DiamondKata | skeleton solution and test cases | 3D Printing library
kandi X-RAY | DiamondKata Summary
kandi X-RAY | DiamondKata Summary
(this description is copied from Given a letter print a diamond starting with A with the supplied letter at the widest point. For example: print-diamond E prints. A B B C C D D E E D D C C B B A For example: print-diamond C prints. A B B C C B B A .
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QUESTION
I am trying to solve the diamond kata in order to learn how to write property based tests with the fscheck library. I want to write the tests with C# and I am using Visual Studio 2017.
I want to write a property based test that does not generate any random chars as input, but letters only. I'm not sure how to write the generator fscheck requires to do this and in which file to put the code?
I searched everywhere and read documentation, but am having trouble (partly because I cannot translate F# into C# very well).
How is [Property]
used to constrain the input data to only letters?
If there is a better approach please let me know.
[Edit:]
I edited my code examples, which now contain one working solution by Kurt Schelfthout .
Tests
...ANSWER
Answered 2017-Oct-21 at 11:26You can't put constraints in attributes, the types that you can pass to an attribute are just to limited to do that.
You have a few options. You can define a custom Arbitrary
instance for char
, i.e. an implementation of Arbitrary
and configure the property to use that.
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Install DiamondKata
PHP requires the Visual C runtime (CRT). The Microsoft Visual C++ Redistributable for Visual Studio 2019 is suitable for all these PHP versions, see visualstudio.microsoft.com. You MUST download the x86 CRT for PHP x86 builds and the x64 CRT for PHP x64 builds. The CRT installer supports the /quiet and /norestart command-line switches, so you can also script it.
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