@google/model-viewer
Version:
Easily display interactive 3D models on the web and in AR!
89 lines • 3.81 kB
JavaScript
/* @license
* Copyright 2019 Google LLC. All Rights Reserved.
* Licensed under the Apache License, Version 2.0 (the 'License');
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an 'AS IS' BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
import { expect } from 'chai';
import ModelViewerElementBase from '../../model-viewer-base.js';
import { $evictionPolicy, CachingGLTFLoader } from '../../three-components/CachingGLTFLoader.js';
import { ModelViewerGLTFInstance } from '../../three-components/gltf-instance/ModelViewerGLTFInstance.js';
import { assetPath } from '../helpers.js';
const ModelViewerElement = class extends ModelViewerElementBase {
static get is() {
return 'model-viewer-loader';
}
};
customElements.define('model-viewer-loader', ModelViewerElement);
const ASTRONAUT_GLB_PATH = assetPath('models/Astronaut.glb');
suite('CachingGLTFLoader', () => {
suite('when loading a glTF', () => {
let loader;
let element;
setup(() => {
loader = new CachingGLTFLoader(ModelViewerGLTFInstance);
element = new ModelViewerElement();
});
teardown(() => {
CachingGLTFLoader.clearCache();
});
suite('before glTF is loaded', () => {
test('reports that it has not finished loading', async () => {
const fileLoads = loader.load(ASTRONAUT_GLB_PATH, element);
try {
expect(CachingGLTFLoader.hasFinishedLoading(ASTRONAUT_GLB_PATH))
.to.be.false;
}
finally {
await fileLoads;
}
});
});
suite('after glTF is loaded', () => {
test('reports that it has finished loading', async () => {
await loader.load(ASTRONAUT_GLB_PATH, element);
expect(CachingGLTFLoader.hasFinishedLoading(ASTRONAUT_GLB_PATH))
.to.be.true;
});
});
test('synchronously populates the cache', async () => {
const fileLoads = loader.load(ASTRONAUT_GLB_PATH, element);
try {
expect(CachingGLTFLoader.has(ASTRONAUT_GLB_PATH)).to.be.true;
}
finally {
await fileLoads;
}
});
test('yields a promise that resolves a group', async () => {
const { scene } = await loader.load(ASTRONAUT_GLB_PATH, element);
expect(scene).to.be.ok;
expect(scene.type).to.be.equal('Group');
});
suite('with items outside of the eviction threshold', () => {
let naturalEvictionThreshold;
setup(() => {
naturalEvictionThreshold = loader[$evictionPolicy].evictionThreshold;
loader[$evictionPolicy].evictionThreshold = 0;
});
teardown(() => {
loader[$evictionPolicy].evictionThreshold = naturalEvictionThreshold;
});
test('deletes them when they are fully released', async () => {
const gltf = await loader.load(ASTRONAUT_GLB_PATH, element);
expect(CachingGLTFLoader.has(ASTRONAUT_GLB_PATH)).to.be.true;
gltf.dispose();
expect(CachingGLTFLoader.has(ASTRONAUT_GLB_PATH)).to.be.false;
});
});
});
});
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