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test(pdf-codec): work toward a genuine 100% mutation score - #1270

#1270

Draft

Mearman wants to merge 92 commits into

mainExaDev/documents.js:mainfrom

feat/100-percent-mutation-pdf-codecExaDev/documents.js:feat/100-percent-mutation-pdf-codecCopy head branch name to clipboard

Conversation Commits92 (92)Checks Files changed

Draft

test(pdf-codec): work toward a genuine 100% mutation score#1270
Mearman wants to merge 92 commits into
mainfrom
feat/100-percent-mutation-pdf-codec

Commits

Commits on Sep 14, 2026

test(pdf-codec): raise the unit suite's test timeout to absorb shared-machine contention
Mearman
committed
dd3b64b
test(pdf-codec): serialize Stryker's own worker processes to one at a time
Mearman
committed
fb12cd7
refactor(pdf-codec): remove sfnt fixture builder's equivalent-mutant surface
Mearman
committed
d8dc024
test(pdf-codec): pin sfnt.ts fixture builders' own byte layout directly
Mearman
committed
2751fd3
test(pdf-codec): close sfnt.ts's remaining coverage and equivalent-mutant gaps
Mearman
committed
3cf5b64
refactor(pdf-codec): build rc4's initial state array by index-mapping
Mearman
committed
9e257ae
refactor(pdf-codec): drop padBigEndian's unreachable early-exit guard
Mearman
committed
73193a5
refactor(pdf-codec): remove formatNumber's unreachable -0 normalisation
Mearman
committed
21bf4f1
refactor(pdf-codec): narrow applyEncryptMethod off the unused identity method
Mearman
committed
a9952a7
refactor(pdf-codec): compare parities directly in the checker8 fixture
Mearman
committed
527743d
refactor(pdf-codec): build jpeg2000FixtureSamples' planes by length-mapping
Mearman
committed
f163e47
test(pdf-codec): assert throwIfAborted's DOMException name and message
Mearman
committed
d9bfc39
test(pdf-codec): reject a non-1 major version whose body parses cleanly
Mearman
committed
9c9a1aa
test(pdf-codec): refuse a font whose hhea declares zero horizontal metrics
Mearman
committed
c9ac63d
test(pdf-codec): cover encodeCcittFax's degenerate-geometry guard
Mearman
committed
97bfd94
test(pdf-codec): round-trip a form array through LayoutDocumentSchema
Mearman
committed
1b5f4c5
test(pdf-codec): cover deflate's level option and inflate's size guard
Mearman
committed
4efb1fb
test(pdf-codec): warn on a filespec whose /EF has no /F or /UF stream
Mearman
committed
bf4c0ae
refactor(pdf-codec): dedupe pdf.ts fixture builder's boilerplate literals
Mearman
committed
515addf
test(pdf-codec): distinguish isTrueTypeCollection's own two guards
Mearman
committed
a22371e
test(pdf-codec): add a dedicated suite for parseHmtx
Mearman
committed
d97da16
test(pdf-codec): cover buildSimpleFont/buildCompositeFont's BaseFont fallback
Mearman
committed
6b47572
test(pdf-codec): cover writeDoublePath's fill rule and zero-bisector case
Mearman
committed
5187614
test(pdf-codec): add a direct test file for jbig2-generic.ts
Mearman
committed
e041d79
test(pdf-codec): cover computeFlags' FLAG_ITALIC bit
Mearman
committed
fd6aff9
test(pdf-codec): pin FixtureBuilder's own byte-level mechanics directly
Mearman
committed
30acc2a
test(pdf-codec): close pdf.ts fixture-consumer gaps around vacuous negatives
Mearman
committed
d799dc8
refactor(pdf-codec): drive rc4's keystream loop from data.forEach
Mearman
committed
00f1a99
refactor(pdf-codec): remove sha2's fixed-size-array equivalent mutants
Mearman
committed
c369fe4
fix(pdf-codec): remove probeCff's redundant empty-Name-INDEX check
Mearman
committed
b2c92a2
fix(pdf-codec): cover formatNumber's epsilon guard and escapeName's boundaries
Mearman
committed
4ffcb2b
test(pdf-codec): add a dedicated suite for readXmpMetadata
Mearman
committed
1bf7964
test(pdf-codec): pin flattenCubic's own subdivision arithmetic directly
Mearman
committed
a5355e4
test(pdf-codec): close renderPdfPage's own boundary and geometry gaps
Mearman
committed
f8bd0fa
test(pdf-codec): cover renderPdfPage's Type0/CIDFontType2 font-refusal branches
Mearman
committed
d11d226
test(pdf-codec): pin renderPdfPage's abort checks, clip boundaries, and error codes
Mearman
committed
60adcfb
test(pdf-codec): cover flattenCubic's max-distance and exact-tolerance boundaries
Mearman
committed
6768c7f
test(pdf-codec): cover the stroke branch of drawRect, drawEllipse, and drawPath
Mearman
committed
4f7418d
test(pdf-codec): cover the empty-glyph skip, unstated descendant subtype, and header search window
Mearman
committed
e9d950c
refactor(pdf-codec): drop dead outline-face fields and a redundant length guard
Mearman
committed
46476cc
test(pdf-codec): cover CIDToGIDMap's own trailing-unpaired-byte bound
Mearman
committed
7dfa4aa
test(pdf-codec): pin glyphOutlineSubpaths' contour walk directly
Mearman
committed
8b7dc57
refactor(pdf-codec): eliminate two more redundant bounds guards
Mearman
committed
5266365
test(pdf-codec): pin the outline-refusal diagnostic's own face-name fallback
Mearman
committed
00bd605
refactor(pdf-codec): eliminate sha2's round-expansion length equivalent mutants
Mearman
committed
1b93708
refactor(pdf-codec): remove escapeName's dead whole-name safety check
Mearman
committed
6ff5972
test(pdf-codec): align the too-small-headerSize fixture's own byte offsets
Mearman
committed
650952f
refactor(pdf-codec): stop writing object 0's xref-stream row as a literal
Mearman
committed
810e336
test(pdf-codec): pin header()'s default version and the first xref revision's own byte layout
Mearman
committed
d9caef5
test(pdf-codec): read a pageless document on the unaborted path
Mearman
committed
995d604
test(pdf-codec): pin the dedup annotation's own parse and the manifest stream's bytes
Mearman
committed
e8e3d61
test(pdf-codec): assert the raw XMP residue matches byte-for-byte
Mearman
committed
f62f0e9
test(pdf-codec): read the metadata fixture's own page alongside its metadata
Mearman
committed
eb1321f
test(pdf-codec): pin equalCropBoxPdf's own declared CropBox bytes
Mearman
committed
f8bb66d
test(pdf-codec): pin taggedFormPdf's struct elements and both fixtures' raw MCID spans
Mearman
committed
9829990
test(pdf-codec): pin parentTreeMissingEntryPdf's own struct element
Mearman
committed
9c6e600
refactor(pdf-codec): stop computing an unread MediaBox width/height for the rotation matrix
Mearman
committed
730dfe0
refactor(pdf-codec): extract drawGlyphOutline for direct coverage of its own empty-subpaths branch
Mearman
committed
04080f2
refactor(pdf-codec): remove drawTextRun's dead glyphAdvance fallback
Mearman
committed
91ba1c3
test(pdf-codec): pin drawPath's own dotted-stroke width scaling
Mearman
committed
164e5d8
refactor(pdf-codec): remove glyphOutlineSubpaths' redundant segment-count guard
Mearman
committed
4110088
test(pdf-codec): pin the /Contents array's own inter-chunk separator byte
Mearman
committed
3738d8c
refactor(pdf-codec): remove drawTextRun's redundant empty-contours check
Mearman
committed
552aaed
test(pdf-codec): drive cff-bounds.ts's charstring interpreter with hand-built programs
Mearman
committed
797b4a8
test(pdf-codec): drive glyf-contours.ts's simple-glyph decoding with a fake GlyfTable
Mearman
committed
19c5d53
test(pdf-codec): share the write-side PDF fixture and assert CIDSystemInfo fields
Mearman
committed
85cc362
test(pdf-codec): cover math-font-write's descriptor scaling, W array, and ToUnicode filtering
Mearman
committed
bd3c214
test(pdf-codec): cover writeFormulaContentStream's glyph-run, rule, and stroke items
Mearman
committed
4ec4438
test(pdf-codec): cover parseDestination's view types and the outline cycle guard
Mearman
committed
ed4fcdf
refactor(pdf-codec): remove the unreachable duplicate-name check in the /Dests dictionary loop
Mearman
committed
74d79ab
test(pdf-codec): pick characters that actually distinguish math-content-write's byte packing
Mearman
committed
5f10c36
test(pdf-codec): cover embedded-font-write's serif flag, subset tag arithmetic, and dict keys
Mearman
committed
f0f2c2f
refactor(pdf-codec): build utf16BeWithBom's bytes by appending, not by computed offset
Mearman
committed
a7e85f2
test(pdf-codec): assert every MATH constant field metricsAt exposes
Mearman
committed
1e9271b
refactor(pdf-codec): build jp2-boxes' colour-space lookup inside the function that reads it
Mearman
committed
796b9b6
refactor(pdf-codec): build the progression-order table inside readCodingDefaults
Mearman
committed
a986476
refactor(pdf-codec): build the 9-7 lifting constants inside inverse97Filter
Mearman
committed
fb45c14
refactor(pdf-codec): drop jp2-boxes guards that duplicate a later bounds check
Mearman
committed
0dbba99
test(pdf-codec): kill jp2-boxes.ts mutants left over from the JPEG 2000 decoder
Mearman
committed
b09ca0b
refactor(pdf-codec): expose MarkerCursor and drop a redundant code-block-size check
Mearman
committed
899a293
test(pdf-codec): cover jpeg2000-codestream.ts's header-segment and cursor edge cases
Mearman
committed
1ab570f
refactor(pdf-codec): expose interleave, mirrorIndex and synthesiseLine for testing
Mearman
committed
4c7b479
test(pdf-codec): cover jpeg2000-dwt.ts's zero-size, boundary and index-arithmetic cases
Mearman
committed
f90e788
test(pdf-codec): cover remaining jpeg2000-codestream.ts header-segment cases
Mearman
committed
5ec167d
refactor(pdf-codec): drop trimTrailingEoc's own redundant length guard
Mearman
committed
e4565a9
test(pdf-codec): cover jpeg2000-codestream.ts's remaining header-segment boundaries
Mearman
committed
0249b3f
refactor(pdf-codec): drop inverseDwt53Level/97Level's own non-positive-dimension guard
Mearman
committed
636af2a
test(pdf-codec): cover jpeg2000-dwt.ts's filter loop bounds and remaining edges
Mearman
committed
5f32ee4
refactor(pdf-codec): extract inverseDwt53Level/97Level's row loop into a testable primitive
Mearman
committed
1566283
test(pdf-codec): cover times() directly and pin inverse97Filter's F-12/F-13 boundaries
Mearman
committed
fc15617
refactor(pdf-codec): drop mirrorIndex's redundant absolute-position round-trip
Mearman
committed
1dd62af
test(pdf-codec): update mirrorIndex/synthesiseLine tests for the offset-from-i0 signature
Mearman
committed
e8fe312

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