diff --git a/js/test/Helper.js b/js/test/Helper.js
index 2cd5202f..434cd3e5 100644
--- a/js/test/Helper.js
+++ b/js/test/Helper.js
@@ -96,36 +96,34 @@ describe('Helper', function () {
         jsc.property(
             'replaces URLs with anchors',
             'string',
-            jsc.elements(['http', 'https', 'ftp']),
-            jsc.nearray(common.jscA2zString()),
-            jsc.array(common.jscQueryString()),
+            common.jscUrl(),
             jsc.array(common.jscHashString()),
             'string',
-            function (prefix, schema, address, query, fragment, postfix) {
-                query    = query.join('');
-                fragment = fragment.join('');
+            function (prefix, url, fragment, postfix) {
                 prefix = prefix.replace(/\r|\f/g, '\n').replace(/\u0000/g, '').replace(/\u000b/g, '');
                 postfix  = ' ' + postfix.replace(/\r/g, '\n').replace(/\u0000/g, '');
-                let url  = schema + '://' + address.join('') + '/?' + query + '#' + fragment,
+                url.fragment = fragment.join('');
+                let urlString = common.urlToString(url),
                     clean = jsdom();
                 $('body').html('<div id="foo"></div>');
                 let e = $('#foo');
 
                 // special cases: When the query string and fragment imply the beginning of an HTML entity, eg. &#0 or &#x
                 if (
-                    query.slice(-1) === '&' &&
-                    (parseInt(fragment.substring(0, 1), 10) >= 0 || fragment.charAt(0) === 'x' )
-                )
-                {
-                    url = schema + '://' + address.join('') + '/?' + query.substring(0, query.length - 1);
+                    url.query[-1] === '&' &&
+                    (parseInt(url.fragment.charAt(0), 10) >= 0 || url.fragment.charAt(0) === 'x')
+                ) {
+                    url.query.pop();
+                    urlString = common.urlToString(url);
                     postfix = '';
                 }
-                e.text(prefix + url + postfix);
+                e.text(prefix + urlString + postfix);
                 $.PrivateBin.Helper.urls2links(e);
                 let result = e.html();
                 clean();
-                url = $('<div />').text(url).html();
-                return $('<div />').text(prefix).html() + '<a href="' + url + '" target="_blank" rel="nofollow noopener noreferrer">' + url + '</a>' + $('<div />').text(postfix).html() === result;
+                urlString = $('<div />').text(urlString).html();
+                const expected = $('<div />').text(prefix).html() + '<a href="' + urlString + '" target="_blank" rel="nofollow noopener noreferrer">' + urlString + '</a>' + $('<div />').text(postfix).html();
+                return $('<div />').text(prefix).html() + '<a href="' + urlString + '" target="_blank" rel="nofollow noopener noreferrer">' + urlString + '</a>' + $('<div />').text(postfix).html() === result;
             }
         );
         jsc.property(
diff --git a/js/test/Model.js b/js/test/Model.js
index 9ebc5472..491154b4 100644
--- a/js/test/Model.js
+++ b/js/test/Model.js
@@ -80,23 +80,22 @@ describe('Model', function () {
 
         jsc.property(
             'returns the query string without separator, if any',
-            jsc.nearray(common.jscA2zString()),
-            jsc.nearray(common.jscA2zString()),
+            common.jscUrl(),
             jsc.tuple(new Array(16).fill(common.jscHexString)),
             jsc.array(common.jscQueryString()),
             jsc.array(common.jscQueryString()),
-            'string',
-            function (schema, address, pasteId, queryStart, queryEnd, fragment) {
-                var pasteIdString    = pasteId.join(''),
-                    queryStartString = queryStart.join('') + (queryStart.length > 0 ? '&' : ''),
-                    queryEndString   = (queryEnd.length > 0 ? '&' : '') + queryEnd.join(''),
-                    queryString      = queryStartString + pasteIdString + queryEndString,
-                    clean            = jsdom('', {
-                        url: schema.join('') + '://' + address.join('') +
-                             '/?' + queryString + '#' + fragment
-                    });
-                    global.URL = require('jsdom-url').URL;
-                    var result = $.PrivateBin.Model.getPasteId();
+            function (url, pasteId, queryStart, queryEnd) {
+                if (queryStart.length > 0) {
+                    queryStart.push('&');
+                }
+                if (queryEnd.length > 0) {
+                    queryEnd.unshift('&');
+                }
+                url.query = queryStart.concat(pasteId, queryEnd);
+                const pasteIdString = pasteId.join(''),
+                    clean           = jsdom('', {url: common.urlToString(url)});
+                global.URL = require('jsdom-url').URL;
+                const result = $.PrivateBin.Model.getPasteId();
                 $.PrivateBin.Model.reset();
                 clean();
                 return pasteIdString === result;
@@ -104,14 +103,9 @@ describe('Model', function () {
         );
         jsc.property(
             'throws exception on empty query string',
-            jsc.nearray(common.jscA2zString()),
-            jsc.nearray(common.jscA2zString()),
-            'string',
-            function (schema, address, fragment) {
-                var clean = jsdom('', {
-                        url: schema.join('') + '://' + address.join('') +
-                             '/#' + fragment
-                    }),
+            common.jscUrl(true, false),
+            function (url) {
+                let clean = jsdom('', {url: common.urlToString(url)}),
                     result = false;
                 global.URL = require('jsdom-url').URL;
                 try {
@@ -135,35 +129,24 @@ describe('Model', function () {
 
         jsc.property(
             'returns the fragment of a v1 URL',
-            jsc.nearray(common.jscA2zString()),
-            jsc.nearray(common.jscA2zString()),
-            jsc.array(common.jscQueryString()),
-            'nestring',
-            function (schema, address, query, fragment) {
-                const fragmentString = common.btoa(fragment.padStart(32, '\u0000'));
-                let clean = jsdom('', {
-                        url: schema.join('') + '://' + address.join('') +
-                             '/?' + query.join('') + '#' + fragmentString
-                    }),
+            common.jscUrl(),
+            function (url) {
+                url.fragment = common.btoa(url.fragment.padStart(32, '\u0000'));
+                const clean = jsdom('', {url: common.urlToString(url)}),
                     result = $.PrivateBin.Model.getPasteKey();
                 $.PrivateBin.Model.reset();
                 clean();
-                return fragmentString === result;
+                return url.fragment === result;
             }
         );
         jsc.property(
             'returns the v1 fragment stripped of trailing query parts',
-            jsc.nearray(common.jscA2zString()),
-            jsc.nearray(common.jscA2zString()),
-            jsc.array(common.jscQueryString()),
-            'nestring',
+            common.jscUrl(),
             jsc.array(common.jscHashString()),
-            function (schema, address, query, fragment, trail) {
-                const fragmentString = common.btoa(fragment.padStart(32, '\u0000'));
-                let clean = jsdom('', {
-                        url: schema.join('') + '://' + address.join('') + '/?' +
-                             query.join('') + '#' + fragmentString + '&' + trail.join('')
-                    }),
+            function (url, trail) {
+                const fragmentString = common.btoa(url.fragment.padStart(32, '\u0000'));
+                url.fragment = fragmentString + '&' + trail.join('');
+                const clean = jsdom('', {url: common.urlToString(url)}),
                     result = $.PrivateBin.Model.getPasteKey();
                 $.PrivateBin.Model.reset();
                 clean();
@@ -172,18 +155,12 @@ describe('Model', function () {
         );
         jsc.property(
             'returns the fragment of a v2 URL',
-            jsc.nearray(common.jscA2zString()),
-            jsc.nearray(common.jscA2zString()),
-            jsc.array(common.jscQueryString()),
-            'nestring',
-            function (schema, address, query, fragment) {
+            common.jscUrl(),
+            function (url) {
                 // base58 strips leading NULL bytes, so the string is padded with these if not found
-                fragment = fragment.padStart(32, '\u0000');
-                let fragmentString = $.PrivateBin.CryptTool.base58encode(fragment),
-                    clean = jsdom('', {
-                        url: schema.join('') + '://' + address.join('') +
-                             '/?' + query.join('') + '#' + fragmentString
-                    }),
+                const fragment = url.fragment.padStart(32, '\u0000');
+                url.fragment = $.PrivateBin.CryptTool.base58encode(fragment);
+                const clean = jsdom('', {url: common.urlToString(url)}),
                     result = $.PrivateBin.Model.getPasteKey();
                 $.PrivateBin.Model.reset();
                 clean();
@@ -192,19 +169,13 @@ describe('Model', function () {
         );
         jsc.property(
             'returns the v2 fragment stripped of trailing query parts',
-            jsc.nearray(common.jscA2zString()),
-            jsc.nearray(common.jscA2zString()),
-            jsc.array(common.jscQueryString()),
-            'nestring',
+            common.jscUrl(),
             jsc.array(common.jscHashString()),
-            function (schema, address, query, fragment, trail) {
+            function (url, trail) {
                 // base58 strips leading NULL bytes, so the string is padded with these if not found
-                fragment = fragment.padStart(32, '\u0000');
-                let fragmentString = $.PrivateBin.CryptTool.base58encode(fragment),
-                    clean = jsdom('', {
-                        url: schema.join('') + '://' + address.join('') + '/?' +
-                             query.join('') + '#' + fragmentString + '&' + trail.join('')
-                    }),
+                const fragment = url.fragment.padStart(32, '\u0000');
+                url.fragment = $.PrivateBin.CryptTool.base58encode(fragment) + '&' + trail.join('');
+                const clean = jsdom('', {url: common.urlToString(url)}),
                     result = $.PrivateBin.Model.getPasteKey();
                 $.PrivateBin.Model.reset();
                 clean();
@@ -213,14 +184,9 @@ describe('Model', function () {
         );
         jsc.property(
             'throws exception on empty fragment of the URL',
-            jsc.nearray(common.jscA2zString()),
-            jsc.nearray(common.jscA2zString()),
-            jsc.array(common.jscQueryString()),
-            function (schema, address, query) {
-                var clean = jsdom('', {
-                        url: schema.join('') + '://' + address.join('') +
-                             '/?' + query.join('')
-                    }),
+            common.jscUrl(false, false),
+            function (url) {
+                let clean = jsdom('', {url: common.urlToString(url)}),
                     result = false;
                 try {
                     $.PrivateBin.Model.getPasteKey();