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<?php
class Swift_Bug76Test extends \PHPUnit_Framework_TestCase
{
private $_inputFile;
private $_outputFile;
private $_encoder;
public function setUp()
{
if (!defined('SWIFT_TMP_DIR') || !is_writable(SWIFT_TMP_DIR)) {
$this->markTestSkipped(
'Cannot run test without a writable directory to use ('.
'define SWIFT_TMP_DIR in tests/config.php if you wish to run this test)'
);
}
$this->_inputFile = SWIFT_TMP_DIR.'/in.bin';
file_put_contents($this->_inputFile, '');
$this->_outputFile = SWIFT_TMP_DIR.'/out.bin';
file_put_contents($this->_outputFile, '');
$this->_encoder = $this->_createEncoder();
}
public function tearDown()
{
unlink($this->_inputFile);
unlink($this->_outputFile);
}
public function testBase64EncodedLineLengthNeverExceeds76CharactersEvenIfArgsDo()
{
$this->_fillFileWithRandomBytes(1000, $this->_inputFile);
$os = $this->_createStream($this->_inputFile);
$is = $this->_createStream($this->_outputFile);
$this->_encoder->encodeByteStream($os, $is, 0, 80); //Exceeds 76
$this->assertMaxLineLength(76, $this->_outputFile,
'%s: Line length should not exceed 76 characters'
);
}
// -- Custom Assertions
public function assertMaxLineLength($length, $filePath, $message = '%s')
{
$lines = file($filePath);
foreach ($lines as $line) {
$this->assertTrue((strlen(trim($line)) <= 76), $message);
}
}
// -- Creation Methods
private function _fillFileWithRandomBytes($byteCount, $file)
{
// I was going to use dd with if=/dev/random but this way seems more
// cross platform even if a hella expensive!!
file_put_contents($file, '');
$fp = fopen($file, 'wb');
for ($i = 0; $i < $byteCount; ++$i) {
$byteVal = rand(0, 255);
fwrite($fp, pack('i', $byteVal));
}
fclose($fp);
}
private function _createEncoder()
{
return new Swift_Mime_ContentEncoder_Base64ContentEncoder();
}
private function _createStream($file)
{
return new Swift_ByteStream_FileByteStream($file, true);
}
}