So, why don't you add this functionality in the setup/teardown routines?
Know well the post criterion， all alone teardown assemble B C series engine.
The next steps in a teardown are identifying the parts and calculating the costs of materials and assembly.
The “teardown” graphic below, based on data from iSuppli, a market-research firm, shows who makes what inside the iPhone, and how much the various bits cost.
And while a teardown doesn't account for the costs of design, software, manufacturing, or shipping, these cost estimates help fill in the blanks toward estimating the profit on each device sold.
For nose, therefore, a test lives inside of not one but a series of concentric containers, any of which can contain setup code that gets run before the test and teardown code that gets run afterward.
因此，對於多層“同心”容器內的測試，nose會在運行測試之前運行所有容器中的setup代碼，在運行測試之後運行所有容器中的teardown代碼。
