doctests for error messages in groebner_fan.py

[sagetrac-mvngu]

This is a follow-up to ticket #5465. Here, we add some doctests to check the error messages being raised.

CC: @sagetrac-mhampton

Component: geometry

Keywords: groebner_fan.py

Issue created by migration from https://trac.sagemath.org/ticket/5619

[sagetrac-mvngu]

comment:1

The patch trac_5619-doctests.patch adds two doctests to groebner_fan.py. The doctests check the error messages that can be raised by the functions render() and render3d(). Currently, these error messages are of the NotImplementedError type. This patch depends on ticket #5465.

[sagetrac-mhampton]

comment:2

Attachment: trac_5619-doctests.patch.gz

These make sense, and appear to work. Positive review.

[sagetrac-mabshoff]

comment:3

Merged in Sage 4.0.rc0.

Cheers,

Michael