Fix Test Models

[mcnaughtonadm]

Overview

In the test file, test_linlog_model.py, there are imports of 6 "test models" as follows:

params=["teusink", "mendes", "textbook", "greene_small", "greene_large", "contador"]

as CobraPy has developed, some methods that may have worked in the initial test models no longer do. Therefore, to be useful as tests, the models must load correctly to be tested against the linlog_model methods.

Need

Out of the 6 total test models, 4 have issues with generating a valid cobra model.

• teusink
• mendes
• greene_small
• greene_large