opentelemetry-cpp/api/test/common/kv_properties_test.cc

239 lines
6.6 KiB
C++

// Copyright The OpenTelemetry Authors
// SPDX-License-Identifier: Apache-2.0
#include <gtest/gtest.h>
#include <stddef.h>
#include <string>
#include <utility>
#include <vector>
#include <opentelemetry/common/kv_properties.h>
#include "opentelemetry/nostd/function_ref.h"
#include "opentelemetry/nostd/string_view.h"
// ------------------------- Entry class tests ---------------------------------
using namespace opentelemetry;
using opentelemetry::common::KeyValueProperties;
// Test constructor that takes a key-value pair
TEST(EntryTest, KeyValueConstruction)
{
opentelemetry::nostd::string_view key = "test_key";
opentelemetry::nostd::string_view val = "test_value";
KeyValueProperties::Entry e(key, val);
EXPECT_EQ(key.size(), e.GetKey().size());
EXPECT_EQ(key, e.GetKey());
EXPECT_EQ(val.size(), e.GetValue().size());
EXPECT_EQ(val, e.GetValue());
}
// Test copy constructor
TEST(EntryTest, Copy)
{
KeyValueProperties::Entry e("test_key", "test_value");
const KeyValueProperties::Entry &copy(e);
EXPECT_EQ(copy.GetKey(), e.GetKey());
EXPECT_EQ(copy.GetValue(), e.GetValue());
}
// Test assignment operator
TEST(EntryTest, Assignment)
{
KeyValueProperties::Entry e("test_key", "test_value");
KeyValueProperties::Entry empty;
empty = e;
EXPECT_EQ(empty.GetKey(), e.GetKey());
EXPECT_EQ(empty.GetValue(), e.GetValue());
}
TEST(EntryTest, SetValue)
{
KeyValueProperties::Entry e("test_key", "test_value");
opentelemetry::nostd::string_view new_val = "new_value";
e.SetValue(new_val);
EXPECT_EQ(new_val.size(), e.GetValue().size());
EXPECT_EQ(new_val, e.GetValue());
}
// ------------------------- KeyValueStringTokenizer tests ---------------------------------
using opentelemetry::common::KeyValueStringTokenizer;
using opentelemetry::common::KeyValueStringTokenizerOptions;
TEST(KVStringTokenizer, SinglePair)
{
bool valid_kv;
nostd::string_view key, value;
opentelemetry::nostd::string_view str = "k1=v1";
KeyValueStringTokenizerOptions opts;
KeyValueStringTokenizer tk(str, opts);
EXPECT_TRUE(tk.next(valid_kv, key, value));
EXPECT_TRUE(valid_kv);
EXPECT_EQ(key, "k1");
EXPECT_EQ(value, "v1");
EXPECT_FALSE(tk.next(valid_kv, key, value));
}
TEST(KVStringTokenizer, AcceptEmptyEntries)
{
bool valid_kv;
nostd::string_view key, value;
opentelemetry::nostd::string_view str = ":k1=v1::k2=v2: ";
KeyValueStringTokenizerOptions opts;
opts.member_separator = ':';
opts.ignore_empty_members = false;
KeyValueStringTokenizer tk(str, opts);
EXPECT_TRUE(tk.next(valid_kv, key, value)); // empty pair
EXPECT_TRUE(tk.next(valid_kv, key, value));
EXPECT_TRUE(valid_kv);
EXPECT_EQ(key, "k1");
EXPECT_EQ(value, "v1");
EXPECT_TRUE(tk.next(valid_kv, key, value)); // empty pair
EXPECT_EQ(key, "");
EXPECT_EQ(value, "");
EXPECT_TRUE(tk.next(valid_kv, key, value));
EXPECT_TRUE(tk.next(valid_kv, key, value)); // empty pair
EXPECT_FALSE(tk.next(valid_kv, key, value));
}
TEST(KVStringTokenizer, ValidPairsWithEmptyEntries)
{
opentelemetry::nostd::string_view str = "k1:v1===k2:v2==";
bool valid_kv;
nostd::string_view key, value;
KeyValueStringTokenizerOptions opts;
opts.member_separator = '=';
opts.key_value_separator = ':';
KeyValueStringTokenizer tk(str, opts);
EXPECT_TRUE(tk.next(valid_kv, key, value));
EXPECT_TRUE(valid_kv);
EXPECT_EQ(key, "k1");
EXPECT_EQ(value, "v1");
EXPECT_TRUE(tk.next(valid_kv, key, value));
EXPECT_TRUE(valid_kv);
EXPECT_EQ(key, "k2");
EXPECT_EQ(value, "v2");
EXPECT_FALSE(tk.next(valid_kv, key, value));
}
TEST(KVStringTokenizer, InvalidPairs)
{
opentelemetry::nostd::string_view str = "k1=v1,invalid ,, k2=v2 ,invalid";
KeyValueStringTokenizer tk(str);
bool valid_kv;
nostd::string_view key, value;
EXPECT_TRUE(tk.next(valid_kv, key, value));
EXPECT_TRUE(valid_kv);
EXPECT_EQ(key, "k1");
EXPECT_EQ(value, "v1");
EXPECT_TRUE(tk.next(valid_kv, key, value));
EXPECT_FALSE(valid_kv);
EXPECT_TRUE(tk.next(valid_kv, key, value));
EXPECT_TRUE(valid_kv);
EXPECT_EQ(key, "k2");
EXPECT_EQ(value, "v2");
EXPECT_TRUE(tk.next(valid_kv, key, value));
EXPECT_FALSE(valid_kv);
EXPECT_FALSE(tk.next(valid_kv, key, value));
}
TEST(KVStringTokenizer, NumTokens)
{
struct
{
const char *input;
size_t expected;
} testcases[] = {{"k1=v1", 1},
{" ", 1},
{"k1=v1,k2=v2,k3=v3", 3},
{"k1=v1,", 1},
{"k1=v1,k2=v2,invalidmember", 3},
{"", 0}};
for (auto &testcase : testcases)
{
KeyValueStringTokenizer tk(testcase.input);
EXPECT_EQ(tk.NumTokens(), testcase.expected);
}
}
//------------------------- KeyValueProperties tests ---------------------------------
TEST(KeyValueProperties, PopulateKVIterableContainer)
{
std::vector<std::pair<std::string, std::string>> kv_pairs = {{"k1", "v1"}, {"k2", "v2"}};
auto kv_properties = KeyValueProperties(kv_pairs);
EXPECT_EQ(kv_properties.Size(), 2);
std::string value;
bool present = kv_properties.GetValue("k1", value);
EXPECT_TRUE(present);
EXPECT_EQ(value, "v1");
present = kv_properties.GetValue("k2", value);
EXPECT_TRUE(present);
EXPECT_EQ(value, "v2");
}
TEST(KeyValueProperties, AddEntry)
{
auto kv_properties = KeyValueProperties(1);
kv_properties.AddEntry("k1", "v1");
std::string value;
bool present = kv_properties.GetValue("k1", value);
EXPECT_TRUE(present);
EXPECT_EQ(value, "v1");
kv_properties.AddEntry("k2", "v2"); // entry will not be added as max size reached.
EXPECT_EQ(kv_properties.Size(), 1);
present = kv_properties.GetValue("k2", value);
EXPECT_FALSE(present);
}
TEST(KeyValueProperties, GetValue)
{
auto kv_properties = KeyValueProperties(1);
kv_properties.AddEntry("k1", "v1");
std::string value;
bool present = kv_properties.GetValue("k1", value);
EXPECT_TRUE(present);
EXPECT_EQ(value, "v1");
present = kv_properties.GetValue("k3", value);
EXPECT_FALSE(present);
}
TEST(KeyValueProperties, GetAllEntries)
{
std::vector<std::pair<std::string, std::string>> kv_pairs = {
{"k1", "v1"}, {"k2", "v2"}, {"k3", "v3"}};
const size_t kNumPairs = 3;
opentelemetry::nostd::string_view keys[kNumPairs] = {"k1", "k2", "k3"};
opentelemetry::nostd::string_view values[kNumPairs] = {"v1", "v2", "v3"};
auto kv_properties = KeyValueProperties(kv_pairs);
size_t index = 0;
kv_properties.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;
});
EXPECT_EQ(index, kNumPairs);
}