migrated casper/auth tests to new testing format

 /*global casper*/
 /*jshint strict:false maxstatements:99*/
 
-casper.start('tests/site/index.html');
+casper.test.begin('HTTP authentication tests', 8, function(test) {
+    casper.start('tests/site/index.html');
 
-casper.configureHttpAuth('http://localhost/');
-casper.test.assertEquals(casper.page.settings.userName, undefined);
-casper.test.assertEquals(casper.page.settings.password, undefined);
+    casper.configureHttpAuth('http://localhost/');
+    test.assertEquals(casper.page.settings.userName, undefined);
+    test.assertEquals(casper.page.settings.password, undefined);
 
-casper.configureHttpAuth('http://niko:plop@localhost/');
-casper.test.assertEquals(casper.page.settings.userName, 'niko');
-casper.test.assertEquals(casper.page.settings.password, 'plop');
+    casper.configureHttpAuth('http://niko:plop@localhost/');
+    test.assertEquals(casper.page.settings.userName, 'niko');
+    test.assertEquals(casper.page.settings.password, 'plop');
 
-casper.configureHttpAuth('http://localhost/', {username: 'john', password: 'doe'});
-casper.test.assertEquals(casper.page.settings.userName, 'john');
-casper.test.assertEquals(casper.page.settings.password, 'doe');
+    casper.configureHttpAuth('http://localhost/', {username: 'john', password: 'doe'});
+    test.assertEquals(casper.page.settings.userName, 'john');
+    test.assertEquals(casper.page.settings.password, 'doe');
 
-casper.configureHttpAuth('http://niko:plop@localhost/', {username: 'john', password: 'doe'});
-casper.test.assertEquals(casper.page.settings.userName, 'niko');
-casper.test.assertEquals(casper.page.settings.password, 'plop');
+    casper.configureHttpAuth('http://niko:plop@localhost/', {username: 'john', password: 'doe'});
+    test.assertEquals(casper.page.settings.userName, 'niko');
+    test.assertEquals(casper.page.settings.password, 'plop');
 
-casper.run(function() {
-    this.test.done(8);
+    casper.run(function() {
+        test.done();
+    });
 });