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add testing helpers #88

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aplavin opened this issue Jul 16, 2024 · 0 comments

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aplavin commented Jul 16, 2024

Some helpers to test constructof laws would be nice, similar to what we have in Accessors (https://github.com/JuliaObjects/Accessors.jl/blob/master/ext/AccessorsTestExt.jl).
Basically,

function test_constructorof_laws(obj, args; cmp=(==))
    ctor = constructorof(typeof(obj))
    reconstructed = ctor(getfields(obj)...)
    @test cmp(obj, reconstructed)
    @test typeof(obj) == typeof(reconstructed)
    @test getfields(ctor(args...)) == args
end

Best to put into a Test extension, so this should wait until #86 -related issues get resolved.

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