diff --git a/package.json b/package.json
index 4418452f5..3ba71fb0d 100644
--- a/package.json
+++ b/package.json
@@ -33,7 +33,6 @@
     "gh-pages": "^0.12.0",
     "highlightjs": "^9.8.0",
     "htmlparser2": "3.9.2",
-    "jsdom": "^9.11.0",
     "json": "^9.0.4",
     "lodash.defaultsdeep": "4.6.0",
     "minilog": "3.1.0",
diff --git a/src/playground/playground.js b/src/playground/playground.js
index f32e17ef9..9ee924122 100644
--- a/src/playground/playground.js
+++ b/src/playground/playground.js
@@ -59,11 +59,6 @@ window.onload = function () {
     });
     window.workspace = workspace;
 
-    // Filter available blocks
-    var toolbox = vm.filterToolbox(workspace.options.languageTree);
-    // var toolbox = workspace.options.languageTree;
-    workspace.updateToolbox(toolbox);
-
     // Attach scratch-blocks events to VM.
     workspace.addChangeListener(vm.blockListener);
     var flyoutWorkspace = workspace.getFlyout().getWorkspace();
diff --git a/src/util/filter-toolbox.js b/src/util/filter-toolbox.js
deleted file mode 100644
index 54d59ced8..000000000
--- a/src/util/filter-toolbox.js
+++ /dev/null
@@ -1,53 +0,0 @@
-/**
- * Filter Blockly toolbox XML node containing blocks to only those with
- * valid opcodes. Return a copy of the node with valid blocks.
- * @param {HTMLElement} node Blockly toolbox XML node
- * @param {Array.<string>} opcodes Valid opcodes. Blocks producing other opcodes
- * will be filtered.
- * @returns {HTMLElement} filtered toolbox XML node
- */
-var filterToolboxNode = function (node, opcodes) {
-    var filteredCategory = node.cloneNode();
-    for (var block = node.firstElementChild; block; block = block.nextElementSibling) {
-        if (block.nodeName.toLowerCase() !== 'block') continue;
-        var opcode = block.getAttribute('type').toLowerCase();
-        if (opcodes.indexOf(opcode) !== -1) {
-            filteredCategory.appendChild(block.cloneNode(true));
-        }
-    }
-    return filteredCategory;
-};
-
-/**
- * Filter Blockly toolbox XML and return a copy which only contains blocks with
- * existent opcodes. Categories with no valid children will be removed.
- * @param {HTMLElement} toolbox Blockly toolbox XML node
- * @param {Array.<string>} opcodes Valid opcodes. Blocks producing other opcodes
- * will be filtered.
- * @returns {HTMLElement} filtered toolbox XML node
- */
-var filterToolbox = function (toolbox, opcodes) {
-    if (!toolbox.hasChildNodes()) return toolbox;
-    var filteredToolbox;
-    if (toolbox.firstElementChild.nodeName.toLowerCase() === 'category') {
-        filteredToolbox = toolbox.cloneNode();
-        for (
-            var category = toolbox.firstElementChild;
-            category;
-            category = category.nextElementSibling
-        ) {
-            if (category.nodeName.toLowerCase() !== 'category') continue;
-            var filteredCategory = filterToolboxNode(category, opcodes);
-            if (filteredCategory.hasChildNodes() ||
-                filteredCategory.hasAttribute('custom')
-            ) {
-                filteredToolbox.appendChild(filteredCategory);
-            }
-        }
-    } else {
-        filteredToolbox = filterToolboxNode(toolbox, opcodes);
-    }
-    return filteredToolbox;
-};
-
-module.exports = filterToolbox;
diff --git a/src/virtual-machine.js b/src/virtual-machine.js
index b7b56af2c..1431640fb 100644
--- a/src/virtual-machine.js
+++ b/src/virtual-machine.js
@@ -1,7 +1,6 @@
 var EventEmitter = require('events');
 var util = require('util');
 
-var filterToolbox = require('./util/filter-toolbox');
 var Runtime = require('./engine/runtime');
 var sb2import = require('./import/sb2import');
 
@@ -372,17 +371,4 @@ VirtualMachine.prototype.postSpriteInfo = function (data) {
     this.editingTarget.postSpriteInfo(data);
 };
 
-
-/**
- * Filter Blockly toolbox XML and return a copy which only contains blocks with
- * existent opcodes. Categories with no valid children will be removed.
- * @param {HTMLElement} toolbox Blockly toolbox XML node
- * @returns {HTMLElement} filtered toolbox XML node
- */
-VirtualMachine.prototype.filterToolbox = function (toolbox) {
-    var opcodes = Object.keys(this.runtime._primitives)
-        .concat(Object.keys(this.runtime._hats));
-    return filterToolbox(toolbox, opcodes);
-};
-
 module.exports = VirtualMachine;
diff --git a/test/fixtures/.eslintrc.js b/test/fixtures/.eslintrc.js
deleted file mode 100644
index 8df47e667..000000000
--- a/test/fixtures/.eslintrc.js
+++ /dev/null
@@ -1,5 +0,0 @@
-module.exports = {
-    rules: {
-        'max-len': [0]
-    }
-};
diff --git a/test/fixtures/toolboxes.js b/test/fixtures/toolboxes.js
deleted file mode 100644
index 5f74c89df..000000000
--- a/test/fixtures/toolboxes.js
+++ /dev/null
@@ -1,840 +0,0 @@
-var jsdom = require('jsdom').jsdom;
-var categories = '<xml id="toolbox-categories" style="display: none">' +
-  '<category name="Motion" colour="#4C97FF" secondaryColour="#3373CC">' +
-    '<block type="motion_movesteps">' +
-      '<value name="STEPS">' +
-        '<shadow type="math_number">' +
-          '<field name="NUM">10</field>' +
-        '</shadow>' +
-      '</value>' +
-    '</block>' +
-    '<block type="motion_turnright">' +
-      '<value name="DEGREES">' +
-        '<shadow type="math_number">' +
-          '<field name="NUM">15</field>' +
-        '</shadow>' +
-      '</value>' +
-    '</block>' +
-    '<block type="motion_turnleft">' +
-      '<value name="DEGREES">' +
-        '<shadow type="math_number">' +
-          '<field name="NUM">15</field>' +
-        '</shadow>' +
-      '</value>' +
-    '</block>' +
-    '<block type="motion_pointindirection">' +
-      '<value name="DIRECTION">' +
-        '<shadow type="math_angle">' +
-          '<field name="NUM">90</field>' +
-        '</shadow>' +
-      '</value>' +
-    '</block>' +
-    '<block type="motion_pointtowards">' +
-      '<value name="TOWARDS">' +
-        '<shadow type="motion_pointtowards_menu">' +
-        '</shadow>' +
-      '</value>' +
-    '</block>' +
-    '<block type="motion_gotoxy">' +
-      '<value name="X">' +
-        '<shadow type="math_number">' +
-          '<field name="NUM">0</field>' +
-        '</shadow>' +
-      '</value>' +
-      '<value name="Y">' +
-        '<shadow type="math_number">' +
-          '<field name="NUM">0</field>' +
-        '</shadow>' +
-      '</value>' +
-    '</block>' +
-    '<block type="motion_goto">' +
-      '<value name="TO">' +
-        '<shadow type="motion_goto_menu">' +
-        '</shadow>' +
-      '</value>' +
-    '</block>' +
-    '<block type="motion_glidesecstoxy">' +
-      '<value name="SECS">' +
-        '<shadow type="math_number">' +
-          '<field name="NUM">1</field>' +
-        '</shadow>' +
-      '</value>' +
-      '<value name="X">' +
-        '<shadow type="math_number">' +
-          '<field name="NUM">0</field>' +
-        '</shadow>' +
-      '</value>' +
-      '<value name="Y">' +
-        '<shadow type="math_number">' +
-          '<field name="NUM">0</field>' +
-        '</shadow>' +
-      '</value>' +
-    '</block>' +
-    '<block type="motion_changexby">' +
-      '<value name="DX">' +
-        '<shadow type="math_number">' +
-          '<field name="NUM">10</field>' +
-        '</shadow>' +
-      '</value>' +
-    '</block>' +
-    '<block type="motion_setx">' +
-      '<value name="X">' +
-        '<shadow type="math_number">' +
-          '<field name="NUM">0</field>' +
-        '</shadow>' +
-      '</value>' +
-    '</block>' +
-    '<block type="motion_changeyby">' +
-      '<value name="DY">' +
-        '<shadow type="math_number">' +
-          '<field name="NUM">10</field>' +
-        '</shadow>' +
-      '</value>' +
-    '</block>' +
-    '<block type="motion_sety">' +
-      '<value name="Y">' +
-        '<shadow type="math_number">' +
-          '<field name="NUM">0</field>' +
-        '</shadow>' +
-      '</value>' +
-    '</block>' +
-    '<block type="motion_ifonedgebounce"></block>' +
-    '<block type="motion_setrotationstyle">' +
-      '<value name="STYLE">' +
-        '<shadow type="motion_setrotationstyle_menu"></shadow>' +
-      '</value>' +
-    '</block>' +
-    '<block type="motion_xposition"></block>' +
-    '<block type="motion_yposition"></block>' +
-    '<block type="motion_direction"></block>' +
-  '</category>' +
-  '<category name="Looks" colour="#9966FF" secondaryColour="#774DCB">' +
-    '<block type="looks_sayforsecs">' +
-      '<value name="MESSAGE">' +
-        '<shadow type="text">' +
-          '<field name="TEXT">Hello!</field>' +
-        '</shadow>' +
-      '</value>' +
-      '<value name="SECS">' +
-        '<shadow type="math_number">' +
-          '<field name="NUM">2</field>' +
-        '</shadow>' +
-      '</value>' +
-    '</block>' +
-    '<block type="looks_say">' +
-      '<value name="MESSAGE">' +
-        '<shadow type="text">' +
-          '<field name="TEXT">Hello!</field>' +
-        '</shadow>' +
-      '</value>' +
-    '</block>' +
-    '<block type="looks_thinkforsecs">' +
-      '<value name="MESSAGE">' +
-        '<shadow type="text">' +
-          '<field name="TEXT">Hmm...</field>' +
-        '</shadow>' +
-      '</value>' +
-      '<value name="SECS">' +
-        '<shadow type="math_number">' +
-          '<field name="NUM">2</field>' +
-        '</shadow>' +
-      '</value>' +
-    '</block>' +
-    '<block type="looks_think">' +
-      '<value name="MESSAGE">' +
-        '<shadow type="text">' +
-          '<field name="TEXT">Hmm...</field>' +
-        '</shadow>' +
-      '</value>' +
-    '</block>' +
-    '<block type="looks_show"></block>' +
-    '<block type="looks_hide"></block>' +
-    '<block type="looks_switchcostumeto">' +
-      '<value name="COSTUME">' +
-        '<shadow type="looks_costume"></shadow>' +
-      '</value>' +
-    '</block>' +
-    '<block type="looks_nextcostume"></block>' +
-    '<block type="looks_nextbackdrop"></block>' +
-    '<block type="looks_switchbackdropto">' +
-      '<value name="BACKDROP">' +
-        '<shadow type="looks_backdrops"></shadow>' +
-      '</value>' +
-    '</block>' +
-    '<block type="looks_switchbackdroptoandwait">' +
-      '<value name="BACKDROP">' +
-        '<shadow type="looks_backdrops"></shadow>' +
-      '</value>' +
-    '</block>' +
-    '<block type="looks_changeeffectby">' +
-      '<value name="EFFECT">' +
-        '<shadow type="looks_effectmenu"></shadow>' +
-      '</value>' +
-      '<value name="CHANGE">' +
-        '<shadow type="math_number">' +
-          '<field name="NUM">10</field>' +
-        '</shadow>' +
-      '</value>' +
-    '</block>' +
-    '<block type="looks_seteffectto">' +
-      '<value name="EFFECT">' +
-        '<shadow type="looks_effectmenu"></shadow>' +
-      '</value>' +
-      '<value name="VALUE">' +
-        '<shadow type="math_number">' +
-          '<field name="NUM">10</field>' +
-        '</shadow>' +
-      '</value>' +
-    '</block>' +
-    '<block type="looks_cleargraphiceffects"></block>' +
-    '<block type="looks_changesizeby">' +
-      '<value name="CHANGE">' +
-        '<shadow type="math_number">' +
-          '<field name="NUM">10</field>' +
-        '</shadow>' +
-      '</value>' +
-    '</block>' +
-    '<block type="looks_setsizeto">' +
-      '<value name="SIZE">' +
-        '<shadow type="math_number">' +
-          '<field name="NUM">100</field>' +
-        '</shadow>' +
-      '</value>' +
-    '</block>' +
-    '<block type="looks_gotofront"></block>' +
-    '<block type="looks_gobacklayers">' +
-      '<value name="NUM">' +
-        '<shadow type="math_integer">' +
-          '<field name="NUM">1</field>' +
-        '</shadow>' +
-      '</value>' +
-    '</block>' +
-    '<block type="looks_costumeorder"></block>' +
-    '<block type="looks_backdroporder"></block>' +
-    '<block type="looks_backdropname"></block>' +
-    '<block type="looks_size"></block>' +
-  '</category>' +
-  '<category name="Sound" colour="#D65CD6" secondaryColour="#BD42BD">' +
-    '<block type="sound_play">' +
-      '<value name="SOUND_MENU">' +
-        '<shadow type="sound_sounds_menu"></shadow>' +
-      '</value>' +
-    '</block>' +
-    '<block type="sound_playuntildone">' +
-      '<value name="SOUND_MENU">' +
-        '<shadow type="sound_sounds_menu"></shadow>' +
-      '</value>' +
-    '</block>' +
-    '<block type="sound_stopallsounds"></block>' +
-    '<block type="sound_playdrumforbeats">' +
-      '<value name="DRUM">' +
-        '<shadow type="sound_drums_menu"></shadow>' +
-      '</value>' +
-      '<value name="BEATS">' +
-        '<shadow type="math_number">' +
-          '<field name="NUM">0.25</field>' +
-        '</shadow>' +
-      '</value>' +
-    '</block>' +
-    '<block type="sound_restforbeats">' +
-      '<value name="BEATS">' +
-        '<shadow type="math_number">' +
-          '<field name="NUM">0.25</field>' +
-        '</shadow>' +
-      '</value>' +
-    '</block>' +
-    '<block type="sound_playnoteforbeats">' +
-      '<value name="NOTE">' +
-        '<shadow type="math_number">' +
-          '<field name="NUM">60</field>' +
-        '</shadow>' +
-      '</value>' +
-      '<value name="BEATS">' +
-        '<shadow type="math_number">' +
-          '<field name="NUM">0.5</field>' +
-        '</shadow>' +
-      '</value>' +
-    '</block>' +
-    '<block type="sound_setinstrumentto">' +
-      '<value name="INSTRUMENT">' +
-        '<shadow type="sound_instruments_menu"></shadow>' +
-      '</value>' +
-    '</block>' +
-    '<block type="sound_seteffectto">' +
-      '<value name="EFFECT">' +
-        '<shadow type="sound_effects_menu"></shadow>' +
-      '</value>' +
-      '<value name="VALUE">' +
-        '<shadow type="math_number">' +
-          '<field name="NUM">100</field>' +
-        '</shadow>' +
-      '</value>' +
-    '</block>' +
-    '<block type="sound_changeeffectby">' +
-      '<value name="EFFECT">' +
-        '<shadow type="sound_effects_menu"></shadow>' +
-      '</value>' +
-      '<value name="VALUE">' +
-        '<shadow type="math_number">' +
-          '<field name="NUM">10</field>' +
-        '</shadow>' +
-      '</value>' +
-    '</block>' +
-    '<block type="sound_cleareffects"></block>' +
-    '<block type="sound_changevolumeby">' +
-      '<value name="VOLUME">' +
-        '<shadow type="math_number">' +
-          '<field name="NUM">-10</field>' +
-        '</shadow>' +
-      '</value>' +
-    '</block>' +
-    '<block type="sound_setvolumeto">' +
-      '<value name="VOLUME">' +
-        '<shadow type="math_number">' +
-          '<field name="NUM">100</field>' +
-        '</shadow>' +
-      '</value>' +
-    '</block>' +
-    '<block type="sound_volume"></block>' +
-    '<block type="sound_changetempoby">' +
-      '<value name="TEMPO">' +
-        '<shadow type="math_number">' +
-          '<field name="NUM">20</field>' +
-        '</shadow>' +
-      '</value>' +
-    '</block>' +
-    '<block type="sound_settempotobpm">' +
-      '<value name="TEMPO">' +
-        '<shadow type="math_number">' +
-          '<field name="NUM">60</field>' +
-        '</shadow>' +
-      '</value>' +
-    '</block>' +
-    '<block type="sound_tempo"></block>' +
-  '</category>' +
-  '<category name="Pen" colour="#00B295" secondaryColour="#0B8E69">' +
-    '<block type="pen_clear"></block>' +
-    '<block type="pen_stamp"></block>' +
-    '<block type="pen_pendown"></block>' +
-    '<block type="pen_penup"></block>' +
-    '<block type="pen_setpencolortocolor">' +
-      '<value name="COLOR">' +
-        '<shadow type="colour_picker">' +
-        '</shadow>' +
-      '</value>' +
-    '</block>' +
-    '<block type="pen_changepencolorby">' +
-      '<value name="COLOR">' +
-        '<shadow type="math_number">' +
-          '<field name="NUM">10</field>' +
-        '</shadow>' +
-      '</value>' +
-    '</block>' +
-    '<block type="pen_setpencolortonum">' +
-      '<value name="COLOR">' +
-        '<shadow type="math_number">' +
-          '<field name="NUM">0</field>' +
-        '</shadow>' +
-      '</value>' +
-    '</block>' +
-    '<block type="pen_changepenshadeby">' +
-      '<value name="SHADE">' +
-        '<shadow type="math_number">' +
-          '<field name="NUM">10</field>' +
-        '</shadow>' +
-      '</value>' +
-    '</block>' +
-    '<block type="pen_setpenshadeto">' +
-      '<value name="SHADE">' +
-        '<shadow type="math_number">' +
-          '<field name="NUM">50</field>' +
-        '</shadow>' +
-      '</value>' +
-    '</block>' +
-    '<block type="pen_changepensizeby">' +
-      '<value name="SIZE">' +
-        '<shadow type="math_number">' +
-          '<field name="NUM">1</field>' +
-        '</shadow>' +
-      '</value>' +
-    '</block>' +
-    '<block type="pen_setpensizeto">' +
-      '<value name="SIZE">' +
-        '<shadow type="math_number">' +
-          '<field name="NUM">1</field>' +
-        '</shadow>' +
-      '</value>' +
-    '</block>' +
-  '</category>' +
-  '<category name="Data" colour="#FF8C1A" secondaryColour="#DB6E00" custom="VARIABLE">' +
-  '</category>' +
-  '<category name="Lists" colour="#FF8C1A" secondaryColour="#DB6E00">' +
-    '<block type="data_listcontents"></block>' +
-    '<block type="data_addtolist">' +
-      '<value name="ITEM">' +
-        '<shadow type="text">' +
-          '<field name="TEXT">thing</field>' +
-        '</shadow>' +
-      '</value>' +
-    '</block>' +
-    '<block type="data_deleteoflist">' +
-      '<value name="INDEX">' +
-        '<shadow type="data_listindexall">' +
-          '<field name="INDEX">1</field>' +
-        '</shadow>' +
-      '</value>' +
-    '</block>' +
-    '<block type="data_insertatlist">' +
-      '<value name="INDEX">' +
-        '<shadow type="data_listindexrandom">' +
-          '<field name="INDEX">1</field>' +
-        '</shadow>' +
-      '</value>' +
-      '<value name="ITEM">' +
-        '<shadow type="text">' +
-          '<field name="TEXT">thing</field>' +
-        '</shadow>' +
-      '</value>' +
-    '</block>' +
-    '<block type="data_replaceitemoflist">' +
-      '<value name="INDEX">' +
-        '<shadow type="data_listindexrandom">' +
-          '<field name="INDEX">1</field>' +
-        '</shadow>' +
-      '</value>' +
-      '<value name="ITEM">' +
-        '<shadow type="text">' +
-          '<field name="TEXT">thing</field>' +
-        '</shadow>' +
-      '</value>' +
-    '</block>' +
-    '<block type="data_itemoflist">' +
-      '<value name="INDEX">' +
-        '<shadow type="data_listindexrandom">' +
-          '<field name="INDEX">1</field>' +
-        '</shadow>' +
-      '</value>' +
-    '</block>' +
-    '<block type="data_lengthoflist"></block>' +
-    '<block type="data_listcontainsitem">' +
-      '<value name="ITEM">' +
-        '<shadow type="text">' +
-          '<field name="TEXT">thing</field>' +
-        '</shadow>' +
-      '</value>' +
-    '</block>' +
-    '<block type="data_showlist"></block>' +
-    '<block type="data_hidelist"></block>' +
-  '</category>' +
-  '<category name="Events" colour="#FFD500" secondaryColour="#CC9900">' +
-    '<block type="event_whenflagclicked"></block>' +
-    '<block type="event_whenkeypressed">' +
-    '</block>' +
-    '<block type="event_whenthisspriteclicked"></block>' +
-    '<block type="event_whenbackdropswitchesto">' +
-    '</block>' +
-    '<block type="event_whengreaterthan">' +
-      '<value name="VALUE">' +
-        '<shadow type="math_number">' +
-          '<field name="NUM">10</field>' +
-        '</shadow>' +
-      '</value>' +
-    '</block>' +
-    '<block type="event_whenbroadcastreceived">' +
-    '</block>' +
-    '<block type="event_broadcast">' +
-      '<value name="BROADCAST_OPTION">' +
-        '<shadow type="event_broadcast_menu"></shadow>' +
-      '</value>' +
-    '</block>' +
-    '<block type="event_broadcastandwait">' +
-      '<value name="BROADCAST_OPTION">' +
-        '<shadow type="event_broadcast_menu"></shadow>' +
-      '</value>' +
-    '</block>' +
-  '</category>' +
-  '<category name="Control" colour="#FFAB19" secondaryColour="#CF8B17">' +
-    '<block type="control_wait">' +
-      '<value name="DURATION">' +
-        '<shadow type="math_positive_number">' +
-          '<field name="NUM">1</field>' +
-        '</shadow>' +
-      '</value>' +
-    '</block>' +
-    '<block type="control_repeat">' +
-      '<value name="TIMES">' +
-        '<shadow type="math_whole_number">' +
-          '<field name="NUM">10</field>' +
-        '</shadow>' +
-      '</value>' +
-    '</block>' +
-    '<block type="control_forever"></block>' +
-    '<block type="control_if"></block>' +
-    '<block type="control_if_else"></block>' +
-    '<block type="control_wait_until"></block>' +
-    '<block type="control_repeat_until"></block>' +
-    '<block type="control_stop"></block>' +
-    '<block type="control_start_as_clone"></block>' +
-    '<block type="control_create_clone_of">' +
-      '<value name="CLONE_OPTION">' +
-        '<shadow type="control_create_clone_of_menu"></shadow>' +
-      '</value>' +
-    '</block>' +
-    '<block type="control_delete_this_clone"></block>' +
-  '</category>' +
-  '<category name="Sensing" colour="#4CBFE6" secondaryColour="#2E8EB8">' +
-    '<block type="sensing_touchingobject">' +
-      '<value name="TOUCHINGOBJECTMENU">' +
-        '<shadow type="sensing_touchingobjectmenu"></shadow>' +
-      '</value>' +
-    '</block>' +
-    '<block type="sensing_touchingcolor">' +
-      '<value name="COLOR">' +
-        '<shadow type="colour_picker"></shadow>' +
-      '</value>' +
-    '</block>' +
-    '<block type="sensing_coloristouchingcolor">' +
-      '<value name="COLOR">' +
-        '<shadow type="colour_picker"></shadow>' +
-      '</value>' +
-      '<value name="COLOR2">' +
-        '<shadow type="colour_picker"></shadow>' +
-      '</value>' +
-    '</block>' +
-    '<block type="sensing_distanceto">' +
-      '<value name="DISTANCETOMENU">' +
-        '<shadow type="sensing_distancetomenu"></shadow>' +
-      '</value>' +
-    '</block>' +
-    '<block type="sensing_askandwait">' +
-      '<value name="QUESTION">' +
-        '<shadow type="text">' +
-          '<field name="TEXT">What\'s your name?</field>' +
-        '</shadow>' +
-      '</value>' +
-    '</block>' +
-  '<block type="sensing_answer"></block>' +
-  '<block type="sensing_keypressed">' +
-      '<value name="KEY_OPTION">' +
-        '<shadow type="sensing_keyoptions"></shadow>' +
-      '</value>' +
-  '</block>' +
-  '<block type="sensing_mousedown"></block>' +
-  '<block type="sensing_mousex"></block>' +
-  '<block type="sensing_mousey"></block>' +
-  '<block type="sensing_loudness"></block>' +
-  '<block type="sensing_videoon">' +
-      '<value name="VIDEOONMENU1">' +
-        '<shadow type="sensing_videoonmenuone"></shadow>' +
-      '</value>' +
-      '<value name="VIDEOONMENU2">' +
-        '<shadow type="sensing_videoonmenutwo"></shadow>' +
-      '</value>' +
-  '</block>' +
-  '<block type="sensing_videotoggle">' +
-      '<value name="VIDEOTOGGLEMENU">' +
-        '<shadow type="sensing_videotogglemenu"></shadow>' +
-      '</value>' +
-  '</block>' +
-  '<block type="sensing_setvideotransparency">' +
-    '<value name="TRANSPARENCY">' +
-      '<shadow type="math_number">' +
-        '<field name="NUM">50</field>' +
-      '</shadow>' +
-    '</value>' +
-  '</block>' +
-  '<block type="sensing_timer"></block>' +
-  '<block type="sensing_resettimer"></block>' +
-  '<block type="sensing_of">' +
-    '<value name="PROPERTY">' +
-      '<shadow type="sensing_of_property_menu"></shadow>' +
-    '</value>' +
-    '<value name="OBJECT">' +
-      '<shadow type="sensing_of_object_menu"></shadow>' +
-    '</value>' +
-  '</block>' +
-  '<block type="sensing_current">' +
-    '<value name="CURRENTMENU">' +
-      '<shadow type="sensing_currentmenu"></shadow>' +
-    '</value>' +
-  '</block>' +
-  '<block type="sensing_dayssince2000"></block>' +
-  '<block type="sensing_username"></block>' +
-  '</category>' +
-  '<category name="Operators" colour="#40BF4A" secondaryColour="#389438">' +
-    '<block type="operator_add">' +
-      '<value name="NUM1">' +
-        '<shadow type="math_number">' +
-          '<field name="NUM"></field>' +
-        '</shadow>' +
-      '</value>' +
-      '<value name="NUM2">' +
-        '<shadow type="math_number">' +
-          '<field name="NUM"></field>' +
-        '</shadow>' +
-      '</value>' +
-    '</block>' +
-    '<block type="operator_subtract">' +
-      '<value name="NUM1">' +
-        '<shadow type="math_number">' +
-          '<field name="NUM"></field>' +
-        '</shadow>' +
-      '</value>' +
-      '<value name="NUM2">' +
-        '<shadow type="math_number">' +
-          '<field name="NUM"></field>' +
-        '</shadow>' +
-      '</value>' +
-    '</block>' +
-    '<block type="operator_multiply">' +
-      '<value name="NUM1">' +
-        '<shadow type="math_number">' +
-          '<field name="NUM"></field>' +
-        '</shadow>' +
-      '</value>' +
-      '<value name="NUM2">' +
-        '<shadow type="math_number">' +
-          '<field name="NUM"></field>' +
-        '</shadow>' +
-      '</value>' +
-    '</block>' +
-    '<block type="operator_divide">' +
-      '<value name="NUM1">' +
-        '<shadow type="math_number">' +
-          '<field name="NUM"></field>' +
-        '</shadow>' +
-      '</value>' +
-      '<value name="NUM2">' +
-        '<shadow type="math_number">' +
-          '<field name="NUM"></field>' +
-        '</shadow>' +
-      '</value>' +
-    '</block>' +
-    '<block type="operator_random">' +
-      '<value name="FROM">' +
-        '<shadow type="math_number">' +
-          '<field name="NUM">1</field>' +
-        '</shadow>' +
-      '</value>' +
-      '<value name="TO">' +
-        '<shadow type="math_number">' +
-          '<field name="NUM">10</field>' +
-        '</shadow>' +
-      '</value>' +
-    '</block>' +
-    '<block type="operator_lt">' +
-      '<value name="OPERAND1">' +
-        '<shadow type="text">' +
-          '<field name="TEXT"></field>' +
-        '</shadow>' +
-      '</value>' +
-      '<value name="OPERAND2">' +
-        '<shadow type="text">' +
-          '<field name="TEXT"></field>' +
-        '</shadow>' +
-      '</value>' +
-    '</block>' +
-    '<block type="operator_equals">' +
-      '<value name="OPERAND1">' +
-        '<shadow type="text">' +
-          '<field name="TEXT"></field>' +
-        '</shadow>' +
-      '</value>' +
-      '<value name="OPERAND2">' +
-        '<shadow type="text">' +
-          '<field name="TEXT"></field>' +
-        '</shadow>' +
-      '</value>' +
-    '</block>' +
-    '<block type="operator_gt">' +
-      '<value name="OPERAND1">' +
-        '<shadow type="text">' +
-          '<field name="TEXT"></field>' +
-        '</shadow>' +
-      '</value>' +
-      '<value name="OPERAND2">' +
-        '<shadow type="text">' +
-          '<field name="TEXT"></field>' +
-        '</shadow>' +
-      '</value>' +
-    '</block>' +
-    '<block type="operator_and"></block>' +
-    '<block type="operator_or"></block>' +
-    '<block type="operator_not"></block>' +
-    '<block type="operator_join">' +
-      '<value name="STRING1">' +
-        '<shadow type="text">' +
-          '<field name="TEXT">hello</field>' +
-        '</shadow>' +
-      '</value>' +
-      '<value name="STRING2">' +
-        '<shadow type="text">' +
-          '<field name="TEXT">world</field>' +
-        '</shadow>' +
-      '</value>' +
-    '</block>' +
-    '<block type="operator_letter_of">' +
-      '<value name="LETTER">' +
-        '<shadow type="math_whole_number">' +
-          '<field name="NUM">1</field>' +
-        '</shadow>' +
-      '</value>' +
-      '<value name="STRING">' +
-        '<shadow type="text">' +
-          '<field name="TEXT">world</field>' +
-        '</shadow>' +
-      '</value>' +
-    '</block>' +
-    '<block type="operator_length">' +
-      '<value name="STRING">' +
-        '<shadow type="text">' +
-          '<field name="TEXT">world</field>' +
-        '</shadow>' +
-      '</value>' +
-    '</block>' +
-    '<block type="operator_mod">' +
-      '<value name="NUM1">' +
-        '<shadow type="math_number">' +
-          '<field name="NUM"></field>' +
-        '</shadow>' +
-      '</value>' +
-      '<value name="NUM2">' +
-        '<shadow type="math_number">' +
-          '<field name="NUM"></field>' +
-        '</shadow>' +
-      '</value>' +
-    '</block>' +
-    '<block type="operator_round">' +
-      '<value name="NUM">' +
-        '<shadow type="math_number">' +
-          '<field name="NUM"></field>' +
-        '</shadow>' +
-      '</value>' +
-    '</block>' +
-    '<block type="operator_mathop">' +
-      '<value name="OPERATOR">' +
-        '<shadow type="operator_mathop_menu"></shadow>' +
-      '</value>' +
-      '<value name="NUM">' +
-        '<shadow type="math_number">' +
-          '<field name="NUM"></field>' +
-        '</shadow>' +
-      '</value>' +
-    '</block>' +
-  '</category>' +
-  '<category name="More Blocks" colour="#FF6680" secondaryColour="#FF3355" custom="PROCEDURE"></category>' +
-  '</xml>';
-var simple = '<xml id="toolbox-simple" style="display: none">' +
-    '<block type="motion_movesteps">' +
-      '<value name="STEPS">' +
-        '<shadow type="math_number">' +
-          '<field name="NUM">10</field>' +
-        '</shadow>' +
-      '</value>' +
-    '</block>' +
-    '<block type="motion_turnright">' +
-      '<value name="DEGREES">' +
-        '<shadow type="math_number">' +
-          '<field name="NUM">15</field>' +
-        '</shadow>' +
-      '</value>' +
-    '</block>' +
-    '<block type="motion_turnleft">' +
-      '<value name="DEGREES">' +
-        '<shadow type="math_number">' +
-          '<field name="NUM">15</field>' +
-        '</shadow>' +
-      '</value>' +
-    '</block>' +
-    '<block type="motion_pointindirection">' +
-      '<value name="DIRECTION">' +
-        '<shadow type="math_angle">' +
-          '<field name="NUM">90</field>' +
-        '</shadow>' +
-      '</value>' +
-    '</block>' +
-    '<block type="motion_pointtowards">' +
-      '<value name="TOWARDS">' +
-        '<shadow type="motion_pointtowards_menu">' +
-        '</shadow>' +
-      '</value>' +
-    '</block>' +
-    '<block type="motion_gotoxy">' +
-      '<value name="X">' +
-        '<shadow type="math_number">' +
-          '<field name="NUM">0</field>' +
-        '</shadow>' +
-      '</value>' +
-      '<value name="Y">' +
-        '<shadow type="math_number">' +
-          '<field name="NUM">0</field>' +
-        '</shadow>' +
-      '</value>' +
-    '</block>' +
-    '<block type="motion_goto">' +
-      '<value name="TO">' +
-        '<shadow type="motion_goto_menu">' +
-        '</shadow>' +
-      '</value>' +
-    '</block>' +
-    '<block type="motion_glidesecstoxy">' +
-      '<value name="SECS">' +
-        '<shadow type="math_number">' +
-          '<field name="NUM">1</field>' +
-        '</shadow>' +
-      '</value>' +
-      '<value name="X">' +
-        '<shadow type="math_number">' +
-          '<field name="NUM">0</field>' +
-        '</shadow>' +
-      '</value>' +
-      '<value name="Y">' +
-        '<shadow type="math_number">' +
-          '<field name="NUM">0</field>' +
-        '</shadow>' +
-      '</value>' +
-    '</block>' +
-    '<block type="motion_changexby">' +
-      '<value name="DX">' +
-        '<shadow type="math_number">' +
-          '<field name="NUM">10</field>' +
-        '</shadow>' +
-      '</value>' +
-    '</block>' +
-    '<block type="motion_setx">' +
-      '<value name="X">' +
-        '<shadow type="math_number">' +
-          '<field name="NUM">0</field>' +
-        '</shadow>' +
-      '</value>' +
-    '</block>' +
-    '<block type="motion_changeyby">' +
-      '<value name="DY">' +
-        '<shadow type="math_number">' +
-          '<field name="NUM">10</field>' +
-        '</shadow>' +
-      '</value>' +
-    '</block>' +
-    '<block type="motion_sety">' +
-      '<value name="Y">' +
-        '<shadow type="math_number">' +
-          '<field name="NUM">0</field>' +
-        '</shadow>' +
-      '</value>' +
-    '</block>' +
-    '<block type="motion_ifonedgebounce"></block>' +
-    '<block type="motion_setrotationstyle">' +
-      '<value name="STYLE">' +
-        '<shadow type="motion_setrotationstyle_menu"></shadow>' +
-      '</value>' +
-    '</block>' +
-    '<block type="motion_xposition"></block>' +
-    '<block type="motion_yposition"></block>' +
-    '<block type="motion_direction"></block>' +
-'</xml>';
-var empty = '<xml id="toolbox-simple" style="display: none"></xml>';
-module.exports = {
-    categories: jsdom(categories).body.firstElementChild,
-    simple: jsdom(simple).body.firstElementChild,
-    empty: jsdom(empty).body.firstElementChild
-};
diff --git a/test/unit/util_filter-toolbox.js b/test/unit/util_filter-toolbox.js
deleted file mode 100644
index 9c3ea073c..000000000
--- a/test/unit/util_filter-toolbox.js
+++ /dev/null
@@ -1,22 +0,0 @@
-var toolboxes = require('../fixtures/toolboxes');
-var test = require('tap').test;
-var filterToolbox = require('../../src/util/filter-toolbox');
-
-test('categories', function (t) {
-    var filteredToolbox = filterToolbox(toolboxes.categories, ['motion_movesteps']);
-    t.strictEqual(filteredToolbox.children.length, 3);
-    t.strictEqual(filteredToolbox.firstElementChild.children.length, 1);
-    t.end();
-});
-
-test('simple', function (t) {
-    var filteredToolbox = filterToolbox(toolboxes.simple, ['motion_movesteps']);
-    t.strictEqual(filteredToolbox.children.length, 1);
-    t.end();
-});
-
-test('empty', function (t) {
-    var filteredToolbox = filterToolbox(toolboxes.empty, ['motion_movesteps']);
-    t.strictEqual(filteredToolbox.children.length, 0);
-    t.end();
-});