From 3d1fb9bc3a513c0a356c7d0c3cfd9a298835bc37 Mon Sep 17 00:00:00 2001
From: ragaskar <ragaskar@laserbeam.(none)>
Date: Sun, 1 Mar 2009 07:06:09 -0800
Subject: [PATCH] added additional spy example to README.

---
 README.markdown | 25 +++++++++++++++++++++++++
 1 file changed, 25 insertions(+)

diff --git a/README.markdown b/README.markdown
index 37cbc648..ee3122f2 100644
--- a/README.markdown
+++ b/README.markdown
@@ -284,6 +284,31 @@ Here are a few examples:
       expect(callback).wasCalledWith('foo');
     });
 
+
+Spies can be very useful for testing AJAX or other asynchronous behaviors that take callbacks by faking the method firing an async call.
+
+    var Klass = function () {
+    };
+
+    var Klass.prototype.asyncMethod = function (callback) {
+      someAsyncCall(callback);
+    };
+
+    ...
+
+    it('should test async call') {
+      spyOn(Klass, 'asyncMethod');
+      var callback = Jasmine.createSpy();
+
+      Klass.asyncMethod(callback);
+      expect(callback).wasNotCalled();
+
+      var someResponseData = 'foo';
+      Klass.asyncMethod.mostRecentCall.args[0](someResponseData);
+      expect(callback).wasCalledWith(someResponseData);
+
+    });
+
 There are spy-specfic matchers that are very handy.
 
 `wasCalled()` returns true if the object is a spy and was called