Tests that audits panel prevents run of unauditable pages.



**Prevents audit with no categories**

========== Lighthouse Start Audit State ==========
[ ] Performance
[ ] Progressive Web App
[ ] Best practices
[ ] Accessibility
[ ] SEO
[ ] Publisher Ads
[x] Clear storage
[x] Simulated throttling
Help text: At least one category must be selected.
Generate report: disabled visible


**Allows audit with a single category**

========== Lighthouse Start Audit State ==========
[x] Performance
[ ] Progressive Web App
[ ] Best practices
[ ] Accessibility
[ ] SEO
[ ] Publisher Ads
[x] Clear storage
[x] Simulated throttling
Generate report: enabled visible


**Allows audit on undockable page**

========== Lighthouse Start Audit State ==========
[x] Performance
[ ] Progressive Web App
[ ] Best practices
[ ] Accessibility
[ ] SEO
[ ] Publisher Ads
[x] Clear storage
[x] Simulated throttling
Generate report: enabled visible


**Prevents audit on internal page**
URL: about:blank

========== Lighthouse Start Audit State ==========
[x] Performance
[ ] Progressive Web App
[ ] Best practices
[ ] Accessibility
[ ] SEO
[ ] Publisher Ads
[x] Clear storage
[x] Simulated throttling
Help text: Can only audit HTTP/HTTPS pages and Chrome extensions. Navigate to a different page to start an audit.
Generate report: disabled visible

