Test that all named exports are detected by Node

Author: GeoffreyBooth

test/package.coffee

@@ -0,0 +1,23 @@
+return if window? or testingBrowser?
+
+{EventEmitter} = require 'events'
+{join}         = require 'path'
+{cwd}          = require 'process'
+
+
+test "the coffeescript package exposes all members as named exports in Node", ->
+  packageEntry = join cwd(), 'lib/coffeescript/index.js'
+
+  requiredPackage = require packageEntry
+  requiredKeys = Object.keys requiredPackage
+
+  importedPackage = await import(packageEntry)
+  importedKeys = new Set Object.keys(importedPackage)
+
+  # In `command.coffee`, CoffeeScript extends a `new EventEmitter`;
+  # we want to ignore these additional added keys.
+  eventEmitterKeys = new Set Object.getOwnPropertyNames(Object.getPrototypeOf(new EventEmitter))
+
+  for key in requiredKeys when not eventEmitterKeys.has(key)
+    # Use `eq` test so that missing keys have their names printed in the error message.
+    eq (if importedKeys.has(key) then key else undefined), key