make spy decorator

ospec/README.md

@@ -4,7 +4,7 @@
 
 Noiseless testing framework
 
-Version: 1.0  
+Version: 1.1 
 License: MIT
 
 ## About
@@ -117,6 +117,29 @@ o.spec("call()", function() {
 })
 ```
 
+A spy can also wrap other functions, like a decorator:
+
+```javascript
+//code to be tested
+var count = 0
+function inc() {
+	count++
+}
+
+//test suite
+var o = require("ospec")
+
+o.spec("call()", function() {
+	o("works", function() {
+		var spy = o.spy(inc)
+		spy()
+
+		o(count).equals(1)
+	})
+})
+
+```
+
 ### Asynchronous tests
 
 If a test body function declares a named argument, the test is assumed to be asynchronous, and the argument is a function that must be called exactly one time to signal that the test has completed. As a matter of convention, this argument is typically named `done`.
@@ -336,7 +359,7 @@ Declares that only a single test should be run, instead of all of them
 
 ---
 
-### Function o.spy()
+### Function o.spy([Function fn])
 
 Returns a function that records the number of times it gets called, and its arguments
 

ospec/ospec.js

@@ -25,8 +25,7 @@ module.exports = new function init() {
 			spy.args = [].slice.call(arguments)
 			spy.callCount++
 
-			if(fn)
+			if (fn) return fn.apply(this, arguments)
-				return fn.apply(this, arguments)
 		}
 		spy.args = []
 		spy.callCount = 0