3
var vows = require("vows"),
4
assert = require("assert");
6
var suite = vows.describe("selection.append");
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return d3.select("body").html("");
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"appends an HTML element": function(body) {
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var div = body.append("div");
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assert.equal(div[0][0].tagName, "DIV");
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assert.isNull(div[0][0].namespaceURI);
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assert.isTrue(div[0][0].parentNode === document.body);
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assert.isTrue(div[0][0] === document.body.lastChild);
20
"appends an SVG element": function(body) {
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var svg = body.append("svg:svg");
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assert.equal(svg[0][0].tagName, "SVG");
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assert.equal(svg[0][0].namespaceURI, "http://www.w3.org/2000/svg");
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assert.isTrue(svg[0][0].parentNode === document.body);
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assert.isTrue(svg[0][0] === document.body.lastChild);
27
"propagates data to new element": function(body) {
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var data = new Object(), div = body.data([data]).append("div");
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assert.strictEqual(div[0][0].__data__, data);
31
"returns a new selection": function(body) {
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assert.isFalse(body.append("div") === body);
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"inherits namespace from parent node": function(body) {
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var g = body.append("svg:svg").append("g");
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assert.equal(g[0][0].namespaceURI, "http://www.w3.org/2000/svg");
44
return d3.select("body").html("").selectAll("div").data(d3.range(2)).enter().append("div");
46
"appends an HTML element": function(div) {
47
var span = div.append("span");
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assert.equal(span[0].length, 2);
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assert.equal(span[0][0].tagName, "SPAN");
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assert.equal(span[0][1].tagName, "SPAN");
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assert.isNull(span[0][0].namespaceURI);
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assert.isNull(span[0][1].namespaceURI);
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assert.isTrue(span[0][0].parentNode === div[0][0]);
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assert.isTrue(span[0][1].parentNode === div[0][1]);
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assert.isTrue(div[0][0].lastChild === span[0][0]);
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assert.isTrue(div[0][1].lastChild === span[0][1]);
58
"appends an SVG element": function(div) {
59
var svg = div.append("svg:svg");
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assert.equal(svg[0].length, 2);
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assert.equal(svg[0][0].tagName, "SVG");
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assert.equal(svg[0][1].tagName, "SVG");
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assert.equal(svg[0][0].namespaceURI, "http://www.w3.org/2000/svg");
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assert.equal(svg[0][1].namespaceURI, "http://www.w3.org/2000/svg");
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assert.isTrue(svg[0][0].parentNode === div[0][0]);
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assert.isTrue(svg[0][1].parentNode === div[0][1]);
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assert.isTrue(div[0][0].lastChild === svg[0][0]);
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assert.isTrue(div[0][1].lastChild === svg[0][1]);
70
"ignores null nodes": function(div) {
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var some = d3.selectAll("div");
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var span = some.append("span");
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assert.equal(span[0].length, 2);
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assert.equal(span[0][0].tagName, "SPAN");
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assert.isNull(span[0][1]);
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assert.isTrue(span[0][0].parentNode === div[0][0]);
79
assert.isTrue(div[0][0].lastChild === span[0][0]);
80
assert.isNull(div[0][1].lastChild);
82
"propagates data to new elements": function(div) {
83
var a = new Object(), b = new Object(), span = div.data([a, b]).append("span");
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assert.strictEqual(span[0][0].__data__, a);
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assert.strictEqual(span[0][1].__data__, b);
87
"returns a new selection": function(div) {
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assert.isFalse(div.append("div") === div);
94
"selectAll(div).data(…).enter()": {
96
return d3.select("body");
98
"appends to the parent node": function(body) {
99
var div = body.html("").selectAll("div").data(d3.range(2)).enter().append("div");
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assert.equal(div.length, 1);
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assert.equal(div[0].length, 2);
102
assert.domEqual(div[0][0].parentNode, document.body);
103
assert.domEqual(div[0][1].parentNode, document.body);
105
"propagates data to new elements": function(body) {
106
var a = new Object(), b = new Object(), div = body.html("").selectAll("div").data([a, b]).enter().append("div");
107
assert.strictEqual(div[0][0].__data__, a);
108
assert.strictEqual(div[0][1].__data__, b);
110
"ignores null nodes": function(body) {
111
body.html("").append("div");
112
var div = body.selectAll("div").data(d3.range(3)).enter().append("div");
113
assert.equal(div.length, 1);
114
assert.equal(div[0].length, 3);
115
assert.domNull(div[0][0]);
116
assert.domEqual(div[0][1].parentNode, document.body);
117
assert.domEqual(div[0][2].parentNode, document.body);
122
suite.export(module);