January 2017
Intermediate to advanced
420 pages
9h 25m
English
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Property testing
An alternative method of testing that is popular in frameworks, such as QuickCheck in Haskell and ScalaCheck in Scala, is the idea of property testing. Property testing is aimed at testing a single property of a function at a time. For example, when concatenating two strings together, the length property should always remain consistent as the sum of the original two lengths. This is in contrast to the normal style of testing, which is example-driven.
Note
Note that a property in this case doesn't refer to the properties of objects, as in fields or members. Instead, it refers to some invariant or predicate that should be true.
Given that we are going to test that a property holds for multiple input values, it follows that we would ...
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I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.