protected function _getFixtureFiles() {
		$fixtureFolder = TESTS . 'Fixture' . DS;
		$plugin = $this->param('plugin');
		if ($plugin) {
			$fixtureFolder = Plugin::path($plugin) . 'tests' . DS . 'Fixture' . DS;
		}

		$folder = new Folder($fixtureFolder);
		$content = $folder->read();

		$fixtures = [];
		foreach ($content[1] as $file) {
			$fixture = substr($file, 0, -4);
			if (substr($fixture, -7) !== 'Fixture') {
				continue;
			}
			$fixtures[] = $fixture;
		}

		return $fixtures;
	}