Add tests to repository

tests/javascript/class.js

@@ -0,0 +1,83 @@
+// base class
+var Animal = Class.create({
+  initialize: function(name) {
+    this.name = name;
+  },
+  name: "",
+  eat: function() {
+    return this.say("Yum!");
+  },
+  say: function(message) {
+    return this.name + ": " + message;
+  }
+});
+
+// subclass that augments a method
+var Cat = Class.create(Animal, {
+  eat: function($super, food) {
+    if (food instanceof Mouse) return $super();
+    else return this.say("Yuk! I only eat mice.");
+  }
+});
+
+// empty subclass
+var Mouse = Class.create(Animal, {});
+
+//mixins
+var Sellable = {
+  getValue: function(pricePerKilo) {
+    return this.weight * pricePerKilo;
+  },
+
+  inspect: function() {
+    return '#<Sellable: #{weight}kg>'.interpolate(this);
+  }
+};
+
+var Reproduceable = {
+  reproduce: function(partner) {
+    if (partner.constructor != this.constructor || partner.sex == this.sex)
+      return null;
+    var weight = this.weight / 10, sex = Math.random(1).round() ? 'male' : 'female';
+    return new this.constructor('baby', weight, sex);
+  }
+};
+
+// base class with mixin
+var Plant = Class.create(Sellable, {
+  initialize: function(name, weight) {
+    this.name = name;
+    this.weight = weight;
+  },
+
+  inspect: function() {
+    return '#<Plant: #{name}>'.interpolate(this);
+  }
+});
+
+// subclass with mixin
+var Dog = Class.create(Animal, Reproduceable, {
+  initialize: function($super, name, weight, sex) {
+    this.weight = weight;
+    this.sex = sex;
+    $super(name);
+  }
+});
+
+// subclass with mixins
+var Ox = Class.create(Animal, Sellable, Reproduceable, {
+  initialize: function($super, name, weight, sex) {
+    this.weight = weight;
+    this.sex = sex;
+    $super(name);
+  },
+
+  eat: function(food) {
+    if (food instanceof Plant)
+      this.weight += food.weight;
+  },
+
+  inspect: function() {
+    return '#<Ox: #{name}>'.interpolate(this);
+  }
+});