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import pytest
import psycopg
from psycopg import Binary
from psycopg import errors as e
from psycopg import pq, sql
from psycopg.adapt import PyFormat
from ..utils import eur
from ..fix_crdb import crdb_encoding, crdb_scs_off
#
# tests with text
#
def crdb_bpchar(*args):
return pytest.param(*args, marks=pytest.mark.crdb("skip", reason="bpchar"))
@pytest.mark.parametrize("fmt_in", PyFormat)
def test_dump_1char(conn, fmt_in):
cur = conn.cursor()
for i in range(1, 256):
cur.execute(f"select %{fmt_in.value} = chr(%s)", (chr(i), i))
assert cur.fetchone()[0] is True, chr(i)
@pytest.mark.parametrize("scs", ["on", crdb_scs_off("off")])
def test_quote_1char(conn, scs):
messages = []
conn.add_notice_handler(lambda msg: messages.append(msg.message_primary))
conn.execute(f"set standard_conforming_strings to {scs}")
conn.execute("set escape_string_warning to on")
cur = conn.cursor()
query = sql.SQL("select {ch} = chr(%s)")
for i in range(1, 256):
if chr(i) == "%":
continue
cur.execute(query.format(ch=sql.Literal(chr(i))), (i,))
assert cur.fetchone()[0] is True, chr(i)
# No "nonstandard use of \\ in a string literal" warning
assert not messages
@pytest.mark.crdb("skip", reason="can deal with 0 strings")
@pytest.mark.parametrize("fmt_in", PyFormat)
def test_dump_zero(conn, fmt_in):
cur = conn.cursor()
s = "foo\x00bar"
with pytest.raises(psycopg.DataError):
cur.execute(f"select %{fmt_in.value}::text", (s,))
def test_quote_zero(conn):
cur = conn.cursor()
s = "foo\x00bar"
with pytest.raises(psycopg.DataError):
cur.execute(sql.SQL("select {}").format(sql.Literal(s)))
# the only way to make this pass is to reduce %% -> % every time
# not only when there are query arguments
# see https://github.com/psycopg/psycopg2/issues/825
@pytest.mark.xfail
def test_quote_percent(conn):
cur = conn.cursor()
cur.execute(sql.SQL("select {ch}").format(ch=sql.Literal("%")))
assert cur.fetchone()[0] == "%"
cur.execute(
sql.SQL("select {ch} = chr(%s)").format(ch=sql.Literal("%")),
(ord("%"),),
)
assert cur.fetchone()[0] is True
@pytest.mark.parametrize(
"typename", ["text", "varchar", "name", crdb_bpchar("bpchar"), '"char"']
)
@pytest.mark.parametrize("fmt_out", pq.Format)
def test_load_1char(conn, typename, fmt_out):
cur = conn.cursor(binary=fmt_out)
for i in range(1, 256):
if typename == '"char"' and i > 127:
# for char > 128 the client receives only 194 or 195.
continue
cur.execute(f"select chr(%s)::{typename}", (i,))
res = cur.fetchone()[0]
assert res == chr(i)
assert cur.pgresult.fformat(0) == fmt_out
@pytest.mark.parametrize("fmt_in", PyFormat)
@pytest.mark.parametrize(
"encoding", ["utf8", crdb_encoding("latin9"), crdb_encoding("sql_ascii")]
)
def test_dump_enc(conn, fmt_in, encoding):
cur = conn.cursor()
conn.execute(f"set client_encoding to {encoding}")
(res,) = cur.execute(f"select ascii(%{fmt_in.value})", (eur,)).fetchone()
assert res == ord(eur)
@pytest.mark.crdb_skip("encoding")
@pytest.mark.parametrize("fmt_in", PyFormat)
def test_dump_badenc(conn, fmt_in):
cur = conn.cursor()
conn.execute("set client_encoding to latin1")
with pytest.raises(UnicodeEncodeError):
cur.execute(f"select %{fmt_in.value}::bytea", (eur,))
@pytest.mark.parametrize("fmt_in", PyFormat)
def test_dump_utf8_badenc(conn, fmt_in):
cur = conn.cursor()
conn.execute("set client_encoding to utf8")
with pytest.raises(UnicodeEncodeError):
cur.execute(f"select %{fmt_in.value}", ("\uddf8",))
@pytest.mark.parametrize("fmt_in", [PyFormat.AUTO, PyFormat.TEXT])
def test_dump_enum(conn, fmt_in):
from enum import Enum
class MyEnum(str, Enum):
foo = "foo"
bar = "bar"
cur = conn.cursor()
cur.execute("create type myenum as enum ('foo', 'bar')")
cur.execute("create table with_enum (e myenum)")
cur.execute(f"insert into with_enum (e) values (%{fmt_in.value})", (MyEnum.foo,))
(res,) = cur.execute("select e from with_enum").fetchone()
assert res == "foo"
@pytest.mark.crdb("skip")
@pytest.mark.parametrize("fmt_in", [PyFormat.AUTO, PyFormat.TEXT])
def test_dump_text_oid(conn, fmt_in):
conn.autocommit = True
with pytest.raises(e.IndeterminateDatatype):
conn.execute(f"select concat(%{fmt_in.value}, %{fmt_in.value})", ["foo", "bar"])
conn.adapters.register_dumper(str, psycopg.types.string.StrDumper)
cur = conn.execute(
f"select concat(%{fmt_in.value}, %{fmt_in.value})", ["foo", "bar"]
)
assert cur.fetchone()[0] == "foobar"
@pytest.mark.crdb_skip("copy")
@pytest.mark.parametrize("fmt_out", pq.Format)
@pytest.mark.parametrize("encoding", ["utf8", crdb_encoding("latin9")])
@pytest.mark.parametrize("typename", ["text", "varchar", "name", "bpchar"])
def test_load_enc(conn, typename, encoding, fmt_out):
cur = conn.cursor(binary=fmt_out)
conn.execute(f"set client_encoding to {encoding}")
(res,) = cur.execute(f"select chr(%s)::{typename}", [ord(eur)]).fetchone()
assert res == eur
stmt = sql.SQL("copy (select chr({})) to stdout (format {})").format(
ord(eur), sql.SQL(fmt_out.name)
)
with cur.copy(stmt) as copy:
copy.set_types([typename])
(res,) = copy.read_row()
assert res == eur
@pytest.mark.crdb_skip("encoding")
@pytest.mark.parametrize("fmt_out", pq.Format)
@pytest.mark.parametrize("typename", ["text", "varchar", "name", "bpchar"])
def test_load_badenc(conn, typename, fmt_out):
conn.autocommit = True
cur = conn.cursor(binary=fmt_out)
conn.execute("set client_encoding to latin1")
with pytest.raises(psycopg.DataError):
cur.execute(f"select chr(%s)::{typename}", [ord(eur)])
stmt = sql.SQL("copy (select chr({})) to stdout (format {})").format(
ord(eur), sql.SQL(fmt_out.name)
)
with cur.copy(stmt) as copy:
copy.set_types([typename])
with pytest.raises(psycopg.DataError):
copy.read_row()
@pytest.mark.crdb_skip("encoding")
@pytest.mark.parametrize("fmt_out", pq.Format)
@pytest.mark.parametrize("typename", ["text", "varchar", "name", "bpchar"])
def test_load_ascii(conn, typename, fmt_out):
cur = conn.cursor(binary=fmt_out)
conn.execute("set client_encoding to sql_ascii")
cur.execute(f"select chr(%s)::{typename}", [ord(eur)])
assert cur.fetchone()[0] == eur.encode()
stmt = sql.SQL("copy (select chr({})) to stdout (format {})").format(
ord(eur), sql.SQL(fmt_out.name)
)
with cur.copy(stmt) as copy:
copy.set_types([typename])
(res,) = copy.read_row()
assert res == eur.encode()
@pytest.mark.parametrize("fmt_in", PyFormat)
@pytest.mark.parametrize("fmt_out", pq.Format)
@pytest.mark.parametrize("typename", ["text", "varchar", "name", crdb_bpchar("bpchar")])
def test_text_array(conn, typename, fmt_in, fmt_out):
cur = conn.cursor(binary=fmt_out)
a = list(map(chr, range(1, 256))) + [eur]
(res,) = cur.execute(f"select %{fmt_in.value}::{typename}[]", (a,)).fetchone()
assert res == a
@pytest.mark.crdb_skip("encoding")
@pytest.mark.parametrize("fmt_in", PyFormat)
@pytest.mark.parametrize("fmt_out", pq.Format)
def test_text_array_ascii(conn, fmt_in, fmt_out):
conn.execute("set client_encoding to sql_ascii")
cur = conn.cursor(binary=fmt_out)
a = list(map(chr, range(1, 256))) + [eur]
exp = [s.encode() for s in a]
(res,) = cur.execute(f"select %{fmt_in.value}::text[]", (a,)).fetchone()
assert res == exp
@pytest.mark.parametrize("fmt_out", pq.Format)
@pytest.mark.parametrize("typename", ["text", "varchar", "name"])
def test_oid_lookup(conn, typename, fmt_out):
dumper = conn.adapters.get_dumper_by_oid(conn.adapters.types[typename].oid, fmt_out)
assert dumper.oid == conn.adapters.types[typename].oid
assert dumper.format == fmt_out
#
# tests with bytea
#
@pytest.mark.parametrize("fmt_in", PyFormat)
@pytest.mark.parametrize("pytype", [bytes, bytearray, memoryview, Binary])
def test_dump_1byte(conn, fmt_in, pytype):
cur = conn.cursor()
for i in range(0, 256):
obj = pytype(bytes([i]))
cur.execute(f"select %{fmt_in.value} = set_byte('x', 0, %s)", (obj, i))
assert cur.fetchone()[0] is True, i
cur.execute(f"select %{fmt_in.value} = array[set_byte('x', 0, %s)]", ([obj], i))
assert cur.fetchone()[0] is True
@pytest.mark.parametrize("scs", ["on", crdb_scs_off("off")])
@pytest.mark.parametrize("pytype", [bytes, bytearray, memoryview, Binary])
def test_quote_1byte(conn, scs, pytype):
messages = []
conn.add_notice_handler(lambda msg: messages.append(msg.message_primary))
conn.execute(f"set standard_conforming_strings to {scs}")
conn.execute("set escape_string_warning to on")
cur = conn.cursor()
query = sql.SQL("select {ch} = set_byte('x', 0, %s)")
for i in range(0, 256):
obj = pytype(bytes([i]))
cur.execute(query.format(ch=sql.Literal(obj)), (i,))
assert cur.fetchone()[0] is True, i
# No "nonstandard use of \\ in a string literal" warning
assert not messages
@pytest.mark.parametrize("fmt_out", pq.Format)
def test_load_1byte(conn, fmt_out):
cur = conn.cursor(binary=fmt_out)
for i in range(0, 256):
cur.execute("select set_byte('x', 0, %s)", (i,))
val = cur.fetchone()[0]
assert val == bytes([i])
assert isinstance(val, bytes)
assert cur.pgresult.fformat(0) == fmt_out
@pytest.mark.parametrize("fmt_in", PyFormat)
@pytest.mark.parametrize("fmt_out", pq.Format)
def test_bytea_array(conn, fmt_in, fmt_out):
cur = conn.cursor(binary=fmt_out)
a = [bytes(range(0, 256))]
(res,) = cur.execute(f"select %{fmt_in.value}::bytea[]", (a,)).fetchone()
assert res == a
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