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add test for invalid ancillary after IDAT #44936

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merged 1 commit into from Mar 9, 2024
Merged

add test for invalid ancillary after IDAT #44936

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Binary file added png/errors/support/invalid-unknown-ancillary-after-IDAT.png
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17 changes: 17 additions & 0 deletions png/errors/unknown-ancillary-error-recovery-2-ref.html
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@@ -0,0 +1,17 @@
<!DOCTYPE html>
<html>
<meta charset="utf-8">
<title>PNG Third Edition: Decoder error recovery, invalid ancillary</title>
<link rel="author" title="Chris Lilley" href="mailto:chris@w3.org">
<style>
.test {
width: 32px;
height: 32px;
background-color: green;
}
</style>
<body>
<p>Test passes if you see a rainbow square, and not a red one.</p>
<div class="test"><img src="support/no-invalid-chunks.png" alt=""></div>
</body>
</html>
21 changes: 21 additions & 0 deletions png/errors/unknown-ancillary-error-recovery-2.html
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@@ -0,0 +1,21 @@
<!DOCTYPE html>
<html>
<meta charset="utf-8">
<title>PNG Third Edition: Decoder error recovery, invalid ancillary after IDAT</title>
<link rel="author" title="Chris Lilley" href="mailto:chris@w3.org">
<link rel="help" href="https://www.w3.org/TR/png-3/#13Decoders.Errors">
<link rel="help" href="https://github.com/w3c/PNG-spec/issues/320">
<link rel="match" href="unknown-ancillary-error-recovery-2-ref.html">
<meta name="assert" content="Encountering an unknown ancillary chunk is never an error. The chunk can simply be ignored.">
<style>
.test {
width: 32px;
height: 32px;
background-color: red;
}
</style>
<body>
<p>Test passes if you see a rainbow square, and not a red one.</p>
<div class="test"><img src="support/invalid-unknown-ancillary-after-IDAT.png" alt=""></div>
</body>
</html>