Timeline: repair oldest/newest metrics if we fetch nothing

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Scott Nonnenberg 2020-12-04 12:41:40 -08:00 committed by GitHub
parent 56ae4a41eb
commit 6832b8acca
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47 changed files with 579 additions and 173 deletions

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// Copyright 2020 Signal Messenger, LLC
// SPDX-License-Identifier: AGPL-3.0-only
import * as fs from 'fs';
import * as path from 'path';
import { assert } from 'chai';
import { getAnimatedPngDataIfExists } from '../../util/getAnimatedPngDataIfExists';
describe('getAnimatedPngDataIfExists', () => {
const fixture = (filename: string): Promise<Buffer> => {
const fixturePath = path.join(
__dirname,
'..',
'..',
'..',
'fixtures',
filename
);
return fs.promises.readFile(fixturePath);
};
it('returns null for empty buffers', () => {
assert.isNull(getAnimatedPngDataIfExists(Buffer.alloc(0)));
});
it('returns null for non-PNG files', async () => {
await Promise.all(
[
'kitten-1-64-64.jpg',
'512x515-thumbs-up-lincoln.webp',
'giphy-GVNvOUpeYmI7e.gif',
'pixabay-Soap-Bubble-7141.mp4',
'lorem-ipsum.txt',
].map(async filename => {
assert.isNull(getAnimatedPngDataIfExists(await fixture(filename)));
})
);
});
it('returns null for non-animated PNG files', async () => {
assert.isNull(
getAnimatedPngDataIfExists(await fixture('20x200-yellow.png'))
);
});
it('returns data for animated PNG files', async () => {
assert.deepEqual(
getAnimatedPngDataIfExists(
await fixture('Animated_PNG_example_bouncing_beach_ball.png')
),
{ numPlays: Infinity }
);
assert.deepEqual(
getAnimatedPngDataIfExists(await fixture('apng_with_2_plays.png')),
{ numPlays: 2 }
);
});
});