diff -r 000000000000 -r 6474c204b198 addon-sdk/source/lib/sdk/deprecated/unit-test-finder.js
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/addon-sdk/source/lib/sdk/deprecated/unit-test-finder.js	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,89 @@
+/* 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/. */
+
+"use strict";
+
+module.metadata = {
+  "stability": "deprecated"
+};
+
+const file = require("../io/file");
+const memory = require('./memory');
+const suites = require('@test/options').allTestModules;
+const { Loader } = require("sdk/test/loader");
+const cuddlefish = require("sdk/loader/cuddlefish");
+
+let loader = Loader(module);
+const NOT_TESTS = ['setup', 'teardown'];
+
+var TestFinder = exports.TestFinder = function TestFinder(options) {
+  memory.track(this);
+  this.filter = options.filter;
+  this.testInProcess = options.testInProcess === false ? false : true;
+  this.testOutOfProcess = options.testOutOfProcess === true ? true : false;
+};
+
+TestFinder.prototype = {
+  findTests: function findTests(cb) {
+    var self = this;
+    var tests = [];
+    var filter;
+    // A filter string is {fileNameRegex}[:{testNameRegex}] - ie, a colon
+    // optionally separates a regex for the test fileName from a regex for the
+    // testName.
+    if (this.filter) {
+      var colonPos = this.filter.indexOf(':');
+      var filterFileRegex, filterNameRegex;
+      if (colonPos === -1) {
+        filterFileRegex = new RegExp(self.filter);
+      } else {
+        filterFileRegex = new RegExp(self.filter.substr(0, colonPos));
+        filterNameRegex = new RegExp(self.filter.substr(colonPos + 1));
+      }
+      // This function will first be called with just the filename; if
+      // it returns true the module will be loaded then the function
+      // called again with both the filename and the testname.
+      filter = function(filename, testname) {
+        return filterFileRegex.test(filename) &&
+               ((testname && filterNameRegex) ? filterNameRegex.test(testname)
+                                              : true);
+      };
+    } else
+      filter = function() {return true};
+
+    suites.forEach(function(suite) {
+        // Load each test file as a main module in its own loader instance
+        // `suite` is defined by cuddlefish/manifest.py:ManifestBuilder.build
+
+        let suiteModule;
+
+        try {
+          suiteModule = cuddlefish.main(loader, suite);
+        }
+        catch (e) {
+          if (!/^Unsupported Application/.test(e.message))
+            throw e;
+          // If `Unsupported Application` error thrown during test,
+          // skip the test suite
+          suiteModule = {
+            'test suite skipped': assert => assert.pass(e.message)
+          };
+        }
+
+        if (self.testInProcess)
+          for each (let name in Object.keys(suiteModule).sort()) {
+            if(NOT_TESTS.indexOf(name) === -1 && filter(suite, name)) {
+              tests.push({
+                           setup: suiteModule.setup,
+                           teardown: suiteModule.teardown,
+                           testFunction: suiteModule[name],
+                           name: suite + "." + name
+                         });
+            }
+          }
+      });
+
+    cb(tests);
+  }
+};