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import pytest
import string
from random import randrange, choice
from psycopg.pq import Format
from psycopg import sql, errors as e
from psycopg.adapt import PyFormat
from psycopg.types.numeric import Int4
from ..utils import eur, gc_collect, gc_count
from ..test_copy import sample_text, sample_binary # noqa
from ..test_copy import sample_records
from ..test_copy_async import ensure_table
from .test_copy import sample_tabledef, copyopt
pytestmark = [pytest.mark.crdb, pytest.mark.asyncio]
@pytest.mark.parametrize(
"format, buffer",
[(Format.TEXT, "sample_text"), (Format.BINARY, "sample_binary")],
)
async def test_copy_in_buffers(aconn, format, buffer):
cur = aconn.cursor()
await ensure_table(cur, sample_tabledef)
async with cur.copy(f"copy copy_in from stdin {copyopt(format)}") as copy:
await copy.write(globals()[buffer])
await cur.execute("select * from copy_in order by 1")
data = await cur.fetchall()
assert data == sample_records
async def test_copy_in_buffers_pg_error(aconn):
cur = aconn.cursor()
await ensure_table(cur, sample_tabledef)
with pytest.raises(e.UniqueViolation):
async with cur.copy("copy copy_in from stdin") as copy:
await copy.write(sample_text)
await copy.write(sample_text)
assert aconn.info.transaction_status == aconn.TransactionStatus.INERROR
async def test_copy_in_str(aconn):
cur = aconn.cursor()
await ensure_table(cur, sample_tabledef)
async with cur.copy("copy copy_in from stdin") as copy:
await copy.write(sample_text.decode())
await cur.execute("select * from copy_in order by 1")
data = await cur.fetchall()
assert data == sample_records
@pytest.mark.xfail(reason="bad sqlstate - CRDB #81559")
async def test_copy_in_error(aconn):
cur = aconn.cursor()
await ensure_table(cur, sample_tabledef)
with pytest.raises(e.QueryCanceled):
async with cur.copy("copy copy_in from stdin with binary") as copy:
await copy.write(sample_text.decode())
assert aconn.info.transaction_status == aconn.TransactionStatus.INERROR
@pytest.mark.parametrize("format", Format)
async def test_copy_in_empty(aconn, format):
cur = aconn.cursor()
await ensure_table(cur, sample_tabledef)
async with cur.copy(f"copy copy_in from stdin {copyopt(format)}"):
pass
assert aconn.info.transaction_status == aconn.TransactionStatus.INTRANS
assert cur.rowcount == 0
@pytest.mark.slow
async def test_copy_big_size_record(aconn):
cur = aconn.cursor()
await ensure_table(cur, "id serial primary key, data text")
data = "".join(chr(randrange(1, 256)) for i in range(10 * 1024 * 1024))
async with cur.copy("copy copy_in (data) from stdin") as copy:
await copy.write_row([data])
await cur.execute("select data from copy_in limit 1")
assert (await cur.fetchone())[0] == data
@pytest.mark.slow
async def test_copy_big_size_block(aconn):
cur = aconn.cursor()
await ensure_table(cur, "id serial primary key, data text")
data = "".join(choice(string.ascii_letters) for i in range(10 * 1024 * 1024))
copy_data = data + "\n"
async with cur.copy("copy copy_in (data) from stdin") as copy:
await copy.write(copy_data)
await cur.execute("select data from copy_in limit 1")
assert (await cur.fetchone())[0] == data
async def test_copy_in_buffers_with_pg_error(aconn):
cur = aconn.cursor()
await ensure_table(cur, sample_tabledef)
with pytest.raises(e.UniqueViolation):
async with cur.copy("copy copy_in from stdin") as copy:
await copy.write(sample_text)
await copy.write(sample_text)
assert aconn.info.transaction_status == aconn.TransactionStatus.INERROR
@pytest.mark.parametrize("format", Format)
async def test_copy_in_records(aconn, format):
cur = aconn.cursor()
await ensure_table(cur, sample_tabledef)
async with cur.copy(f"copy copy_in from stdin {copyopt(format)}") as copy:
for row in sample_records:
if format == Format.BINARY:
row = tuple(
Int4(i) if isinstance(i, int) else i for i in row
) # type: ignore[assignment]
await copy.write_row(row)
await cur.execute("select * from copy_in order by 1")
data = await cur.fetchall()
assert data == sample_records
@pytest.mark.parametrize("format", Format)
async def test_copy_in_records_set_types(aconn, format):
cur = aconn.cursor()
await ensure_table(cur, sample_tabledef)
async with cur.copy(f"copy copy_in from stdin {copyopt(format)}") as copy:
copy.set_types(["int4", "int4", "text"])
for row in sample_records:
await copy.write_row(row)
await cur.execute("select * from copy_in order by 1")
data = await cur.fetchall()
assert data == sample_records
@pytest.mark.parametrize("format", Format)
async def test_copy_in_records_binary(aconn, format):
cur = aconn.cursor()
await ensure_table(cur, "col1 serial primary key, col2 int4, data text")
async with cur.copy(
f"copy copy_in (col2, data) from stdin {copyopt(format)}"
) as copy:
for row in sample_records:
await copy.write_row((None, row[2]))
await cur.execute("select col2, data from copy_in order by 2")
data = await cur.fetchall()
assert data == [(None, "hello"), (None, "world")]
@pytest.mark.crdb_skip("copy canceled")
async def test_copy_in_buffers_with_py_error(aconn):
cur = aconn.cursor()
await ensure_table(cur, sample_tabledef)
with pytest.raises(e.QueryCanceled) as exc:
async with cur.copy("copy copy_in from stdin") as copy:
await copy.write(sample_text)
raise Exception("nuttengoggenio")
assert "nuttengoggenio" in str(exc.value)
assert aconn.info.transaction_status == aconn.TransactionStatus.INERROR
async def test_copy_in_allchars(aconn):
cur = aconn.cursor()
await ensure_table(cur, "col1 int primary key, col2 int, data text")
async with cur.copy("copy copy_in from stdin") as copy:
for i in range(1, 256):
await copy.write_row((i, None, chr(i)))
await copy.write_row((ord(eur), None, eur))
await cur.execute(
"""
select col1 = ascii(data), col2 is null, length(data), count(*)
from copy_in group by 1, 2, 3
"""
)
data = await cur.fetchall()
assert data == [(True, True, 1, 256)]
@pytest.mark.slow
@pytest.mark.parametrize(
"fmt, set_types",
[(Format.TEXT, True), (Format.TEXT, False), (Format.BINARY, True)],
)
@pytest.mark.crdb_skip("copy array")
async def test_copy_from_leaks(aconn_cls, dsn, faker, fmt, set_types):
faker.format = PyFormat.from_pq(fmt)
faker.choose_schema(ncols=20)
faker.make_records(20)
async def work():
async with await aconn_cls.connect(dsn) as conn:
async with conn.cursor(binary=fmt) as cur:
await cur.execute(faker.drop_stmt)
await cur.execute(faker.create_stmt)
stmt = sql.SQL("copy {} ({}) from stdin {}").format(
faker.table_name,
sql.SQL(", ").join(faker.fields_names),
sql.SQL("with binary" if fmt else ""),
)
async with cur.copy(stmt) as copy:
if set_types:
copy.set_types(faker.types_names)
for row in faker.records:
await copy.write_row(row)
await cur.execute(faker.select_stmt)
recs = await cur.fetchall()
for got, want in zip(recs, faker.records):
faker.assert_record(got, want)
gc_collect()
n = []
for i in range(3):
await work()
gc_collect()
n.append(gc_count())
assert n[0] == n[1] == n[2], f"objects leaked: {n[1] - n[0]}, {n[2] - n[1]}"
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