test_templates.py 文件源码

def test_template(self):
        # prepare a base template using the default engine
        template = Template("Hello {{name}}!")
        ctx = Context({'name': 'Django'})

        # (trace) the template rendering
        start = time.time()
        eq_(template.render(ctx), 'Hello Django!')
        end = time.time()

        # tests
        spans = self.tracer.writer.pop()
        assert spans, spans
        eq_(len(spans), 1)

        span = spans[0]
        eq_(span.span_type, 'template')
        eq_(span.name, 'django.template')
        eq_(span.get_tag('django.template_name'), 'unknown')
        assert start < span.start < span.start + span.duration < end