72 lines
2.4 KiB
JavaScript
72 lines
2.4 KiB
JavaScript
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defineSuite([
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'Scene/BoxEmitter',
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'Core/Cartesian3',
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'Scene/Particle'
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], function(
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BoxEmitter,
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Cartesian3,
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Particle) {
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'use strict';
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var emitter;
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it('default constructor', function() {
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emitter = new BoxEmitter();
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expect(emitter.dimensions).toEqual(new Cartesian3(1.0, 1.0, 1.0));
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});
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it('constructor', function() {
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var dimensions = new Cartesian3(2.0, 3.0, 4.0);
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emitter = new BoxEmitter(dimensions);
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expect(emitter.dimensions).toEqual(dimensions);
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});
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it('constructor throws with invalid dimensions', function() {
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expect(function() {
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emitter = new BoxEmitter(new Cartesian3(-1.0, 1.0, 1.0));
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}).toThrowDeveloperError();
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expect(function() {
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emitter = new BoxEmitter(new Cartesian3(1.0, -1.0, 1.0));
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}).toThrowDeveloperError();
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expect(function() {
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emitter = new BoxEmitter(new Cartesian3(1.0, 1.0, -1.0));
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}).toThrowDeveloperError();
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});
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it('dimensions setter', function() {
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emitter = new BoxEmitter();
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var dimensions = new Cartesian3(2.0, 3.0, 4.0);
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emitter.dimensions = dimensions;
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expect(emitter.dimensions).toEqual(dimensions);
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});
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it('dimensions setter throws with invalid value', function() {
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emitter = new BoxEmitter();
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expect(function() {
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emitter.dimensions = undefined;
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}).toThrowDeveloperError();
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expect(function() {
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emitter.dimensions = new Cartesian3(-1.0, 1.0, 1.0);
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}).toThrowDeveloperError();
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expect(function() {
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emitter.dimensions = new Cartesian3(1.0, -1.0, 1.0);
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}).toThrowDeveloperError();
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expect(function() {
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emitter.dimensions = new Cartesian3(1.0, -1.0, 1.0);
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}).toThrowDeveloperError();
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});
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it('emits', function() {
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emitter = new BoxEmitter(new Cartesian3(2.0, 3.0, 4.0));
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var particle = new Particle();
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for (var i = 0; i < 1000; ++i) {
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emitter.emit(particle);
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expect(particle.position.x).toBeLessThanOrEqualTo(emitter.dimensions.x);
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expect(particle.position.y).toBeLessThanOrEqualTo(emitter.dimensions.y);
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expect(particle.position.z).toBeLessThanOrEqualTo(emitter.dimensions.z);
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expect(particle.velocity).toEqual(Cartesian3.normalize(particle.position, new Cartesian3()));
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}
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});
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});
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