🔍 Code Extractor

A test function that validates the correct format of root.docSchema content by comparing SHA256 hashes of different string formatting variations (with/without trailing newline) against an expected hash value.

Purpose

This function is designed to verify the exact byte-level format of root.docSchema content used in a real application. It tests whether the content should include a trailing newline character by computing SHA256 hashes of both variations and comparing them against a known expected hash. The function also analyzes the content structure, including line count, entry count, and validates consistency between the declared count field and actual number of entries. This is useful for debugging serialization issues and ensuring data integrity in document schema storage.

Source Code

def test_root_format():
    """Test different root.docSchema formats to match real app"""
    
    # Real app content from logs (8 entries, count "3"):
    real_content = """3
cdf9bcb142148a67e057d1e645efb3f8c23dab8cfa305beb08087ca8bf8184e0:80000000:99c6551f-2855-44cf-a4e4-c9c586558f42:2:260
462be446d026ff6e5790b9a7d804f0c42d18724715c152fe3eb6b231fbd57262:80000000:a6687bf1-b639-432f-953c-eb6e8282b1f9:3:17176
106c8b5e9fe2beca67dd4de6623186f68fd10befb7589104861f4554953e1a45:80000000:b47d73c5-2d7a-4e47-a293-220671e817ae:4:133774
abccfe556908b859f628935fa2cfce111aadcc6a068840174e062148bc7faef6:80000000:bc04f37b-8811-4fff-9d3a-0508d60e15c0:1:208
d8196c2f5bcab11546ac3d0f53248cbcb47b7a95a5bab169209674c54b7bde27:80000000:c0ba29f6-c184-4e29-878a-f63903d2ff03:4:18613
90504182556c1ad7d6bf4d164c53b90b6058a10538f45ee76a4524e28753db1a:80000000:cf2a3833-4a8f-4004-ab8d-8dc3c5f561bc:4:134329
08b71798ba7331e24d1f0919d3c711e1e52a6c290da5d5546c99fa1913d0b32c:80000000:f2048d46-46fd-4832-96df-34e99dfee59b:1:211
4c3fbc3461dfc69acde8e5bf5907bb36ea39945d0a0f7040e9bbfe4ff5212f7a:80000000:f9d961df-a7db-4911-918e-b841df0f2f7b:4:1128890"""

    # Test 1: With final newline
    test1 = real_content + "\n"
    hash1 = hashlib.sha256(test1.encode('utf-8')).hexdigest()
    
    # Test 2: Without final newline
    test2 = real_content
    hash2 = hashlib.sha256(test2.encode('utf-8')).hexdigest()
    
    expected_hash = "cab15166384718ac3002149cd61c2be6bd7fba3ae505937931b7856dc1c550df"
    
    print("🔍 Testing root.docSchema formats:")
    print(f"Expected hash: {expected_hash}")
    print(f"Test 1 (with newline): {hash1}")
    print(f"Test 2 (no newline):  {hash2}")
    print(f"Real content length: 952 bytes (from logs)")
    print(f"Test1 length: {len(test1.encode('utf-8'))} bytes")
    print(f"Test2 length: {len(test2.encode('utf-8'))} bytes")
    
    if hash1 == expected_hash:
        print("✅ Match: WITH final newline")
    elif hash2 == expected_hash:
        print("✅ Match: WITHOUT final newline")
    else:
        print("❌ No match - content format issue")
    
    # Analyze content structure
    lines = real_content.split('\n')
    print(f"\n📊 Content analysis:")
    print(f"   Lines: {len(lines)}")
    print(f"   Count field: {lines[0]}")
    print(f"   Actual entries: {len(lines) - 1}")
    print(f"   Count mismatch: {lines[0]} vs {len(lines) - 1}")

Return Value

This function does not return any value (implicitly returns None). It performs validation and prints diagnostic information to stdout, including hash comparisons, byte length analysis, and content structure details.

Dependencies

• hashlib

Required Imports

import hashlib

Usage Example

import hashlib

def test_root_format():
    # Function implementation here
    pass

# Run the test
test_root_format()

# Expected output:
# 🔍 Testing root.docSchema formats:
# Expected hash: cab15166384718ac3002149cd61c2be6bd7fba3ae505937931b7856dc1c550df
# Test 1 (with newline): <hash_value>
# Test 2 (no newline):  <hash_value>
# Real content length: 952 bytes (from logs)
# Test1 length: <bytes> bytes
# Test2 length: <bytes> bytes
# ✅ Match: WITH final newline (or WITHOUT final newline)
# 
# 📊 Content analysis:
#    Lines: 9
#    Count field: 3
#    Actual entries: 8
#    Count mismatch: 3 vs 8

Best Practices

• This is a diagnostic/test function meant to be run standalone for debugging purposes, not for production use
• The function uses hardcoded test data and expected hash values specific to a particular application state
• The function reveals a data inconsistency: the count field shows '3' but there are 8 actual entries in the content
• When adapting this function, update the 'real_content' and 'expected_hash' variables to match your specific use case
• The function demonstrates the importance of exact byte-level matching when computing cryptographic hashes
• Consider using this pattern when debugging serialization issues where trailing whitespace or newlines may cause hash mismatches

Tags

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