diff options
Diffstat (limited to 'src/jaegertracing/opentelemetry-cpp/sdk/test/common/fast_random_number_generator_test.cc')
-rw-r--r-- | src/jaegertracing/opentelemetry-cpp/sdk/test/common/fast_random_number_generator_test.cc | 22 |
1 files changed, 22 insertions, 0 deletions
diff --git a/src/jaegertracing/opentelemetry-cpp/sdk/test/common/fast_random_number_generator_test.cc b/src/jaegertracing/opentelemetry-cpp/sdk/test/common/fast_random_number_generator_test.cc new file mode 100644 index 000000000..e9209fdb6 --- /dev/null +++ b/src/jaegertracing/opentelemetry-cpp/sdk/test/common/fast_random_number_generator_test.cc @@ -0,0 +1,22 @@ +// Copyright The OpenTelemetry Authors +// SPDX-License-Identifier: Apache-2.0 + +#include "src/common/random.h" + +#include <random> + +#include <gtest/gtest.h> + +using opentelemetry::sdk::common::FastRandomNumberGenerator; + +TEST(FastRandomNumberGeneratorTest, GenerateUniqueNumbers) +{ + std::seed_seq seed_sequence{1, 2, 3}; + FastRandomNumberGenerator random_number_generator; + random_number_generator.seed(seed_sequence); + std::set<uint64_t> values; + for (int i = 0; i < 1000; ++i) + { + EXPECT_TRUE(values.insert(random_number_generator()).second); + } +} |