test_bmi throws GRASS errors

[lrntct]

=============================================================== test session starts ===============================================================
platform linux -- Python 3.12.10, pytest-8.3.5, pluggy-1.6.0 -- /home/laurent/software/itzi/.venv/bin/python
cachedir: .pytest_cache
benchmark: 5.1.0 (defaults: timer=time.perf_counter disable_gc=False min_rounds=7 min_time=0.000005 max_time=1.0 calibration_precision=10 warmup=False warmup_iterations=100000)
rootdir: /home/laurent/software/itzi
configfile: pyproject.toml
plugins: cov-6.2.1, forked-1.6.0, benchmark-5.1.0
collected 29 items                                                                                                                                

tests/test_bmi.py::TestBmi::test_initialize PASSED                                                                                          [  3%]
tests/test_bmi.py::TestBmi::test_update PASSED                                                                                              [  6%]
tests/test_bmi.py::TestBmi::test_update_until PASSED                                                                                        [ 10%]
tests/test_bmi.py::TestBmi::test_finalize PASSED                                                                                            [ 13%]
tests/test_bmi.py::TestBmi::test_get_component_name PASSED                                                                                  [ 17%]
tests/test_bmi.py::TestBmi::test_get_input_item_count ERROR: Incomplete GRASS session: Variable 'LOCATION_NAME' not set
PASSED                                                                                [ 20%]
tests/test_bmi.py::TestBmi::test_get_output_item_count PASSED                                                                               [ 24%]
tests/test_bmi.py::TestBmi::test_get_input_var_names PASSED                                                                                 [ 27%]
tests/test_bmi.py::TestBmi::test_get_output_var_names PASSED                                                                                [ 31%]
tests/test_bmi.py::TestBmi::test_time_unit PASSED                                                                                           [ 34%]
tests/test_bmi.py::TestBmi::test_time_step PASSED                                                                                           [ 37%]
tests/test_bmi.py::TestBmi::test_start_time ERROR: Incomplete GRASS session: Variable 'LOCATION_NAME' not set
PASSED                                                                                          [ 41%]
tests/test_bmi.py::TestBmi::test_current_time PASSED                                                                                        [ 44%]
tests/test_bmi.py::TestBmi::test_get_var_type ERROR: Incomplete GRASS session: Variable 'LOCATION_NAME' not set
PASSED                                                                                        [ 48%]
tests/test_bmi.py::TestBmi::test_get_var_units PASSED                                                                                       [ 51%]
tests/test_bmi.py::TestBmi::test_get_var_nbytes PASSED                                                                                      [ 55%]
tests/test_bmi.py::TestBmi::test_get_var_itemsize ERROR: Incomplete GRASS session: Variable 'LOCATION_NAME' not set
PASSED                                                                                    [ 58%]
tests/test_bmi.py::TestBmi::test_get_var_location PASSED                                                                                    [ 62%]
tests/test_bmi.py::TestBmi::test_get_var_grid PASSED                                                                                        [ 65%]
tests/test_bmi.py::TestBmi::test_get_value_ptr PASSED                                                                                       [ 68%]
tests/test_bmi.py::TestBmi::test_get_value PASSED                                                                                           [ 72%]
tests/test_bmi.py::TestBmi::test_get_value_at_indices PASSED                                                                                [ 75%]
tests/test_bmi.py::TestBmi::test_set_value PASSED                                                                                           [ 79%]
tests/test_bmi.py::TestBmi::test_get_grid_rank ERROR: Incomplete GRASS session: Variable 'LOCATION_NAME' not set
PASSED                                                                                       [ 82%]
tests/test_bmi.py::TestBmi::test_get_grid_size PASSED                                                                                       [ 86%]
tests/test_bmi.py::TestBmi::test_get_grid_shape PASSED                                                                                      [ 89%]
tests/test_bmi.py::TestBmi::test_get_grid_spacing ERROR: Incomplete GRASS session: Variable 'LOCATION_NAME' not set
PASSED                                                                                    [ 93%]
tests/test_bmi.py::TestBmi::test_get_grid_origin PASSED                                                                                     [ 96%]
tests/test_bmi.py::TestBmi::test_get_grid_type ERROR: Incomplete GRASS session: Variable 'LOCATION_NAME' not set
PASSED                                                                                       [100%]

========================================================= 29 passed in 101.41s (0:01:41) ==========================================================

[lrntct]

Potentially related, the tests are brittle and fail seemingly at random