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diff --git a/tests/test-util.js b/tests/test-util.js
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+/*global exports: false, require: false */
+/*jslint plusplus: false */
+// TODO: add some failing tests as well
+"use strict";
+var util = require("util");
+var urlMod = require("url");
+
+// testing util.heir
+var ensureHeir = function (test) {
+  var fedlimid = {}, naoise = {};
+
+  function Father(x) {
+    this.family = x;
+  }
+  
+  Father.prototype.getFamily = function getFamily() {
+    return this.family;
+  };
+
+  function Son(x, w) {
+    Father.call(this, x);
+    this.wife = w;
+  }
+    
+  Son.prototype = util.heir(Father);
+  Son.prototype.constructor = Son;
+  
+  Son.prototype.getWife = function getWife() {
+    return this.wife;
+  };
+  
+  Son.prototype.getFamily = function getFamily() {
+    var upFamily =
+      Father.prototype.getFamily.call(this);
+    return upFamily + ", " + this.wife;
+  };
+  
+  // for curious and non-Celtic
+  // http://en.wikipedia.org/wiki/Deirdre :)
+  fedlimid = new Father("mac Daill");
+  naoise = new Son("Usnech", "Deirdre");
+  
+  test.assertEqual(fedlimid.getFamily(), "mac Daill",
+    "checking creation of new simple object");
+  
+  test.assertEqual(naoise.getWife(), "Deirdre",
+    "checking creation of new daughter object");
+
+  test.assertEqual(naoise.getFamily(), "Usnech, Deirdre",
+    "checking creation of new overloaded method");
+};
+
+// testing util.isInList
+var ensureIsInListTrue = function (test) {
+  test.assert(util.isInList("a", ["a"]),
+    "conversion of a string to an array");
+};
+
+var ensureIsInListFalse = function (test) {
+  test.assert(!util.isInList("b", ["a"]),
+    "conversion of a string to an array");
+};
+
+var ensureIsInListEmpty = function (test) {
+  test.assert(!util.isInList("b", []),
+    "conversion of a string to an array");
+};
+
+var ensureIsInListNoMember = function (test) {
+  test.assert(!util.isInList("", ["x"]),
+    "conversion of a string to an array");
+};
+
+// testing util.filterByRegexp
+var ensureFilterByRegexp = function (test) {
+  var list = [
+    {
+      "regexp": "test(ing|ed)",
+      "addr": "correct" 
+    },
+    {
+      "regexp": "ba.*d",
+      "addr": true
+    }
+  ];
+  
+  test.assertEqual(util.filterByRegexp(list, "testing"), "correct",
+    "simple testing of filterByRegexp");
+  test.assertEqual(util.filterByRegexp(list, "unknown value"), "",
+    "simple testing of filterByRegexp with non-found address");
+  test.assert(util.filterByRegexp(list, "baaad"),
+    "simple testing of filterByRegexp with non-string return value");
+};
+
+var ensureFilterByRegexpEmpty = function (test) {
+  test.assertRaises(function () {
+      util.filterByRegexp(undefined, "tralala");
+    },
+    "list is undefined",
+    "filterByRegexp throws an exception with empty list");
+};
+
+// testing util.getISODate
+var ensureGetISODate = function (test) {
+  test.assertEqual(util.getISODate("Mon May 31 2010 23:29:09 GMT+0200 (CET)"),
+    "2010-05-31", "conversion of a Date to ISO-formatted String");
+};
+
+// testing util.valToArray
+var ensureValToArrayString = function (test) {
+  test.assertEqual(JSON.stringify(util.valToArray("a")),
+      JSON.stringify(["a"]),
+    "conversion of a string to an array");
+};
+
+var ensureValToArrayEmpty = function (test) {
+  test.assertEqual(JSON.stringify(util.valToArray("")),
+         JSON.stringify([""]),
+    "conversion of an empty string to an array");
+};
+
+var ensureValToArrayArray = function (test) {
+  test.assertEqual(JSON.stringify(util.valToArray(["a"])),
+      JSON.stringify(["a"]),
+    "non-conversion of an array");
+};
+
+// testing util.addCSVValue
+var ensureCSVAddedToNull = function (test) {
+  test.assertEqual(util.addCSVValue("", "b"), "b",
+    "adding a string to empty string");
+};
+
+var ensureCSVAddedNull = function (test) {
+  test.assertEqual(util.addCSVValue("a", ""), "a",
+    "adding nothing to a string");
+};
+
+var ensureCSVAddedString = function (test) {
+  test.assertEqual(util.addCSVValue("a", "b"), "a, b",
+    "adding one string to another one");
+};
+
+var ensureCSVAddedArray = function (test) {
+  test.assertEqual(util.addCSVValue("a", ["b", "c"]), "a, b, c",
+    "adding array to a string");
+};
+
+var ensureCSVAddedArray2Array = function (test) {
+  test.assertEqual(util.addCSVValue("a, b", ["c", "d"]), "a, b, c, d",
+    "adding one array to another");
+};
+
+// testing util.removeCSVValue
+var ensureCSVRemoveSimple = function (test) {
+  test.assertEqual(util.removeCSVValue("a, b", "b"), "a",
+    "removing one string from an array");
+
+};
+
+// also checking a tolerancy against different ways of writing arrays
+var ensureCSVRemoveNonMember = function (test) {
+  test.assertEqual(util.removeCSVValue("a,b", "c"), "a, b",
+    "removing a string from an array of which it isn't a member");
+
+};
+
+var ensureCSVRemoveEmpty = function (test) {
+  test.assertEqual(util.removeCSVValue("", "c"), "",
+    "removing a string from an empty array");
+
+};
+
+// testing util.getObjectKeys
+var ensureGetObjectKeys = function (test) {
+  var testObj = {
+    a: 1,
+    b: 2
+  };
+  test.assertEqual(JSON.stringify(util.getObjectKeys(testObj)),
+      JSON.stringify(["a", "b"]),
+    "getting keys from a object");
+};
+
+// testing util.getParamsFromURL
+var ensureGetParamsFromURL = function (test) {
+  test.assertEqual(JSON.stringify(util.getParamsFromURL("https://bugzilla.redhat.com/show_bug.cgi?id=549066")),
+    JSON.stringify({id:"549066"}),
+    "simply compare result of bugzilla show_page URL");
+  var complexURL = new urlMod.URL("http://www.google.com/search?ie=UTF-8&oe=UTF-8&sourceid=navclient"+
+    "&gfns=1&q=gg+javascript+url+parse");
+  test.assertEqual(JSON.stringify(util.getParamsFromURL(complexURL)),
+    JSON.stringify({
+      "ie":"UTF-8",
+      "oe":"UTF-8",
+      "sourceid":"navclient",
+      "gfns":"1",
+      "q":"gg+javascript+url+parse"
+    }),
+    "simply compare result of bugzilla show_page URL");
+  test.assertEqual(JSON.stringify(util.getParamsFromURL("https://bugzilla.redhat.com/")),
+    JSON.stringify({}),
+    "URL without any parameters");
+  test.assertRaises(function () {util.getParamsFromURL("");},
+    "Missing URL value!", "No URL");
+};
+
+// testing util.getBugNo
+var ensureGetBugNo = function (test) {
+  var bugNo = util.getBugNo("https://bugzilla.redhat.com/show_bug.cgi?id=597141");
+  test.assertEqual(bugNo, 597141, "getting bug number");
+  bugNo = util.getBugNo("https://bugzilla.redhat.com/show_bug.cgi?id=serialWacom");
+  test.assertEqual(bugNo, "serialWacom", "getting a bug alias; there is no guarantee of getting number!");
+};