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test(engine): show the truncated-page picture exports within a sufficient budget

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The fixture's image stream held six bytes under /Length 4, and the test
only checked that the picture was missing at a zero budget, which a
picture that could not be prepared also passes. The stream is four
bytes, and the picture is first shown to export at a 1 MiB budget.
This commit is contained in:
aiongg
2026-10-22 21:42:02 +00:00
parent 62b54fce09
commit 35b5abd5b3
1 changed files with 3 additions and 1 deletions
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crates/engine/src/tests.rs
+3 -1
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@@ -7293,7 +7293,7 @@ fn a_page_truncated_for_forms_and_pictures_is_listed_once() {
"<< /Type /Catalog /Pages 2 0 R >>".into(),
"<< /Type /Pages /Kids [3 0 R] /Count 1 /MediaBox [0 0 200 200] >>".into(),
String::new(),
"<< /Type /XObject /Subtype /Image /Width 2 /Height 2 /ColorSpace /DeviceGray /BitsPerComponent 8 /Length 4 >>\nstream\n\0\x40\u{80}\u{ff}\nendstream".into(),
"<< /Type /XObject /Subtype /Image /Width 2 /Height 2 /ColorSpace /DeviceGray /BitsPerComponent 8 /Length 4 >>\nstream\n\0\x20\x40\x7f\nendstream".into(),
"<< /Length 34 >>\nstream\nq 10 0 0 10 0 0 cm /Im Do Q /D1 Do\nendstream".into(),
];
// Forms D1..D{depth}, objects 6 onwards, each drawing the next.
@@ -7323,6 +7323,8 @@ fn a_page_truncated_for_forms_and_pictures_is_listed_once() {
let id = s.open("both.pdf", None, Arc::new(bytes), None).unwrap();
let doc = s.get(id).unwrap();
assert_eq!(doc.export_pages_checked(false, 0).1, [0], "the forms alone truncate the page");
let (exported, _) = doc.export_pages_checked(true, 1 << 20);
assert_eq!(exported[0].images.len(), 1, "the picture exports within a sufficient budget");
let (pages, truncated) = doc.export_pages_checked(true, 0);
assert!(pages[0].images.is_empty(), "the picture is past the budget");
assert_eq!(truncated, [0]);