Use list of names, instead of pandas index. (#343)

src/hipscat_import/catalog/file_readers.py

@@ -192,7 +192,7 @@ def __init__(
         if self.column_names:
             self.kwargs["names"] = self.column_names
         elif not self.header and schema_parquet is not None:
-            self.kwargs["names"] = schema_parquet.columns
+            self.kwargs["names"] = list(schema_parquet.columns)
 
         if self.type_map:
             self.kwargs["dtype"] = self.type_map

tests/hipscat_import/catalog/test_argument_validation.py

@@ -1,8 +1,10 @@
 """Tests of argument validation"""
 
 import pytest
+from hipscat.io import write_metadata
 
 from hipscat_import.catalog.arguments import ImportArguments, check_healpix_order_range
+from hipscat_import.catalog.file_readers import CsvReader
 
 # pylint: disable=protected-access
 
@@ -206,6 +208,38 @@ def test_provenance_info(blank_data_dir, tmp_path):
     assert "epoch" in runtime_args
 
 
+def test_write_provenance_info(formats_dir, tmp_path):
+    """Verify that provenance info can be written to JSON file."""
+    input_file = formats_dir / "gaia_minimum.csv"
+    schema_file = formats_dir / "gaia_minimum_schema.parquet"
+
+    args = ImportArguments(
+        output_artifact_name="gaia_minimum",
+        input_file_list=[input_file],
+        file_reader=CsvReader(
+            comment="#",
+            header=None,
+            schema_file=schema_file,
+        ),
+        ra_column="ra",
+        dec_column="dec",
+        sort_columns="solution_id",
+        use_schema_file=schema_file,
+        output_path=tmp_path,
+        dask_tmp=tmp_path,
+        highest_healpix_order=2,
+        pixel_threshold=3_000,
+        progress_bar=False,
+    )
+
+    write_metadata.write_provenance_info(
+        catalog_base_dir=args.catalog_path,
+        dataset_info=args.to_catalog_info(0),
+        tool_args=args.provenance_info(),
+        storage_options=args.output_storage_options,
+    )
+
+
 def test_check_healpix_order_range():
     """Test method check_healpix_order_range"""
     check_healpix_order_range(5, "order_field")