Add test for the unzip module.

spec/modules/unzip.coffee

@@ -0,0 +1,13 @@
+assert = require 'assert'
+fs = require 'fs'
+path = require 'path'
+unzip = require 'unzip'
+
+fixtures = path.resolve __dirname, '..', 'fixtures'
+
+describe 'modules', ->
+  describe 'unzip module', ->
+    it 'fires close event', (done) ->
+      fs.createReadStream(path.join(fixtures, 'zip', 'a.zip'))
+        .pipe(unzip.Parse())
+        .on('close', done)