'Load and display the given test data.
Args:
path: The path to the test file, relative to the javascript/
folder.
**kwargs: Passed to jinja\'s template.render().'

def load(self, path, **kwargs):

    template = self._jinja_env.get_template(path)
    with self._qtbot.waitSignal(self.webview.loadFinished) as blocker:
        self.webview.setHtml(template.render(**kwargs))
    assert (blocker.args == [True])
