pdftract/tests/debug_fingerprint_content_edit.rs
jedarden d0f52751ce fix(pdftract-39gey): fix indent trigger to not split drop-cap paragraphs
The indent trigger was using .abs() which fired on both increased indent
(non-indented → indented) AND decreased indent (indented → non-indented).
This caused drop-cap style paragraphs (indented first line, flush-left
continuation) to incorrectly split into two blocks.

Per plan Phase 4.4 heuristic #2, indent change should only trigger when the
current line is MORE indented (to the right, larger x0) than the block
average - i.e., a new paragraph starting after non-indented text. It should
NOT trigger for decreased indent (first line indented, rest flush-left).

Fix: Remove .abs() and only check if line_x0 - block_avg_x0 > threshold.

Tests:
- test_indented_first_line_new_block: PASS (non-indented → indented splits)
- test_indented_first_line_of_paragraph_not_split: PASS (drop cap stays together)
- All 179 line module tests: PASS
2026-06-07 13:43:19 -04:00

35 lines
1.3 KiB
Rust

// Debug test to understand why content_edit fixtures produce same fingerprint
use pdftract_core::document::compute_pdf_fingerprint;
use std::path::PathBuf;
fn main() {
let fixtures_dir = PathBuf::from("tests/fingerprint/fixtures");
// Test content_edit_one_glyph
let dir = fixtures_dir.join("content_edit_one_glyph");
let v1 = dir.join("v1.pdf");
let v2 = dir.join("v2.pdf");
println!("=== Testing content_edit_one_glyph ===");
let fp1 = compute_pdf_fingerprint(&v1).expect("Failed to compute fingerprint for v1");
let fp2 = compute_pdf_fingerprint(&v2).expect("Failed to compute fingerprint for v2");
println!("v1 fingerprint: {}", fp1);
println!("v2 fingerprint: {}", fp2);
println!("Are they equal? {}", fp1 == fp2);
// Test content_edit_one_paragraph
let dir2 = fixtures_dir.join("content_edit_one_paragraph");
let v1p = dir2.join("v1.pdf");
let v2p = dir2.join("v2.pdf");
println!("\n=== Testing content_edit_one_paragraph ===");
let fp1p = compute_pdf_fingerprint(&v1p).expect("Failed to compute fingerprint for v1p");
let fp2p = compute_pdf_fingerprint(&v2p).expect("Failed to compute fingerprint for v2p");
println!("v1 fingerprint: {}", fp1p);
println!("v2 fingerprint: {}", fp2p);
println!("Are they equal? {}", fp1p == fp2p);
}