def test_encode_chunks_with_chunksize_none():
df = pandas.DataFrame(numpy.random.randn(6, 4), index=range(6))
chunks = list(load.encode_chunks(df))
assert len(chunks) == 1
remaining, buffer = chunks[0]
assert remaining == 0
assert len(buffer.readlines()) == 6
def test_encode_chunks_splits_dataframe():
df = pandas.DataFrame(numpy.random.randn(6, 4), index=range(6))
chunks = list(load.encode_chunks(df, chunksize=2))
assert len(chunks) == 3
remaining, buffer = chunks[0]
assert remaining == 4
assert len(buffer.readlines()) == 2