49 строки
1.8 KiB
JavaScript
49 строки
1.8 KiB
JavaScript
require("../env");
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var assert = require("assert");
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module.exports = {
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topic: function() {
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var cb = this.callback;
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var s = d3.select("body").append("div")
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.style("background-color", "white")
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.style("color", "red")
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.style("display", "none")
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.style("font-size", "20px");
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var t = s.transition()
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.style("display", null)
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.style("font-size", function() { return null; })
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.style("display", null)
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.style("background-color", "green")
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.style("background-color", "red")
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.style("color", function() { return "green"; }, "important")
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.each("end", function() { cb(null, {selection: s, transition: t}); });
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},
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"defines the corresponding style tween": function(result) {
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assert.typeOf(result.transition.tween("style.background-color"), "function");
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assert.typeOf(result.transition.tween("style.color"), "function");
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},
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"the last style operator takes precedence": function(result) {
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assert.equal(result.selection.style("background-color"), "#ff0000");
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},
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"sets a property as a string": function(result) {
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assert.equal(result.selection.style("background-color"), "#ff0000");
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},
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"sets a property as a function": function(result) {
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assert.equal(result.selection.style("color"), "#008000");
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},
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"observes the specified priority": function(result) {
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var style = result.selection.node().style;
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assert.equal(style.getPropertyPriority("background-color"), "");
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assert.equal(style.getPropertyPriority("color"), "important");
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},
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"removes a property using a constant null": function(result) {
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assert.equal(result.selection.style("display"), "");
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},
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"removes a property using a function null": function(result) {
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assert.equal(result.selection.style("font-size"), "");
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}
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};
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