mirror of https://github.com/pyodide/pyodide.git
31 lines
743 B
Python
31 lines
743 B
Python
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def test_zarr(selenium):
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selenium.load_package(["numpy", "numcodecs", "zarr"])
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selenium.run(
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r"""
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from numcodecs import Blosc
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import numpy as np
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import zarr
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# basic test
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z = zarr.zeros((1000, 1000), chunks=(100, 100), dtype='i4')
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assert z.shape == (1000, 1000)
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# test assignment
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z[0, :] = np.arange(1000)
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assert z[0,1] == 1
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# test saving and loading
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a1 = np.arange(10)
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zarr.save('/tmp/example.zarr', a1)
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a2 = zarr.load('/tmp/example.zarr')
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np.testing.assert_equal(a1, a2)
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# test compressor
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compressor = Blosc(cname='zstd', clevel=3, shuffle=Blosc.BITSHUFFLE)
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data = np.arange(10000, dtype='i4').reshape(100, 100)
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z = zarr.array(data, chunks=(10, 10), compressor=compressor)
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assert z.compressor == compressor
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"""
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)
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