python之使用请求正文的单元测试 bottle py 应用程序导致 KeyError : 'wsgi.input'

当对一个 bottle py 路由函数进行单元测试时:

from bottle import request, run, post 
@post("/blah/<boo>") 
def blah(boo): 
    body = request.body.readline() 
    return "body is %s" % body 
blah("booooo!") 

引发了以下异常:

Traceback (most recent call last): 
  File "<stdin>", line 1, in <module> 
  File "<stdin>", line 3, in blah 
  File "bottle.py", line 1197, in body 
    self._body.seek(0) 
  File "bottle.py", line 166, in __get__ 
    if key not in storage: storage[key] = self.getter(obj) 
  File "bottle.py", line 1164, in _body 
    read_func = self.environ['wsgi.input'].read 
KeyError: 'wsgi.input' 

如果通过 bottle 的 run 函数作为服务器运行，代码将工作，这纯粹是当我将它作为一个普通的 Python 函数调用时，例如在单元测试中。

我错过了什么？我如何在单元测试中将其作为普通的 python func 调用？

请您参考如下方法:

我最终弄清楚了问题所在。我需要“伪造” Bottle 的请求环境才能正常播放:

from bottle import request, run, post, tob 
from io import BytesIO 
body = "abc" 
request.environ['CONTENT_LENGTH'] = str(len(tob(body))) 
request.environ['wsgi.input'] = BytesIO() 
request.environ['wsgi.input'].write(tob(body)) 
request.environ['wsgi.input'].seek(0) 
# Now call your route function and assert