ddnet/src/test/aio.cpp

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#include "test.h"
#include <gtest/gtest.h>
#include <base/system.h>
static const int BUF_SIZE = 64 * 1024;
class Async : public ::testing::Test
{
protected:
ASYNCIO *m_pAio;
CTestInfo m_Info;
bool Delete;
void SetUp() override
{
IOHANDLE File = io_open(m_Info.m_aFilename, IOFLAG_WRITE);
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ASSERT_TRUE(File);
m_pAio = aio_new(File);
Delete = false;
}
~Async()
{
if(Delete)
{
fs_remove(m_Info.m_aFilename);
}
}
void Write(const char *pText)
{
aio_write(m_pAio, pText, str_length(pText));
}
void Expect(const char *pOutput)
{
aio_close(m_pAio);
aio_wait(m_pAio);
aio_free(m_pAio);
char aBuf[BUF_SIZE];
IOHANDLE File = io_open(m_Info.m_aFilename, IOFLAG_READ);
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ASSERT_TRUE(File);
int Read = io_read(File, aBuf, sizeof(aBuf));
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io_close(File);
ASSERT_EQ(str_length(pOutput), Read);
ASSERT_TRUE(mem_comp(aBuf, pOutput, Read) == 0);
Delete = true;
}
};
TEST_F(Async, Empty)
{
Expect("");
}
TEST_F(Async, Simple)
{
static const char TEXT[] = "a\n";
Write(TEXT);
Expect(TEXT);
}
TEST_F(Async, Long)
{
char aText[BUF_SIZE + 1];
for(unsigned i = 0; i < sizeof(aText) - 1; i++)
{
aText[i] = 'a';
}
aText[sizeof(aText) - 1] = 0;
Write(aText);
Expect(aText);
}
TEST_F(Async, Pieces)
{
char aText[BUF_SIZE + 1];
for(unsigned i = 0; i < sizeof(aText) - 1; i++)
{
aText[i] = 'a';
}
aText[sizeof(aText) - 1] = 0;
for(unsigned i = 0; i < sizeof(aText) - 1; i++)
{
Write("a");
}
Expect(aText);
}
TEST_F(Async, Mixed)
{
char aText[BUF_SIZE + 1];
for(unsigned i = 0; i < sizeof(aText) - 1; i++)
{
aText[i] = 'a' + i % 26;
}
aText[sizeof(aText) - 1] = 0;
for(unsigned i = 0; i < sizeof(aText) - 1; i++)
{
char w = 'a' + i % 26;
aio_write(m_pAio, &w, 1);
}
Expect(aText);
}
TEST_F(Async, NonDivisor)
{
static const int NUM_LETTERS = 13;
static const int SIZE = BUF_SIZE / NUM_LETTERS * NUM_LETTERS;
char aText[SIZE + 1];
for(unsigned i = 0; i < sizeof(aText) - 1; i++)
{
aText[i] = 'a' + i % NUM_LETTERS;
}
aText[sizeof(aText) - 1] = 0;
for(unsigned i = 0; i < (sizeof(aText) - 1) / NUM_LETTERS; i++)
{
Write("abcdefghijklm");
}
Expect(aText);
}
TEST_F(Async, Transaction)
{
static const int NUM_LETTERS = 13;
static const int SIZE = BUF_SIZE / NUM_LETTERS * NUM_LETTERS;
char aText[SIZE + 1];
for(unsigned i = 0; i < sizeof(aText) - 1; i++)
{
aText[i] = 'a' + i % NUM_LETTERS;
}
aText[sizeof(aText) - 1] = 0;
for(unsigned i = 0; i < (sizeof(aText) - 1) / NUM_LETTERS; i++)
{
aio_lock(m_pAio);
for(char c = 'a'; c < 'a' + NUM_LETTERS; c++)
{
aio_write_unlocked(m_pAio, &c, 1);
}
aio_unlock(m_pAio);
}
Expect(aText);
}