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# (C) Copyright 2005-2025 Enthought, Inc., Austin, TX
# All rights reserved.
#
# This software is provided without warranty under the terms of the BSD
# license included in LICENSE.txt and may be redistributed only under
# the conditions described in the aforementioned license. The license
# is also available online at http://www.enthought.com/licenses/BSD.txt
#
# Thanks for using Enthought open source!
import unittest
from apptools._testing.optional_dependencies import (
numpy as np,
pandas,
tables,
requires_numpy,
requires_pandas,
requires_tables,
)
if np is not None and tables is not None:
from ..table_node import H5TableNode
from .utils import temp_h5_file
NODE = "/table_node"
@requires_numpy
@requires_tables
class TableNodeTestCase(unittest.TestCase):
def test_basics(self):
description = [("a", np.float64), ("b", np.float64)]
with temp_h5_file() as h5:
h5table = H5TableNode.add_to_h5file(h5, NODE, description)
h5table.append({"a": [1, 2], "b": [3, 4]})
np.testing.assert_allclose(h5table["a"], [1, 2])
np.testing.assert_allclose(h5table["b"], [3, 4])
dtype_description = np.dtype([("c", "f4"), ("d", "f4")])
with temp_h5_file() as h5:
h5table = H5TableNode.add_to_h5file(h5, NODE, dtype_description)
h5table.append({"c": [1.2, 3.4], "d": [5.6, 7.8]})
np.testing.assert_allclose(h5table["c"], [1.2, 3.4])
np.testing.assert_allclose(h5table["d"], [5.6, 7.8])
assert len(repr(h5table)) > 0
def test_getitem(self):
description = [("a", np.float64), ("b", np.float64)]
with temp_h5_file() as h5:
h5table = H5TableNode.add_to_h5file(h5, NODE, description)
h5table.append({"a": [1, 2], "b": [3, 4]})
np.testing.assert_allclose(h5table["a"], (1, 2))
np.testing.assert_allclose(h5table[["b", "a"]], [(3, 1), (4, 2)])
def test_keys(self):
description = [("hello", "int"), ("world", "int"), ("Qux1", "bool")]
with temp_h5_file() as h5:
keys = set(list(zip(*description))[0])
h5table = H5TableNode.add_to_h5file(h5, NODE, description)
assert set(h5table.keys()) == keys
@requires_pandas
def test_to_dataframe(self):
description = [("a", np.float64)]
with temp_h5_file() as h5:
h5table = H5TableNode.add_to_h5file(h5, NODE, description)
h5table.append({"a": [1, 2, 3]})
df = h5table.to_dataframe()
assert isinstance(df, pandas.DataFrame)
np.testing.assert_allclose(df["a"], h5table["a"])
if __name__ == "__main__":
from numpy import testing
testing.run_module_suite()
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