Re: More tests/testing using Python?

Great idea!! :)
On 15 Jul 2014 20:04, "Thomas Shinnick" <[email protected]> wrote:

> I hate things sneaking up on me.  I love tests that say I haven't again
> broken things broken before.  So I've been thinking...
>
> If I started a simple-minded test in Python scripting that checked whether
> "remove overlap" seems to work, could y'all point out the test fonts and
> particular characters illustrating (old) bugs.
>
> I'm thinking that something as simple as "how many splines are there
> _now_?" could be a helpful test.
>
> For example, one of my glyphs with overlapping strokes, sampling data
> using a Python script tells me the glyph starts out with 6 splines and
> they're all closed (b/c individually expanded strokes)
>
>   #contours:         6
>   boundBox:          (-13.6533203125, 486.3466796875, 313.6533203125,
> 813.6533203125)
>   isEmpty():         0
>   is_quadratic:      0
>   selfIntersects():  True
>     closed:          1
>     closed:          1
>     closed:          1
>     closed:          1
>     closed:          1
>     closed:          1
>
> After applying "remove overlaps" I get the expected number of splines, now
> only 4 due to overlap removal (yay!) but... some of them aren't closed
> splines (boo!).
>
>   #contours:         4
>   boundBox:          (-12.5, 487.5, 312.5, 812.5)
>   isEmpty():         0
>   is_quadratic:      0
>   selfIntersects():  True
>     closed:          0
>     closed:          1
>     closed:          0
>     closed:          1
>
> Just a simple programmed test: how many to begin with, how many after
> applying operation, are they all closed, ... and one could include an
> indication of what the points ought to be (thus how the spline ought to
> 'look')
>
> Hey, in this particular erroring case, the boundingBox for at least one
> resulting 'bad' spline would be way wrong - much too broad from top to
> bottom - again an easy check.
>
>  It'd at least be a good "smoke test", yes?
>
>
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