Iterate over code examples in tests

Author: lpil

_data/code.yml

@@ -32,3 +32,12 @@
       </div>
     </body>
     </html>
+
+
+- title: Nope
+  text: >
+    Lorem ipsum dolor sit amet, consetetur sadipscing elitr, sed diam nonumy
+    eirmod tempor invidunt ut labore et dolore magna aliquyam erat, sed diam
+    voluptua. At vero eos et accusam et justo duo dolores et ea rebum. Stet
+    clita kasd gubergren, no sea takimata sanctus est Lorem ipsum dolor sit
+    amet.

_test/reference_test.exs

@@ -0,0 +1,22 @@
+defmodule ReferenceTest do
+  use ExUnit.Case
+
+  paths = "_data/*.yml" |> Path.wildcard
+
+  {:ok, counter} = Agent.start_link fn-> 0 end
+
+
+  for path     <- paths,
+      document = YAML.read(path),
+      section  <- document,
+      section["slime"],
+      section["output"]
+  do
+    n = Agent.get counter, fn x -> x end
+    Agent.update  counter, fn x -> x + 1 end
+
+    test "code example #{n} (in #{path})" do
+
+    end
+  end
+end