/
CesiumWidgetSpec.js
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/
CesiumWidgetSpec.js
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import { Clock } from "../../../Source/Cesium.js";
import { defaultValue } from "../../../Source/Cesium.js";
import { EllipsoidTerrainProvider } from "../../../Source/Cesium.js";
import { ScreenSpaceEventHandler } from "../../../Source/Cesium.js";
import { WebMercatorProjection } from "../../../Source/Cesium.js";
import { Camera } from "../../../Source/Cesium.js";
import { ImageryLayerCollection } from "../../../Source/Cesium.js";
import { Scene } from "../../../Source/Cesium.js";
import { SceneMode } from "../../../Source/Cesium.js";
import { SkyBox } from "../../../Source/Cesium.js";
import { TileCoordinatesImageryProvider } from "../../../Source/Cesium.js";
import DomEventSimulator from "../../DomEventSimulator.js";
import getWebGLStub from "../../getWebGLStub.js";
import pollToPromise from "../../pollToPromise.js";
import { CesiumWidget } from "../../../Source/Cesium.js";
describe(
"Widgets/CesiumWidget/CesiumWidget",
function () {
let container;
let widget;
beforeEach(function () {
container = document.createElement("div");
container.id = "container";
container.style.width = "1px";
container.style.height = "1px";
container.style.overflow = "hidden";
container.style.position = "relative";
document.body.appendChild(container);
});
afterEach(function () {
if (widget && !widget.isDestroyed()) {
widget = widget.destroy();
}
document.body.removeChild(container);
});
function createCesiumWidget(container, options) {
options = defaultValue(options, {});
options.contextOptions = defaultValue(options.contextOptions, {});
options.contextOptions.webgl = defaultValue(
options.contextOptions.webgl,
{}
);
if (!!window.webglStub) {
options.contextOptions.getWebGLStub = getWebGLStub;
}
return new CesiumWidget(container, options);
}
it("can create, render, and destroy", function () {
widget = createCesiumWidget(container);
expect(widget.isDestroyed()).toEqual(false);
expect(widget.container).toBeInstanceOf(HTMLElement);
expect(widget.canvas).toBeInstanceOf(HTMLElement);
expect(widget.creditContainer).toBeInstanceOf(HTMLElement);
expect(widget.creditViewport).toBeInstanceOf(HTMLElement);
expect(widget.scene).toBeInstanceOf(Scene);
expect(widget.imageryLayers).toBeInstanceOf(ImageryLayerCollection);
expect(widget.terrainProvider).toBeInstanceOf(EllipsoidTerrainProvider);
expect(widget.camera).toBeInstanceOf(Camera);
expect(widget.clock).toBeInstanceOf(Clock);
expect(widget.screenSpaceEventHandler).toBeInstanceOf(
ScreenSpaceEventHandler
);
expect(widget.useBrowserRecommendedResolution).toBe(true);
widget.render();
widget.destroy();
expect(widget.isDestroyed()).toEqual(true);
});
it("can pass id string for container", function () {
widget = createCesiumWidget("container");
});
it("sets expected options clock", function () {
const options = {
clock: new Clock(),
};
widget = createCesiumWidget(container, options);
expect(widget.clock).toBe(options.clock);
});
it("can set scene mode 2D", function () {
widget = createCesiumWidget(container, {
sceneMode: SceneMode.SCENE2D,
});
widget.scene.completeMorph();
expect(widget.scene.mode).toBe(SceneMode.SCENE2D);
});
it("can set map projection", function () {
const mapProjection = new WebMercatorProjection();
widget = createCesiumWidget(container, {
mapProjection: mapProjection,
});
expect(widget.scene.mapProjection).toEqual(mapProjection);
});
it("can set scene mode Columbus", function () {
widget = createCesiumWidget(container, {
sceneMode: SceneMode.COLUMBUS_VIEW,
});
widget.scene.completeMorph();
expect(widget.scene.mode).toBe(SceneMode.COLUMBUS_VIEW);
});
it("can disable render loop", function () {
widget = createCesiumWidget(container, {
useDefaultRenderLoop: false,
});
expect(widget.useDefaultRenderLoop).toBe(false);
});
it("can set target frame rate", function () {
widget = createCesiumWidget(container, {
targetFrameRate: 23,
});
expect(widget.targetFrameRate).toBe(23);
});
it("sets expected options imageryProvider", function () {
const options = {
imageryProvider: new TileCoordinatesImageryProvider(),
};
widget = createCesiumWidget(container, options);
const imageryLayers = widget.scene.imageryLayers;
expect(imageryLayers.length).toEqual(1);
expect(imageryLayers.get(0).imageryProvider).toBe(
options.imageryProvider
);
});
it("does not create an ImageryProvider if option is false", function () {
widget = createCesiumWidget(container, {
imageryProvider: false,
});
const imageryLayers = widget.scene.imageryLayers;
expect(imageryLayers.length).toEqual(0);
});
it("sets expected options terrainProvider", function () {
const options = {
terrainProvider: new EllipsoidTerrainProvider(),
};
widget = createCesiumWidget(container, options);
expect(widget.terrainProvider).toBe(options.terrainProvider);
const anotherProvider = new EllipsoidTerrainProvider();
widget.terrainProvider = anotherProvider;
expect(widget.terrainProvider).toBe(anotherProvider);
});
it("does not create a globe if option is false", function () {
widget = createCesiumWidget(container, {
globe: false,
});
expect(widget.scene.globe).not.toBeDefined();
});
it("does not create a skyBox if option is false", function () {
widget = createCesiumWidget(container, {
skyBox: false,
});
expect(widget.scene.skyBox).not.toBeDefined();
});
it("does not create a skyAtmosphere if option is false", function () {
widget = createCesiumWidget(container, {
skyAtmosphere: false,
});
expect(widget.scene.skyAtmosphere).not.toBeDefined();
});
it("sets expected options skyBox", function () {
const options = {
skyBox: new SkyBox({
sources: {
positiveX: "./Data/Images/Blue.png",
negativeX: "./Data/Images/Green.png",
positiveY: "./Data/Images/Blue.png",
negativeY: "./Data/Images/Green.png",
positiveZ: "./Data/Images/Blue.png",
negativeZ: "./Data/Images/Green.png",
},
}),
};
widget = createCesiumWidget(container, options);
expect(widget.scene.skyBox).toBe(options.skyBox);
});
it("can set contextOptions", function () {
const webglOptions = {
alpha: true,
depth: true, //TODO Change to false when https://bugzilla.mozilla.org/show_bug.cgi?id=745912 is fixed.
stencil: true,
antialias: false,
premultipliedAlpha: true, // Workaround IE 11.0.8, which does not honor false.
preserveDrawingBuffer: true,
powerPreference: "low-power",
};
const contextOptions = {
allowTextureFilterAnisotropic: false,
webgl: webglOptions,
};
widget = createCesiumWidget(container, {
contextOptions: contextOptions,
});
const context = widget.scene.context;
const contextAttributes = context._gl.getContextAttributes();
expect(context.options.allowTextureFilterAnisotropic).toEqual(false);
expect(contextAttributes.alpha).toEqual(webglOptions.alpha);
expect(contextAttributes.depth).toEqual(webglOptions.depth);
expect(contextAttributes.stencil).toEqual(webglOptions.stencil);
expect(contextAttributes.antialias).toEqual(webglOptions.antialias);
expect(contextAttributes.premultipliedAlpha).toEqual(
webglOptions.premultipliedAlpha
);
expect(contextAttributes.powerPreference).toEqual(
webglOptions.powerPreference
);
expect(contextAttributes.preserveDrawingBuffer).toEqual(
webglOptions.preserveDrawingBuffer
);
});
it("can disable Order Independent Translucency", function () {
widget = createCesiumWidget(container, {
orderIndependentTranslucency: false,
});
expect(widget.scene.orderIndependentTranslucency).toBe(false);
});
it("can enable requestRenderMode", function () {
widget = createCesiumWidget(container, {
requestRenderMode: true,
});
expect(widget.scene.requestRenderMode).toBe(true);
});
it("can set maximumRenderTimeChange", function () {
widget = createCesiumWidget(container, {
maximumRenderTimeChange: Number.POSITIVE_INFINITY,
});
expect(widget.scene.maximumRenderTimeChange).toBe(
Number.POSITIVE_INFINITY
);
});
it("throws if no container provided", function () {
expect(function () {
return createCesiumWidget(undefined);
}).toThrowDeveloperError();
});
it("throws if targetFrameRate less than 0", function () {
widget = createCesiumWidget(container);
expect(function () {
widget.targetFrameRate = -1;
}).toThrowDeveloperError();
});
it("can set resolutionScale", function () {
widget = createCesiumWidget(container);
widget.resolutionScale = 0.5;
expect(widget.resolutionScale).toBe(0.5);
});
it("can enable useBrowserRecommendedResolution", function () {
widget = createCesiumWidget(container, {
useBrowserRecommendedResolution: true,
});
expect(widget.useBrowserRecommendedResolution).toBe(true);
});
it("useBrowserRecommendedResolution ignores devicePixelRatio", function () {
const oldDevicePixelRatio = window.devicePixelRatio;
window.devicePixelRatio = 2.0;
widget = createCesiumWidget(container, {
useDefaultRenderLoop: false,
});
widget.resolutionScale = 0.5;
widget.useBrowserRecommendedResolution = true;
widget.resize();
expect(widget.scene.pixelRatio).toEqual(0.5);
widget.useBrowserRecommendedResolution = false;
widget.resize();
expect(widget.scene.pixelRatio).toEqual(1.0);
window.devicePixelRatio = oldDevicePixelRatio;
});
it("throws if resolutionScale is less than 0", function () {
widget = createCesiumWidget(container);
expect(function () {
widget.resolutionScale = -1;
}).toThrowDeveloperError();
});
it("resizing triggers a render in requestRender mode", function () {
widget = createCesiumWidget(container, {
requestRenderMode: true,
maximumRenderTimeChange: Number.POSITIVE_INFINITY,
});
const scene = widget._scene;
spyOn(scene, "requestRender");
widget.resize();
expect(scene.requestRender).not.toHaveBeenCalled();
widget._forceResize = true;
widget.resize();
expect(scene.requestRender).toHaveBeenCalled();
});
it("throws if no container id does not exist", function () {
expect(function () {
return createCesiumWidget("doesnotexist");
}).toThrowDeveloperError();
});
it("stops the render loop when render throws", function () {
widget = createCesiumWidget(container);
expect(widget.useDefaultRenderLoop).toEqual(true);
const error = "foo";
widget.scene.primitives.update = function () {
throw error;
};
return pollToPromise(function () {
return !widget.useDefaultRenderLoop;
}, "render loop to be disabled.");
});
it("shows the error panel when render throws", function () {
widget = createCesiumWidget(container);
const error = "foo";
widget.scene.primitives.update = function () {
throw error;
};
return pollToPromise(function () {
return !widget.useDefaultRenderLoop;
}).then(function () {
expect(
widget._element.querySelector(".cesium-widget-errorPanel")
).not.toBeNull();
const messages = widget._element.querySelectorAll(
".cesium-widget-errorPanel-message"
);
let found = false;
for (let i = 0; i < messages.length; ++i) {
if (messages[i].textContent.indexOf(error) !== -1) {
found = true;
}
}
expect(found).toBe(true);
// click the OK button to dismiss the panel
DomEventSimulator.fireClick(
widget._element.querySelector(".cesium-button")
);
expect(
widget._element.querySelector(".cesium-widget-errorPanel")
).toBeNull();
});
});
it("does not show the error panel if disabled", function () {
widget = createCesiumWidget(container, {
showRenderLoopErrors: false,
});
const error = "foo";
widget.scene.primitives.update = function () {
throw error;
};
return pollToPromise(function () {
return !widget.useDefaultRenderLoop;
}).then(function () {
expect(
widget._element.querySelector(".cesium-widget-errorPanel")
).toBeNull();
});
});
},
"WebGL"
);