1 require("../env");

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

     3 

     4 var vows = require("vows"),

     5     assert = require("assert");

     6 

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

     8 

     9 suite.addBatch({

    10   "select(body)": {

    11     topic: function() {

    12       return d3.select("body");

    13     },

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

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

    16       div.remove();

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

    18     },

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

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

    21       div1.remove();

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

    23     },

    24     "ignores null nodes": function(body) {

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

    26           some = d3.selectAll("div");

    27       some[0][0] = null;

    28       some.remove();

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

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

    31     },

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

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

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

    35     }

    36   }

    37 });

    38 

    39 suite.export(module);