Compare exported names with Compat.jl

[tkf]

as in JuliaData/DataFrames.jl#2067 / https://github.com/JuliaData/DataFrames.jl/blob/adc634adf4d2d41ca041486348fbc27de7d0ad31/test/compat.jl

[fingolfin]

After a quick look at the provided links, I am not sure what you have in mind here?

Without knowing what this is about, we can't resolve this issue...

[lgoettgens]

I think this is a proposal to add a new test category to Aqua.

The Compat.jl package tries to bring features of newer julia versions to older ones by providing it in that package (instead of Base). If some package uses Compat.jl, the referenced issue recommends to import functions from Compat and adding new dispatches to them instead of defining new functions (and thus shadowing the ones from Compat).

[fingolfin]

But what would the test do? Check whether the module being tested exports (or just defines?) any symbols :foo that is also exported by Compat, and if so, check whether Compat.foo === MyPackage.foo?

[lgoettgens]

But what would the test do? Check whether the module being tested exports (or just defines?) any symbols :foo that is also exported by Compat, and if so, check whether Compat.foo === MyPackage.foo?

That is exactly what https://github.com/JuliaData/DataFrames.jl/blob/adc634adf4d2d41ca041486348fbc27de7d0ad31/test/compat.jl does.