diff -r efd9c589177a -r c0b4a8b5a012 toolkit/javascript/d3/test/core/transition-test.js
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/toolkit/javascript/d3/test/core/transition-test.js	Thu Apr 10 14:20:23 2014 +0200
@@ -0,0 +1,66 @@
+require("../env");
+require("../../d3");
+
+var vows = require("vows"),
+    assert = require("assert");
+
+var suite = vows.describe("d3.transition");
+
+suite.addBatch({
+  "transition": {
+    topic: function() {
+      return d3.transition();
+    },
+    "selects the document": function(transition) {
+      assert.domEqual(transition[0][0].node, document);
+    },
+    "is an instanceof d3.transition": function(transition) {
+      assert.isTrue(transition instanceof d3.transition);
+    },
+    "subselections are also instanceof d3.transition": function(transition) {
+      assert.isTrue(transition.select("body") instanceof d3.transition);
+      assert.isTrue(transition.selectAll("body") instanceof d3.transition);
+    },
+    "transition prototype can be extended": function(transition) {
+      var vv = [];
+      d3.transition.prototype.foo = function(v) { vv.push(v); return this; };
+      transition.select("body").foo(42);
+      assert.deepEqual(vv, [42]);
+      delete d3.transition.prototype.foo;
+    }
+  }
+});
+
+suite.export(module);
+
+var suite = vows.describe("transition");
+
+suite.addBatch({
+
+  // Subtransitions
+  "select": require("./transition-test-select"),
+  "selectAll": require("./transition-test-selectAll"),
+  "transition": require("./transition-test-transition"),
+
+  // Content
+  "attr": require("./transition-test-attr"),
+  "attrTween": require("./transition-test-attrTween"),
+  "style": require("./transition-test-style"),
+  "styleTween": require("./transition-test-styleTween"),
+  "text": require("./transition-test-text"),
+  "remove": require("./transition-test-remove"),
+
+  // Animation
+  "delay": require("./transition-test-delay"),
+  "duration": require("./transition-test-duration"),
+
+  // Control
+  "each": require("./transition-test-each"),
+  "call": require("./transition-test-call"),
+  "tween": require("./transition-test-tween"),
+  "id": require("./transition-test-id"),
+  "time": require("./transition-test-time")
+
+});
+
+suite.export(module);