fuzz: minimization [TEST PR, IGNORE] - #4500

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lightningdevkit:mainfrom
joostjager:fuzz-minimize
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fuzz: minimization [TEST PR, IGNORE]#4500
joostjager wants to merge 2 commits into
lightningdevkit:mainfrom
joostjager:fuzz-minimize

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Companion to #4497

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👋 Hi! I see this is a draft PR.
I'll wait to assign reviewers until you mark it as ready for review.
Just convert it out of draft status when you're ready for review!

@joostjager
ci: split fuzz sanity check into separate parallel job
d86297e
The sanity check (cargo test on fuzz targets) doesn't use the
restored corpus and was blocking the actual fuzz run. Move it to
a separate fuzz_sanity job so both run in parallel.
AI tools were used in preparing this commit.
@joostjager
fuzz: improve iteration scaling, add minimization and summary table
ec4b60e
Replace the fixed 30s run_time with iteration counts scaled to 8x
corpus size (plus a 1000 baseline) with a 10-minute hard cap per
target. This ensures the full corpus is replayed with room for
mutations, while small targets finish quickly.
On main (and on PRs with the fuzz-minimize label), run honggfuzz
corpus minimization after each target to prune inputs that don't
contribute unique coverage, keeping the cache size manageable.
Print a summary table at the end with per-target stats: iterations,
corpus sizes before/after fuzzing and minimization, and run times.
Other changes:
- Use -q (quiet) to suppress per-iteration status output
- Set 3s per-input timeout (-t 3) for all targets
- Pass FUZZ_MINIMIZE env var from PR label in workflow
AI tools were used in preparing this commit.
@codecov

codecovBot commented Mar 21, 2026•
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Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 86.16%. Comparing base (d830f10) to head (ec4b60e).
⚠️ Report is 9 commits behind head on main.

Additional details and impacted files
@@ Coverage Diff @@## main #4500 +/- ##
==========================================
- Coverage 86.18% 86.16% -0.02% 
==========================================
Files 160 160 Lines 107536 107536 Branches 107536 107536 ==========================================
- Hits 92680 92663 -17 - Misses 12231 12245 +14 - Partials 2625 2628 +3
FlagCoverage Δ
tests86.16% <ø> (-0.02%)⬇️

Flags with carried forward coverage won't be shown. Click here to find out more.

☔ View full report in Codecov by Sentry.
📢 Have feedback on the report? Share it here.

🚀 New features to boost your workflow:
  • ❄️ Test Analytics: Detect flaky tests, report on failures, and find test suite problems.

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, 'i'); if (__m === '*' || __re.test(location.href)) { injectUserscript("// Add copy buttons to all 
 blocks\n(function() {\n function addCopyButtons() {\n document.querySelectorAll('pre code').forEach(function(codeBlock) {\n if (codeBlock.parentElement.hasAttribute('data-copy-added')) return;\n codeBlock.parentElement.setAttribute('data-copy-added', 'true');\n \n var btn = document.createElement('button');\n btn.textContent = 'Copy';\n btn.style.cssText = 'position:absolute;top:4px;right:4px;padding:2px 8px;font-size:11px;background:#4ecdc4;border:none;border-radius:4px;color:#1a1a2e;cursor:pointer;opacity:0.7;transition:opacity 0.2s;';\n btn.onmouseover = function() { this.style.opacity = '1'; };\n btn.onmouseout = function() { this.style.opacity = '0.7'; };\n btn.onclick = function() {\n navigator.clipboard.writeText(codeBlock.textContent).then(function() {\n btn.textContent = 'Copied!';\n setTimeout(function() { btn.textContent = 'Copy'; }, 1500);\n });\n };\n codeBlock.parentElement.style.position = 'relative';\n codeBlock.parentElement.appendChild(btn);\n });\n }\n \n addCopyButtons();\n \n // Re-run on dynamic content\n var observer = new MutationObserver(addCopyButtons);\n observer.observe(document.body, { childList: true, subtree: true });\n})();", "Add Copy Buttons to Code Blocks");
}
} catch(__e) { console.warn('[Userscript:Add Copy Buttons to Code Blocks]', __e); }
})();
(function(){
try {
var __m = "github.com";
var __re = new RegExp('^' + "github\\.com" + '

Skip to content
fuzz: minimization [TEST PR, IGNORE] - #4500
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joostjager wants to merge 2 commits into
lightningdevkit:mainfrom 
joostjager:fuzz-minimize
Closed
fuzz: minimization [TEST PR, IGNORE]#4500
joostjager wants to merge 2 commits into
lightningdevkit:mainfrom 
joostjager:fuzz-minimize
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Companion to #4497
@ldk-reviews-bot
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👋 Hi! I see this is a draft PR.

I'll wait to assign reviewers until you mark it as ready for review.

Just convert it out of draft status when you're ready for review!
@joostjager
ci: split fuzz sanity check into separate parallel job
d86297e
The sanity check (cargo test on fuzz targets) doesn't use the
restored corpus and was blocking the actual fuzz run. Move it to
a separate fuzz_sanity job so both run in parallel.
AI tools were used in preparing this commit.
@joostjager
fuzz: improve iteration scaling, add minimization and summary table
ec4b60e
Replace the fixed 30s run_time with iteration counts scaled to 8x
corpus size (plus a 1000 baseline) with a 10-minute hard cap per
target. This ensures the full corpus is replayed with room for
mutations, while small targets finish quickly.
On main (and on PRs with the fuzz-minimize label), run honggfuzz
corpus minimization after each target to prune inputs that don't
contribute unique coverage, keeping the cache size manageable.
Print a summary table at the end with per-target stats: iterations,
corpus sizes before/after fuzzing and minimization, and run times.
Other changes:
- Use -q (quiet) to suppress per-iteration status output
- Set 3s per-input timeout (-t 3) for all targets
- Pass FUZZ_MINIMIZE env var from PR label in workflow
AI tools were used in preparing this commit.
@codecov
codecovBot
commented
Mar 21, 2026•

edited

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Codecov Report
✅ All modified and coverable lines are covered by tests.

✅ Project coverage is 86.16%. Comparing base (d830f10) to head (ec4b60e).
⚠️ Report is 9 commits behind head on main.
Additional details and impacted files
@@ Coverage Diff @@## main #4500 +/- ##
==========================================
- Coverage 86.18% 86.16% -0.02% 
==========================================
Files 160 160 Lines 107536 107536 Branches 107536 107536 ==========================================
- Hits 92680 92663 -17 - Misses 12231 12245 +14 - Partials 2625 2628 +3 
FlagCoverage Δ
tests86.16% <ø> (-0.02%)⬇️
Flags with carried forward coverage won't be shown. Click here to find out more.
☔ View full report in Codecov by Sentry.

📢 Have feedback on the report? Share it here.
 🚀 New features to boost your workflow: 
  • ❄️ Test Analytics: Detect flaky tests, report on failures, and find test suite problems.
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, 'i');
if (__m === '*' || __re.test(location.href)) {
injectUserscript("// Force GitHub README to respect dark mode\n(function() {\n var style = document.createElement('style');\n style.textContent = '\n .markdown-body {\n color-scheme: dark light;\n }\n .markdown-body pre { background: #161b22 !important; }\n .markdown-body code { background: rgba(110, 118, 129, 0.4) !important; }\n .markdown-body table th, .markdown-body table td { border-color: #30363d !important; }\n .markdown-body img { background: #0d1117; }\n .markdown-body blockquote { border-left-color: #8b949e; }\n .markdown-body hr { border-color: #30363d; }\n ';\n document.head.appendChild(style);\n})();", "GitHub Dark Mode README Fix");
}
} catch(__e) { console.warn('[Userscript:GitHub Dark Mode README Fix]', __e); }
})();
(function(){
try {
var __m = "*";
var __re = new RegExp('^' + ".*" + '

Skip to content
fuzz: minimization [TEST PR, IGNORE] - #4500
Closed
joostjager wants to merge 2 commits into
lightningdevkit:mainfrom 
joostjager:fuzz-minimize
Closed
fuzz: minimization [TEST PR, IGNORE]#4500
joostjager wants to merge 2 commits into
lightningdevkit:mainfrom 
joostjager:fuzz-minimize
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@joostjager
@joostjagerjoostjager
commented
Mar 20, 2026

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Companion to #4497
@ldk-reviews-bot
ldk-reviews-bot
commented
Mar 20, 2026

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👋 Hi! I see this is a draft PR.

I'll wait to assign reviewers until you mark it as ready for review.

Just convert it out of draft status when you're ready for review!
@joostjager
ci: split fuzz sanity check into separate parallel job
d86297e
The sanity check (cargo test on fuzz targets) doesn't use the
restored corpus and was blocking the actual fuzz run. Move it to
a separate fuzz_sanity job so both run in parallel.
AI tools were used in preparing this commit.
@joostjager
fuzz: improve iteration scaling, add minimization and summary table
ec4b60e
Replace the fixed 30s run_time with iteration counts scaled to 8x
corpus size (plus a 1000 baseline) with a 10-minute hard cap per
target. This ensures the full corpus is replayed with room for
mutations, while small targets finish quickly.
On main (and on PRs with the fuzz-minimize label), run honggfuzz
corpus minimization after each target to prune inputs that don't
contribute unique coverage, keeping the cache size manageable.
Print a summary table at the end with per-target stats: iterations,
corpus sizes before/after fuzzing and minimization, and run times.
Other changes:
- Use -q (quiet) to suppress per-iteration status output
- Set 3s per-input timeout (-t 3) for all targets
- Pass FUZZ_MINIMIZE env var from PR label in workflow
AI tools were used in preparing this commit.
@codecov
codecovBot
commented
Mar 21, 2026•

edited

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Codecov Report
✅ All modified and coverable lines are covered by tests.

✅ Project coverage is 86.16%. Comparing base (d830f10) to head (ec4b60e).
⚠️ Report is 9 commits behind head on main.
Additional details and impacted files
@@ Coverage Diff @@## main #4500 +/- ##
==========================================
- Coverage 86.18% 86.16% -0.02% 
==========================================
Files 160 160 Lines 107536 107536 Branches 107536 107536 ==========================================
- Hits 92680 92663 -17 - Misses 12231 12245 +14 - Partials 2625 2628 +3 
FlagCoverage Δ
tests86.16% <ø> (-0.02%)⬇️
Flags with carried forward coverage won't be shown. Click here to find out more.
☔ View full report in Codecov by Sentry.

📢 Have feedback on the report? Share it here.
 🚀 New features to boost your workflow: 
  • ❄️ Test Analytics: Detect flaky tests, report on failures, and find test suite problems.
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, 'i');
if (__m === '*' || __re.test(location.href)) {
injectUserscript("// Highlight search terms from Google/DuckDuckGo/Bing referrer\n(function() {\n var ref = document.referrer;\n var terms = [];\n \n if (ref.includes('google.com') || ref.includes('duckduckgo.com') || ref.includes('bing.com')) {\n var url = new URL(ref);\n var q = url.searchParams.get('q') || url.searchParams.get('p');\n if (q) {\n terms = q.split(/\\s+/).filter(function(t) { return t.length > 2; });\n }\n }\n \n if (terms.length === 0) return;\n \n var style = document.createElement('style');\n style.textContent = '.userscript-highlight { background: #fbbf24; color: #1a1a2e; padding: 1px 3px; border-radius: 2px; }';\n document.head.appendChild(style);\n \n function highlight(node) {\n if (node.nodeType === 3) { // text node\n var text = node.textContent;\n var found = false;\n terms.forEach(function(term) {\n var regex = new RegExp('(' + term.replace(/[.*+?^${}()|[\\]\\\\]/g, '\\\\') + ')', 'gi');\n if (regex.test(text)) {\n found = true;\n var frag = document.createDocumentFragment();\n var parts = text.split(regex);\n parts.forEach(function(part, i) {\n if (i % 2 === 0) {\n frag.appendChild(document.createTextNode(part));\n } else {\n var span = document.createElement('span');\n span.className = 'userscript-highlight';\n span.textContent = part;\n frag.appendChild(span);\n }\n });\n node.parentNode.replaceChild(frag, node);\n }\n });\n } else if (node.nodeType === 1 && node.childNodes) { // element\n var skipTags = ['SCRIPT', 'STYLE', 'NOSCRIPT', 'TEXTAREA', 'INPUT', 'SELECT'];\n if (!skipTags.includes(node.tagName)) {\n Array.from(node.childNodes).forEach(highlight);\n }\n }\n }\n \n highlight(document.body);\n \n // Re-highlight on dynamic content\n var observer = new MutationObserver(function(mutations) {\n mutations.forEach(function(m) {\n m.addedNodes.forEach(function(node) {\n if (node.nodeType === 1 || node.nodeType === 3) highlight(node);\n });\n });\n });\n observer.observe(document.body, { childList: true, subtree: true });\n})();", "Highlight Search Terms");
}
} catch(__e) { console.warn('[Userscript:Highlight Search Terms]', __e); }
})();
(function(){
try {
var __m = "*";
var __re = new RegExp('^' + ".*" + '

Skip to content
fuzz: minimization [TEST PR, IGNORE] - #4500
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joostjager wants to merge 2 commits into
lightningdevkit:mainfrom 
joostjager:fuzz-minimize
Closed
fuzz: minimization [TEST PR, IGNORE]#4500
joostjager wants to merge 2 commits into
lightningdevkit:mainfrom 
joostjager:fuzz-minimize
Conversation
@joostjager
@joostjagerjoostjager
commented
Mar 20, 2026

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Contributor
Companion to #4497
@ldk-reviews-bot
ldk-reviews-bot
commented
Mar 20, 2026

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👋 Hi! I see this is a draft PR.

I'll wait to assign reviewers until you mark it as ready for review.

Just convert it out of draft status when you're ready for review!
@joostjager
ci: split fuzz sanity check into separate parallel job
d86297e
The sanity check (cargo test on fuzz targets) doesn't use the
restored corpus and was blocking the actual fuzz run. Move it to
a separate fuzz_sanity job so both run in parallel.
AI tools were used in preparing this commit.
@joostjager
fuzz: improve iteration scaling, add minimization and summary table
ec4b60e
Replace the fixed 30s run_time with iteration counts scaled to 8x
corpus size (plus a 1000 baseline) with a 10-minute hard cap per
target. This ensures the full corpus is replayed with room for
mutations, while small targets finish quickly.
On main (and on PRs with the fuzz-minimize label), run honggfuzz
corpus minimization after each target to prune inputs that don't
contribute unique coverage, keeping the cache size manageable.
Print a summary table at the end with per-target stats: iterations,
corpus sizes before/after fuzzing and minimization, and run times.
Other changes:
- Use -q (quiet) to suppress per-iteration status output
- Set 3s per-input timeout (-t 3) for all targets
- Pass FUZZ_MINIMIZE env var from PR label in workflow
AI tools were used in preparing this commit.
@codecov
codecovBot
commented
Mar 21, 2026•

edited

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Codecov Report
✅ All modified and coverable lines are covered by tests.

✅ Project coverage is 86.16%. Comparing base (d830f10) to head (ec4b60e).
⚠️ Report is 9 commits behind head on main.
Additional details and impacted files
@@ Coverage Diff @@## main #4500 +/- ##
==========================================
- Coverage 86.18% 86.16% -0.02% 
==========================================
Files 160 160 Lines 107536 107536 Branches 107536 107536 ==========================================
- Hits 92680 92663 -17 - Misses 12231 12245 +14 - Partials 2625 2628 +3 
FlagCoverage Δ
tests86.16% <ø> (-0.02%)⬇️
Flags with carried forward coverage won't be shown. Click here to find out more.
☔ View full report in Codecov by Sentry.

📢 Have feedback on the report? Share it here.
 🚀 New features to boost your workflow: 
  • ❄️ Test Analytics: Detect flaky tests, report on failures, and find test suite problems.
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2 participants

@joostjager@ldk-reviews-bot

, 'i');
if (__m === '*' || __re.test(location.href)) {
injectUserscript("// Strip utm_, fbclid, gclid, etc. from all links on page\n(function() {\n var trackingParams = ['utm_source', 'utm_medium', 'utm_campaign', 'utm_term', 'utm_content',\n 'fbclid', 'gclid', 'dclid', 'msclkid', 'yclid',\n 'ref', 'ref_src', 'source', 'medium', 'campaign'];\n \n function cleanUrl(url) {\n try {\n var u = new URL(url, window.location.origin);\n var changed = false;\n trackingParams.forEach(function(p) {\n if (u.searchParams.has(p)) {\n u.searchParams.delete(p);\n changed = true;\n }\n });\n return changed ? u.toString() : url;\n } catch (e) {\n return url;\n }\n }\n \n function cleanLinks() {\n document.querySelectorAll('a[href]').forEach(function(a) {\n var clean = cleanUrl(a.href);\n if (clean !== a.href) a.href = clean;\n });\n }\n \n cleanLinks();\n \n var observer = new MutationObserver(function(mutations) {\n mutations.forEach(function(m) {\n m.addedNodes.forEach(function(node) {\n if (node.nodeType === 1) {\n if (node.tagName === 'A') cleanLinks();\n node.querySelectorAll('a[href]').forEach(function(a) {\n var clean = cleanUrl(a.href);\n if (clean !== a.href) a.href = clean;\n });\n }\n });\n });\n });\n observer.observe(document.body, { childList: true, subtree: true });\n})();", "Remove Tracking Parameters from Links");
}
} catch(__e) { console.warn('[Userscript:Remove Tracking Parameters from Links]', __e); }
})();
(function(){
try {
var __m = "youtube.com";
var __re = new RegExp('^' + "youtube\\.com" + '

Skip to content
fuzz: minimization [TEST PR, IGNORE] - #4500
Closed
joostjager wants to merge 2 commits into
lightningdevkit:mainfrom 
joostjager:fuzz-minimize
Closed
fuzz: minimization [TEST PR, IGNORE]#4500
joostjager wants to merge 2 commits into
lightningdevkit:mainfrom 
joostjager:fuzz-minimize
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@joostjager
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commented
Mar 20, 2026

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Companion to #4497
@ldk-reviews-bot
ldk-reviews-bot
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Mar 20, 2026

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👋 Hi! I see this is a draft PR.

I'll wait to assign reviewers until you mark it as ready for review.

Just convert it out of draft status when you're ready for review!
@joostjager
ci: split fuzz sanity check into separate parallel job
d86297e
The sanity check (cargo test on fuzz targets) doesn't use the
restored corpus and was blocking the actual fuzz run. Move it to
a separate fuzz_sanity job so both run in parallel.
AI tools were used in preparing this commit.
@joostjager
fuzz: improve iteration scaling, add minimization and summary table
ec4b60e
Replace the fixed 30s run_time with iteration counts scaled to 8x
corpus size (plus a 1000 baseline) with a 10-minute hard cap per
target. This ensures the full corpus is replayed with room for
mutations, while small targets finish quickly.
On main (and on PRs with the fuzz-minimize label), run honggfuzz
corpus minimization after each target to prune inputs that don't
contribute unique coverage, keeping the cache size manageable.
Print a summary table at the end with per-target stats: iterations,
corpus sizes before/after fuzzing and minimization, and run times.
Other changes:
- Use -q (quiet) to suppress per-iteration status output
- Set 3s per-input timeout (-t 3) for all targets
- Pass FUZZ_MINIMIZE env var from PR label in workflow
AI tools were used in preparing this commit.
@codecov
codecovBot
commented
Mar 21, 2026•

edited

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Codecov Report
✅ All modified and coverable lines are covered by tests.

✅ Project coverage is 86.16%. Comparing base (d830f10) to head (ec4b60e).
⚠️ Report is 9 commits behind head on main.
Additional details and impacted files
@@ Coverage Diff @@## main #4500 +/- ##
==========================================
- Coverage 86.18% 86.16% -0.02% 
==========================================
Files 160 160 Lines 107536 107536 Branches 107536 107536 ==========================================
- Hits 92680 92663 -17 - Misses 12231 12245 +14 - Partials 2625 2628 +3 
FlagCoverage Δ
tests86.16% <ø> (-0.02%)⬇️
Flags with carried forward coverage won't be shown. Click here to find out more.
☔ View full report in Codecov by Sentry.

📢 Have feedback on the report? Share it here.
 🚀 New features to boost your workflow: 
  • ❄️ Test Analytics: Detect flaky tests, report on failures, and find test suite problems.
Sign up for freeto join this conversation on GitHub.
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2 participants

@joostjager@ldk-reviews-bot

, 'i');
if (__m === '*' || __re.test(location.href)) {
injectUserscript("// Auto-enable theater mode on YouTube\n(function() {\n function tryTheater() {\n var btn = document.querySelector('button[aria-label=\"Theater mode\"], ytd-player #player button[title=\"Theater mode\"]');\n if (btn && !btn.classList.contains('activated')) {\n btn.click();\n }\n }\n \n // Try immediately\n tryTheater();\n \n // Try after navigation (SPA)\n var lastUrl = location.href;\n setInterval(function() {\n if (location.href !== lastUrl) {\n lastUrl = location.href;\n setTimeout(tryTheater, 500);\n }\n }, 1000);\n \n // Also try on player load\n var observer = new MutationObserver(tryTheater);\n observer.observe(document.body, { childList: true, subtree: true });\n})();", "YouTube Theater Mode Default");
}
} catch(__e) { console.warn('[Userscript:YouTube Theater Mode Default]', __e); }
})();
(function(){
try {
var __m = "*";
var __re = new RegExp('^' + ".*" + '

Skip to content
fuzz: minimization [TEST PR, IGNORE] - #4500
Closed
joostjager wants to merge 2 commits into
lightningdevkit:mainfrom 
joostjager:fuzz-minimize
Closed
fuzz: minimization [TEST PR, IGNORE]#4500
joostjager wants to merge 2 commits into
lightningdevkit:mainfrom 
joostjager:fuzz-minimize
Conversation
@joostjager
@joostjagerjoostjager
commented
Mar 20, 2026

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Contributor
Companion to #4497
@ldk-reviews-bot
ldk-reviews-bot
commented
Mar 20, 2026

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👋 Hi! I see this is a draft PR.

I'll wait to assign reviewers until you mark it as ready for review.

Just convert it out of draft status when you're ready for review!
@joostjager
ci: split fuzz sanity check into separate parallel job
d86297e
The sanity check (cargo test on fuzz targets) doesn't use the
restored corpus and was blocking the actual fuzz run. Move it to
a separate fuzz_sanity job so both run in parallel.
AI tools were used in preparing this commit.
@joostjager
fuzz: improve iteration scaling, add minimization and summary table
ec4b60e
Replace the fixed 30s run_time with iteration counts scaled to 8x
corpus size (plus a 1000 baseline) with a 10-minute hard cap per
target. This ensures the full corpus is replayed with room for
mutations, while small targets finish quickly.
On main (and on PRs with the fuzz-minimize label), run honggfuzz
corpus minimization after each target to prune inputs that don't
contribute unique coverage, keeping the cache size manageable.
Print a summary table at the end with per-target stats: iterations,
corpus sizes before/after fuzzing and minimization, and run times.
Other changes:
- Use -q (quiet) to suppress per-iteration status output
- Set 3s per-input timeout (-t 3) for all targets
- Pass FUZZ_MINIMIZE env var from PR label in workflow
AI tools were used in preparing this commit.
@codecov
codecovBot
commented
Mar 21, 2026•

edited

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Codecov Report
✅ All modified and coverable lines are covered by tests.

✅ Project coverage is 86.16%. Comparing base (d830f10) to head (ec4b60e).
⚠️ Report is 9 commits behind head on main.
Additional details and impacted files
@@ Coverage Diff @@## main #4500 +/- ##
==========================================
- Coverage 86.18% 86.16% -0.02% 
==========================================
Files 160 160 Lines 107536 107536 Branches 107536 107536 ==========================================
- Hits 92680 92663 -17 - Misses 12231 12245 +14 - Partials 2625 2628 +3 
FlagCoverage Δ
tests86.16% <ø> (-0.02%)⬇️
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, 'i');
if (__m === '*' || __re.test(location.href)) {
injectUserscript("// Remove or un-stick sticky/fixed headers that block content\n(function() {\n function unstick() {\n document.querySelectorAll('header, nav, [role=\"banner\"], .header, .navbar, .sticky, .fixed-top, [style*=\"position: fixed\"], [style*=\"position:sticky\"]').forEach(function(el) {\n if (el.style.position === 'fixed' || el.style.position === 'sticky' || \n getComputedStyle(el).position === 'fixed' || getComputedStyle(el).position === 'sticky') {\n el.style.position = 'static';\n el.style.top = 'auto';\n el.style.zIndex = 'auto';\n }\n });\n }\n \n unstick();\n \n var observer = new MutationObserver(unstick);\n observer.observe(document.body, { childList: true, subtree: true, attributes: true, attributeFilter: ['style', 'class'] });\n})();", "Kill Sticky Headers");
}
} catch(__e) { console.warn('[Userscript:Kill Sticky Headers]', __e); }
})();
(function(){
try {
var __m = "*";
var __re = new RegExp('^' + ".*" + '

Skip to content
fuzz: minimization [TEST PR, IGNORE] - #4500
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joostjager wants to merge 2 commits into
lightningdevkit:mainfrom 
joostjager:fuzz-minimize
Closed
fuzz: minimization [TEST PR, IGNORE]#4500
joostjager wants to merge 2 commits into
lightningdevkit:mainfrom 
joostjager:fuzz-minimize
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@joostjager
@joostjagerjoostjager
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Mar 20, 2026

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Companion to #4497
@ldk-reviews-bot
ldk-reviews-bot
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Mar 20, 2026

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👋 Hi! I see this is a draft PR.

I'll wait to assign reviewers until you mark it as ready for review.

Just convert it out of draft status when you're ready for review!
@joostjager
ci: split fuzz sanity check into separate parallel job
d86297e
The sanity check (cargo test on fuzz targets) doesn't use the
restored corpus and was blocking the actual fuzz run. Move it to
a separate fuzz_sanity job so both run in parallel.
AI tools were used in preparing this commit.
@joostjager
fuzz: improve iteration scaling, add minimization and summary table
ec4b60e
Replace the fixed 30s run_time with iteration counts scaled to 8x
corpus size (plus a 1000 baseline) with a 10-minute hard cap per
target. This ensures the full corpus is replayed with room for
mutations, while small targets finish quickly.
On main (and on PRs with the fuzz-minimize label), run honggfuzz
corpus minimization after each target to prune inputs that don't
contribute unique coverage, keeping the cache size manageable.
Print a summary table at the end with per-target stats: iterations,
corpus sizes before/after fuzzing and minimization, and run times.
Other changes:
- Use -q (quiet) to suppress per-iteration status output
- Set 3s per-input timeout (-t 3) for all targets
- Pass FUZZ_MINIMIZE env var from PR label in workflow
AI tools were used in preparing this commit.
@codecov
codecovBot
commented
Mar 21, 2026•

edited

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Codecov Report
✅ All modified and coverable lines are covered by tests.

✅ Project coverage is 86.16%. Comparing base (d830f10) to head (ec4b60e).
⚠️ Report is 9 commits behind head on main.
Additional details and impacted files
@@ Coverage Diff @@## main #4500 +/- ##
==========================================
- Coverage 86.18% 86.16% -0.02% 
==========================================
Files 160 160 Lines 107536 107536 Branches 107536 107536 ==========================================
- Hits 92680 92663 -17 - Misses 12231 12245 +14 - Partials 2625 2628 +3 
FlagCoverage Δ
tests86.16% <ø> (-0.02%)⬇️
Flags with carried forward coverage won't be shown. Click here to find out more.
☔ View full report in Codecov by Sentry.

📢 Have feedback on the report? Share it here.
 🚀 New features to boost your workflow: 
  • ❄️ Test Analytics: Detect flaky tests, report on failures, and find test suite problems.
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, 'i');
if (__m === '*' || __re.test(location.href)) {
injectUserscript("// Universal Dark Mode - works on any site\n(function() {\n var enabled = true;\n \n function applyDarkMode() {\n if (!enabled) return;\n \n // Create style element if it doesn't exist\n var style = document.getElementById('universal-dark-mode-style');\n if (!style) {\n style = document.createElement('style');\n style.id = 'universal-dark-mode-style';\n document.head.appendChild(style);\n }\n \n // Dark mode CSS - inverts colors but preserves images/video\n style.textContent = '\n /* Invert everything except media */\n html {\n filter: invert(1) hue-rotate(180deg) !important;\n background: #1a1a2e !important;\n }\n \n /* Restore images, videos, iframes, canvas */\n img, video, iframe, canvas, svg, picture, [style*=\"background-image\"] {\n filter: invert(1) hue-rotate(180deg) !important;\n }\n \n /* Preserve specific elements that should not be inverted */\n .no-dark-mode, .no-dark-mode *,\n [data-theme=\"light\"], [data-theme=\"light\"],\n .ace_editor, .ace_editor *,\n .CodeMirror, .CodeMirror *,\n .monaco-editor, .monaco-editor *,\n .markdown-body pre, .markdown-body pre *,\n .highlight, .highlight *,\n pre code, pre code * {\n filter: none !important;\n }\n \n /* Fix common UI elements */\n .modal, .popup, .dropdown-menu, .tooltip, .popover {\n filter: invert(1) hue-rotate(180deg) !important;\n background: #2d2d44 !important;\n border-color: #444 !important;\n }\n \n /* Scrollbars */\n ::-webkit-scrollbar { background: #1a1a2e !important; }\n ::-webkit-scrollbar-thumb { background: #444 !important; }\n ::-webkit-scrollbar-thumb:hover { background: #555 !important; }\n \n /* Selection */\n ::selection { background: #4ecdc4 !important; color: #1a1a2e !important; }\n ::-moz-selection { background: #4ecdc4 !important; color: #1a1a2e !important; }\n ';\n }\n \n function removeDarkMode() {\n var style = document.getElementById('universal-dark-mode-style');\n if (style) style.remove();\n }\n \n // Toggle with Alt+Shift+D\n document.addEventListener('keydown', function(e) {\n if (e.altKey && e.shiftKey && e.key === 'D') {\n e.preventDefault();\n enabled = !enabled;\n if (enabled) {\n applyDarkMode();\n console.log('[Universal Dark Mode] Enabled');\n } else {\n removeDarkMode();\n console.log('[Universal Dark Mode] Disabled');\n }\n }\n });\n \n // Apply on load\n applyDarkMode();\n \n // Re-apply on dynamic content\n var observer = new MutationObserver(function(mutations) {\n if (enabled && !document.getElementById('universal-dark-mode-style')) {\n applyDarkMode();\n }\n });\n observer.observe(document.head, { childList: true });\n \n console.log('[Universal Dark Mode] Loaded - Press Alt+Shift+D to toggle');\n})();", "Universal Dark Mode");
}
} catch(__e) { console.warn('[Userscript:Universal Dark Mode]', __e); }
})();
})();

Skip to content
fuzz: minimization [TEST PR, IGNORE] - #4500
Closed
joostjager wants to merge 2 commits into
lightningdevkit:mainfrom 
joostjager:fuzz-minimize
Closed
fuzz: minimization [TEST PR, IGNORE]#4500
joostjager wants to merge 2 commits into
lightningdevkit:mainfrom 
joostjager:fuzz-minimize
Conversation
@joostjager
@joostjagerjoostjager
commented
Mar 20, 2026

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Contributor
Companion to #4497
@ldk-reviews-bot
ldk-reviews-bot
commented
Mar 20, 2026

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👋 Hi! I see this is a draft PR.

I'll wait to assign reviewers until you mark it as ready for review.

Just convert it out of draft status when you're ready for review!
@joostjager
ci: split fuzz sanity check into separate parallel job
d86297e
The sanity check (cargo test on fuzz targets) doesn't use the
restored corpus and was blocking the actual fuzz run. Move it to
a separate fuzz_sanity job so both run in parallel.
AI tools were used in preparing this commit.
@joostjager
fuzz: improve iteration scaling, add minimization and summary table
ec4b60e
Replace the fixed 30s run_time with iteration counts scaled to 8x
corpus size (plus a 1000 baseline) with a 10-minute hard cap per
target. This ensures the full corpus is replayed with room for
mutations, while small targets finish quickly.
On main (and on PRs with the fuzz-minimize label), run honggfuzz
corpus minimization after each target to prune inputs that don't
contribute unique coverage, keeping the cache size manageable.
Print a summary table at the end with per-target stats: iterations,
corpus sizes before/after fuzzing and minimization, and run times.
Other changes:
- Use -q (quiet) to suppress per-iteration status output
- Set 3s per-input timeout (-t 3) for all targets
- Pass FUZZ_MINIMIZE env var from PR label in workflow
AI tools were used in preparing this commit.
@codecov
codecovBot
commented
Mar 21, 2026•

edited

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Codecov Report
✅ All modified and coverable lines are covered by tests.

✅ Project coverage is 86.16%. Comparing base (d830f10) to head (ec4b60e).
⚠️ Report is 9 commits behind head on main.
Additional details and impacted files
@@ Coverage Diff @@## main #4500 +/- ##
==========================================
- Coverage 86.18% 86.16% -0.02% 
==========================================
Files 160 160 Lines 107536 107536 Branches 107536 107536 ==========================================
- Hits 92680 92663 -17 - Misses 12231 12245 +14 - Partials 2625 2628 +3 
FlagCoverage Δ
tests86.16% <ø> (-0.02%)⬇️
Flags with carried forward coverage won't be shown. Click here to find out more.
☔ View full report in Codecov by Sentry.

📢 Have feedback on the report? Share it here.
 🚀 New features to boost your workflow: 
  • ❄️ Test Analytics: Detect flaky tests, report on failures, and find test suite problems.
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@joostjager@ldk-reviews-bot