add a test

lib/ace/ext/ie_quirks.js

@@ -34,13 +34,12 @@ var MAX_TOKEN_COUNT = 1000;
 var useragent = require("../lib/useragent")
 var TokenizerModule = require("../tokenizer")
 
-var compliantExecNpcg = /()??/.exec("")[1] === undefined;
-compliantExecNpcg=0
-if (compliantExecNpcg)
-    return;
 if (useragent.isIE && useragent.isIE < 10 && window.top.document.compatMode === "BackCompat")
     useragent.isOldIE = true;
-    
+
+var compliantExecNpcg = /()??/.exec("")[1] === undefined;
+if (compliantExecNpcg)
+    return;
 
 var proto = TokenizerModule.Tokenizer.prototype;
 eval("TokenizerModule.Tokenizer = " + 

lib/ace/ext/ie_quirks_test.js

@@ -0,0 +1,72 @@
+/* ***** BEGIN LICENSE BLOCK *****
+ * Distributed under the BSD license:
+ *
+ * Copyright (c) 2010, Ajax.org B.V.
+ * All rights reserved.
+ * 
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *     * Redistributions of source code must retain the above copyright
+ *       notice, this list of conditions and the following disclaimer.
+ *     * Redistributions in binary form must reproduce the above copyright
+ *       notice, this list of conditions and the following disclaimer in the
+ *       documentation and/or other materials provided with the distribution.
+ *     * Neither the name of Ajax.org B.V. nor the
+ *       names of its contributors may be used to endorse or promote products
+ *       derived from this software without specific prior written permission.
+ * 
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+ * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ * DISCLAIMED. IN NO EVENT SHALL AJAX.ORG B.V. BE LIABLE FOR ANY
+ * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+ * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ * ***** END LICENSE BLOCK ***** */
+
+if (typeof process !== "undefined") {
+    require("amd-loader");
+}
+
+define(function(require, exports, module) {
+"use strict";
+
+var assert = require("../test/assertions");
+
+module.exports = {
+    "test: getTokenizer() (smoke test)" : function() {
+        var exec = RegExp.prototype.exec
+        var brokenExec = function(str) {
+            var result = exec.call(this, str);
+            if (result) {
+                for (var i = result.length; i--;)
+                    if (!result[i])
+                        result[i] = "";
+            }
+            return result;
+        }
+        
+        try {
+            RegExp.prototype.exec = brokenExec;
+            require("./ie_quirks");
+            var JavaScriptMode = require("../mode/javascript").Mode;
+            var mode = new JavaScriptMode();
+            var tokenizer = mode.getTokenizer();
+
+            var tokens = tokenizer.getLineTokens("'juhu'", "start").tokens;
+            assert.equal("string", tokens[0].type);
+        } finally {
+            RegExp.prototype.exec = exec;
+        }
+    }
+};
+
+});
+
+if (typeof module !== "undefined" && module === require.main) {
+    require("asyncjs").test.testcase(module.exports).exec()
+}