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// Copyright The OpenTelemetry Authors
// SPDX-License-Identifier: Apache-2.0
#include <gtest/gtest.h>
#include <stddef.h>
#include <ostream>
#include <vector>
#include "opentelemetry/nostd/string_view.h"
#include "opentelemetry/trace/propagation/detail/string.h"
using namespace opentelemetry;
namespace
{
struct SplitStringTestData
{
opentelemetry::nostd::string_view input;
char separator;
size_t max_count;
size_t expected_number_strings;
// When googletest registers parameterized tests, it uses this method to format the parameters.
// The default implementation prints hex dump of all bytes in the object. If there is any padding
// in these bytes, valgrind reports this as a warning - "Use of uninitialized bytes".
// See https://github.com/google/googletest/issues/3805.
friend void PrintTo(const SplitStringTestData &data, std::ostream *os)
{
*os << "(" << data.input << "," << data.separator << "," << data.max_count << ","
<< data.expected_number_strings << ")";
}
};
const SplitStringTestData split_string_test_cases[] = {
{"foo,bar,baz", ',', 4, 3},
{"foo,bar,baz,foobar", ',', 4, 4},
{"foo,bar,baz,foobar", '.', 4, 1},
{"foo,bar,baz,", ',', 4, 4},
{"foo,bar,baz,", ',', 2, 2},
{"foo ,bar, baz ", ',', 4, 3},
{"foo ,bar, baz ", ',', 4, 3},
{"00-0af7651916cd43dd8448eb211c80319c-00f067aa0ba902b7-01", '-', 4, 4},
};
} // namespace
// Test fixture
class SplitStringTestFixture : public ::testing::TestWithParam<SplitStringTestData>
{};
TEST_P(SplitStringTestFixture, SplitsAsExpected)
{
const SplitStringTestData test_param = GetParam();
std::vector<opentelemetry::nostd::string_view> fields(test_param.expected_number_strings);
size_t got_splits_num = opentelemetry::trace::propagation::detail::SplitString(
test_param.input, test_param.separator, fields.data(), test_param.max_count);
// Assert on the output
EXPECT_EQ(got_splits_num, test_param.expected_number_strings);
}
INSTANTIATE_TEST_SUITE_P(SplitStringTestCases,
SplitStringTestFixture,
::testing::ValuesIn(split_string_test_cases));
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