One way to understand the usage of a Julia package is to read the test suite… Looking at StatsBase.coef(…) I wondered how/when I should expect to see that error message. The test suite is silent . What is the correct way to test that error message is observed? Aside: This arose in the course of …

I’d write something like let err = nothing try error("bla") catch err end @test err isa Exception @test sprint(showerror, err) == "bla" end so that it fails when the code inside try block does not throw. (Also I think we can use sprint here)

How to test a default `error(...)` raising method's message

New to Julia

tkf January 5, 2019, 11:11pm 8

It would be nice if we can write, e.g.,

err = @test_throws SomeExceptionType f()
@test occursin("some error message", sprint(showerror, err))

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How to test a default `error(...)` raising method's message

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