Add start of controller testing

test/support/factory.ex

@@ -0,0 +1,24 @@
+defmodule MatrixServer.Factory do
+  use ExMachina.Ecto, repo: MatrixServer.Repo
+
+  alias MatrixServer.{Account, Device}
+
+  def account_factory do
+    %Account{
+      localpart: sequence(:localpart, &"account#{&1}"),
+      password_hash: Bcrypt.hash_pwd_salt("lemmein")
+    }
+  end
+
+  def device_factory do
+    %Account{localpart: localpart} = account = build(:account)
+    device_id = sequence(:device_id, &"device#{&1}")
+
+    %Device{
+      device_id: device_id,
+      access_token: Device.generate_access_token(localpart, device_id),
+      display_name: sequence(:display_name, &"Device #{&1}"),
+      account: account
+    }
+  end
+end