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// Copyright 2018-2024 the Deno authors. All rights reserved. MIT license.
import { assertEquals } from "./test_util.ts";
Deno.test(function imageDataInitializedWithSourceWidthAndHeight() {
const imageData = new ImageData(16, 9);
assertEquals(imageData.width, 16);
assertEquals(imageData.height, 9);
assertEquals(imageData.data.length, 16 * 9 * 4); // width * height * 4 (RGBA pixels)
assertEquals(imageData.colorSpace, "srgb");
});
Deno.test(function imageDataInitializedWithImageDataAndWidth() {
const imageData = new ImageData(new Uint8ClampedArray(16 * 9 * 4), 16);
assertEquals(imageData.width, 16);
assertEquals(imageData.height, 9);
assertEquals(imageData.data.length, 16 * 9 * 4); // width * height * 4 (RGBA pixels)
assertEquals(imageData.colorSpace, "srgb");
});
Deno.test(
function imageDataInitializedWithImageDataAndWidthAndHeightAndColorSpace() {
const imageData = new ImageData(new Uint8ClampedArray(16 * 9 * 4), 16, 9, {
colorSpace: "display-p3",
});
assertEquals(imageData.width, 16);
assertEquals(imageData.height, 9);
assertEquals(imageData.data.length, 16 * 9 * 4); // width * height * 4 (RGBA pixels)
assertEquals(imageData.colorSpace, "display-p3");
},
);
Deno.test(
async function imageDataUsedInWorker() {
const { promise, resolve } = Promise.withResolvers<void>();
const url = import.meta.resolve(
"../testdata/workers/image_data_worker.ts",
);
const expectedData = 16;
const worker = new Worker(url, { type: "module" });
worker.onmessage = function (e) {
assertEquals(expectedData, e.data);
worker.terminate();
resolve();
};
await promise;
},
);
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