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Side by Side Diff: net/quic/port_suggester_unittest.cc

Issue 992733002: Remove //net (except for Android test stuff) and sdch (Closed) Base URL: git@github.com:domokit/mojo.git@master
Patch Set: Created 5 years, 9 months ago
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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
5 #include "net/quic/port_suggester.h"
6
7 #include <set>
8
9 #include "base/basictypes.h"
10 #include "net/base/host_port_pair.h"
11 #include "testing/gtest/include/gtest/gtest.h"
12
13 namespace net {
14 namespace test {
15
16 class PortSuggesterTest : public ::testing::Test {
17 protected:
18 PortSuggesterTest()
19 : entropy_(1345689),
20 min_ephemeral_port_(1025),
21 max_ephemeral_port_(65535) {
22 }
23
24 uint64 entropy_;
25 int min_ephemeral_port_;
26 int max_ephemeral_port_;
27 };
28
29 TEST_F(PortSuggesterTest, SmallRangeTest) {
30 // When the range is small (one wide), we always get that as our answer.
31 scoped_refptr<PortSuggester> port_suggester =
32 new PortSuggester(HostPortPair("www.example.com", 443), entropy_);
33 // Test this for a few different (small) ranges.
34 for (int port = 2000; port < 2010; ++port) {
35 // Use |port| for both |min| and |max| delimiting the suggestion range.
36 EXPECT_EQ(port, port_suggester->SuggestPort(port, port));
37 EXPECT_EQ(port, port_suggester->previous_suggestion());
38 }
39 }
40
41 TEST_F(PortSuggesterTest, SuggestAllPorts) {
42 // We should eventually fill out any range, but we'll just ensure that we
43 // fill out a small range of ports.
44 scoped_refptr<PortSuggester> port_suggester =
45 new PortSuggester(HostPortPair("www.example.com", 443), entropy_);
46 std::set<int> ports;
47 const uint32 port_range = 20;
48 const int insertion_limit = 200; // We should be done by then.
49 for (int i = 0; i < insertion_limit; ++i) {
50 ports.insert(port_suggester->SuggestPort(min_ephemeral_port_,
51 min_ephemeral_port_ + port_range - 1));
52 if (ports.size() == port_range) {
53 break;
54 }
55 }
56 EXPECT_EQ(port_range, ports.size());
57 }
58
59 TEST_F(PortSuggesterTest, AvoidDuplication) {
60 // When the range is large, duplicates are rare, but we'll ask for a few
61 // suggestions and make sure they are unique.
62 scoped_refptr<PortSuggester> port_suggester =
63 new PortSuggester(HostPortPair("www.example.com", 80), entropy_);
64 std::set<int> ports;
65 const size_t port_count = 200;
66 for (size_t i = 0; i < port_count; ++i) {
67 ports.insert(port_suggester->SuggestPort(min_ephemeral_port_,
68 max_ephemeral_port_));
69 }
70 EXPECT_EQ(port_suggester->call_count(), port_count);
71 EXPECT_EQ(port_count, ports.size());
72 }
73
74 TEST_F(PortSuggesterTest, ConsistentPorts) {
75 // For given hostname, port, and entropy, we should always get the same
76 // suggestions.
77 scoped_refptr<PortSuggester> port_suggester1 =
78 new PortSuggester(HostPortPair("www.example.com", 443), entropy_);
79 scoped_refptr<PortSuggester> port_suggester2 =
80 new PortSuggester(HostPortPair("www.example.com", 443), entropy_);
81 for (int test_count = 20; test_count > 0; --test_count) {
82 EXPECT_EQ(port_suggester1->SuggestPort(min_ephemeral_port_,
83 min_ephemeral_port_),
84 port_suggester2->SuggestPort(min_ephemeral_port_,
85 min_ephemeral_port_));
86 }
87 }
88
89 TEST_F(PortSuggesterTest, DifferentHostPortEntropy) {
90 // When we have different hosts, port, or entropy, we probably won't collide.
91 scoped_refptr<PortSuggester> port_suggester[] = {
92 new PortSuggester(HostPortPair("www.example.com", 80), entropy_),
93 new PortSuggester(HostPortPair("www.example.ORG", 80), entropy_),
94 new PortSuggester(HostPortPair("www.example.com", 443), entropy_),
95 new PortSuggester(HostPortPair("www.example.com", 80), entropy_ + 123456),
96 };
97
98 std::set<int> ports;
99 const int port_count = 40;
100 size_t insertion_count = 0;
101 for (size_t j = 0; j < arraysize(port_suggester); ++j) {
102 for (int i = 0; i < port_count; ++i) {
103 ports.insert(port_suggester[j]->SuggestPort(min_ephemeral_port_,
104 max_ephemeral_port_));
105 ++insertion_count;
106 }
107 }
108 EXPECT_EQ(insertion_count, ports.size());
109 }
110
111 } // namespace test
112 } // namespace net
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