金字塔 - 为文件上传表单编写单元测试

Question

我正在努力创建单元测试功能,负责上传从页面上的表单收到的图片.

主要问题是我无法弄清楚如何将图片添加到虚拟请求的发布参数,并因此将其传递给函数.

这是我试图测试的代码.

谢谢

@view_config(route_name='profile_pic')
def profilePictureUpload(request):
 if 'form.submitted' in request.params:
    #max picture size is 700kb
    form = Form(request, schema=PictureUpload)

    if request.method == 'POST' and form.validate():
        upload_directory = 'filesystem_path'
        upload = request.POST.get('profile')
        saved_file = str(upload_directory) + str(upload.filename)

        perm_file = open(saved_file, 'wb')
        shutil.copyfileobj(upload.file, perm_file)

        upload.file.close()
        perm_file.close()

    else:
        log.info(form.errors)
 redirect_url = route_url('profile', request)
 return HTTPFound(location=redirect_url)

Answer 1

使用客户端(upload.filename)提供的名称在文件系统上实际创建文件是非常糟糕的做法(以及潜在的安全漏洞).

有了这样的方式,我在你的代码中看到你打电话request.params,request.POST.get('profile'),upload.file和upload.filename.我们可以模拟所有这些,最终提供一个StringIO对象upload.file.

class MockCGIFieldStorage(object):
    pass

upload = MockCGIFieldStorage()
upload.file = StringIO('foo')
upload.filename = 'foo.html'

request = DummyRequest(post={'profile': upload, 'form.submitted': '1'})

response = profilePictureUpload(request)