Add test for .coffee.md loading

Cakefile

@@ -224,7 +224,7 @@ runTests = (CoffeeScript) ->
 
   # Run every test in the `test` folder, recording failures.
   files = fs.readdirSync 'test'
-  for file in files when file.match /\.(lit)?coffee$/i
+  for file in files when file.match(/\.(lit)?coffee$/i) or file.match(/\.coffee\.md$/i)
     literate = helpers.isLiterate file
     currentFile = filename = path.join 'test', file
     code = fs.readFileSync filename

test/importing.coffee.md

@@ -0,0 +1,18 @@
+Importing
+---------
+
+    unless window? or testingBrowser?
+      test "literate coffeescript modules can be imported and executed", ->
+
+        magicKey = __filename
+        magicValue = 0xFFFF
+
+        if global[magicKey]?
+          if exports?
+            local = magicValue
+            exports.method = -> local
+        else
+          global[magicKey] = {}
+          if require?.extensions?
+            ok require(__filename).method() is magicValue
+          delete global[magicKey]