public function testConditions() {
		$query = new Query(array(
			'type' => 'read', 'model' => $this->_model,
			'conditions' => array(
				'or' => array(
					'id' => 'value1',
					'title' => 'value2',
					'and' => array('author_id' => '1', 'created' => '2'),
					array('title' => 'value2'),
					array('title' => null)
				),
				'id' => '3',
				'author_id' => false
			)
		));
		$sql = "SELECT * FROM {mock_database_posts} AS {MockDatabasePost} WHERE ";
		$sql .= "({id} = 0 OR {title} = 'value2' OR ({author_id} = 1 AND {created} = '2')";
		$sql .= " OR ({title} = 'value2') OR (title IS NULL)) AND {id} = 3 AND author_id = 0;";
		$this->assertEqual($sql, $this->db->renderCommand($query));

		$query = new Query(array(
			'type' => 'read', 'model' => $this->_model,
			'conditions' => array('title' => array('0900'))
		));

		$sql = "SELECT * FROM {mock_database_posts} AS {MockDatabasePost} WHERE title IN ('0900');";
		$this->assertEqual($sql, $this->db->renderCommand($query));
	}