public function testCompressedStream()
{
$dir = $this->createTempDir("ezcArchive_");
// $file = $dir . "/blockfile";
$file = "compress.zlib://" . $dir . "/blockfile";
// Create the file.
// Blocksize = 4.
$bf = new ezcArchiveBlockFile($file, true, 4);
$this->assertFalse($bf->valid());
// Exact 1 block.
$bf->append("abcd");
$this->assertTrue($bf->valid());
$this->assertEquals(0, $bf->key(), "Current block should be 0");
$this->assertEquals(0, $bf->getLastBlockNumber(), "Last block should be 0");
// halve block.
$bf->append("ef");
$this->assertEquals(1, $bf->key(), "Current block should be 1");
$this->assertEquals(1, $bf->getLastBlockNumber(), "Last block should be 1");
// File should contain: abcdef\0\0
$this->assertEquals("abcdef", file_get_contents($file));
$bf->rewind();
$this->assertEquals(0, $bf->key(), "Current block should be 0");
$this->assertEquals("abcd", $bf->current());
$this->assertTrue($bf->valid());
$this->assertEquals(1, $bf->getLastBlockNumber());
try {
$bf->append("ZZ");
$this->fail("Expected an exception that the block could not be appended in the middle");
} catch (ezcArchiveException $e) {
}
$bf->next();
$bf->append("ZZ");
$this->assertEquals(2, $bf->key(), "Current block should be 0");
$this->assertEquals("ZZ", $bf->current());
$this->assertTrue($bf->valid());
$this->assertEquals(2, $bf->getLastBlockNumber());
}
/**
* Returns an array with pax header information.
*
* This method reads an extended set of data from the ezcArchiveBlockFile
* $file and returns the values in an array.
*
* @param ezcArchiveBlockFile $file
* @return array(string=>string)
*/
protected function getPaxDecodedHeader(ezcArchiveBlockFile $file)
{
$result = array();
// next block has the info.
$file->next();
$data = $file->current();
$offset = 0;
while (strcmp($data[$offset], "") != 0) {
$space = strpos($data, " ", $offset);
$length = substr($data, $offset, $space - $offset);
$equalSign = strpos($data, "=", $space);
$keyword = substr($data, $space + 1, $equalSign - $space - 1);
$value = rtrim(substr($data, $equalSign + 1, $length - $equalSign - 1), "\n");
$result[$keyword] = $value;
$offset += $length;
}
return $result;
}
