update elements and fix some bugs

lib/src/prism/tests/run.js

+"use strict";
+
+var TestDiscovery = require("./helper/test-discovery");
+var TestCase = require("./helper/test-case");
+var path = require("path");
+var argv = require("yargs").argv;
+
+var testSuite;
+if (argv.language) {
+        testSuite = TestDiscovery.loadSomeTests(__dirname + "/languages", argv.language);
+} else {
+        // load complete test suite
+        testSuite = TestDiscovery.loadAllTests(__dirname + "/languages");
+}
+
+// define tests for all tests in all languages in the test suite
+for (var language in testSuite) {
+        if (!testSuite.hasOwnProperty(language)) {
+                continue;
+        }
+
+        (function (language, testFiles) {
+                describe("Testing language '" + language + "'", function () {
+                        testFiles.forEach(
+                                function (filePath) {
+                                        var fileName = path.basename(filePath, path.extname(filePath));
+
+                                        it("– should pass test case '" + fileName + "'",
+                                                function () {
+                                                        TestCase.runTestCase(language, filePath);
+                                                }
+                                        );
+                                }
+                        );
+                });
+        })(language, testSuite[language]);
+}