OmanF
I have the following code:
def my_func() do
IO.puts("Hello, Elixir!")
:init_state
end
In my tests, I want to assert the string being output by the IO.puts.
I know about capture_io, but since the string is not the return value of the function, trying assert capture_io(&my_func/0) == "Hello, Elixir!") fails (since I’m using the excellent PowerAssert library I can also tell it fails because the assertion value is the empty string "").
For the purpose of this question, I must not separate the two actions into two separate functions and I must return the atom.
Is there a way to assert the output while still returning the atom?
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NobbZ
Works for me:
Remember though, that
IO.puts/1adds a newline, soassert capture_io(&my_func/0) == "Hello, Elixir!\n"should work for you.