[MERGE][BUG 315737] Fix failing test when CompiledChunksToLines is not available.

[Aaron Bentley]

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John Arbash Meinel wrote:
> Aaron Bentley wrote:
>> The test seems odd-- If it's checking that chunks_to_lines is compiled,
>> why doesn't it just requireFeature(CompiledChunksToLinesFeature)?

> It is testing that if the compiled extension is available that it is
> used. It isn't meant to be testing that you have the feature available,
> that is done elsewhere.

Requiring a feature causes the test to be skipped if the feature is not
present.  It wouldn't cause the test to fail if the feature was unavailable.

I didn't express myself well.  I understand the bit about checking that
if it's compiled, it's used.  What I don't understand is the else
branch, which checks that if the compiled version isn't present, the
python version is used.

Aaron
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