@tensorflow/tfjs-core
Version:
Hardware-accelerated JavaScript library for machine intelligence
40 lines • 1.49 kB
JavaScript
/**
* @license
* Copyright 2018 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 * as tf from './index';
import { ALL_ENVS, describeWithFlags } from './jasmine_util';
describeWithFlags('nextFrame', ALL_ENVS, () => {
it('basic usage', async () => {
const t0 = tf.util.now();
await tf.nextFrame();
const t1 = tf.util.now();
// tf.util.now should give sufficient accuracy on all supported envs.
expect(t1 > t0);
});
it('does not block timers', async () => {
let flag = false;
setTimeout(() => {
flag = true;
}, 50);
const t0 = tf.util.now();
expect(flag).toBe(false);
while (tf.util.now() - t0 < 1000 && !flag) {
await tf.nextFrame();
}
expect(flag).toBe(true);
});
});
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