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#include <string>
#include <seastar/core/temporary_buffer.hh>
#include <gtest/gtest.h>
#include "include/denc.h"
#include "common/buffer_seastar.h"
using temporary_buffer = seastar::temporary_buffer<char>;
using buffer_iterator = seastar_buffer_iterator;
using const_buffer_iterator = const_seastar_buffer_iterator;
template<typename T>
void test_denc(T v) {
// estimate
size_t s = 0;
denc(v, s);
ASSERT_NE(s, 0u);
// encode
temporary_buffer buf{s};
buffer_iterator enc{buf};
denc(v, enc);
size_t len = enc.get() - buf.begin();
ASSERT_LE(len, s);
// decode
T out;
temporary_buffer encoded = buf.share();
encoded.trim(len);
const_buffer_iterator dec{encoded};
denc(out, dec);
ASSERT_EQ(v, out);
ASSERT_EQ(dec.get(), enc.get());
}
TEST(denc, simple)
{
test_denc((uint8_t)4);
test_denc((int8_t)-5);
test_denc((uint16_t)6);
test_denc((int16_t)-7);
test_denc((uint32_t)8);
test_denc((int32_t)-9);
test_denc((uint64_t)10);
test_denc((int64_t)-11);
}
TEST(denc, string)
{
std::string a, b("hi"), c("multi\nline\n");
test_denc(a);
test_denc(b);
test_denc(c);
}
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