File size: 2,763 Bytes
f0743f4 | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 | /**
* Tests for client-side image resizing utility
*/
import { shouldResizeImage, supportsClientResize } from '../imageResize';
// Mock browser APIs for testing
Object.defineProperty(global, 'HTMLCanvasElement', {
value: function () {
return {
getContext: () => ({
drawImage: jest.fn(),
}),
toBlob: jest.fn(),
};
},
writable: true,
});
Object.defineProperty(global, 'FileReader', {
value: function () {
return {
readAsDataURL: jest.fn(),
};
},
writable: true,
});
Object.defineProperty(global, 'Image', {
value: function () {
return {};
},
writable: true,
});
describe('imageResize utility', () => {
describe('supportsClientResize', () => {
it('should return true when all required APIs are available', () => {
const result = supportsClientResize();
expect(result).toBe(true);
});
it('should return false when HTMLCanvasElement is not available', () => {
const originalCanvas = global.HTMLCanvasElement;
// @ts-ignore
delete global.HTMLCanvasElement;
const result = supportsClientResize();
expect(result).toBe(false);
global.HTMLCanvasElement = originalCanvas;
});
});
describe('shouldResizeImage', () => {
it('should return true for large image files', () => {
const largeImageFile = new File([''], 'test.jpg', {
type: 'image/jpeg',
lastModified: Date.now(),
});
// Mock large file size
Object.defineProperty(largeImageFile, 'size', {
value: 100 * 1024 * 1024, // 100MB
writable: false,
});
const result = shouldResizeImage(largeImageFile, 50 * 1024 * 1024); // 50MB limit
expect(result).toBe(true);
});
it('should return false for small image files', () => {
const smallImageFile = new File([''], 'test.jpg', {
type: 'image/jpeg',
lastModified: Date.now(),
});
// Mock small file size
Object.defineProperty(smallImageFile, 'size', {
value: 1024, // 1KB
writable: false,
});
const result = shouldResizeImage(smallImageFile, 50 * 1024 * 1024); // 50MB limit
expect(result).toBe(false);
});
it('should return false for non-image files', () => {
const textFile = new File([''], 'test.txt', {
type: 'text/plain',
lastModified: Date.now(),
});
const result = shouldResizeImage(textFile);
expect(result).toBe(false);
});
it('should return false for GIF files', () => {
const gifFile = new File([''], 'test.gif', {
type: 'image/gif',
lastModified: Date.now(),
});
const result = shouldResizeImage(gifFile);
expect(result).toBe(false);
});
});
});
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