opentelemetry-erlang-contrib/instrumentation/opentelemetry_httpoison/test/configuration_test.exs

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defmodule ConfigurationTest do
alias OpentelemetryHTTPoison.Configuration
use OpentelemetryHTTPoison.Case
test "it does not crash on `get` if it has not been setup" do
assert Configuration.get(:infer_route)
assert Configuration.get(:ot_attributes)
end
test "if :ot_attributes are not a list it raises an error" do
assert_raise ArgumentError, fn -> Configuration.setup(ot_attributes: {:key, :value}) end
end
test "if :ot_attributes are a list it sets up successfully" do
assert Configuration.setup(ot_attributes: [{:key, :value}]) == nil
end
test "if :infer_route is not a function it raises an error" do
assert_raise ArgumentError, fn -> Configuration.setup(infer_route: :not_a_function) end
end
test "if :infer_route is a function of arity other than 1 it raises an error" do
assert_raise ArgumentError, fn ->
Configuration.setup(infer_route: fn x, y, z -> {x, y, z} end)
end
end
test "if :infer_route is a function of arity 1 it sets up successfully" do
assert Configuration.setup(infer_route: fn x -> x end) == nil
end
end