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// Copyright The OpenTelemetry Authors
// SPDX-License-Identifier: Apache-2.0
#include <gtest/gtest.h>
#include <stdint.h>
#include <string>
#include "opentelemetry/nostd/span.h"
#include "opentelemetry/trace/trace_flags.h"
namespace
{
using opentelemetry::trace::TraceFlags;
std::string Hex(const TraceFlags &flags)
{
char buf[2];
flags.ToLowerBase16(buf);
return std::string(buf, sizeof(buf));
}
TEST(TraceFlagsTest, DefaultConstruction)
{
TraceFlags flags;
EXPECT_FALSE(flags.IsSampled());
EXPECT_EQ(0, flags.flags());
EXPECT_EQ("00", Hex(flags));
}
TEST(TraceFlagsTest, Sampled)
{
TraceFlags flags{TraceFlags::kIsSampled};
EXPECT_TRUE(flags.IsSampled());
EXPECT_EQ(1, flags.flags());
EXPECT_EQ("01", Hex(flags));
uint8_t buf[1];
flags.CopyBytesTo(buf);
EXPECT_EQ(1, buf[0]);
}
} // namespace
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