use brfs on tests

test/package.json

@@ -0,0 +1,19 @@
+{
+  "name": "test",
+  "version": "0.0.0",
+  "author": "Feross Aboukhadijeh <feross@feross.org> (http://feross.org/)",
+  "browserify": {
+    "transform": [
+      "brfs"
+    ]
+  },
+  "main": "basic.js",
+  "scripts": {
+    "test": "tape *.js"
+  },
+  "devDependencies": {
+    "tape": "^2.12.0",
+    "brfs": "^1.0.0",
+    "browserify": "^3.33.1"
+  }
+}