David Snelling
93d2d70a44
CRITICAL FIX: Single blob read error no longer corrupts entire VFS tree Root Causes Fixed: 1. Uncaught blob errors in readFile() triggered VFS re-initialization 2. Race conditions in initializeRoot() created duplicate roots 3. Wrong root selection algorithm (oldest vs most children) Architectural Solution: - **Error Isolation**: Blob errors caught and re-thrown as VFSError VFS tree structure completely isolated from file content errors (src/vfs/VirtualFileSystem.ts:288-321) - **Singleton Promise Pattern**: Prevents duplicate root creation Concurrent init() calls wait for same initialization promise Acts as automatic mutex without custom lock class (src/vfs/VirtualFileSystem.ts:180-199) - **Smart Root Selection**: Selects root with MOST children (not oldest) Auto-heals existing duplicates on init() Logs cleanup suggestions for empty roots (src/vfs/VirtualFileSystem.ts:283-334) Production Impact: - Workshop production: 5 duplicate roots, 1,836 files orphaned - After fix: Zero duplicate roots possible, auto-healing - All 100 VFS tests pass ✅ Additional Fix: Remove Sharp native dependency (v5.8.0) ImageHandler rewritten using pure JavaScript: - exifr (already installed) for EXIF extraction - probe-image-size for image dimensions/format - Zero native dependencies (removed 10MB of native binaries) - All 25 image handler tests pass ✅ - No more test crashes from Sharp/libvips worker thread issues Test Results: - VFS tests: 100/100 pass ✅ - Image handler tests: 25/25 pass ✅ - Overall: 1157/1200 tests pass (18 pre-existing timeout issues) - Build: Successful, zero TypeScript errors ✅ Features Complete (TIER 1 - v5.8.0): - Transaction system (36 unit + 35 integration tests) - Duplicate check optimization (O(n) → O(log n)) - GraphIndex pagination - Comprehensive filter documentation
311 lines
10 KiB
TypeScript
311 lines
10 KiB
TypeScript
/**
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* ImageHandler Tests (v5.8.0 - Pure JavaScript)
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*
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* Tests for image processing with EXIF extraction and metadata extraction
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* Using probe-image-size + exifr (no native dependencies)
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*/
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import { describe, it, expect, beforeEach } from 'vitest'
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import { ImageHandler } from '../../../src/augmentations/intelligentImport/handlers/imageHandler.js'
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import { readFileSync } from 'fs'
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import { join } from 'path'
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describe('ImageHandler (v5.8.0 - Pure JS)', () => {
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let handler: ImageHandler
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// Simple test image generators (minimal PNG/JPEG headers)
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const createMinimalJPEG = (width: number = 100, height: number = 100): Buffer => {
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// Minimal JPEG: SOI + SOF0 + EOI
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// This is a valid but minimal JPEG structure
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const soi = Buffer.from([0xFF, 0xD8]) // Start of Image
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const sof0 = Buffer.from([
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0xFF, 0xC0, // SOF0 marker
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0x00, 0x11, // Length: 17 bytes
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0x08, // Precision: 8 bits
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(height >> 8) & 0xFF, height & 0xFF, // Height
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(width >> 8) & 0xFF, width & 0xFF, // Width
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0x03, // Components: 3 (YCbCr)
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0x01, 0x22, 0x00, // Y component
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0x02, 0x11, 0x01, // Cb component
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0x03, 0x11, 0x01 // Cr component
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])
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const eoi = Buffer.from([0xFF, 0xD9]) // End of Image
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return Buffer.concat([soi, sof0, eoi])
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}
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const createMinimalPNG = (width: number = 100, height: number = 100): Buffer => {
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// PNG signature
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const signature = Buffer.from([137, 80, 78, 71, 13, 10, 26, 10])
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// IHDR chunk
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const ihdr = Buffer.alloc(25)
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ihdr.writeUInt32BE(13, 0) // Length
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ihdr.write('IHDR', 4)
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ihdr.writeUInt32BE(width, 8)
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ihdr.writeUInt32BE(height, 12)
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ihdr.writeUInt8(8, 16) // Bit depth
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ihdr.writeUInt8(2, 17) // Color type (RGB)
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ihdr.writeUInt8(0, 18) // Compression
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ihdr.writeUInt8(0, 19) // Filter
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ihdr.writeUInt8(0, 20) // Interlace
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ihdr.writeUInt32BE(0, 21) // CRC (simplified)
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// IEND chunk
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const iend = Buffer.from([0, 0, 0, 0, 73, 69, 78, 68, 174, 66, 96, 130])
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return Buffer.concat([signature, ihdr, iend])
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}
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beforeEach(() => {
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handler = new ImageHandler()
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})
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describe('Handler Detection', () => {
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it('should identify as image format handler', () => {
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expect(handler.format).toBe('image')
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})
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it('should handle JPEG files by filename', () => {
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expect(handler.canHandle({ filename: 'photo.jpg' })).toBe(true)
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expect(handler.canHandle({ filename: 'photo.jpeg' })).toBe(true)
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})
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it('should handle PNG files by filename', () => {
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expect(handler.canHandle({ filename: 'logo.png' })).toBe(true)
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})
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it('should handle WebP files by filename', () => {
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expect(handler.canHandle({ filename: 'image.webp' })).toBe(true)
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})
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it('should handle other image formats', () => {
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expect(handler.canHandle({ filename: 'photo.gif' })).toBe(true)
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expect(handler.canHandle({ filename: 'photo.tiff' })).toBe(true)
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expect(handler.canHandle({ filename: 'photo.bmp' })).toBe(true)
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expect(handler.canHandle({ filename: 'icon.svg' })).toBe(true)
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})
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it('should handle images by extension', () => {
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expect(handler.canHandle({ ext: '.jpg' })).toBe(true)
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expect(handler.canHandle({ ext: 'png' })).toBe(true)
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})
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it('should reject non-image files', () => {
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expect(handler.canHandle({ filename: 'document.pdf' })).toBe(false)
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expect(handler.canHandle({ filename: 'data.csv' })).toBe(false)
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expect(handler.canHandle({ filename: 'text.txt' })).toBe(false)
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})
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it('should detect JPEG by magic bytes', () => {
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const jpegBuffer = createMinimalJPEG(100, 100)
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expect(handler.canHandle(jpegBuffer)).toBe(true)
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})
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it('should detect PNG by magic bytes', () => {
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const pngBuffer = createMinimalPNG(100, 100)
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expect(handler.canHandle(pngBuffer)).toBe(true)
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})
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})
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describe('Image Metadata Extraction', () => {
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it('should extract JPEG metadata', async () => {
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const imageBuffer = createMinimalJPEG(800, 600)
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const result = await handler.process(imageBuffer, {
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extractEXIF: false
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})
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expect(result.format).toBe('image')
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expect(result.data).toHaveLength(1)
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const imageData = result.data[0]
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expect(imageData.type).toBe('media')
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expect(imageData.metadata).toBeDefined()
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expect(imageData.metadata.subtype).toBe('image')
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expect(imageData.metadata.width).toBe(800)
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expect(imageData.metadata.height).toBe(600)
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expect(imageData.metadata.format).toBe('jpg') // probe-image-size uses 'jpg' not 'jpeg'
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})
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it('should extract PNG metadata', async () => {
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const imageBuffer = createMinimalPNG(400, 300)
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const result = await handler.process(imageBuffer, {
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extractEXIF: false
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})
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const imageData = result.data[0]
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expect(imageData.metadata.width).toBe(400)
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expect(imageData.metadata.height).toBe(300)
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expect(imageData.metadata.format).toBe('png')
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})
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it('should include image size in bytes', async () => {
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const imageBuffer = createMinimalJPEG(200, 200)
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const result = await handler.process(imageBuffer, {
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extractEXIF: false
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})
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const imageData = result.data[0]
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expect(imageData.metadata.size).toBe(imageBuffer.length)
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expect(imageData.metadata.size).toBeGreaterThan(0)
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})
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it('should include MIME type when available', async () => {
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const imageBuffer = createMinimalJPEG(100, 100)
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const result = await handler.process(imageBuffer, {
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extractEXIF: false
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})
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const imageData = result.data[0]
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expect(imageData.metadata.mimeType).toBeDefined()
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expect(imageData.metadata.mimeType).toContain('image/')
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})
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it('should include processing time in metadata', async () => {
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const imageBuffer = createMinimalJPEG(800, 600)
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const result = await handler.process(imageBuffer)
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expect(result.metadata.processingTime).toBeGreaterThanOrEqual(0)
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expect(result.metadata.processingTime).toBeLessThan(5000)
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})
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it('should include image metadata in result metadata', async () => {
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const imageBuffer = createMinimalJPEG(800, 600)
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const result = await handler.process(imageBuffer)
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expect(result.metadata.imageMetadata).toBeDefined()
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expect(result.metadata.imageMetadata.width).toBe(800)
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expect(result.metadata.imageMetadata.height).toBe(600)
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})
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})
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describe('EXIF Data Extraction', () => {
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it('should handle images without EXIF data', async () => {
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const imageBuffer = createMinimalJPEG(800, 600)
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const result = await handler.process(imageBuffer, {
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extractEXIF: true
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})
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const imageData = result.data[0]
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// Should not crash, EXIF will be undefined
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expect(imageData.metadata.exif).toBeUndefined()
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})
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it('should extract EXIF by default', async () => {
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const imageBuffer = createMinimalJPEG(800, 600)
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// Default: EXIF extraction enabled
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const result = await handler.process(imageBuffer)
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// Will be undefined for test images, but should not crash
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expect(result.metadata.exifData).toBeUndefined()
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})
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it('should allow disabling EXIF extraction', async () => {
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const imageBuffer = createMinimalJPEG(800, 600)
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const result = await handler.process(imageBuffer, {
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extractEXIF: false
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})
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const imageData = result.data[0]
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expect(imageData.metadata.exif).toBeUndefined()
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})
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})
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describe('Error Handling', () => {
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it('should handle invalid image data gracefully', async () => {
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const invalidBuffer = Buffer.from('not an image', 'utf-8')
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// Should still process but with fallback values
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const result = await handler.process(invalidBuffer, { extractEXIF: false })
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// Fallback detection should provide basic info
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expect(result.data[0].metadata.format).toBeDefined()
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expect(result.data[0].metadata.size).toBe(invalidBuffer.length)
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})
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it('should handle empty buffer', async () => {
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const emptyBuffer = Buffer.alloc(0)
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// Should not crash, but will have unknown format
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const result = await handler.process(emptyBuffer, { extractEXIF: false })
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expect(result.data[0].metadata.format).toBe('unknown')
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})
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})
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describe('Format Support', () => {
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it('should process JPEG images', async () => {
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const imageBuffer = createMinimalJPEG(200, 200)
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const result = await handler.process(imageBuffer, {
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extractEXIF: false
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})
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expect(result.data[0].metadata.format).toBe('jpg') // probe-image-size uses 'jpg' not 'jpeg'
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})
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it('should process PNG images', async () => {
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const imageBuffer = createMinimalPNG(200, 200)
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const result = await handler.process(imageBuffer, {
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extractEXIF: false
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})
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expect(result.data[0].metadata.format).toBe('png')
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})
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it('should handle various image dimensions', async () => {
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const sizes = [
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[100, 100],
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[1920, 1080],
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[400, 300],
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[1000, 500]
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]
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for (const [width, height] of sizes) {
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const imageBuffer = createMinimalJPEG(width, height)
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const result = await handler.process(imageBuffer, { extractEXIF: false })
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expect(result.data[0].metadata.width).toBe(width)
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expect(result.data[0].metadata.height).toBe(height)
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}
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})
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})
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describe('Integration with BaseFormatHandler', () => {
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it('should inherit MIME type detection from BaseFormatHandler', () => {
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// getMimeType is protected, but we can verify behavior
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expect(handler.canHandle({ filename: 'test.jpg' })).toBe(true)
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expect(handler.canHandle({ filename: 'test.png' })).toBe(true)
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})
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it('should provide structured ProcessedData', async () => {
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const imageBuffer = createMinimalJPEG(200, 200)
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const result = await handler.process(imageBuffer, {
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filename: 'test-image.jpg',
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extractEXIF: false
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})
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// Verify ProcessedData structure
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expect(result.format).toBe('image')
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expect(result.data).toBeInstanceOf(Array)
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expect(result.metadata).toBeDefined()
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expect(result.filename).toBe('test-image.jpg')
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// Verify data structure
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const entity = result.data[0]
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expect(entity.name).toBe('test-image')
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expect(entity.type).toBe('media')
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expect(entity.metadata).toBeDefined()
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})
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})
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})
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