introduced global setUp() and tearDown() hooks

@@ -66,7 +66,37 @@ casper.test.begin('Casperjs.org is navigable', 2, function suite(test) {
 });
 ```
 
-`Tester#begin()` has also `setUp()` and `tearDown()` capabilities if you pass it a configuration object instead of a function:
+[`Tester#setUp()`](docs.casperjs.org/en/latest/modules/tester.html#setup) and [`Tester#tearDown()`](docs.casperjs.org/en/latest/modules/tester.html#teardown) methods have been also added in order to ease the definition of operations to be performed before and after each test defined using `Tester#begin()`:
+
+```js
+casper.test.setUp(function() {
+    console.log('executed before each test');
+});
+
+casper.test.tearDown(function() {
+    console.log('executed after each test');
+});
+```
+
+Both can work asynchronously as well of you define the `done` argument:
+
+```js
+casper.test.setUp(function(done) {
+    setTimeout(function() {
+        console.log('asynchronously executed before each test');
+        done();
+    }, 1000);
+});
+
+casper.test.tearDown(function(done) {
+    setTimeout(function() {
+        console.log('asynchronously executed after each test');
+        done();
+    }, 1000);
+});
+```
+
+`Tester#begin()` itself has also local `setUp()` and `tearDown()` capabilities if you pass it a configuration object instead of a function:
 
 ```js
 casper.test.begin('range tests', 1, {
@@ -75,9 +105,11 @@ casper.test.begin('range tests', 1, {
     setUp: function(test) {
         this.range.push(3);
     },
+
     tearDown: function(test) {
         range = [];
     },
+
     test: function(test) {
         test.assertEquals(range.length, 3);
         test.done();
@@ -85,7 +117,7 @@ casper.test.begin('range tests', 1, {
 });
 ```
 
-Also, scraping and testing are now betterly separated in CasperJS, and bad code is now a bit less bad. That involves breaking up BC on some points though:
+Scraping and testing are now better separated in CasperJS. That involves breaking up BC on some points though:
 
 - The Casper object won't be created with a `test` reference if not invoked using the [`casperjs test` command](http://casperjs.org/testing.html#casper-test-command), therefore the ability to run any test without calling it has been dropped. I know, get over it.
 - Passing the planned number of tests to `casper.done()` has been dropped as well, because `done()` may be never called at all when big troubles happen; rather use the new `begin()` method and provide the expected number of tests using the second argument:

@@ -761,6 +761,31 @@ Render test results, save results in an XUnit formatted file, and optionally exi
 
    This method is not to be called when using the ``casperjs test`` command (see documentation for :doc:`testing <../testing>`), where it's done automatically for you.
 
+``setUp()``
+-------------------------------------------------------------------------------
+
+**Signature:** ``setUp([Function fn])``
+
+Defines a function which will be executed before every test defined using `begin()`_::
+
+    casper.test.setUp(function() {
+        casper.start().userAgent('Mosaic 0.1');
+    });
+
+To perform asynchronous operations, use the ``done`` argument::
+
+    casper.test.setUp(function(done) {
+        casper.start('http://foo').then(function() {
+            // ...
+        }).run(done);
+    });
+
+.. warning::
+
+   Don't specify the ``done`` argument if you don't intend to use the method asynchronously.
+
+.. seealso:: `tearDown()`_
+
 ``skip()``
 -------------------------------------------------------------------------------
 
@@ -774,3 +799,28 @@ Skips a given number of planned tests::
         test.skip(2, 'Two tests skipped');
         test.done();
     });
+
+``tearDown()``
+-------------------------------------------------------------------------------
+
+**Signature:** ``tearDown([Function fn])``
+
+Defines a function which will be executed before after every test defined using `begin()`_::
+
+    casper.test.tearDown(function() {
+        casper.echo('See ya');
+    });
+
+To perform asynchronous operations, use the ``done`` argument::
+
+    casper.test.tearDown(function(done) {
+        casper.start('http://foo/goodbye').then(function() {
+            // ...
+        }).run(done);
+    });
+
+.. warning::
+
+   Don't specify the ``done`` argument if you don't intend to use the method asynchronously.
+
+.. seealso:: `setUp()`_

@@ -96,6 +96,8 @@ var Tester = function Tester(casper, options) {
     this.casper = casper;
 
     // public properties
+    this._setUp = undefined;
+    this._tearDown = undefined;
     this.aborted = false;
     this.executed = 0;
     this.currentTestFile = null;
@@ -892,27 +894,44 @@ Tester.prototype.bar = function bar(text, style) {
 };
 
 /**
- * Starts a suite.
+ * Defines a function which will be executed before every test.
  *
- * Can be invoked two different ways:
+ * @param  Function  fn
+ */
+Tester.prototype.setUp = function setUp(fn) {
+    "use strict";
+    this._setUp = fn;
+};
+
+/**
+ * Defines a function which will be executed after every test.
  *
- *     casper.test.begin("suite description", plannedTests, function(test){})
+ * @param  Function  fn
+ */
+Tester.prototype.tearDown = function tearDown(fn) {
+    "use strict";
+    this._tearDown = fn;
+};
+
+/**
+ * Starts a suite.
  *
- * Or:
+ * Can be invoked different ways:
  *
+ *     casper.test.begin("suite description", plannedTests, function(test){})
  *     casper.test.begin("suite description", function(test){})
- *
  */
 Tester.prototype.begin = function begin() {
     "use strict";
-    if (this.started && this.running) {
+    if (this.started && this.running)
         return this.queue.push(arguments);
-    }
+
     function getConfig(args) {
         var config = {
             setUp: function(){},
             tearDown: function(){}
         };
+
         if (utils.isFunction(args[1])) {
             config.test = args[1];
         } else if (utils.isObject(args[1])) {
@@ -926,42 +945,56 @@ Tester.prototype.begin = function begin() {
         } else {
             throw new CasperError('Invalid call');
         }
-        if (!utils.isFunction(config.test)) {
+
+        if (!utils.isFunction(config.test))
             throw new CasperError('begin() is missing a mandatory test function');
-        }
+
         return config;
     }
+
     var description = arguments[0] || f("Untitled suite in %s", this.currentTestFile),
-        config = getConfig([].slice.call(arguments));
-    if (!this.options.concise) {
+        config = getConfig([].slice.call(arguments)),
+        next = function() {
+            config.test(this, this.casper);
+            if (this.options.concise)
+                this.casper.echo([
+                    this.colorize('PASS', 'INFO'),
+                    this.formatMessage(description),
+                    this.colorize(f('(%d test%s)',
+                                    config.planned,
+                                    config.planned > 1 ? 's' : ''), 'INFO')
+                ].join(' '));
+        }.bind(this);
+
+    if (!this.options.concise)
         this.comment(description);
-    }
+
     this.currentSuite = new TestCaseResult({
         name: description,
         file: this.currentTestFile,
         config: config,
         planned: config.planned || undefined
     });
+
     this.executed = 0;
     this.running = this.started = true;
+
     try {
-        if (config.setUp) {
+        if (config.setUp)
             config.setUp(this, this.casper);
-        }
-        config.test(this, this.casper);
+
+        if (!this._setUp)
+            return next();
+
+        if (this._setUp.length > 0)
+            return this._setUp.call(this, next); // async
+
+        this._setUp.call(this);                  // sync
+        next();
     } catch (err) {
         this.processError(err);
         this.done();
     }
-    if (this.options.concise) {
-        this.casper.echo([
-            this.colorize('PASS', 'INFO'),
-            this.formatMessage(description),
-            this.colorize(f('(%d test%s)',
-                            config.planned,
-                            config.planned > 1 ? 's' : ''), 'INFO')
-        ].join(' '));
-    }
 };
 
 /**
@@ -995,10 +1028,12 @@ Tester.prototype.done = function done() {
     "use strict";
     /*jshint maxstatements:20, maxcomplexity:20*/
     var planned, config = this.currentSuite && this.currentSuite.config || {};
+
     if (utils.isNumber(arguments[0])) {
         this.casper.warn('done() `planned` arg is deprecated as of 1.1');
         planned = arguments[0];
     }
+
     if (config && config.tearDown && utils.isFunction(config.tearDown)) {
         try {
             config.tearDown(this, this.casper);
@@ -1006,25 +1041,45 @@ Tester.prototype.done = function done() {
             this.processError(error);
         }
     }
-    if (this.currentSuite && this.currentSuite.planned &&
-        this.currentSuite.planned !== this.executed + this.currentSuite.skipped &&
-        !this.currentSuite.failed) {
-        this.dubious(this.currentSuite.planned, this.executed, this.currentSuite.name);
-    } else if (planned && planned !== this.executed) {
-        // BC
-        this.dubious(planned, this.executed);
-    }
-    if (this.currentSuite) {
-        this.suiteResults.push(this.currentSuite);
-        this.currentSuite = undefined;
-        this.executed = 0;
+
+    var next = function() {
+        if (this.currentSuite && this.currentSuite.planned &&
+            this.currentSuite.planned !== this.executed + this.currentSuite.skipped &&
+            !this.currentSuite.failed) {
+            this.dubious(this.currentSuite.planned, this.executed, this.currentSuite.name);
+        } else if (planned && planned !== this.executed) {
+            // BC
+            this.dubious(planned, this.executed);
+        }
+        if (this.currentSuite) {
+            this.suiteResults.push(this.currentSuite);
+            this.currentSuite = undefined;
+            this.executed = 0;
+        }
+        this.emit('test.done');
+        this.casper.currentHTTPResponse = {};
+        this.running = this.started = false;
+        var nextTest = this.queue.shift();
+        if (nextTest) {
+            this.begin.apply(this, nextTest);
+        }
+    }.bind(this);
+
+    if (!this._tearDown) {
+        return next();
     }
-    this.emit('test.done');
-    this.casper.currentHTTPResponse = {};
-    this.running = this.started = false;
-    var nextTest = this.queue.shift();
-    if (nextTest) {
-        this.begin.apply(this, nextTest);
+
+    try {
+        if (this._tearDown.length > 0) {
+            // async
+            this._tearDown.call(this, next);
+        } else {
+            // sync
+            this._tearDown.call(this);
+            next();
+        }
+    } catch (error) {
+        this.processError(error);
     }
 };
 

+/*global casper*/
+/*jshint strict:false*/
+
+var setUp, tearDown;
+
+casper.test.setUp(function(done) {
+    setTimeout(function() {
+        setUp = true;
+        done();
+    }, 50);
+});
+
+casper.test.tearDown(function(done) {
+    setTimeout(function() {
+        tearDown = true;
+        done();
+    }, 50);
+});
+
+casper.test.begin('setUp() tests', 1, function(test) {
+    test.assertTrue(setUp, 'Tester.setUp() executed the async setup function');
+    test.done();
+});
+
+casper.test.begin('tearDown() tests', 1, function(test) {
+    test.assertTrue(tearDown, 'Tester.tearDown() executed the async tear down function');
+    // reset
+    test.setUp();
+    test.tearDown();
+    test.done();
+});

+/*global casper*/
+/*jshint strict:false*/
+
+var setUp, tearDown;
+
+casper.test.setUp(function() {
+    setUp = true;
+});
+
+casper.test.tearDown(function() {
+    tearDown = true;
+});
+
+casper.test.begin('setUp() tests', 1, function(test) {
+    test.assertTrue(setUp, 'Tester.setUp() executed the setup function');
+    test.done();
+});
+
+casper.test.begin('tearDown() tests', 1, function(test) {
+    test.assertTrue(tearDown, 'Tester.tearDown() executed the tear down function');
+    // reset
+    test.setUp();
+    test.tearDown();
+    test.done();
+});