public function testInstall() {
		$this->skipIf(!extension_loaded('zlib'), 'The zlib extension is not loaded.');
		$this->skipIf(
			ini_get('phar.readonly') == '1',
			'Relies on ' . __CLASS__ . '::testPush()'
		);
		$this->library->path = $this->_testPath;
		$result = $this->library->install('library_test_plugin');
		$this->assertTrue($result);

		$result = file_exists($this->_testPath . '/library_test_plugin.phar.gz');
		$this->assertTrue($result);

		$result = is_dir($this->_testPath . '/library_test_plugin');
		$this->assertTrue($result);

		Phar::unlinkArchive($this->_testPath . '/library_test_plugin.phar');
		Phar::unlinkArchive($this->_testPath . '/library_test_plugin.phar.gz');
		$this->_cleanUp();
	}