Improved examples

Author: jhnns

README.md

@@ -26,20 +26,43 @@ Installation
 Examples
 --------
 
+Imagine you want to test this module:
+
 ```javascript
-var rewire = require("rewire");
+// lib/myModule.js
+
+// With rewire you can change all these variables
+var fs = require("fs"),
+    http = require("http"),
+    someOtherVar = "hi",
+    myPrivateVar = 1;
+    
+function readSomethingFromFileSystem(cb) {
+    // But no scoped variables
+    var path;
+    
+    console.log("Reading from file system ..."):
+    fs.readFile(path, "utf8", cb);
+}
+
+exports.readSomethingFromFileSystem = readSomethingFromFileSystem;
+```
+
+Now within your test module:
 
+```javascript
+// test/myModule.test.js
+
+var rewire = require("rewire");
 
 // rewire acts exactly like require.
 var myModule = rewire("../lib/myModule.js");
 
-
 // Just with one difference:
 // Your module will now export a special setter and getter for private variables.
 myModule.__set__("myPrivateVar", 123);
 myModule.__get__("myPrivateVar"); // = 123
 
-
 // This allows you to mock almost everything within the module e.g. the fs-module.
 // Just pass the variable name as first parameter and your mock as second.
 myModule.__set__("fs", {
@@ -51,15 +74,13 @@ myModule.readSomethingFromFileSystem(function (err, data) {
     console.log(data); // = Success!
 });
 
-
 // You can set different variables with one call.
 myModule.__set__({
     fs: fsMock,
     http: httpMock,
     someOtherVar: "hello"
 });
 
-
 // You may also override globals. These changes are only within the module, so
 // you don't have to be concerned that other modules are influenced by your mock.
 myModule.__set__({
@@ -71,7 +92,6 @@ myModule.__set__({
     }
 });
 
-
 // But be careful, if you do something like this you'll change your global
 // console instance.
 myModule.__set__("console.log", function () { /* be quiet */ });
@@ -143,4 +163,4 @@ var webpackOptions = {
 require("rewire").bundlers.webpack(webpackOptions);
 
 webpack("entry.js", webpackOptions, function () {});
-```
+```