Merge pull request #3445 from yt-project/amrex_dim_fix

Fix for 2D AMReX datasets in which 3 values are in the amr.n_cell entry in the job_info file.

tests/tests.yaml

@@ -138,7 +138,7 @@ answer_tests:
     - yt/frontends/boxlib/tests/test_outputs.py:test_units_override
     - yt/frontends/boxlib/tests/test_outputs.py:test_raw_fields
 
-  local_boxlib_particles_008:
+  local_boxlib_particles_009:
     - yt/frontends/boxlib/tests/test_outputs.py:test_LyA
     - yt/frontends/boxlib/tests/test_outputs.py:test_nyx_particle_io
     - yt/frontends/boxlib/tests/test_outputs.py:test_castro_particle_io

yt/frontends/boxlib/data_structures.py

@@ -751,9 +751,9 @@ def _parse_cparams(self):
                 # domain_dimensions to have three elements, with 1 in the additional
                 # slots if we're not in 3D, so append them as necessary.
 
-                if len(vals) == 1:
+                if self.dimensionality == 1:
                     vals = self.domain_dimensions = np.array([vals[0], 1, 1])
-                elif len(vals) == 2:
+                elif self.dimensionality == 2:
                     vals = self.domain_dimensions = np.array([vals[0], vals[1], 1])
             elif param == "amr.ref_ratio":
                 vals = self.refine_by = int(vals[0])