[py-dev] the seeming need of task-based build-tool properties in py.test

[Adam]

Ronny Pfannschmidt wrote:

> as needs like dependend tests, [...]
> it seems like we are going tinto the direction of a task-based build
> tool where each test item is a 'task' that may depend on other tasks and
> has possible checked preconditions for being executed.

A test dependency is IMO very different to a build dependency. With a
build dependency the task can't be run until it's dependency have
produced their product. If they are run in a wrong order, it produces a
broken build.

OTOH the test dependencies are only relevant for interpreting why a test
failed. If (at least) one dependency failed, I don't care if the test
passt or not. In which order the two were run is irrelevant. Sure, if I
ran the dependency first, I can save time, but as (with the exception of
looponfailing) '#failed test << #tests' it shouldn't make much of a
difference).

--Adam
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