Now we have some elixir

test/bunny_mask_test.exs

@@ -0,0 +1,8 @@
+defmodule BunnyMaskTest do
+  use ExUnit.Case
+  doctest BunnyMask
+
+  test "greets the world" do
+    assert BunnyMask.hello() == :world
+  end
+end

test/test_helper.exs

@@ -0,0 +1 @@
+ExUnit.start()