[email protected] | 5668158 | 2013-07-28 20:08:44 | [diff] [blame] | 1 | // Copyright 2013 The Chromium 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 | |
avi | 6846aef | 2015-12-26 01:09:38 | [diff] [blame] | 5 | #include <stdint.h> |
[email protected] | 5668158 | 2013-07-28 20:08:44 | [diff] [blame] | 6 | #include <string.h> |
| 7 | |
| 8 | #include "chrome/browser/net/probe_message.h" |
| 9 | #include "chrome/browser/net/probe_message.pb.h" |
| 10 | #include "testing/gtest/include/gtest/gtest.h" |
| 11 | |
| 12 | namespace chrome_browser_net { |
| 13 | |
| 14 | class ProbeMessageTest : public ::testing::Test { |
| 15 | protected: |
| 16 | ProbeMessageTest() {} |
| 17 | |
dcheng | e1bc798 | 2014-10-30 00:32:40 | [diff] [blame] | 18 | ~ProbeMessageTest() override {} |
[email protected] | 5668158 | 2013-07-28 20:08:44 | [diff] [blame] | 19 | }; |
| 20 | |
| 21 | TEST_F(ProbeMessageTest, TestGenerateProbeRequest) { |
| 22 | ProbeMessage pm; |
| 23 | ProbePacket_Token token; |
| 24 | token.set_timestamp_micros(1000000U); |
| 25 | token.mutable_hash()->assign("1x1x"); |
avi | 6846aef | 2015-12-26 01:09:38 | [diff] [blame] | 26 | uint32_t group_id = 1; |
| 27 | uint32_t probe_size = 500; |
| 28 | uint32_t pacing_interval_micros = 1000000; |
| 29 | uint32_t number_probe_packets = 21; |
[email protected] | 5668158 | 2013-07-28 20:08:44 | [diff] [blame] | 30 | ProbePacket probe_packet; |
| 31 | pm.GenerateProbeRequest(token, |
| 32 | group_id, |
| 33 | probe_size, |
| 34 | pacing_interval_micros, |
| 35 | number_probe_packets, |
| 36 | &probe_packet); |
| 37 | |
| 38 | EXPECT_EQ(probe_packet.header().type(), ProbePacket_Type_PROBE_REQUEST); |
| 39 | EXPECT_EQ(probe_packet.header().version(), ProbeMessage::kVersion); |
| 40 | EXPECT_EQ(probe_packet.group_id(), group_id); |
| 41 | EXPECT_EQ(probe_packet.probe_size_bytes(), probe_size); |
| 42 | EXPECT_EQ(probe_packet.pacing_interval_micros(), pacing_interval_micros); |
| 43 | EXPECT_EQ(probe_packet.number_probe_packets(), number_probe_packets); |
| 44 | EXPECT_GE(probe_packet.ByteSize(), static_cast<int>(probe_size)); |
| 45 | } |
| 46 | |
| 47 | TEST_F(ProbeMessageTest, TestSetPacketHeader) { |
| 48 | ProbeMessage pm; |
| 49 | ProbePacket probe_packet; |
| 50 | pm.SetPacketHeader(ProbePacket_Type_HELLO_REQUEST, &probe_packet); |
| 51 | EXPECT_EQ(probe_packet.header().type(), ProbePacket_Type_HELLO_REQUEST); |
| 52 | EXPECT_EQ(probe_packet.header().version(), ProbeMessage::kVersion); |
| 53 | |
| 54 | pm.SetPacketHeader(ProbePacket_Type_PROBE_REPLY, &probe_packet); |
| 55 | EXPECT_EQ(probe_packet.header().type(), ProbePacket_Type_PROBE_REPLY); |
| 56 | } |
| 57 | |
| 58 | TEST_F(ProbeMessageTest, TestMakeEncodePacketAndParseInput) { |
| 59 | ProbeMessage pm; |
| 60 | ProbePacket in_packet; |
avi | 6846aef | 2015-12-26 01:09:38 | [diff] [blame] | 61 | uint32_t version = 2; |
[email protected] | 5668158 | 2013-07-28 20:08:44 | [diff] [blame] | 62 | ProbePacket_Type type = ProbePacket_Type_HELLO_REPLY; |
avi | 6846aef | 2015-12-26 01:09:38 | [diff] [blame] | 63 | uint32_t number_probe_packets = 2; |
| 64 | uint32_t group_id = 5; |
[email protected] | 5668158 | 2013-07-28 20:08:44 | [diff] [blame] | 65 | in_packet.mutable_header()->set_version(version); |
| 66 | in_packet.mutable_header()->set_type(type); |
| 67 | in_packet.set_number_probe_packets(number_probe_packets); |
| 68 | in_packet.set_group_id(group_id); |
| 69 | |
| 70 | // Encode it to string. |
| 71 | std::string output = pm.MakeEncodedPacket(in_packet); |
| 72 | // Parse to ProbePacket. |
| 73 | ProbePacket out_packet; |
| 74 | pm.ParseInput(output, &out_packet); |
| 75 | |
| 76 | EXPECT_EQ(out_packet.header().type(), type); |
| 77 | EXPECT_EQ(out_packet.header().version(), version); |
| 78 | EXPECT_EQ(out_packet.number_probe_packets(), number_probe_packets); |
| 79 | EXPECT_EQ(out_packet.group_id(), group_id); |
| 80 | } |
| 81 | |
| 82 | TEST_F(ProbeMessageTest, TestChecksum) { |
| 83 | ProbeMessage pm; |
| 84 | std::string str("ABC"); |
avi | 6846aef | 2015-12-26 01:09:38 | [diff] [blame] | 85 | uint32_t computed_checksum = pm.Checksum(str); |
| 86 | uint32_t expected_sum = 0; |
[email protected] | 5668158 | 2013-07-28 20:08:44 | [diff] [blame] | 87 | for (unsigned i = 0; i < str.size(); ++i) |
avi | 6846aef | 2015-12-26 01:09:38 | [diff] [blame] | 88 | expected_sum += static_cast<uint8_t>(str[i]); |
[email protected] | 5668158 | 2013-07-28 20:08:44 | [diff] [blame] | 89 | EXPECT_EQ(computed_checksum, expected_sum); |
| 90 | } |
| 91 | |
| 92 | TEST_F(ProbeMessageTest, TestEncode) { |
| 93 | ProbeMessage pm; |
| 94 | std::string original("ABC"); |
| 95 | std::string output = pm.Encode(original); |
| 96 | std::string expected_str(original.size(), 0); |
| 97 | for (unsigned i = 0; i < original.size(); ++i) { |
| 98 | expected_str[i] = original[i] ^ ProbeMessage::kEncodingString[i]; |
| 99 | } |
| 100 | EXPECT_EQ(output, expected_str); |
| 101 | |
| 102 | // Do it again to decode. |
| 103 | std::string twice_encoded = pm.Encode(output); |
| 104 | EXPECT_EQ(twice_encoded, original); |
| 105 | } |
| 106 | |
| 107 | } // namespace chrome_browser_net |