/**
* Writes the source file in such a way that race conditions are avoided when the same file is written
* multiple times in a short time period
*
* @param string $source
* @param string $location
*
* @throws FileNotWritableException
*/
private function writeFile($source, $location)
{
$tmpFileName = $location . '.' . uniqid('', true);
if (!file_put_contents($tmpFileName, $source)) {
throw FileNotWritableException::fromNonWritableLocation($tmpFileName);
}
if (!rename($tmpFileName, $location)) {
unlink($tmpFileName);
throw FileNotWritableException::fromInvalidMoveOperation($tmpFileName, $location);
}
}
public function testFromInvalidMoveOperation()
{
$exception = FileNotWritableException::fromInvalidMoveOperation('/tmp/a', '/tmp/b');
$this->assertInstanceOf('ProxyManager\\Exception\\FileNotWritableException', $exception);
$this->assertSame('Could not move file "/tmp/a" to location "/tmp/b": either the source file is not readable,' . ' or the destination is not writable', $exception->getMessage());
}