Test data for mongodb_log and mongodb_play

[hawesie]

I'd like to create some unit tests for the log and playback nodes. This will require a rosbag of previously logged data. I have a reasonable one of 40MB, but I don't think I should add this to github. @marc-hanheide any thoughts on where I should upload so that it can be easily accessible for jenkins tests and for people running tests locally?

[marc-hanheide]

owncloud? I created a directory unit_test_data/ under STRANDS data/. This directory is publicly available at https://lcas.lincoln.ac.uk/owncloud/index.php/s/6hYIdb1Gnk89AUv

Any file you put in there, can directly be downloaded from the URL

https://lcas.lincoln.ac.uk/owncloud/index.php/s/6hYIdb1Gnk89AUv/download?path=%2F&files=FILENAME, with FILENAME obviously replaced by the actual name of the file, so e.g. https://lcas.lincoln.ac.uk/owncloud/index.php/s/6hYIdb1Gnk89AUv/download?path=%2F&files=dummy.txt will download the file dummy.txt I put there for testing.

In CMake use the file DOWNLOAD command to download the file:

file(DOWNLOAD url file [INACTIVITY_TIMEOUT timeout]
     [TIMEOUT timeout] [STATUS status] [LOG log] [SHOW_PROGRESS]
     [EXPECTED_HASH ALGO=value] [EXPECTED_MD5 sum]
     [TLS_VERIFY on|off] [TLS_CAINFO file])

e.g.

file(DOWNLOAD 
    https://lcas.lincoln.ac.uk/owncloud/index.php/s/6hYIdb1Gnk89AUv/download?path=%2F&files=dummy.txt 
    dummy.txt
)

[marc-hanheide]

this discussion is also probably relevant for @cdondrup who is also implementing tests which rely on some data...