Added some tests

test/bind/bind.test.js

@@ -5,9 +5,15 @@ test('Testing bind', (t) => {
   //For more information on all the methods supported by tape
   //Please go to https://github.com/substack/tape
   t.true(typeof bind === 'function', 'bind is a Function');
+  function greet(greeting, punctuation) {
+    return greeting + ' ' + this.user + punctuation;
+  }
+  const freddy = { user: 'fred' };
+  const freddyBound = bind(greet, freddy);
+  t.equals(freddyBound('hi', '!'),'hi fred!', 'Binds to an object context');
   //t.deepEqual(bind(args..), 'Expected');
   //t.equal(bind(args..), 'Expected');
   //t.false(bind(args..), 'Expected');
   //t.throws(bind(args..), 'Expected');
   t.end();
-});
+});