Refactor some HTML tests.
Refactor some HTML tests.

larsbutler/coveragepy,7WebPages/coveragepy,hugovk/coveragepy,nedbat/coveragepy,jayhetee/coveragepy,hugovk/coveragepy,jayhetee/coveragepy,blueyed/coveragepy,jayhetee/coveragepy,blueyed/coveragepy,larsbutler/coveragepy,hugovk/coveragepy,jayhetee/coveragepy,7WebPages/coveragepy,nedbat/coveragepy,jayhetee/coveragepy,7WebPages/coveragepy,nedbat/coveragepy,larsbutler/coveragepy,blueyed/coveragepy,larsbutler/coveragepy,nedbat/coveragepy,hugovk/coveragepy,hugovk/coveragepy,nedbat/coveragepy,7WebPages/coveragepy,blueyed/coveragepy,larsbutler/coveragepy,blueyed/coveragepy