'Test str_replace_strict function with empty params.'

def test_str_replace_strict_empty_param_ok(self):

    snippet = {'str_replace_strict': {'template': 'Template    var1    string    var2', 'params': {'var1': 'foo', 'var2': ''}}}
    tmpl = template.Template(hot_ocata_tpl_empty)
    self.assertEqual('Template    foo    string    ', self.resolve(snippet, tmpl))
