function testReadWritePipe()
{
$original_value = file_get_contents(__DIR__ . DIRECTORY_SEPARATOR . 'Mock' . DIRECTORY_SEPARATOR . 'mockfile.txt');
$file = new \qio\File(__DIR__ . DIRECTORY_SEPARATOR . 'Mock' . DIRECTORY_SEPARATOR . 'mockfile.txt');
$file2 = new \qio\File(__DIR__ . DIRECTORY_SEPARATOR . 'Mock' . DIRECTORY_SEPARATOR . 'mockfile2.txt');
$source = new \qio\File\Stream($file, \qio\Stream\Mode::Read);
$target = new \qio\File\Stream($file2, \qio\Stream\Mode::ReadWriteTruncate);
$reader = new \qio\File\Reader($source);
$writer = new \qio\File\Writer($target);
$source->open();
$target->open();
$reader->pipe($writer);
$source->close();
$target->close();
$new_value = file_get_contents(__DIR__ . DIRECTORY_SEPARATOR . 'Mock' . DIRECTORY_SEPARATOR . 'mockfile2.txt');
$this->assertEquals($original_value, $new_value);
}
/**
* Helper method to perform save sequence
* @param string $path
* @param string $target
* @throws \InvalidArgumentException
*/
protected function commit($path, $target = null)
{
if (is_array($path) && is_null($target)) {
foreach ($path as $k => $v) {
$this->commit($k, $v);
}
return;
} elseif (!is_string($path) || !is_string($target)) {
throw new \InvalidArgumentException();
}
$fileStream = new \qio\File\Stream($path);
$fileReader = new \qio\File\Reader($fileStream);
if (!$fileStream->open()) {
return;
}
$cacheData = $fileReader->readAll();
$fileStream->close();
if (!empty(trim($cacheData))) {
$fileStream = new \qio\File\Stream($target, \qio\Stream\Mode::ReadWriteTruncate);
$fileWriter = new \qio\File\Writer($fileStream);
if (!$fileStream->open()) {
return;
}
$fileWriter->write($cacheData);
$fileStream->close();
}
}
