diff --git a/third-party/chromium-webtests/webtests/http/tests/devtools/lighthouse/lighthouse-successful-navigation-expected.txt b/third-party/chromium-webtests/webtests/http/tests/devtools/lighthouse/lighthouse-successful-navigation-expected.txt
new file mode 100644
index 000000000000..3e8cb1c30631
--- /dev/null
+++ b/third-party/chromium-webtests/webtests/http/tests/devtools/lighthouse/lighthouse-successful-navigation-expected.txt
@@ -0,0 +1,612 @@
+Tests that navigation mode works correctly.
+
+
+========== Lighthouse Start Audit State ==========
+[x] Performance
+[x] Progressive Web App
+[x] Best practices
+[x] Accessibility
+[x] SEO
+[x] Publisher Ads
+[ ] Legacy navigation
+[x] Clear storage
+[x] Simulated throttling
+Generate report: enabled visible
+
+=============== Lighthouse Status Updates ===============
+Loading…
+Initialize config
+Resolve artifact definitions
+Resolve navigation definitions
+Gather phase
+Connecting to browser
+Navigating to about:blank
+Benchmarking machine
+Getting browser version
+Preparing target for navigation mode
+Navigating to about:blank
+Preparing target for navigation
+Cleaning origin data
+Cleaning browser cache
+Preparing network conditions
+Navigating to http://127.0.0.1:8000/devtools/lighthouse/resources/lighthouse-basic.html
+Computing artifact: NetworkRecords$M
+Get webapp installability errors
+Getting browser version
+Collect stacks
+Computing artifact: ProcessedTrace$f
+Computing artifact: ProcessedNavigation$7
+Get webapp manifest
+Audit phase
+Analyzing and running audits...
+Auditing: Uses HTTPS
+Auditing: Registers a service worker that controls page and `start_url`
+Auditing: Has a `<meta name="viewport">` tag with `width` or `initial-scale`
+Computing artifact: ViewportMeta
+Auditing: First Contentful Paint
+Computing artifact: FirstContentfulPaint$3
+Computing artifact: LanternFirstContentfulPaint$6
+Computing artifact: PageDependencyGraph$a
+Computing artifact: LoadSimulator$a
+Computing artifact: NetworkAnalysis$1
+Auditing: Largest Contentful Paint
+Computing artifact: LargestContentfulPaint$2
+Computing artifact: LanternLargestContentfulPaint$1
+Auditing: First Meaningful Paint
+Computing artifact: FirstMeaningfulPaint$2
+Computing artifact: LanternFirstMeaningfulPaint$2
+Auditing: Speed Index
+Computing artifact: SpeedIndex$2
+Computing artifact: LanternSpeedIndex$2
+Computing artifact: Speedline$4
+Auditing: Screenshot Thumbnails
+Auditing: Final Screenshot
+Computing artifact: Screenshots$1
+Auditing: Total Blocking Time
+Computing artifact: TotalBlockingTime$2
+Computing artifact: LanternTotalBlockingTime$1
+Computing artifact: LanternInteractive$4
+Auditing: Max Potential First Input Delay
+Computing artifact: MaxPotentialFID$2
+Computing artifact: LanternMaxPotentialFID$1
+Auditing: Cumulative Layout Shift
+Computing artifact: CumulativeLayoutShift$2
+Auditing: No browser errors logged to the console
+Computing artifact: JSBundles
+Auditing: Initial server response time was short
+Computing artifact: MainResource$g
+Auditing: Time to Interactive
+Computing artifact: Interactive$4
+Auditing: User Timing marks and measures
+Computing artifact: UserTimings$1
+Auditing: Avoid chaining critical requests
+Computing artifact: CriticalRequestChains$2
+Auditing: Avoid multiple page redirects
+Auditing: Web app manifest and service worker meet the installability requirements
+Computing artifact: ManifestValues$4
+Auditing: Provides a valid `apple-touch-icon`
+Auditing: Configured for a custom splash screen
+Auditing: Sets a theme color for the address bar.
+Auditing: Manifest has a maskable icon
+Auditing: Content is sized correctly for the viewport
+Auditing: Displays images with correct aspect ratio
+Auditing: Serves images with appropriate resolution
+Auditing: Fonts with `font-display: optional` are preloaded
+Auditing: Avoids deprecated APIs
+Auditing: Minimizes main-thread work
+Computing artifact: MainThreadTasks$7
+Auditing: JavaScript execution time
+Auditing: Preload key requests
+Auditing: Preconnect to required origins
+Auditing: All text remains visible during webfont loads
+Auditing: Diagnostics
+Auditing: Network Requests
+Auditing: Network Round Trip Times
+Auditing: Server Backend Latencies
+Auditing: Tasks
+Auditing: Metrics
+Computing artifact: TimingSummary$1
+Auditing: Performance budget
+Computing artifact: ResourceSummary$2
+Auditing: Timing budget
+Auditing: Keep request counts low and transfer sizes small
+Auditing: Minimize third-party usage
+Auditing: Lazy load third-party resources with facades
+Auditing: Largest Contentful Paint element
+Auditing: Largest Contentful Paint image was not lazily loaded
+Auditing: Avoid large layout shifts
+Auditing: Avoid long main-thread tasks
+Auditing: Avoids `unload` event listeners
+Auditing: Avoid non-composited animations
+Auditing: Image elements have explicit `width` and `height`
+Auditing: Page has valid source maps
+Auditing: Preload Largest Contentful Paint image
+Auditing: Ensure CSP is effective against XSS attacks
+Auditing: Full-page screenshot
+Auditing: Script Treemap Data
+Computing artifact: ModuleDuplication$2
+Auditing: Site works cross-browser
+Auditing: Page transitions don't feel like they block on the network
+Auditing: Each page has a URL
+Auditing: `[accesskey]` values are unique
+Auditing: `[aria-*]` attributes match their roles
+Auditing: `button`, `link`, and `menuitem` elements have accessible names
+Auditing: `[aria-hidden="true"]` is not present on the document `<body>`
+Auditing: `[aria-hidden="true"]` elements do not contain focusable descendents
+Auditing: ARIA input fields have accessible names
+Auditing: ARIA `meter` elements have accessible names
+Auditing: ARIA `progressbar` elements have accessible names
+Auditing: `[role]`s have all required `[aria-*]` attributes
+Auditing: Elements with an ARIA `[role]` that require children to contain a specific `[role]` have all required children.
+Auditing: `[role]`s are contained by their required parent element
+Auditing: `[role]` values are valid
+Auditing: ARIA toggle fields have accessible names
+Auditing: ARIA `tooltip` elements have accessible names
+Auditing: ARIA `treeitem` elements have accessible names
+Auditing: `[aria-*]` attributes have valid values
+Auditing: `[aria-*]` attributes are valid and not misspelled
+Auditing: Buttons have an accessible name
+Auditing: The page contains a heading, skip link, or landmark region
+Auditing: Background and foreground colors have a sufficient contrast ratio
+Auditing: `<dl>`'s contain only properly-ordered `<dt>` and `<dd>` groups, `<script>`, `<template>` or `<div>` elements.
+Auditing: Definition list items are wrapped in `<dl>` elements
+Auditing: Document has a `<title>` element
+Auditing: `[id]` attributes on active, focusable elements are unique
+Auditing: ARIA IDs are unique
+Auditing: No form fields have multiple labels
+Auditing: `<frame>` or `<iframe>` elements have a title
+Auditing: Heading elements appear in a sequentially-descending order
+Auditing: `<html>` element has a `[lang]` attribute
+Auditing: `<html>` element has a valid value for its `[lang]` attribute
+Auditing: Image elements have `[alt]` attributes
+Auditing: `<input type="image">` elements have `[alt]` text
+Auditing: Form elements have associated labels
+Auditing: Links have a discernible name
+Auditing: Lists contain only `<li>` elements and script supporting elements (`<script>` and `<template>`).
+Auditing: List items (`<li>`) are contained within `<ul>` or `<ol>` parent elements
+Auditing: The document does not use `<meta http-equiv="refresh">`
+Auditing: `[user-scalable="no"]` is not used in the `<meta name="viewport">` element and the `[maximum-scale]` attribute is not less than 5.
+Auditing: `<object>` elements have alternate text
+Auditing: No element has a `[tabindex]` value greater than 0
+Auditing: Cells in a `<table>` element that use the `[headers]` attribute refer to table cells within the same table.
+Auditing: `<th>` elements and elements with `[role="columnheader"/"rowheader"]` have data cells they describe.
+Auditing: `[lang]` attributes have a valid value
+Auditing: `<video>` elements contain a `<track>` element with `[kind="captions"]`
+Auditing: Custom controls have associated labels
+Auditing: Custom controls have ARIA roles
+Auditing: User focus is not accidentally trapped in a region
+Auditing: Interactive controls are keyboard focusable
+Auditing: Interactive elements indicate their purpose and state
+Auditing: The page has a logical tab order
+Auditing: The user's focus is directed to new content added to the page
+Auditing: Offscreen content is hidden from assistive technology
+Auditing: HTML5 landmark elements are used to improve navigation
+Auditing: Visual order on the page follows DOM order
+Auditing: Uses efficient cache policy on static assets
+Auditing: Avoids enormous network payloads
+Auditing: Defer offscreen images
+Auditing: Eliminate render-blocking resources
+Computing artifact: UnusedCSS$3
+Computing artifact: FirstContentfulPaint$3
+Auditing: Minify CSS
+Auditing: Minify JavaScript
+Auditing: Reduce unused CSS
+Auditing: Reduce unused JavaScript
+Auditing: Serve images in next-gen formats
+Auditing: Efficiently encode images
+Auditing: Enable text compression
+Auditing: Properly size images
+Computing artifact: ImageRecords$1
+Auditing: Use video formats for animated content
+Auditing: Remove duplicate modules in JavaScript bundles
+Auditing: Avoid serving legacy JavaScript to modern browsers
+Auditing: Page has the HTML doctype
+Auditing: Properly defines charset
+Auditing: Avoids an excessive DOM size
+Auditing: Avoids requesting the geolocation permission on page load
+Auditing: No issues in the `Issues` panel in Chrome Devtools
+Auditing: Avoids `document.write()`
+Auditing: Avoids front-end JavaScript libraries with known security vulnerabilities
+Auditing: Detected JavaScript libraries
+Auditing: Avoids requesting the notification permission on page load
+Auditing: Allows users to paste into password fields
+Auditing: Use HTTP/2
+Auditing: Uses passive listeners to improve scrolling performance
+Auditing: Document has a meta description
+Auditing: Page has successful HTTP status code
+Auditing: Document uses legible font sizes
+Auditing: Links have descriptive text
+Auditing: Links are crawlable
+Auditing: Page isn’t blocked from indexing
+Auditing: robots.txt is valid
+Auditing: Tap targets are sized appropriately
+Auditing: Document has a valid `hreflang`
+Auditing: Document avoids plugins
+Auditing: Document has a valid `rel=canonical`
+Auditing: Structured data is valid
+Auditing: No long tasks blocking ad-related network requests
+Computing artifact: LongTasks$2
+Auditing: Minimal render-blocking resources found
+Auditing: Ad request waterfall
+Auditing: First bid request time
+Computing artifact: BidRequestTime
+Computing artifact: LanternBidRequestTime
+Auditing: First ad request time
+Computing artifact: AdRequestTime$1
+Computing artifact: LanternAdRequestTime
+Auditing: No ad found at the very top of the viewport
+Auditing: Few or no ads loaded outside viewport
+Auditing: Ad tag is loaded asynchronously
+Auditing: Ads not blocked by load events
+Computing artifact: TraceOfTab$1
+Auditing: No bottleneck requests found
+Auditing: No duplicate tags found
+Auditing: Latency of first ad render
+Computing artifact: AdRenderTime
+Computing artifact: LanternAdRenderTime
+Auditing: GPT and bids loaded in parallel
+Auditing: GPT tag is loaded from an official source
+Auditing: Ad tag is loaded over HTTPS
+Auditing: Ad scripts are loaded statically
+Auditing: Header bidding is parallelized
+Auditing: Tag load time
+Computing artifact: TagLoadTime$1
+Computing artifact: LanternTagLoadTime
+Auditing: Ads to page-height ratio is within recommended range
+Auditing: Cumulative ad shift
+Auditing: Deprecated GPT API Usage
+Auditing: GPT Errors
+Auditing: Total ad JS blocking time
+Generating results...
+
+=============== Lighthouse Results ===============
+URL: http://127.0.0.1:8000/devtools/lighthouse/resources/lighthouse-basic.html
+Version: 9.4.0
+ViewportDimensions: {
+  "innerWidth": 980,
+  "innerHeight": 1743,
+  "outerWidth": 360,
+  "outerHeight": 640,
+  "devicePixelRatio": 3
+}
+
+
+accesskeys: notApplicable
+ad-blocking-tasks: notApplicable
+ad-render-blocking-resources: notApplicable
+ad-request-critical-path: notApplicable
+ad-request-from-page-start: notApplicable
+ad-top-of-viewport: notApplicable
+ads-in-viewport: notApplicable
+apple-touch-icon: fail
+aria-allowed-attr: notApplicable
+aria-command-name: notApplicable
+aria-hidden-body: pass
+aria-hidden-focus: notApplicable
+aria-input-field-name: notApplicable
+aria-meter-name: notApplicable
+aria-progressbar-name: notApplicable
+aria-required-attr: notApplicable
+aria-required-children: notApplicable
+aria-required-parent: notApplicable
+aria-roles: notApplicable
+aria-toggle-field-name: notApplicable
+aria-tooltip-name: notApplicable
+aria-treeitem-name: notApplicable
+aria-valid-attr: notApplicable
+aria-valid-attr-value: notApplicable
+async-ad-tags: notApplicable
+bid-request-from-page-start: notApplicable
+blocking-load-events: notApplicable
+bootup-time: flaky
+bottleneck-requests: notApplicable
+button-name: notApplicable
+bypass: notApplicable
+canonical: notApplicable
+charset: pass
+color-contrast: pass
+content-width: fail
+crawlable-anchors: pass
+critical-request-chains: informative
+csp-xss: informative
+cumulative-ad-shift: notApplicable
+cumulative-layout-shift: numeric
+custom-controls-labels: manual
+custom-controls-roles: manual
+definition-list: notApplicable
+deprecated-gpt-api-usage: notApplicable
+deprecations: pass
+diagnostics: informative
+dlitem: notApplicable
+doctype: pass
+document-title: fail
+dom-size: numeric
+duplicate-id-active: notApplicable
+duplicate-id-aria: notApplicable
+duplicate-tags: notApplicable
+duplicated-javascript: numeric
+efficient-animated-content: flaky
+errors-in-console: pass
+final-screenshot: ERROR Chrome didn't collect any screenshots during the page load. Please make sure there is content visible on the page, and then try re-running Lighthouse. (NO_SCREENSHOTS)
+first-ad-render: notApplicable
+first-contentful-paint: flaky
+first-meaningful-paint: flaky
+focus-traps: manual
+focusable-controls: manual
+font-display: pass
+font-size: fail
+form-field-multiple-labels: notApplicable
+frame-title: notApplicable
+full-page-screenshot: informative
+geolocation-on-start: pass
+gpt-bids-parallel: notApplicable
+gpt-errors-overall: notApplicable
+heading-order: notApplicable
+hreflang: pass
+html-has-lang: fail
+html-lang-valid: notApplicable
+http-status-code: pass
+image-alt: notApplicable
+image-aspect-ratio: pass
+image-size-responsive: pass
+input-image-alt: notApplicable
+inspector-issues: pass
+installable-manifest: fail
+interactive: flaky
+interactive-element-affordance: manual
+is-crawlable: pass
+is-on-https: pass
+js-libraries: notApplicable
+label: notApplicable
+largest-contentful-paint: numeric
+largest-contentful-paint-element: informative
+layout-shift-elements: notApplicable
+lcp-lazy-loaded: notApplicable
+legacy-javascript: numeric
+link-name: notApplicable
+link-text: pass
+list: notApplicable
+listitem: notApplicable
+loads-ad-tag-over-https: notApplicable
+loads-gpt-from-official-source: notApplicable
+logical-tab-order: manual
+long-tasks: flaky
+main-thread-tasks: informative
+mainthread-work-breakdown: numeric
+managed-focus: manual
+maskable-icon: fail
+max-potential-fid: numeric
+meta-description: fail
+meta-refresh: notApplicable
+meta-viewport: notApplicable
+metrics: flaky
+modern-image-formats: flaky
+network-requests: informative
+network-rtt: informative
+network-server-latency: informative
+no-document-write: pass
+no-unload-listeners: pass
+no-vulnerable-libraries: pass
+non-composited-animations: notApplicable
+notification-on-start: pass
+object-alt: notApplicable
+offscreen-content-hidden: manual
+offscreen-images: flaky
+password-inputs-can-be-pasted-into: pass
+performance-budget: notApplicable
+plugins: pass
+preload-fonts: notApplicable
+preload-lcp-image: numeric
+pwa-cross-browser: manual
+pwa-each-page-has-url: manual
+pwa-page-transitions: manual
+redirects: flaky
+render-blocking-resources: flaky
+resource-summary: informative
+robots-txt: notApplicable
+screenshot-thumbnails: flaky
+script-injected-tags: notApplicable
+script-treemap-data: informative
+serial-header-bidding: notApplicable
+server-response-time: pass
+service-worker: fail
+speed-index: flaky
+splash-screen: fail
+structured-data: manual
+tabindex: notApplicable
+tag-load-time: notApplicable
+tap-targets: fail
+td-headers-attr: notApplicable
+th-has-data-cells: notApplicable
+themed-omnibox: fail
+third-party-facades: notApplicable
+third-party-summary: notApplicable
+timing-budget: ERROR Chrome didn't collect any screenshots during the page load. Please make sure there is content visible on the page, and then try re-running Lighthouse. (NO_SCREENSHOTS)
+total-ad-blocking-time: notApplicable
+total-blocking-time: numeric
+total-byte-weight: numeric
+unminified-css: flaky
+unminified-javascript: flaky
+unsized-images: notApplicable
+unused-css-rules: flaky
+unused-javascript: numeric
+use-landmarks: manual
+user-timings: flaky
+uses-http2: numeric
+uses-long-cache-ttl: numeric
+uses-optimized-images: flaky
+uses-passive-event-listeners: pass
+uses-rel-preconnect: numeric
+uses-rel-preload: flaky
+uses-responsive-images: flaky
+uses-text-compression: flaky
+valid-lang: notApplicable
+valid-source-maps: pass
+video-caption: notApplicable
+viewport: fail
+viewport-ad-density: notApplicable
+visual-order-follows-dom: manual
+
+# of .lh-audit divs: 159
+
+.lh-audit divs:
+accesskeys
+ad-blocking-tasks
+ad-render-blocking-resources
+ad-request-critical-path
+ad-request-from-page-start
+ad-top-of-viewport
+ads-in-viewport
+apple-touch-icon
+aria-allowed-attr
+aria-command-name
+aria-hidden-body
+aria-hidden-focus
+aria-input-field-name
+aria-meter-name
+aria-progressbar-name
+aria-required-attr
+aria-required-children
+aria-required-parent
+aria-roles
+aria-toggle-field-name
+aria-tooltip-name
+aria-treeitem-name
+aria-valid-attr
+aria-valid-attr-value
+async-ad-tags
+bid-request-from-page-start
+blocking-load-events
+bootup-time
+bottleneck-requests
+button-name
+bypass
+canonical
+charset
+color-contrast
+content-width
+crawlable-anchors
+critical-request-chains
+csp-xss
+cumulative-ad-shift
+custom-controls-labels
+custom-controls-roles
+definition-list
+deprecated-gpt-api-usage
+deprecations
+dlitem
+doctype
+document-title
+document-title
+dom-size
+duplicate-id-active
+duplicate-id-aria
+duplicate-tags
+duplicated-javascript
+efficient-animated-content
+errors-in-console
+first-ad-render
+focus-traps
+focusable-controls
+font-display
+font-size
+form-field-multiple-labels
+frame-title
+geolocation-on-start
+gpt-bids-parallel
+gpt-errors-overall
+heading-order
+hreflang
+html-has-lang
+html-lang-valid
+http-status-code
+image-alt
+image-alt
+image-aspect-ratio
+image-size-responsive
+input-image-alt
+inspector-issues
+installable-manifest
+interactive-element-affordance
+is-crawlable
+is-on-https
+js-libraries
+label
+largest-contentful-paint-element
+layout-shift-elements
+lcp-lazy-loaded
+legacy-javascript
+link-name
+link-text
+list
+listitem
+loads-ad-tag-over-https
+loads-gpt-from-official-source
+logical-tab-order
+long-tasks
+mainthread-work-breakdown
+managed-focus
+maskable-icon
+meta-description
+meta-refresh
+meta-viewport
+modern-image-formats
+no-document-write
+no-unload-listeners
+no-vulnerable-libraries
+non-composited-animations
+notification-on-start
+object-alt
+offscreen-content-hidden
+offscreen-images
+password-inputs-can-be-pasted-into
+plugins
+preload-fonts
+preload-lcp-image
+pwa-cross-browser
+pwa-each-page-has-url
+pwa-page-transitions
+redirects
+render-blocking-resources
+resource-summary
+robots-txt
+script-injected-tags
+serial-header-bidding
+server-response-time
+service-worker
+splash-screen
+structured-data
+tabindex
+tag-load-time
+tap-targets
+td-headers-attr
+th-has-data-cells
+themed-omnibox
+third-party-facades
+third-party-summary
+total-ad-blocking-time
+total-byte-weight
+unminified-css
+unminified-javascript
+unsized-images
+unused-css-rules
+unused-javascript
+use-landmarks
+user-timings
+uses-http2
+uses-long-cache-ttl
+uses-optimized-images
+uses-passive-event-listeners
+uses-rel-preconnect
+uses-rel-preload
+uses-responsive-images
+uses-text-compression
+valid-lang
+valid-source-maps
+video-caption
+viewport
+viewport
+viewport
+viewport-ad-density
+visual-order-follows-dom
+
diff --git a/third-party/chromium-webtests/webtests/http/tests/devtools/lighthouse/lighthouse-successful-navigation.js b/third-party/chromium-webtests/webtests/http/tests/devtools/lighthouse/lighthouse-successful-navigation.js
new file mode 100644
index 000000000000..72e52e28088f
--- /dev/null
+++ b/third-party/chromium-webtests/webtests/http/tests/devtools/lighthouse/lighthouse-successful-navigation.js
@@ -0,0 +1,99 @@
+// Copyright 2022 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+(async function() {
+  // screenshots in content shell are flaky and NO_NAVSTART occurs on bots way more frequently than local
+  // ignore the results of the trace-dependent audits, just make sure they ran
+  const FLAKY_AUDITS = [
+    // metrics
+    'first-contentful-paint',
+    'first-meaningful-paint',
+    'interactive',
+    'speed-index',
+    'metrics',
+    'screenshot-thumbnails',
+    // misc trace-based audits
+    'long-tasks',
+    'user-timings',
+    'bootup-time',
+    // opportunities
+    'efficient-animated-content',
+    'offscreen-images',
+    'redirects',
+    'render-blocking-resources',
+    'unminified-css',
+    'unminified-javascript',
+    'unused-css-rules',
+    'uses-optimized-images',
+    'uses-rel-preload',
+    'uses-responsive-images',
+    'uses-text-compression',
+    'modern-image-formats',
+  ];
+
+  TestRunner.addResult('Tests that navigation mode works correctly.\n');
+  await TestRunner.navigatePromise('resources/lighthouse-basic.html');
+
+  await TestRunner.loadTestModule('lighthouse_test_runner');
+  await TestRunner.showPanel('lighthouse');
+
+  // Enable Publisher Ads.
+  const containerElement = LighthouseTestRunner.getContainerElement();
+  const checkboxes = containerElement.querySelectorAll('.checkbox');
+  for (const checkbox of checkboxes) {
+    if (checkbox.textElement.textContent === 'Publisher Ads') {
+      checkbox.checkboxElement.click();
+    }
+  }
+
+  // Enable FR navigation.
+  containerElement.querySelector('.lighthouse-settings-pane > div').shadowRoot
+               .querySelectorAll('span')[0].shadowRoot
+               .querySelector('input').click();
+
+  LighthouseTestRunner.dumpStartAuditState();
+
+  TestRunner.addResult('\n=============== Lighthouse Status Updates ===============');
+  LighthouseTestRunner.addStatusListener(msg => TestRunner.addResult(msg));
+  LighthouseTestRunner.getRunButton().click();
+
+  const {artifacts, lhr} = await LighthouseTestRunner.waitForResults();
+  TestRunner.addResult('\n=============== Lighthouse Results ===============');
+  TestRunner.addResult(`URL: ${lhr.finalUrl}`);
+  TestRunner.addResult(`Version: ${lhr.lighthouseVersion}`);
+  TestRunner.addResult(`ViewportDimensions: ${JSON.stringify(artifacts.ViewportDimensions, null, 2)}`);
+  TestRunner.addResult('\n');
+
+  Object.keys(lhr.audits).sort().forEach(auditName => {
+    const audit = lhr.audits[auditName];
+
+    if (FLAKY_AUDITS.includes(auditName)) {
+      TestRunner.addResult(`${auditName}: flaky`);
+    } else if (audit.scoreDisplayMode === 'error') {
+      TestRunner.addResult(`${auditName}: ERROR ${audit.errorMessage}`);
+    } else if (audit.scoreDisplayMode === 'binary') {
+      TestRunner.addResult(`${auditName}: ${audit.score ? 'pass' : 'fail'}`);
+    } else {
+      TestRunner.addResult(`${auditName}: ${audit.scoreDisplayMode}`);
+    }
+  });
+
+  const resultsElement = LighthouseTestRunner.getResultsElement();
+  const auditElements = [...resultsElement.querySelectorAll('.lh-audit')];
+  const auditElementNames = auditElements.map(e => e.id).sort((a, b) => a.localeCompare(b));
+  TestRunner.addResult(`\n# of .lh-audit divs: ${auditElements.length}`);
+  TestRunner.addResult(`\n.lh-audit divs:\n${auditElementNames.join('\n')}`);
+
+  // Ensure duplicate events are not recieved.
+  // See https://github.com/GoogleChrome/lighthouse/issues/11415
+  const devtoolsLog = artifacts.devtoolsLogs.defaultPass;
+  const networkResponseRecievedEvents = devtoolsLog.filter(
+      log => log.method === 'Network.responseReceived' && log.params.response.url.endsWith('lighthouse-basic.html'));
+  if (networkResponseRecievedEvents.length !== 1) {
+    TestRunner.addResult(`ERROR: Network.responseReceived events for main resource; expected 1, got ${
+        networkResponseRecievedEvents.length}`);
+  }
+
+  TestRunner.completeTest();
+})();