Re:Rise and fall of JVM languages
by dvlsg on Monday August 21, 2017 @12:26PM
(#15065680)
What do you miss that's not in F#? Legitimately curious, since F# is the language I miss (or wish to use, I suppose) the most at the moment.
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Re:Rise and fall of JVM languages
by tigershark on Monday August 21, 2017 @11:56PM
(#15069574)
It's the overall experience that is great.
Creating a stub or a mock with just:
IMyService myService = Stub() // Mock()
Returning something from the stub:
myService.getData() >> data
verifying the returned value without explicit assert:
result == expected (This will show a very informative error in case of mismatch and gives you the ability to see the differences in a diff style window)
Interaction based testing is a breeze with this:
3 * myService.getData()
1 * myOtherService.getData()
And finally the data driven testing is the most natural that I have ever seen. You just need to literally create a table and use the column name in your test or even in your test title. Writing tests becomes a joy with Spock.
In F# I have looked at expecto, fsunit and some other library, but I can't find anything remotely equivalent.