django.test.Client and response.content vs. streaming_content

Question

I have a Django test that accesses a web page using the Django test client. In one of the tests, the server returns a ZIP file as an attachment. I access the content of the ZIP file with the following code: ``` zip_content = StringIO(response.content) zip = ZipFile(zip_content) ``` This causes the following deprecation warning: D:/Developments/Archaeology/DB/ArtefactDatabase/Webserver\importexport	ests	est_import.py:1: DeprecationWarning: Accessing the `content` attribute on a streaming response is deprecated. Use the `streaming_content` attribute instead.` `response.streaming_content` returns some sort of map, which is definitely not a file-like object that's required for `ZipFile`. How can I use the `streaming_content` attribute for this? Incidentally, I only get the deprecation warning when passing `response.content` to a `StringIO`, when I access the response.content of an ordinary HTML page, there's no warning.

Accepted Answer

Using Python 3.4.

with String:

```
zip_content = io.StringIO("".join(response.streaming_content))
zip = ZipFile(zip_content)
```

with Bytes:

```
zip_content = io.BytesIO(b"".join(response.streaming_content))
zip = ZipFile(zip_content)
```

Solution found in TestStreamingMixin of https://github.com/sio2project/oioioi/blob/master/oioioi/filetracker/tests.py

See also: https://docs.djangoproject.com/en/1.7/ref/request-response/

You might want to test whether the response is a stream by checking `response.streaming` (boolean).

django.test.Client and response.content vs. streaming_content

Solution

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