def test_lowercase_html():
 dirty = u'<EM CLASS="FOO">BAR</EM>'
 clean = u'<em class="FOO">BAR</em>'
 eq_(clean, bleach.clean(dirty, attributes=['class']))

def test_lowercase_html ( ) : dirty = u'<EM CLASS="FOO">BAR</EM>' clean = u'<em class="FOO">BAR</em>' eq_ ( clean , bleach . clean ( dirty , attributes = [ 'class' ] ) )
we should output lowercase html .