test fixture

基本解释

For every new unit test, the framework creates a new test fixture.
对于每个新的单元测试，框架创建一个新的测试装备。
The test fixture refers to state intended to be the fixed for all tests in the page.
测试夹具用以给页面中所有的测试准备状态。
It is only when you need to alter timeouts, perform setup operations, or tear down data after a test that you would need to construct a test fixture.
只有在需要更改超时值、执行设置操作或在测试后要拆除数据时，才需要构造一个测试装置。