Modularized panels

scripts/node_modules/random-weighted-choice/test/test.js

@@ -0,0 +1,66 @@
+/*jshint node:true, laxcomma:true */
+/*global describe:true, it:true */
+"use strict";
+
+var debug = require('debug')('rwc:test');
+var assert = require('assert');
+
+var rwc = require('../lib/random-weighted-choice');
+
+var randomCounter = 0;
+var randomValues = [0,0.19,0.5,0.7,0.9];
+var randomMock = function(values, reset) {
+  if(typeof(values)=="undefined") values = randomValues;
+  if (typeof(reset)=="undefined") reset = false;
+  if (reset) randomCounter = 0;
+  return values[randomCounter++];
+};
+
+
+describe('Temperature 50', function () {
+  var table = [
+        { weight: 1, id: "item1"} // Element 1
+      , { weight: 1, id: "item2"} // Element 2
+      , { weight: 4, id: "item3"} // Element with a 4 times likelihood
+      , { weight: 2, id: "item4"} // Element 4
+      , { weight: 2, id: "item5"}
+    ];
+
+  it('should return "item1"', function (){
+    assert.equal('item1', rwc(table,null,randomMock));
+  });
+  it('should return "item2"', function (){
+    assert.equal('item2', rwc(table,null,randomMock));
+  });
+  it('should return "item3"', function (){
+    assert.equal('item3', rwc(table,null,randomMock));
+  });
+  it('should return "item4"', function (){
+    assert.equal('item4', rwc(table,null,randomMock));
+  });
+  it('should return "item5"', function (){
+    assert.equal('item5', rwc(table,null,randomMock));
+  });
+});
+
+
+describe('Empty table', function () {
+  it('should return null', function () {
+    assert.equal(null, rwc([]));
+  });
+});
+
+
+describe('One element', function () {
+  it('should return the element', function () {
+    assert.equal('a', rwc([{weight:1, id: 'a'}]));
+  });
+});
+
+describe('No weight', function () {
+  it('should return null', function () {
+    assert.equal(null, rwc([{weight:0, id: 'a'}]));
+  });
+});
+
+module.exports.random = randomMock;