void BlockFileInputStreamTestCase::testSeekAndRead()
{
OutputStreamPtr pOutput = m_pBlockFileSystem->createFile("testfile1");
size_t dataSize = 10000;
stringstream content;
for (size_t i = 0; i < dataSize; ++i)
{
content << (i % 10);
}
pOutput->write((const void*)content.str().c_str(), content.str().size());
pOutput.reset();
InputStreamPtr pInput = m_pBlockFileSystem->openFile("testfile1");
CPPUNIT_ASSERT(pInput != NULL);
CPPUNIT_ASSERT_EQUAL(dataSize, (size_t)pInput->getSize());
for (size_t i = 0; i < dataSize - 1; ++i)
{
string readCont;
readCont.resize(dataSize - i);
if (i % 147 == 0)
{
pInput->seek(i % 789);
}
pInput->seekAndRead(i, (void*)readCont.c_str(), dataSize - i);
string expStr = content.str().substr(i);
// assert(expStr == readCont);
CPPUNIT_ASSERT_EQUAL(expStr, readCont);
}
pInput.reset();
}
void BlockFileInputStreamTestCase::testSeekInBuffer()
{
OutputStreamPtr pOutput = m_pBlockFileSystem->createFile("testfile1");
size_t dataSize = 10000;
stringstream content;
for (size_t i = 0; i < dataSize; ++i)
{
content << (i % 10);
}
pOutput->write((const void*)content.str().c_str(), content.str().size());
pOutput.reset();
InputStreamPtr pInput = m_pBlockFileSystem->openFile("testfile1");
CPPUNIT_ASSERT(pInput != NULL);
CPPUNIT_ASSERT_EQUAL(dataSize, (size_t)pInput->getSize());
off_t off = 100;
string readCont;
readCont.resize((size_t)off);
pInput->read((void*)readCont.c_str(), (size_t)off);
pInput->seek(off);
size_t readSize = 1000;
readCont.resize(readSize);
pInput->read((void*)readCont.c_str(), readSize);
string expStr = content.str().substr((size_t)off, readSize);
CPPUNIT_ASSERT_EQUAL(expStr, readCont);
pInput.reset();
}
