locopati
Parameterizing an entire test case?
I have a test case with a setup and multiple tests. I want to run the exact same tests a couple times, changing a variable each time. In Rspec, this is trivial with let and shared_examples. ExUnit.Parameterized looks like it applies to individual test cases but not to the entire set of tests. What’s the right way to accomplish this in ExUnit?
I’m fairly new to Elixir for what that’s worth.
Most Liked
NobbZ
The way I usually do this is like this:
%{1 => 2, 2 => 3}
|> Enum.each(fn {input, exp} ->
test "#{input} increased by one is #{exp}" do
assert unquote(exp) = 1 + unquote(input)
end
end)
For some more complex input values, you might need to unquote(Macro.escape(…)), but you’ll figure this one out as soon as ecto barfs at you because its unable to unquote something.
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