JSPWiki: HowDoYouWriteUnitTestsFor

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- This one is quite straightforward, once you realise that (what with the ongoing triumph of raster graphics over vector) graphical output is numeric output.

+ This one is quite straightforward, once you realise that (what with the ongoing triumph of raster graphics over vector) complicated graphical output is trivial numeric output.

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- |''z''| <=2, so that's two test cases right there. And so on.

+ magnitude(''z'') <=2, so that's two test cases right there. And so on.

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+ Mock the execution environment. If you even need to do that: most main methods are (or should be) nugatory.

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