123 lines
3.8 KiB
TypeScript
123 lines
3.8 KiB
TypeScript
/** @jest-environment node */
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import sharp from 'sharp'
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import {
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assertProcessableMetadata,
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processImage,
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sliceImage,
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} from '@/lib/image-processor'
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describe('sliceImage width guard', () => {
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test('宽图服务器兜底会先等比缩到 1600px 再切片', async () => {
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const source = await sharp({
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create: {
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width: 2000,
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height: 2000,
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channels: 3,
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background: { r: 220, g: 220, b: 220 },
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},
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}).png().toBuffer()
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const slices = await sliceImage(source, 1500, 200, 1600)
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const metadata = await Promise.all(slices.map((slice) => sharp(slice).metadata()))
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expect(slices.length).toBeGreaterThan(0)
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expect(slices.length).toBeLessThanOrEqual(60)
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for (const item of metadata) {
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expect(item.format).toBe('webp')
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expect(item.width).toBeLessThanOrEqual(1600)
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expect(item.height).toBeLessThanOrEqual(1500)
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}
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})
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test('任务详情专用门禁允许超过全局 20000px 但仍在 60 片内的长图', async () => {
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const source = await sharp({
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create: {
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width: 100,
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height: 25_000,
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channels: 3,
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background: { r: 210, g: 210, b: 210 },
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},
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}).png().toBuffer()
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await expect(sliceImage(source, 1500, 200, 1600)).rejects.toThrow('图片切割失败')
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const slices = await sliceImage(source, 1500, 200, 1600, {
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maxInputWidth: 12_000,
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maxInputHeight: 90_000,
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maxInputPixels: 60_000_000,
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allowAnimatedFirstFrame: true,
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})
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const metadata = await Promise.all(slices.map((slice) => sharp(slice).metadata()))
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expect(slices).toHaveLength(17)
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expect(metadata.every((item) => (item.width || 0) <= 1600 && (item.height || 0) <= 1500)).toBe(true)
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})
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test('动图在任务详情兜底中安全取首帧，默认链路仍拒绝', async () => {
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const width = 16
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const height = 16
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const redFrame = Buffer.alloc(width * height * 4)
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const blueFrame = Buffer.alloc(width * height * 4)
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for (let index = 0; index < width * height; index += 1) {
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redFrame[index * 4] = 255
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redFrame[index * 4 + 3] = 255
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blueFrame[index * 4 + 2] = 255
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blueFrame[index * 4 + 3] = 255
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}
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const animatedGif = await sharp(Buffer.concat([redFrame, blueFrame]), {
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raw: { width, height: height * 2, pageHeight: height, channels: 4 },
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}).gif({ loop: 0, delay: [100, 100] }).toBuffer()
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await expect(processImage(animatedGif)).rejects.toThrow('图片处理失败')
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const preview = await processImage(animatedGif, {
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maxWidth: 800,
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maxHeight: 1200,
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maxSizeKB: 200,
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format: 'webp',
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allowAnimatedFirstFrame: true,
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maxInputWidth: 12_000,
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maxInputHeight: 90_000,
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maxInputPixels: 60_000_000,
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})
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const metadata = await sharp(preview, { animated: true }).metadata()
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expect(metadata.format).toBe('webp')
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expect(metadata.pages ?? 1).toBe(1)
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})
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test('任务详情服务器兜底与浏览器保持 12000x90000/60M 输入边界', () => {
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const taskDetailLimits = {
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maxInputWidth: 12_000,
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maxInputHeight: 90_000,
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maxInputPixels: 60_000_000,
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allowAnimatedFirstFrame: true,
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}
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expect(() => assertProcessableMetadata({
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width: 12_001,
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height: 1_000,
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pages: 1,
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} as sharp.Metadata, taskDetailLimits)).toThrow('图片尺寸过大')
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expect(() => assertProcessableMetadata({
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width: 800,
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height: 75_000,
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pages: 1,
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} as sharp.Metadata, taskDetailLimits)).not.toThrow()
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expect(() => assertProcessableMetadata({
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width: 800,
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height: 75_001,
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pages: 1,
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} as sharp.Metadata, taskDetailLimits)).toThrow('图片像素总量过大')
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expect(() => assertProcessableMetadata({
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width: 1,
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height: 90_001,
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pages: 1,
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} as sharp.Metadata, taskDetailLimits)).toThrow('图片尺寸过大')
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})
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})
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