refactor: init cypress-cucumber-preprocessor install.

node_modules/browserify/test/async.js

@@ -0,0 +1,24 @@
+var browserify = require('../');
+var fs = require('fs');
+var vm = require('vm');
+var test = require('tap').test;
+
+var src = fs.readFileSync(__dirname + '/async/src.js','utf8');
+var canAsync = true;
+try { Function(src) } catch (err) { canAsync = false }
+
+if (!canAsync) console.error('# async/await unsupported in this environment')
+else test('async/await', function (t) {
+    t.plan(2);
+    var b = browserify(__dirname + '/async/src.js');
+    b.bundle(function (err, src) {
+        t.error(err)
+        var c = {
+            console: { log: log },
+            setTimeout: setTimeout,
+            clearTimeout: clearTimeout
+        }
+        vm.runInNewContext(src, c);
+        function log (msg) { t.equal(msg, 60) }
+    });
+});