require("../env");

require("../../d3");

var assert = require("assert");

module.exports = {

  topic: function() {

    return d3.select("body").append("div").text("foo").transition().text("bar");

  },

  "sets the text tween": function(div) {

    assert.typeOf(div.tween("text"), "function");

  },

  "start": {

    topic: function(div) {

      var cb = this.callback,

          tween = div.tween("text");

      div.tween("text", function() {

        var result = tween.apply(this, arguments);

        cb(null, {transition: div, tween: result});

        return result;

      });

    },

    "sets the text content as a string": function(result) {

      assert.equal(result.transition[0][0].node.textContent, "bar");

    },

    "does not interpolate text": function(result) {

      assert.isTrue(!result.tween);

    }

  }

};