Files
Gitea/web_src/js/utils/image.test.ts
silverwind 224b7881d9 Forbid localStorage access in eslint (#36461)
Followup to
59f812bc1c,
enforce using our localStorage wrapper in eslint.

Also did a few tweaks in the eslint config, like removing the incomplete
list of globals, this is a non-issue with typescript.

---------

Signed-off-by: silverwind <me@silverwind.io>
2026-01-27 19:59:51 +00:00

31 lines
1.6 KiB
TypeScript

import {pngChunks, imageInfo} from './image.ts';
const pngNoPhys = 'data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAAAAAA6fptVAAAADUlEQVQIHQECAP3/AAAAAgABzePRKwAAAABJRU5ErkJggg==';
const pngPhys = 'data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAIAAAACCAIAAAD91JpzAAAACXBIWXMAABYlAAAWJQFJUiTwAAAAEElEQVQI12OQNZcAIgYIBQAL8gGxdzzM0A==';
const pngEmpty = 'data:image/png;base64,';
async function dataUriToBlob(datauri: string) {
return await (await globalThis.fetch(datauri)).blob(); // eslint-disable-line no-restricted-properties
}
test('pngChunks', async () => {
expect(await pngChunks(await dataUriToBlob(pngNoPhys))).toEqual([
{name: 'IHDR', data: new Uint8Array([0, 0, 0, 1, 0, 0, 0, 1, 8, 0, 0, 0, 0])},
{name: 'IDAT', data: new Uint8Array([8, 29, 1, 2, 0, 253, 255, 0, 0, 0, 2, 0, 1])},
{name: 'IEND', data: new Uint8Array([])},
]);
expect(await pngChunks(await dataUriToBlob(pngPhys))).toEqual([
{name: 'IHDR', data: new Uint8Array([0, 0, 0, 2, 0, 0, 0, 2, 8, 2, 0, 0, 0])},
{name: 'pHYs', data: new Uint8Array([0, 0, 22, 37, 0, 0, 22, 37, 1])},
{name: 'IDAT', data: new Uint8Array([8, 215, 99, 144, 53, 151, 0, 34, 6, 8, 5, 0, 11, 242, 1, 177])},
]);
expect(await pngChunks(await dataUriToBlob(pngEmpty))).toEqual([]);
});
test('imageInfo', async () => {
expect(await imageInfo(await dataUriToBlob(pngNoPhys))).toEqual({width: 1, dppx: 1});
expect(await imageInfo(await dataUriToBlob(pngPhys))).toEqual({width: 2, dppx: 2});
expect(await imageInfo(await dataUriToBlob(pngEmpty))).toEqual({width: 0, dppx: 1});
expect(await imageInfo(await dataUriToBlob(`data:image/gif;base64,`))).toEqual({});
});