1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
|
// Copyright The OpenTelemetry Authors
// SPDX-License-Identifier: Apache-2.0
#include <gtest/gtest.h>
#include <stddef.h>
#include <string>
#include "opentelemetry/nostd/function_ref.h"
#include "opentelemetry/nostd/shared_ptr.h"
#include "opentelemetry/nostd/string_view.h"
#include "opentelemetry/trace/trace_state.h"
namespace
{
using opentelemetry::trace::TraceState;
namespace nostd = opentelemetry::nostd;
// Random string of length 257. Used for testing strings with max length 256.
const char *kLongString =
"4aekid3he76zgytjavudqqeltyvu5zqio2lx7d92dlxlf0z4883irvxuwelsq27sx1mlrjg3r7ad3jeq09rjppyd9veorg"
"2nmihy4vilabfts8bsxruih0urusmjnglzl3iwpjinmo835dbojcrd73p56nw80v4xxrkye59ytmu5v84ysfa24d58ovv9"
"w1n54n0mhhf4z0mpv6oudywrp9vfoks6lrvxv3uihvbi2ihazf237kvt1nbsjn3kdvfdb";
// -------------------------- TraceState class tests ---------------------------
std::string create_ts_return_header(const std::string &header)
{
auto ts = TraceState::FromHeader(header);
return ts->ToHeader();
}
std::string header_with_max_members()
{
std::string header = "";
auto max_members = TraceState::kMaxKeyValuePairs;
for (int i = 0; i < max_members; i++)
{
std::string key = "key" + std::to_string(i);
std::string value = "value" + std::to_string(i);
header.append(key).append("=").append(value);
if (i != max_members - 1)
{
header += ",";
}
}
return header;
}
TEST(TraceStateTest, ValidateHeaderParsing)
{
auto max_trace_state_header = header_with_max_members();
struct
{
const char *input;
const char *expected;
} testcases[] = {{"k1=v1", "k1=v1"},
{"K1=V1", ""},
{"k1=v1,k2=v2,k3=v3", "k1=v1,k2=v2,k3=v3"},
{"k1=v1,k2=v2,,", "k1=v1,k2=v2"},
{"k1=v1,k2=v2,invalidmember", ""},
{"1a-2f@foo=bar1,a*/foo-_/bar=bar4", "1a-2f@foo=bar1,a*/foo-_/bar=bar4"},
{"1a-2f@foo=bar1,*/foo-_/bar=bar4", ""},
{",k1=v1", "k1=v1"},
{",", ""},
{",=,", ""},
{"", ""},
{max_trace_state_header.data(), max_trace_state_header.data()}};
for (auto &testcase : testcases)
{
EXPECT_EQ(create_ts_return_header(testcase.input), testcase.expected);
}
}
TEST(TraceStateTest, TraceStateGet)
{
std::string trace_state_header = header_with_max_members();
auto ts = TraceState::FromHeader(trace_state_header);
std::string value;
EXPECT_TRUE(ts->Get("key0", value));
EXPECT_EQ(value, "value0");
EXPECT_TRUE(ts->Get("key16", value));
EXPECT_EQ(value, "value16");
EXPECT_TRUE(ts->Get("key31", value));
EXPECT_EQ(value, "value31");
EXPECT_FALSE(ts->Get("key32", value));
}
TEST(TraceStateTest, TraceStateSet)
{
std::string trace_state_header = "k1=v1,k2=v2";
auto ts1 = TraceState::FromHeader(trace_state_header);
auto ts1_new = ts1->Set("k3", "v3");
EXPECT_EQ(ts1_new->ToHeader(), "k3=v3,k1=v1,k2=v2");
trace_state_header = header_with_max_members();
auto ts2 = TraceState::FromHeader(trace_state_header);
auto ts2_new =
ts2->Set("n_k1", "n_v1"); // adding to max list, should return copy of existing list
EXPECT_EQ(ts2_new->ToHeader(), trace_state_header);
trace_state_header = "k1=v1,k2=v2";
auto ts3 = TraceState::FromHeader(trace_state_header);
auto ts3_new = ts3->Set("*n_k1", "n_v1"); // adding invalid key, should return empty
EXPECT_EQ(ts3_new->ToHeader(), "");
}
TEST(TraceStateTest, TraceStateDelete)
{
std::string trace_state_header = "k1=v1,k2=v2,k3=v3";
auto ts1 = TraceState::FromHeader(trace_state_header);
auto ts1_new = ts1->Delete(std::string("k1"));
EXPECT_EQ(ts1_new->ToHeader(), "k2=v2,k3=v3");
trace_state_header = "k1=v1"; // single list member
auto ts2 = TraceState::FromHeader(trace_state_header);
auto ts2_new = ts2->Delete(std::string("k1"));
EXPECT_EQ(ts2_new->ToHeader(), "");
trace_state_header = "k1=v1"; // single list member, delete invalid entry
auto ts3 = TraceState::FromHeader(trace_state_header);
auto ts3_new = ts3->Delete(std::string("InvalidKey"));
EXPECT_EQ(ts3_new->ToHeader(), "");
}
TEST(TraceStateTest, Empty)
{
std::string trace_state_header = "";
auto ts = TraceState::FromHeader(trace_state_header);
EXPECT_TRUE(ts->Empty());
trace_state_header = "k1=v1,k2=v2";
auto ts1 = TraceState::FromHeader(trace_state_header);
EXPECT_FALSE(ts1->Empty());
}
TEST(TraceStateTest, GetAllEntries)
{
std::string trace_state_header = "k1=v1,k2=v2,k3=v3";
auto ts1 = TraceState::FromHeader(trace_state_header);
const int kNumPairs = 3;
nostd::string_view keys[kNumPairs] = {"k1", "k2", "k3"};
nostd::string_view values[kNumPairs] = {"v1", "v2", "v3"};
size_t index = 0;
ts1->GetAllEntries([&keys, &values, &index](nostd::string_view key, nostd::string_view value) {
EXPECT_EQ(key, keys[index]);
EXPECT_EQ(value, values[index]);
index++;
return true;
});
}
TEST(TraceStateTest, IsValidKey)
{
EXPECT_TRUE(TraceState::IsValidKey("valid-key23/*"));
EXPECT_FALSE(TraceState::IsValidKey("Invalid_key"));
EXPECT_FALSE(TraceState::IsValidKey("invalid$Key&"));
EXPECT_FALSE(TraceState::IsValidKey(""));
EXPECT_FALSE(TraceState::IsValidKey(kLongString));
}
TEST(TraceStateTest, IsValidValue)
{
EXPECT_TRUE(TraceState::IsValidValue("valid-val$%&~"));
EXPECT_FALSE(TraceState::IsValidValue("\tinvalid"));
EXPECT_FALSE(TraceState::IsValidValue("invalid="));
EXPECT_FALSE(TraceState::IsValidValue("invalid,val"));
EXPECT_FALSE(TraceState::IsValidValue(""));
EXPECT_FALSE(TraceState::IsValidValue(kLongString));
}
// Tests that keys and values don't depend on null terminators
TEST(TraceStateTest, MemorySafe)
{
std::string trace_state_header = "";
auto ts = TraceState::FromHeader(trace_state_header);
const int kNumPairs = 3;
nostd::string_view key_string = "test_key_1test_key_2test_key_3";
nostd::string_view val_string = "test_val_1test_val_2test_val_3";
nostd::string_view keys[kNumPairs] = {key_string.substr(0, 10), key_string.substr(10, 10),
key_string.substr(20, 10)};
nostd::string_view values[kNumPairs] = {val_string.substr(0, 10), val_string.substr(10, 10),
val_string.substr(20, 10)};
auto ts1 = ts->Set(keys[2], values[2]);
auto ts2 = ts1->Set(keys[1], values[1]);
auto ts3 = ts2->Set(keys[0], values[0]);
size_t index = 0;
ts3->GetAllEntries([&keys, &values, &index](nostd::string_view key, nostd::string_view value) {
EXPECT_EQ(key, keys[index]);
EXPECT_EQ(value, values[index]);
index++;
return true;
});
}
} // namespace
|
