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import asyncio
import ijson
import pytest
def test_from_iter_read0_does_not_consume():
chunks = [b'{"key":', b'"value"}']
file_obj = ijson.from_iter(iter(chunks))
assert file_obj.read(0) == b""
assert file_obj.read(1) == b'{"key":'
assert file_obj.read(1) == b'"value"}'
assert file_obj.read(1) == b""
@pytest.mark.parametrize(
"chunks_factory",
[list, tuple, iter, lambda chunks: (chunk for chunk in chunks)],
ids=["list", "tuple", "iter", "generator"],
)
def test_from_iter_accepts_iterable(chunks_factory):
chunks = chunks_factory([b'{"key":', b'"value"}'])
file_obj = ijson.from_iter(chunks)
assert file_obj.read(1) == b'{"key":'
assert file_obj.read(1) == b'"value"}'
assert file_obj.read(1) == b""
@pytest.mark.parametrize(
"chunks_factory",
[list, tuple, iter, lambda chunks: (chunk for chunk in chunks)],
ids=["list", "tuple", "iter", "generator"],
)
def test_from_iter_accepts_string_and_warns(chunks_factory):
chunks = chunks_factory(['{"key":', '"value"}'])
file_obj = ijson.from_iter(chunks)
with pytest.deprecated_call():
assert file_obj.read(1) == b'{"key":'
assert file_obj.read(1) == b'"value"}'
assert file_obj.read(1) == b""
def test_from_iter_accepts_aiterable():
async def chunks():
yield b'{"key":'
yield b'"value"}'
async def main():
file_obj = ijson.from_iter(chunks())
assert await file_obj.read(0) == b""
assert await file_obj.read(1) == b'{"key":'
assert await file_obj.read(1) == b'"value"}'
assert await file_obj.read(1) == b""
asyncio.run(main())
def test_from_iter_accepts_async_string_chunks_and_warns():
async def chunks():
yield '{"key":'
yield '"value"}'
async def main():
file_obj = ijson.from_iter(chunks())
with pytest.deprecated_call():
assert await file_obj.read(1) == b'{"key":'
assert await file_obj.read(1) == b'"value"}'
assert await file_obj.read(1) == b""
asyncio.run(main())
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