Add example for List.wrap(nil)

This better covers the cases of List.wrap
2016-06-13 09:29:36 -05:00
parent f95086b14d
commit c20436d0c6
2 changed files with 5 additions and 0 deletions
--- a/lib/koans/07_lists.ex
+++ b/lib/koans/07_lists.ex
@@ -63,6 +63,10 @@ defmodule Lists do
    assert List.wrap("value") == ___
  end

+  koan "Wrapping nothing produces a list of nothing" do
+    assert List.wrap(nil) == ___
+  end
+
  koan "When there is already a list do not wrap it again" do
    assert List.wrap(["value"]) == ___
  end