Assert equality, not object identity of sets in sparsity constructor
Minor refactoring of matrix unit tests.
Import numpy as np in test_matrices unit test
Docstrings for test_matrices
Check consistency of Map tosets for par_loop Mat arguments
Docstrings for indirect loop unit tests
Import numpy as np in indirect loop unit test
Add unit tests for mismatching itersets and tosets when calling par_loop
Assert that maps used in par_loop arguments are initialized and test for it
Docstrings for direct loop unit tests
Import numpy as np in direct loop unit test