diff -r 000000000000 -r 6474c204b198 toolkit/components/feeds/test/shell.js
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/toolkit/components/feeds/test/shell.js	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,129 @@
+/* -*- Mode: Java; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*-
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+// shell.js
+// This file sets up the unit test environment by building an array of files
+// to be tested. It assumes it lives in a folder adjacent to the a folder
+// called 'xml', where the testcases live.
+//
+// The directory layout looks something like this:
+//
+// tests/ *shell.js*
+//       |                  
+//       - test.js
+//       |
+//       - xml/ -- rss1/... 
+//              |
+//              -- rss2/...
+//              |
+//              -- atom/testcase.xml
+
+function trimString(s)
+{
+  return(s.replace(/^\s+/,'').replace(/\s+$/,''));
+}
+
+var tests = new Array();
+const ioService = Components.classes['@mozilla.org/network/io-service;1'].getService(Components.interfaces.nsIIOService);
+
+// find the directory containing our test XML
+
+if (0 < arguments.length) {
+
+  // dir is specified on the command line
+  
+  var topDir = Components.classes["@mozilla.org/file/local;1"]
+    .createInstance(Components.interfaces.nsILocalFile);
+  
+  topDir.initWithPath(arguments[0]);
+}
+else {
+  const nsIDirectoryServiceProvider
+    = Components.interfaces.nsIDirectoryServiceProvider;
+  const nsIDirectoryServiceProvider_CONTRACTID
+    = "@mozilla.org/file/directory_service;1";
+
+  var dirServiceProvider 
+    = Components.classes[nsIDirectoryServiceProvider_CONTRACTID]
+    .getService(nsIDirectoryServiceProvider);
+
+  var persistent = new Object();
+
+  var topDir = dirServiceProvider.getFile("CurWorkD", persistent);
+}
+
+var entries = topDir.directoryEntries;
+var xmlDir;
+while(entries.hasMoreElements()){
+  xmlDir = entries.getNext();
+  xmlDir.QueryInterface(Components.interfaces.nsILocalFile);
+  if(xmlDir.leafName == "xml") 
+    break;
+  else
+    xmlDir = null;
+}
+
+// if we got our xmldir, find our testcases
+var testDir;
+if(xmlDir){
+  entries = xmlDir.directoryEntries;
+  while(entries.hasMoreElements()){
+    testDir = entries.getNext();
+    testDir.QueryInterface(Components.interfaces.nsILocalFile);
+    if(testDir.exists() && testDir.isDirectory()){
+      var testfiles = testDir.directoryEntries;
+      while(testfiles.hasMoreElements()){ // inside an individual testdir, like "rss2"
+        var test = testfiles.getNext();
+        test.QueryInterface(Components.interfaces.nsILocalFile);
+        if(test.exists() && test.isFile()){
+          
+          // Got a feed file, now we need to add it to our tests
+          // and parse out the Description and Expect headers.
+          // That lets us write one test.js file and keep the
+          // tests with the XML. Convenient method learned from
+          // Mark Pilgrim.
+
+          var istream = Components.classes["@mozilla.org/network/file-input-stream;1"]
+                                  .createInstance(Components.interfaces.nsIFileInputStream);
+          
+          try{
+            // open an input stream from file
+            istream.init(test, 0x01, 0444, 0);
+            istream.QueryInterface(Components.interfaces.nsILineInputStream);
+            var line = {}, hasmore, testcase = {}, expectIndex, descIndex;
+
+            do {
+              hasmore = istream.readLine(line);
+              expectIndex = line.value.indexOf('Expect:');
+              descIndex = line.value.indexOf('Description:');
+              baseIndex = line.value.indexOf('Base:');
+              if(descIndex > -1)
+                testcase.desc = trimString(line.value.substring(line.value.indexOf(':')+1));
+              if(expectIndex > -1)
+                testcase.expect = trimString(line.value.substring(line.value.indexOf(':')+1));
+              if(baseIndex > -1)
+                testcase.base = ioService.newURI(trimString(line.value.substring(line.value.indexOf(':')+1)),null,null);
+              if(testcase.expect && testcase.desc){
+                // got our fields, let's add it to our array and break
+                testcase.path = xmlDir.leafName + '/' + testDir.leafName + '/' + test.leafName;
+                testcase.file = test;
+                tests.push(testcase);
+                break; // out of do-while
+              }
+              
+            } while(hasmore);
+
+          }catch(e){
+            dump("FAILED! Error reading test case in file " + test.leafName  + " " + e + "\n"); 
+          }finally{
+            istream.close();
+          }
+        }
+      }
+    }
+  }
+}
+
+load(topDir.path+'/test.js');