def html_it():
    """Run coverage and make an HTML report for a."""
    import coverage
    cov = coverage.coverage()
    cov.start()
    import a            # pragma: nested
    cov.stop()          # pragma: nested
    cov.html_report(a, directory="../html_styled", extra_css="extra.css")

runfunc(html_it, rundir="src")

# HTML files will change often.  Check that the sizes are reasonable,
#   and check that certain key strings are in the output.
compare("gold_styled", "html_styled", size_within=10, file_pattern="*.html")
compare("gold_styled", "html_styled", size_within=10, file_pattern="*.css")
contains("html_styled/a_py.html",
    '<link rel="stylesheet" href="extra.css" type="text/css">',
    '<span class="key">if</span> <span class="num">1</span> <span class="op">&lt;</span> <span class="num">2</span>',
    '&nbsp; &nbsp; <span class="nam">a</span> <span class="op">=</span> <span class="num">3</span>',
    '<span class="pc_cov">67%</span>'
    )
contains("html_styled/index.html",
    '<link rel="stylesheet" href="extra.css" type="text/css">',
    '<a href="a_py.html">a.py</a>',
    '<span class="pc_cov">67%</span>'
    )

clean("html_styled")