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|
defmodule MatrixAppService.DataCase do
@moduledoc """
This module defines the setup for tests requiring
access to the application's data layer.
You may define functions here to be used as helpers in
your tests.
Finally, if the test case interacts with the database,
it cannot be async. For this reason, every test runs
inside a transaction which is reset at the beginning
of the test unless the test case is marked as async.
"""
use ExUnit.CaseTemplate
alias Ecto.Adapters.SQL.Sandbox
alias Ecto.Changeset
alias MatrixAppService.Repo
using do
quote do
alias MatrixAppService.Repo
import Ecto
import Ecto.Changeset
import Ecto.Query
import MatrixAppService.DataCase
end
end
setup tags do
:ok = Sandbox.checkout(Repo)
unless tags[:async] do
Sandbox.mode(Repo, {:shared, self()})
end
:ok
end
@doc """
A helper that transform changeset errors to 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} ->
Enum.reduce(opts, message, fn {key, value}, acc ->
String.replace(acc, "%{#{key}}", to_string(value))
end)
end)
end
end
|
