veyepar: Let The Computer Write The Tests

Author(s):	Dan Crosta
Location	Mystic Theatre
Date	nov Sun 04	Days Raw Files
Start	Nov. 4, 2018, 5:05 p.m.	First Raw Start	Nov. 4, 2018, 4:44 p.m.
Duration	0:30:0	Offset	0:20:49
End	Nov. 4, 2018, 5:35 p.m.	Last Raw End	Nov. 4, 2018, 6:06 p.m.
Chapters	00:00 0:19:06
Total cuts_time	28 min.

https://2018.northbaypython.org/schedule/presentation/21/
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The Hypothesis library by David McIver is a property testing library for Python. Property testing is related to fuzz testing, a technique commonly applied in fields where correctness is paramount. With a little guidance from you, the programmer, Hypothesis can generate a wide variety of valid -- and invalid -- inputs to your functions, and test scenarios you might never have considered. It can generate instances of your custom objects, and isn't limited just to simple functions. On top of all of this, when Hypothesis finds a failure, it will simplify the failing case, which aids tremendously in diagnosing what is actually wrong in your code.

We'll take a look at what Hypothesis has to offer, and how you can apply it to your codebase. We'll see how to generate custom test case strategies, and how to generate instances of your own objects. Finally, we'll glance under the hood to see how Hypothesis generates test cases, and how it can automatically simplify them, to gain confidence that it's helping us find real bugs and not just flukes.

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2018-11-04/16_44_11.ts Apply: 16:44:11 - 16:52:52 ( 00:08:41 ) S: 16:44:11 - E: 17:14:11 D: 00:30:00 (End: 521.0) show more...

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	Nov. 4, 2018, 5:14 p.m.		seconds: 533.0 Wall: 16:53:04
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2018-11-04/16_44_11.ts Apply: 16:55:05 - 17:14:11 ( 00:19:06 ) S: 16:44:11 - E: 17:14:11 D: 00:30:00 (Start: 654.0) show more...

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2018-11-04/17_14_11.ts Apply: 17:14:11 - 17:23:56 ( 00:09:45 ) S: 17:14:11 - E: 17:44:10 D: 00:29:59 (End: 585.0) show more...

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2018-11-04/17_44_11.ts Apply: 17:44:11 - 17:51:26 ( 00:07:15 ) S: 17:44:11 - E: 18:06:39 D: 00:22:28 (End: 7:15) show more...

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