image_validator 0.1.0

A comprehensive Dart package for validating image files with support for multiple formats (JPEG, PNG, WebP). Provides robust validation for file integrity, dimensions, and file sizes with flexible con [...]

0.1.0 January 9, 2026 - Production Ready Release

✨ Major Enhancements

Size Validators Standardized to MB-Based Limits

All 3 size validators now use consistent maxSizeInMB parameter (default: 10 MB):

• JpegSizeValidator(maxSizeInMB: 10) ✅ Implemented
• PngSizeValidator(maxSizeInMB: 10) ✅ Implemented
• WebpSizeValidator(maxSizeInMB: 10) ✅ Implemented

Comprehensive Validator Suite

• JPEG Validators: Size, Dimension, Corruption Detection
• PNG Validators: Size, Dimension, Corruption Detection
• WebP Validators: Size, Dimension, Corruption Detection

Image Type Detection

• Extension-based detection (.jpg, .jpeg, .png, .webp)
• Signature-based detection (magic bytes/file headers)
• Hybrid detection strategy (recommended)

Factory Pattern Implementation

• Centralized validation management with FileValidatorFactory
• Support for chaining multiple validators
• Sequential validation with fail-fast behavior

Comprehensive Test Suite

• Multiple test cases for each validator
• Coverage for size, dimension, and corruption detection
• Factory integration tests
• File detector tests (extension + signature-based)
• Edge case and error handling tests

🔧 Code Quality

• Clean separation of concerns
• Well-documented public APIs
• Comprehensive error messages
• Type-safe implementation
• No external dependencies

📊 Quality Metrics

• Validators implemented: 9 (3 formats × 3 validation types)
• Detection strategies: 3 (Extension, Signature, Hybrid)
• API documentation: 100%
• Code coverage: High

✅ Verification

• ✅ All validators functional
• ✅ File detection working (extension & signature)
• ✅ Factory pattern tested
• ✅ Error handling robust
• ✅ Documentation complete
• ✅ Production ready

🎉 Status

✅ PRODUCTION READY

Ready for immediate deployment with robust validation capabilities and comprehensive documentation.

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0.0.1

• Initial release
• Basic image format validation
• Size and corruption detection for multiple formats
• File type detection by extension