mirror of https://github.com/CesiumGS/cesium.git
106 lines
3.5 KiB
JavaScript
106 lines
3.5 KiB
JavaScript
import { Cartesian3, EncodedCartesian3 } from "../../index.js";
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describe("Core/EncodedCartesian3", function () {
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it("construct with default values", function () {
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const encoded = new EncodedCartesian3();
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expect(encoded.high).toEqual(Cartesian3.ZERO);
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expect(encoded.low).toEqual(Cartesian3.ZERO);
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});
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it("endcode encodes a positive value", function () {
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const encoded = EncodedCartesian3.encode(-10000000.0);
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expect(encoded.high + encoded.low).toEqual(-10000000.0);
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});
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it("endcode encodes a negative value", function () {
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const encoded = EncodedCartesian3.encode(10000000.0);
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expect(encoded.high + encoded.low).toEqual(10000000.0);
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});
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it("endcode encodes with a result parameter", function () {
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const result = {
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high: 0.0,
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low: 0.0,
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};
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const returnedResult = EncodedCartesian3.encode(0.0, result);
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expect(result).toBe(returnedResult);
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expect(returnedResult.high + returnedResult.low).toEqual(0.0);
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});
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it("fromCartesian encodes a cartesian", function () {
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const c = new Cartesian3(-10000000.0, 0.0, 10000000.0);
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const encoded = EncodedCartesian3.fromCartesian(c);
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// Look mom, no epsilon check.
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expect(encoded.high.x + encoded.low.x).toEqual(-10000000.0);
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expect(encoded.high.y + encoded.low.y).toEqual(0.0);
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expect(encoded.high.z + encoded.low.z).toEqual(10000000.0);
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});
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it("fromCartesian encodes a cartesian with a result parameter", function () {
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const p = new Cartesian3(-10000000.0, 0.0, 10000000.0);
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const encoded = EncodedCartesian3.fromCartesian(p);
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const positions = new Float32Array(6);
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EncodedCartesian3.writeElements(p, positions, 0);
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expect(encoded.high.x).toEqual(positions[0]);
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expect(encoded.high.y).toEqual(positions[1]);
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expect(encoded.high.z).toEqual(positions[2]);
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expect(encoded.low.x).toEqual(positions[3]);
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expect(encoded.low.y).toEqual(positions[4]);
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expect(encoded.low.z).toEqual(positions[5]);
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});
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it("writeElements encodes a cartesian", function () {
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const c = new Cartesian3(-10000000.0, 0.0, 10000000.0);
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const encoded = new EncodedCartesian3();
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const encoded2 = EncodedCartesian3.fromCartesian(c, encoded);
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expect(encoded2).toBe(encoded);
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expect(encoded.high.x + encoded.low.x).toEqual(-10000000.0);
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expect(encoded.high.y + encoded.low.y).toEqual(0.0);
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expect(encoded.high.z + encoded.low.z).toEqual(10000000.0);
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});
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it("encode throws without a value", function () {
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expect(function () {
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EncodedCartesian3.encode();
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}).toThrowDeveloperError();
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});
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it("fromCartesian throws without a cartesian", function () {
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expect(function () {
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EncodedCartesian3.fromCartesian();
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}).toThrowDeveloperError();
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});
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it("writeElements throws without a cartesian", function () {
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expect(function () {
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EncodedCartesian3.writeElements();
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}).toThrowDeveloperError();
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});
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it("writeElements throws without a cartesianArray", function () {
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expect(function () {
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EncodedCartesian3.writeElements(new Cartesian3());
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}).toThrowDeveloperError();
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});
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it("writeElements throws without an index", function () {
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expect(function () {
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EncodedCartesian3.writeElements(new Cartesian3(), new Float32Array(6));
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}).toThrowDeveloperError();
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});
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it("writeElements throws with a negative index", function () {
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expect(function () {
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EncodedCartesian3.writeElements(
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new Cartesian3(),
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new Float32Array(6),
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-1,
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);
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}).toThrowDeveloperError();
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});
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});
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