47 строки
1.0 KiB
JavaScript
47 строки
1.0 KiB
JavaScript
require("../env");
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require("../../d3");
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require("../../d3.layout");
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var vows = require("vows"),
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assert = require("assert");
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var suite = vows.describe("d3.layout.tree");
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suite.addBatch({
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"tree": {
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topic: d3.layout.tree,
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"can handle an empty children array": function(tree) {
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assert.deepEqual(tree.nodes({children: []}).map(layout), [
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{depth: 0, x: 0.5, y: 0}
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]);
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assert.deepEqual(tree.nodes({children: [
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{children: []},
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{children: [{}]},
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{children: [{}]}
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]}).map(layout), [
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{depth: 0, x: .5, y: 0},
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{depth: 1, x: .125, y: 0.5},
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{depth: 1, x: .375, y: 0.5},
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{depth: 2, x: .375, y: 1},
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{depth: 1, x: .875, y: 0.5},
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{depth: 2, x: .875, y: 1}
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]);
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},
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"can handle a single node": function(tree) {
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assert.deepEqual(tree.nodes({value: 0}).map(layout), [
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{depth: 0, x: 0.5, y: 0}
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]);
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}
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}
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});
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function layout(node) {
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return {
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depth: node.depth,
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x: node.x,
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y: node.y
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};
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}
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suite.export(module);
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