[tbb-bugs] #17785 [Tor Browser]: Unit tests for font whitelisting patch

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#17785: Unit tests for font whitelisting patch
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 Reporter:  arthuredelstein  |          Owner:  tbb-team
     Type:  defect           |         Status:  new
 Priority:  Medium           |      Milestone:
Component:  Tor Browser      |        Version:
 Severity:  Normal           |     Resolution:
 Keywords:                   |  Actual Points:
Parent ID:  #18097           |         Points:
  Sponsor:                   |
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Comment (by arthuredelstein):

 At present, the `font.system.whitelist` pref is static, so we can't easily
 write a mochitest. But I have written a manual test for enumerating
 available fonts. It can be tried here:
 https://arthuredelstein.github.io/tordemos/enumerate-fonts.html

 I'll report results for this test tomorrow on various platforms tomorrow.

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Ticket URL: <https://trac.torproject.org/projects/tor/ticket/17785#comment:4>
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