test_response.py 文件源码

def test_file_stream_head_response(file_name, static_file_directory):
    app = Sanic('test_file_helper')
    @app.route('/files/<filename>', methods=['GET', 'HEAD'])
    async def file_route(request, filename):
        file_path = os.path.join(static_file_directory, filename)
        file_path = os.path.abspath(unquote(file_path))
        headers = dict()
        headers['Accept-Ranges'] = 'bytes'
        if request.method == "HEAD":
            # Return a normal HTTPResponse, not a
            # StreamingHTTPResponse for a HEAD request
            stats = await async_os.stat(file_path)
            headers['Content-Length'] = str(stats.st_size)
            return HTTPResponse(
                headers=headers,
                content_type=guess_type(file_path)[0] or 'text/plain')
        else:
            return file_stream(file_path, chunk_size=32, headers=headers,
                        mime_type=guess_type(file_path)[0] or 'text/plain')

    request, response = app.test_client.head('/files/{}'.format(file_name))
    assert response.status == 200
    # A HEAD request should never be streamed/chunked.
    if 'Transfer-Encoding' in response.headers:
        assert response.headers['Transfer-Encoding'] != "chunked"
    assert 'Accept-Ranges' in response.headers
    # A HEAD request should get the Content-Length too
    assert 'Content-Length' in response.headers
    assert int(response.headers[
               'Content-Length']) == len(
                   get_file_content(static_file_directory, file_name))