closes #180 - local http test server

CasperJS test suites are now run against a local phantomjs based
HTTP server.

A new `casperjs selftest` command has been added to conveniently
run CasperJS own test suite.

@@ -6,4 +6,4 @@ before_script:
   - "export DISPLAY=:99.0"
   - "sh -e /etc/init.d/xvfb start"
 script:
-  - "DISPLAY=:99.0 ./bin/casperjs test tests/suites"
+  - "DISPLAY=:99.0 ./bin/casperjs selftest"

@@ -7,6 +7,7 @@ XXXX-XX-XX, v1.0.0
 - fixed [#178](https://github.com/n1k0/casperjs/issues/178) - added `Casper.getPageContent()` to access raw page body contents on non-html received content-types.
 - fixed [#164](https://github.com/n1k0/casperjs/issues/164) - ability to force CLI parameters as strings (see [related documentation](http://casperjs.org/cli.html#raw)).
 - fixed [#153](https://github.com/n1k0/casperjs/issues/153) - erroneous mouse event results when event.preventDefault() was used.
+- closed [#180](https://github.com/n1k0/casperjs/issues/180) - CasperJS tests are now run against a local HTTP test server. A new `casper selftest` command has been added as well.
 
 2012-06-26, v1.0.0-RC1
 ----------------------

@@ -250,6 +250,17 @@ if (!phantom || phantom.version.major !== 1 || phantom.version.minor < 5) {
         } else if (phantom.casperArgs.get(0) === "test") {
             phantom.casperScript = fs.absolute(fs.pathJoin(phantom.casperPath, 'tests', 'run.js'));
             phantom.casperArgs.drop("test");
+        } else if (phantom.casperArgs.get(0) === "selftest") {
+            phantom.casperScript = fs.absolute(fs.pathJoin(phantom.casperPath, 'tests', 'run.js'));
+            phantom.casperArgs.options.includes = fs.pathJoin(phantom.casperPath, 'tests', 'selftest.js');
+            if (phantom.casperArgs.args.length > 1) {
+                // we want a single test file
+                phantom.casperArgs.args.push(fs.pathJoin(phantom.casperPath, phantom.casperArgs.get(1)));
+            } else {
+                // run the whole casperjs test suite
+                phantom.casperArgs.args.push(fs.pathJoin(phantom.casperPath, 'tests', 'suites'));
+            }
+            phantom.casperArgs.drop("selftest");
         } else if (phantom.casperArgs.args.length === 0 || !!phantom.casperArgs.options.help) {
             var phantomVersion = [phantom.version.major, phantom.version.minor, phantom.version.patch].join('.');
             var f = require("utils").format;

@@ -709,6 +709,9 @@ var Tester = function Tester(casper, options) {
         if (arguments.length === 0) {
             throw new CasperError("runSuites() needs at least one path argument");
         }
+        this.includes.forEach(function(include) {
+            phantom.injectJs(include);
+        });
         Array.prototype.forEach.call(arguments, function _forEach(path) {
             if (!fs.exists(path)) {
                 self.bar(f("Path %s doesn't exist", path), "RED_BAR");
@@ -745,9 +748,6 @@ var Tester = function Tester(casper, options) {
     this.runTest = function runTest(testFile) {
         this.bar(f('Test file: %s', testFile), 'INFO_BAR');
         this.running = true; // this.running is set back to false with done()
-        this.includes.forEach(function(include) {
-            phantom.injectJs(include);
-        });
         this.exec(testFile);
     };
 

@@ -38,14 +38,6 @@ function checkIncludeFile(include) {
 casper.options.verbose = casper.cli.get('direct') || false;
 casper.options.logLevel = casper.cli.get('log-level') || "error";
 
-// overriding Casper.open to prefix all test urls
-casper.setFilter('open.location', function(location) {
-    if (!/^http/.test(location)) {
-        return f('file://%s/%s', fs.workingDirectory, location);
-    }
-    return location;
-});
-
 // test paths are passed as args
 if (casper.cli.args.length) {
     tests = casper.cli.args.filter(function(path) {

+/**
+ * CasperJS local HTTP test server
+ */
+var colorizer = require('colorizer').create('Colorizer');
+var fs = require('fs');
+var utils = require('utils');
+var server = require('webserver').create();
+var service;
+var testServerPort = 54321;
+
+function info(message) {
+    console.log(colorizer.colorize('INFO', 'INFO_BAR') + ' ' + message);
+}
+
+service = server.listen(testServerPort, function(request, response) {
+    var pageFile = fs.pathJoin(phantom.casperPath, request.url);
+    if (!fs.exists(pageFile) || !fs.isFile(pageFile)) {
+        response.statusCode = 404;
+        response.write("404 - NOT FOUND");
+    } else {
+        response.statusCode = 200;
+        response.write(fs.read(pageFile));
+    }
+    response.close();
+});
+
+// overriding Casper.open to prefix all test urls
+casper.setFilter('open.location', function(location) {
+    if (/^file/.test(location)) {
+        return location;
+    }
+    if (!/^http/.test(location)) {
+        return f('http://localhost:%d/%s', testServerPort, location);
+    }
+    return location;
+});
+
+// test suites completion listener
+casper.test.on('tests.complete', function() {
+    server.close();
+});

 var fs = require('fs');
 
-casper.start('tests/site/index.html', function() {
+// FIXME: we're using local url scheme until https://github.com/ariya/phantomjs/pull/288 is
+// possibly merged
+casper.start('file://' + phantom.casperPath + '/tests/site/index.html', function() {
     var imageUrl = 'file://' + phantom.casperPath + '/tests/site/images/phantom.png';
     var image = this.base64encode(imageUrl);
 

+/**
+ * Special test server to test for HTTP status codes
+ *
+ */
 var server = require('webserver').create();
 var service = server.listen(8090, function (request, response) {
     var code = parseInt(/^\/(\d+)$/.exec(request.url)[1], 10);

@@ -80,7 +80,7 @@ casper.then(function() {
 
     t.comment('Tester.assertHttpStatus()');
     // using file:// protocol, HTTP status is always null
-    t.assertHttpStatus(null, 'Tester.assertHttpStatus() works as expected');
+    t.assertHttpStatus(200, 'Tester.assertHttpStatus() works as expected');
 
     t.comment('Tester.assertMatch()');
     t.assertMatch("the lazy dog", /lazy/, 'Tester.assertMatch() works as expected');