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Add test for I/O of point maps #46

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Nov 1, 2024
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Merged

Add test for I/O of point maps #46

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12 changes: 12 additions & 0 deletions tests/hats/io/file_io/test_file_io_cloud.py
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Original file line number Diff line number Diff line change
@@ -1,10 +1,13 @@
import numpy as np
import pandas as pd
from hats.io import paths
from hats.io.file_io import (
load_csv_to_pandas,
load_text_file,
read_fits_image,
read_parquet_file_to_pandas,
write_dataframe_to_csv,
write_fits_image,
write_string_to_file,
)
from hats.io.paths import pixel_catalog_file
Expand Down Expand Up @@ -34,3 +37,12 @@ def test_write_df_to_csv(tmp_cloud_path):
write_dataframe_to_csv(random_df, test_file_path, index=False)
loaded_df = load_csv_to_pandas(test_file_path)
pd.testing.assert_frame_equal(loaded_df, random_df)


def test_write_point_map_roundtrip(small_sky_dir_cloud, tmp_cloud_path):
"""Test the reading/writing of a catalog point map"""
expected_counts_skymap = read_fits_image(paths.get_point_map_file_pointer(small_sky_dir_cloud))
output_map_pointer = paths.get_point_map_file_pointer(tmp_cloud_path)
write_fits_image(expected_counts_skymap, output_map_pointer)
counts_skymap = read_fits_image(output_map_pointer)
np.testing.assert_array_equal(counts_skymap, expected_counts_skymap)