cesium/packages/engine/Specs/DataSources/CallbackPropertySpec.js

82 lines
2.6 KiB
JavaScript

import { JulianDate, CallbackProperty } from "../../index.js";
describe("DataSources/CallbackProperty", function () {
let time;
beforeEach(function () {
time = JulianDate.now();
});
it("callback received proper parameters", function () {
const result = {};
const callback = jasmine.createSpy("callback");
const property = new CallbackProperty(callback, true);
property.getValue(time, result);
expect(callback).toHaveBeenCalledWith(time, result);
});
it("getValue returns callback result", function () {
const result = {};
const callback = function (time, result) {
return result;
};
const property = new CallbackProperty(callback, true);
expect(property.getValue(time, result)).toBe(result);
});
it("getValue uses JulianDate.now() if time parameter is undefined", function () {
spyOn(JulianDate, "now").and.callThrough();
const result = "some time independent result";
const callback = function (_time, _result) {
return result;
};
const property = new CallbackProperty(callback, true);
const actualResult = property.getValue();
expect(JulianDate.now).toHaveBeenCalled();
expect(actualResult).toBe(result);
});
it("isConstant returns correct value", function () {
const property = new CallbackProperty(function () {}, true);
expect(property.isConstant).toBe(true);
property.setCallback(function () {}, false);
expect(property.isConstant).toBe(false);
});
it("setCallback raises definitionChanged event", function () {
const property = new CallbackProperty(function () {}, true);
const listener = jasmine.createSpy("listener");
property.definitionChanged.addEventListener(listener);
property.setCallback(function () {}, false);
expect(listener).toHaveBeenCalledWith(property);
});
it("constructor throws with undefined isConstant", function () {
expect(function () {
return new CallbackProperty(function () {}, undefined);
}).toThrowDeveloperError();
});
it("constructor throws with undefined callback", function () {
expect(function () {
return new CallbackProperty(undefined, true);
}).toThrowDeveloperError();
});
it("equals works", function () {
const callback = function () {};
const left = new CallbackProperty(callback, true);
const right = new CallbackProperty(callback, true);
expect(left.equals(right)).toEqual(true);
right.setCallback(callback, false);
expect(left.equals(right)).toEqual(false);
right.setCallback(function () {
return undefined;
}, true);
expect(left.equals(right)).toEqual(false);
});
});