterfaceIndex(kTestInterfaceName)) |
| 92 | .WillOnce(Return(kInterfaceIndex)); |
| 93 | EXPECT_CALL(*rtnl_handler_.get(), |
| 94 | AddInterfaceAddress(kInterfaceIndex, _, _, _)).Times(1); |
| 95 | EXPECT_CALL(*rtnl_handler_.get(), |
| 96 | SetInterfaceFlags(kInterfaceIndex, IFF_UP, IFF_UP)).Times(1); |
| 97 | // This will attempt to start a real dnsmasq process, and won't cause any |
| 98 | // trouble since the interface name specified is invalid. This can be avoid |
| 99 | // once we move to use ProcessFactory for process creation, which allows us |
| 100 | // to use the MockProcess instead of the real Process. |
| 101 | EXPECT_TRUE(dhcp_server_->Start()); |
| 102 | Mock::VerifyAndClearExpectations(rtnl_handler_.get()); |
| 103 | } |
| 104 | |
| 105 | } // namespace apmanager |