From a93f3421a704d6728a856d5d82cdbf9c43f3f897 Mon Sep 17 00:00:00 2001
From: Roger Braun <roger@rogerbraun.net>
Date: Fri, 17 Mar 2017 17:09:58 +0100
Subject: Phoenix skeleton

---
 test/support/data_case.ex | 53 +++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 53 insertions(+)
 create mode 100644 test/support/data_case.ex

(limited to 'test/support/data_case.ex')

diff --git a/test/support/data_case.ex b/test/support/data_case.ex
new file mode 100644
index 000000000..3f40c3670
--- /dev/null
+++ b/test/support/data_case.ex
@@ -0,0 +1,53 @@
+defmodule Pleroma.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
+
+  using do
+    quote do
+      alias Pleroma.Repo
+
+      import Ecto
+      import Ecto.Changeset
+      import Ecto.Query
+      import Pleroma.DataCase
+    end
+  end
+
+  setup tags do
+    :ok = Ecto.Adapters.SQL.Sandbox.checkout(Pleroma.Repo)
+
+    unless tags[:async] do
+      Ecto.Adapters.SQL.Sandbox.mode(Pleroma.Repo, {:shared, self()})
+    end
+
+    :ok
+  end
+
+  @doc """
+  A helper that transform changeset errors to a map of messages.
+
+      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
+    Ecto.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
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