#!/usr/bin/env python3
"""Generate nested_failure.pdf - every page has at least one diagnostic."""

PDF_CONTENT = b"""%PDF-1.4
1 0 obj
<< /Type /Catalog /Pages 2 0 R >>
endobj
2 0 obj
<< /Type /Pages /Kids [3 0 R 4 0 R 5 0 R] /Count 3 >>
endobj
3 0 obj
% Page 1: Missing MediaBox
<< /Type /Page /Parent 2 0 R /Contents 6 0 R /Resources << >> >>
endobj
4 0 obj
% Page 2: Invalid name in resources
<< /Type /Page /Parent 2 0 R /MediaBox [0 0 612 792] /Contents 6 0 R /Resources << /Font << /F# 7 0 R >> >> >>
endobj
5 0 obj
% Page 3: Circular reference in contents
<< /Type /Page /Parent 2 0 R /MediaBox [0 0 612 792] /Contents 5 0 R /Resources << >> >>
endobj
6 0 obj
<< /Length 44 >>
stream
BT
/F1 12 Tf
100 700 Td
(Test) Tj
ET
endstream
endobj
7 0 obj
<< /Type /Font /Subtype /Type1 /BaseFont /Helvetica >>
endobj
xref
0 8
0000000000 65535 f
0000000009 00000 n
0000000058 00000 n
0000000131 00000 n
0000000248 00000 n
0000000385 00000 n
0000000542 00000 n
0000000635 00000 n
trailer
<< /Size 8 /Root 1 0 R >>
startxref
728
%%EOF
"""

with open('nested_failure.pdf', 'wb') as f:
    f.write(PDF_CONTENT)

print("Generated nested_failure.pdf")
print("Page 1: Missing MediaBox (STRUCT_MISSING_KEY)")
print("Page 2: Invalid name in resources (STRUCT_INVALID_NAME)")
print("Page 3: Circular reference (CIRCULAR_REFERENCE)")
print("Expected: >= 3 pages extracted, ~3 diagnostics")