test: add test of using bl chunk size None

hera_opm/tests/test_lstbin_makeflow.py

@@ -17,6 +17,7 @@ def make_lstbin_config_file(
     lstbin_opts=None,
     file_cfg=None,
     lstavg_opts=None,
+    bl_chunk_size: int | None = 5000,
 ):
     """Make a lstbin config file."""
     options = {
@@ -55,7 +56,7 @@ def make_lstbin_config_file(
     lstavg_opts = {
         **{
             "outdir": "../data",
-            "bl_chunk_size": 5000,
+            "bl_chunk_size": bl_chunk_size,
             "fname_format": "{inpaint_mode}/zen.{kind}.{lst:7.5f}.sum.uvh5",
             "overwrite": True,
             "write_med_mad": True,
@@ -104,6 +105,18 @@ def lsttoml_direct_datafiles(tmp_path_factory) -> Path:
     return fl
 
 
+@pytest.fixture(scope="module")
+def lsttoml_direct_datafiles_blchunk_none(tmp_path_factory) -> Path:
+    """Make a direct lstbin config file."""
+    fl = tmp_path_factory.mktemp("data") / "lstbin_direct.toml"
+    make_lstbin_config_file(
+        fl,
+        datafiles=["zen.2458043.40141.HH.uvh5", "zen.2458043.40887.HH.uvh5"],
+        bl_chunk_size=None,
+    )
+    return fl
+
+
 @pytest.fixture(scope="module")
 def lsttoml_direct_datafiles_glob(tmp_path_factory) -> Path:
     """Make a direct lstbin config file."""
@@ -161,6 +174,7 @@ def lsttoml_notebook_datafiles(
     "config_file",
     [
         "lsttoml_direct_datafiles",
+        "lsttoml_direct_datafiles_blchunk_none",
         "lsttoml_direct_datafiles_glob",
         "lsttoml_notebook_datafiles",
     ],