require("../env");

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

var vows = require("vows"),

    assert = require("assert");

var suite = vows.describe("selection.remove");

suite.addBatch({

  "select(body)": {

    topic: function() {

      return d3.select("body");

    },

    "removes the matching elements": function(body) {

      var div = body.append("div");

      div.remove();

      assert.domNull(div[0][0].parentNode);

    },

    "does not remove non-matching elements": function(body) {

      var div1 = body.append("div"), div2 = body.append("div");

      div1.remove();

      assert.domEqual(div2[0][0].parentNode, document.body);

    },

    "ignores null nodes": function(body) {

      var div = body.html("").selectAll("div").data([0, 1]).enter().append("div"),

          some = d3.selectAll("div");

      some[0][0] = null;

      some.remove();

      assert.domEqual(div[0][0].parentNode, document.body);

      assert.domNull(div[0][1].parentNode);

    },

    "returns the current selection": function(body) {

      var div = body.append("div");

      assert.isTrue(div.remove() === div);

    }

  }

});

suite.export(module);