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This commit is contained in:
Josh Perez
2021-08-05 20:17:05 -04:00
committed by GitHub
parent a001882d58
commit 12d2b1bf7c
140 changed files with 4212 additions and 1084 deletions
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17
ts/test-electron/util/canvasToArrayBuffer_test.ts
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@@ -2,12 +2,15 @@
// SPDX-License-Identifier: AGPL-3.0-only
import { assert } from 'chai';
import { IMAGE_JPEG, IMAGE_PNG } from '../../types/MIME';
import { sniffImageMimeType } from '../../util/sniffImageMimeType';
import { canvasToArrayBuffer } from '../../util/canvasToArrayBuffer';
describe('canvasToArrayBuffer', () => {
it('converts a canvas to an ArrayBuffer', async () => {
const canvas = document.createElement('canvas');
let canvas: HTMLCanvasElement;
beforeEach(() => {
canvas = document.createElement('canvas');
canvas.width = 100;
canvas.height = 200;
@@ -17,11 +20,21 @@ describe('canvasToArrayBuffer', () => {
}
context.fillStyle = '#ff9900';
context.fillRect(10, 10, 20, 20);
});
it('converts a canvas to an ArrayBuffer, JPEG by default', async () => {
const result = await canvasToArrayBuffer(canvas);
assert.strictEqual(sniffImageMimeType(result), IMAGE_JPEG);
// These are just smoke tests.
assert.instanceOf(result, ArrayBuffer);
assert.isAtLeast(result.byteLength, 50);
});
it('can convert a canvas to a PNG ArrayBuffer', async () => {
const result = await canvasToArrayBuffer(canvas, IMAGE_PNG);
assert.strictEqual(sniffImageMimeType(result), IMAGE_PNG);
});
});