Each routine represents a separate "thread of execution" and is referred to as a task.
每一个程序表现得像分开的“执行的线程”并且被看作是一个任务。
2
As you can see from this output, the setup and teardown routine messages appear once each per unit test execution.
正如在输出中看到的，每次执行单元测试都会显示设置和清除例程消息。
3
To stop the execution at the desired location, set a breakpoint at free_list() routine, so that nodes don't get free before you could have a look at their contents.