128 строки
5.1 KiB
JavaScript
128 строки
5.1 KiB
JavaScript
require("../env");
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var vows = require("vows"),
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assert = require("assert");
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var suite = vows.describe("selection.selectAll");
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suite.addBatch({
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"select(body)": {
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topic: function() {
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var body = d3.select("body").html("");
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if ("__data__" in body[0][0]) delete body[0][0].__data__;
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body.append("div").attr("class", "first");
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body.append("div").attr("class", "second");
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return body;
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},
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"selects all matching elements": function(body) {
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var div = body.selectAll("div");
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assert.isTrue(div[0][0] === document.body.firstChild);
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assert.isTrue(div[0][1] === document.body.lastChild);
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assert.equal(div.length, 1);
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assert.equal(div[0].length, 2);
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},
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"propagates parent node to the selected elements": function(body) {
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var div = body.selectAll("div");
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assert.isNotNull(div[0].parentNode);
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assert.isTrue(div[0].parentNode === document.body);
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},
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"does not propagate data if data was specified": function(body) {
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var div = body.data([new Object()]).selectAll("div");
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assert.isUndefined(div[0][0].__data__);
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assert.isUndefined(div[0][1].__data__);
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},
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"does not propagate data if data was not specified": function(body) {
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var div = body.selectAll("div").data([1, 2]);
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div = body.data([new Object()]).selectAll("div");
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assert.equal(div[0][0].__data__, 1);
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assert.equal(div[0][1].__data__, 2);
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},
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"returns empty array if no match is found": function(body) {
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var span = body.selectAll("span");
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assert.equal(span.length, 1);
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assert.equal(span[0].length, 0);
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},
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"can select via function": function(body) {
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var d = {}, dd = [], ii = [], tt = [],
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s = body.data([d]).selectAll(function(d, i) { dd.push(d); ii.push(i); tt.push(this); return this.childNodes; });
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assert.deepEqual(dd, [d], "expected data, got {actual}");
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assert.deepEqual(ii, [0], "expected index, got {actual}");
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assert.domEqual(tt[0], document.body, "expected this, got {actual}");
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assert.domEqual(s[0][0], document.body.firstChild);
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assert.domEqual(s[0][1], document.body.lastChild);
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delete document.body.__data__;
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}
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}
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});
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suite.addBatch({
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"selectAll(div)": {
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topic: function() {
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var div = d3.select("body").html("").selectAll("div").data(d3.range(2)).enter().append("div");
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div.append("span").attr("class", "first");
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div.append("span").attr("class", "second");
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return div;
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},
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"selects all matching elements": function(div) {
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var span = div.selectAll("span");
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assert.equal(span.length, 2);
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assert.equal(span[0].length, 2);
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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][0]);
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assert.isTrue(span[1][0].parentNode === div[0][1]);
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assert.isTrue(span[1][1].parentNode === div[0][1]);
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},
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"propagates parent node to the selected elements": function(div) {
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var span = div.selectAll("span");
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assert.isNotNull(span[0].parentNode);
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assert.isTrue(span[0].parentNode === div[0][0]);
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assert.isTrue(span[1].parentNode === div[0][1]);
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},
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"does not propagate data if data was specified": function(div) {
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var span = div.selectAll("span");
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delete span[0][0].__data__;
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delete span[0][1].__data__;
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span = div.data([new Object(), new Object()]).selectAll("span");
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assert.isUndefined(span[0][0].__data__);
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assert.isUndefined(span[0][1].__data__);
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},
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"does not propagate data if data was not specified": function(div) {
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var a = new Object(), b = new Object(), span = div.selectAll("span").data([a, b]);
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delete div[0][0].__data__;
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delete div[0][1].__data__;
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span = div.selectAll("span");
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assert.equal(span[0][0].__data__, a);
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assert.equal(span[0][1].__data__, b);
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},
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"returns empty array if no match is found": function(div) {
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var div = div.selectAll("div");
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assert.equal(div.length, 2);
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assert.equal(div[0].length, 0);
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assert.equal(div[1].length, 0);
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},
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"ignores null nodes": function(div) {
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var some = d3.selectAll("div");
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some[0][1] = null;
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var span = some.selectAll("span");
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assert.equal(span.length, 1);
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assert.equal(span[0].length, 2);
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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][0]);
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},
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"can select via function": function(div) {
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var dd = [], ii = [], tt = [],
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s = div.data(["a", "b"]).selectAll(function(d, i) { dd.push(d); ii.push(i); tt.push(this); return this.childNodes; });
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assert.deepEqual(dd, ["a", "b"], "expected data, got {actual}");
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assert.deepEqual(ii, [0, 1], "expected index, got {actual}");
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assert.domEqual(tt[0], div[0][0], "expected this, got {actual}");
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assert.domEqual(tt[1], div[0][1], "expected this, got {actual}");
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assert.domEqual(s[0][0], div[0][0].firstChild);
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assert.domEqual(s[0][1], div[0][0].lastChild);
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assert.domEqual(s[1][0], div[0][1].firstChild);
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assert.domEqual(s[1][1], div[0][1].lastChild);
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}
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}
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});
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suite.export(module);
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