npm and error messages

node_modules/base64-js/test/url-safe.js

@@ -0,0 +1,24 @@
+var test = require('tape')
+var b64 = require('../')
+
+test('decode url-safe style base64 strings', function (t) {
+  var expected = [0xff, 0xff, 0xbe, 0xff, 0xef, 0xbf, 0xfb, 0xef, 0xff]
+
+  var str = '//++/++/++//'
+  var actual = b64.toByteArray(str)
+  for (var i = 0; i < actual.length; i++) {
+    t.equal(actual[i], expected[i])
+  }
+
+  t.equal(b64.byteLength(str), actual.length)
+
+  str = '__--_--_--__'
+  actual = b64.toByteArray(str)
+  for (i = 0; i < actual.length; i++) {
+    t.equal(actual[i], expected[i])
+  }
+
+  t.equal(b64.byteLength(str), actual.length)
+
+  t.end()
+})