test(unit tests): Start refactoring the unit tests

The final goal is to split tests in several files

tests/spec/utils.js

+var module = angular.module('test-helper', ['rzModule', 'appTemplates']);
+
+module.factory('TestHelper', function(RzSlider, RzSliderOptions, $rootScope, $compile, $timeout, $window, $document) {
+  var h = {
+    RzSlider: RzSlider,
+    RzSliderOptions: RzSliderOptions,
+    $rootScope: $rootScope,
+    $compile: $compile,
+    $timeout: $timeout,
+    $window: $window,
+    $document: $document
+  };
+
+  h.createSlider = function(sliderObj) {
+    var template = '';
+    if (sliderObj.options)
+      template = '<rzslider rz-slider-model="slider.value" rz-slider-options="slider.options"></rzslider>';
+    else
+      template = '<rzslider rz-slider-model="slider.value"></rzslider>';
+    h.initSlider(sliderObj, template);
+  };
+
+  h.createRangeSlider = function(sliderObj) {
+    var template = '';
+    if (sliderObj.options)
+      template = '<rzslider rz-slider-model="slider.min" rz-slider-high="slider.max"' +
+        'rz-slider-options="slider.options"></rzslider>';
+    else
+      template = '<rzslider rz-slider-model="slider.min" rz-slider-high="slider.max"></rzslider>';
+    h.initSlider(sliderObj, template);
+  };
+
+  h.initSlider = function(sliderObj, template) {
+    h.scope = $rootScope.$new();
+    h.scope.slider = sliderObj;
+    h.parent = angular.element('<div style="width: 1000px; height:1000px;"></div>');
+    h.element = $compile(template)(h.scope);
+    h.parent.append(h.element);
+    angular.element(document).find('body').append(h.parent);
+    h.scope.$digest();
+    h.slider = h.element.isolateScope().slider;
+  };
+
+  h.clean = function() {
+    //simulate to $destroy event to clean everything
+    if (h.scope)
+      h.scope.$broadcast('$destroy');
+    //clean the element we append at each test
+    if (h.parent)
+      h.parent.remove();
+  };
+
+
+  h.fireMousedown = function(element, position, vertical) {
+    var positionProp = vertical ? 'clientY' : 'clientX';
+    var event = {
+      type: 'mousedown',
+      preventDefault: sinon.stub(),
+      stopPropagation: sinon.stub()
+    };
+    event[positionProp] = position;
+
+    element.triggerHandler(event);
+    return event;
+  };
+
+  h.fireMousemove = function(position, vertical) {
+    var positionProp = vertical ? 'clientY' : 'clientX';
+    var event = {
+      type: 'mousemove'
+    };
+    event[positionProp] = position;
+
+    $document.triggerHandler(event);
+  };
+
+  h.fireMouseup = function() {
+    var event = {
+      type: 'mouseup'
+    };
+    $document.triggerHandler(event);
+  };
+
+  h.pressKeydown = function(element, key, oldAPI) {
+    key = key.toUpperCase();
+    var event = {
+      type: 'keydown'
+    };
+    var keys = {
+      'UP': 38,
+      'DOWN': 40,
+      'LEFT': 37,
+      'RIGHT': 39,
+      'PAGEUP': 33,
+      'PAGEDOWN': 34,
+      'HOME': 36,
+      'END': 35,
+      'SPACE': 32
+    };
+    var keyCode = keys[key];
+    if (oldAPI)
+      event.which = keyCode;
+    else event.keyCode = keyCode;
+    element.triggerHandler(event);
+  };
+
+  return h;
+});