I have a test file that tests some of the emails we send in our app. We had the following use lines:
use MyApp.DataCase, async: true
use Bamboo.Test
We then decided to introduce a credo rule where we order our uses and imports alphabetically. The test was working fine, but if we change the use order we get this error:
== Compilation error in file lib/my_app/event_test.exs ==
** (CompileError) lib/my_app/event_test.exs:2: undefined function setup/2 (there is no such import)
(bamboo 2.2.0) expanding macro: Bamboo.Test.__using__/1
lib/my_app/event_test.exs:2: MyApp.EventTest (module)
(elixir 1.14.0) expanding macro: Kernel.use/1
lib/my_app/event_test.exs:2: MyApp.EventTest (module)
I imagine that the problem might be something that I’m defining on my DataCase module so here are the contents of the file:
defmodule MyApp.DataCase do
use ExUnit.CaseTemplate
alias Ecto.Adapters.SQL.Sandbox
alias Ecto.Changeset
alias Ecto.Query
alias MyApp.DataCase
alias MyApp.Repo
alias MyApp.Tracer
require MyApp.Tracer
using do
quote do
use MyApp.Tracer.TestTracingDecorator
alias MyApp.Repo
import Changeset
import DataCase
import Ecto
import Hammox
import Query
@moduletag test_case_type: :datacase_test_case
@decorate_all trace_test(service: :my_app, tags: [test_suite: __MODULE__, test_type: :data_case])
setup :verify_on_exit!
end
end
setup context do
Tracer.strict_span "sandbox_checkout" do
:ok = Sandbox.checkout(Repo)
unless context[:async] do
Sandbox.mode(Repo, {:shared, self()})
end
end
# default stubs go here
Tracer.strict_span "stubbing" do
# stub datetime so we don't have to mock it everywhere
Hammox.stub_with(DateTimeMock, MyApp.Utils.DateTime)
# stub async so we don't have to mock it everywhere
Hammox.stub(AsyncMock, :cast, fn _function, _opts -> :ok end)
# this allows us to dynamically stub BankAccountStorageMock
# by tagging the test with @moduledoc :mock_bank_account_storage
unless context[:mock_bank_account_storage] do
# stub BankAccountStorageMock so we don't have to mock it everywhere
# this mock is only used for cache testing/verification
Hammox.stub_with(BankAccountStorageMock, MyApp.BankAccount.Storage)
end
unless context[:mock_earn_storage] do
Hammox.stub_with(EarnStorageMock, MyApp.Earn.Storage)
end
unless context[:mock_user_storage] do
Hammox.stub_with(UserStorageMock, MyApp.User.Storage)
end
end
:ok
end
@doc """
A helper that transforms changeset errors into a map of messages.
assert {:error, changeset} = Accounts.create_user(%{password: "short"})
assert "password is too short" in errors_on(changeset).password
assert %{password: ["password is too short"]} = errors_on(changeset)
"""
def errors_on(changeset) do
Changeset.traverse_errors(changeset, fn {message, opts} ->
Regex.replace(~r"%{(\w+)}", message, fn _error_msg, key ->
opts |> Keyword.get(String.to_existing_atom(key), key) |> to_string()
end)
end)
end
end