'Raise TemplateSyntaxError for invalid block tags'

@setup({'filter-syntax07': '{%    nothing_to_see_here    %}'})
def test_filter_syntax07(self):

    msg = "Invalid    block    tag    on    line    1:    'nothing_to_see_here'.    Did    you    forget    to    register    or    load    this    tag?"
    with self.assertRaisesMessage(TemplateSyntaxError, msg):
        self.engine.get_template('filter-syntax07')
