51 lines
1.4 KiB
Python
51 lines
1.4 KiB
Python
import pytest
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import numpy as np
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from h5py import File
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from .common import TestCase
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from .data_files import get_data_file_path
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def test_vlen_big_endian():
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with File(get_data_file_path("vlen_string_s390x.h5")) as f:
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assert f.attrs["created_on_s390x"] == 1
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dset = f["DSvariable"]
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assert dset[0] == b"Parting"
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assert dset[1] == b"is such"
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assert dset[2] == b"sweet"
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assert dset[3] == b"sorrow..."
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dset = f["DSLEfloat"]
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assert dset[0] == 3.14
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assert dset[1] == 1.61
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assert dset[2] == 2.71
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assert dset[3] == 2.41
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assert dset[4] == 1.2
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assert dset.dtype == "<f8"
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# Same float values with big endianess
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assert f["DSBEfloat"][0] == 3.14
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assert f["DSBEfloat"].dtype == ">f8"
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assert f["DSLEint"][0] == 1
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assert f["DSLEint"].dtype == "<u8"
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# Same int values with big endianess
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assert f["DSBEint"][0] == 1
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assert f["DSBEint"].dtype == ">i8"
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class TestEndianess(TestCase):
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def test_simple_int_be(self):
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fname = self.mktemp()
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arr = np.ndarray(shape=(1,), dtype=">i4", buffer=bytearray([0, 1, 3, 2]))
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be_number = 0 * 256 ** 3 + 1 * 256 ** 2 + 3 * 256 ** 1 + 2 * 256 ** 0
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with File(fname, mode="w") as f:
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f.create_dataset("int", data=arr)
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with File(fname, mode="r") as f:
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assert f["int"][()][0] == be_number
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