PhabricatorTestStorageEngine.php
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	<?php

	/**
	* Test storage engine. Does not actually store files. Used for unit tests.
	*/
	final class PhabricatorTestStorageEngine
	extends PhabricatorFileStorageEngine {

	private static $storage = array();
	private static $nextHandle = 1;

	public function getEngineIdentifier() {
	return 'unit-test';
	}

	public function getEnginePriority() {
	return 1000;
	}

	public function isTestEngine() {
	return true;
	}

	public function canWriteFiles() {
	return true;
	}

	public function hasFilesizeLimit() {
	return false;
	}

	public function writeFile($data, array $params) {
	AphrontWriteGuard::willWrite();
	self::$storage[self::$nextHandle] = $data;
	return (string)self::$nextHandle++;
	}

	public function readFile($handle) {
	if (isset(self::$storage[$handle])) {
	return self::$storage[$handle];
	}
	throw new Exception(pht("No such file with handle '%s'!", $handle));
	}

	public function deleteFile($handle) {
	AphrontWriteGuard::willWrite();
	unset(self::$storage[$handle]);
	}

	}