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'''In a more visual way, the wrapping looks like this:'''

[WrappingFig1.png]Image Added

Why?

Wrapping actually enhances the performance and extensibility of FlexUnit4. Each layer of wrapping independently checks the test to see if it is needed. If the layer is not needed, then it acts as a '''noop''' (No Operation). If the layer is needed, for example, we specify async, then the logic for that layer is instantiated and enabled to ensure that the test is handled properly.

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