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Test Pandas Series is writeable #3995

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58b4909
Fix Pandas test name
jakirkham Jul 22, 2020
83b4752
Test writing to Pandas Series after serialization
jakirkham Jul 22, 2020
fb21986
Merge dask/master into jakirkham/tst_pandas_series_writeable
jakirkham Jul 31, 2020
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20 changes: 18 additions & 2 deletions distributed/protocol/tests/test_pandas.py
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Original file line number Diff line number Diff line change
Expand Up @@ -4,7 +4,14 @@

from dask.dataframe.utils import assert_eq

from distributed.protocol import serialize, deserialize, decompress
from distributed.protocol import (
serialize,
deserialize,
decompress,
dumps,
loads,
to_serialize,
)


dfs = [
Expand Down Expand Up @@ -63,10 +70,19 @@


@pytest.mark.parametrize("df", dfs)
def test_dumps_serialize_numpy(df):
def test_dumps_serialize_pandas(df):
header, frames = serialize(df)
if "compression" in header:
frames = decompress(header, frames)
df2 = deserialize(header, frames)

assert_eq(df, df2)


def test_dumps_pandas_writable():
a1 = np.arange(1000)
a1.flags.writeable = False
s1 = pd.Series(a1)
(s2,) = loads(dumps([to_serialize(s1)]))
assert (s1 == s2).all()
s2[...] = 0