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|
from enum import Enum, auto
import pytest
from psycopg import errors as e
from psycopg import pq, sql
from psycopg.adapt import PyFormat
from psycopg.types import TypeInfo
from psycopg.types.enum import EnumInfo, register_enum
from ..fix_crdb import crdb_encoding
class PureTestEnum(Enum):
FOO = auto()
BAR = auto()
BAZ = auto()
class StrTestEnum(str, Enum):
ONE = "ONE"
TWO = "TWO"
THREE = "THREE"
NonAsciiEnum = Enum(
"NonAsciiEnum",
{"X\xe0": "x\xe0", "X\xe1": "x\xe1", "COMMA": "foo,bar"},
type=str,
)
class IntTestEnum(int, Enum):
ONE = 1
TWO = 2
THREE = 3
enum_cases = [PureTestEnum, StrTestEnum, IntTestEnum]
encodings = ["utf8", crdb_encoding("latin1")]
@pytest.fixture(scope="session", autouse=True)
def make_test_enums(request, svcconn):
for enum in enum_cases + [NonAsciiEnum]:
ensure_enum(enum, svcconn)
def ensure_enum(enum, conn):
name = enum.__name__.lower()
labels = list(enum.__members__)
conn.execute(
sql.SQL(
"""
drop type if exists {name};
create type {name} as enum ({labels});
"""
).format(name=sql.Identifier(name), labels=sql.SQL(",").join(labels))
)
return name, enum, labels
def test_fetch_info(conn):
info = EnumInfo.fetch(conn, "StrTestEnum")
assert info.name == "strtestenum"
assert info.oid > 0
assert info.oid != info.array_oid > 0
assert len(info.labels) == len(StrTestEnum)
assert info.labels == list(StrTestEnum.__members__)
async def test_fetch_info_async(aconn):
info = await EnumInfo.fetch(aconn, "PureTestEnum")
assert info.name == "puretestenum"
assert info.oid > 0
assert info.oid != info.array_oid > 0
assert len(info.labels) == len(PureTestEnum)
assert info.labels == list(PureTestEnum.__members__)
def test_register_makes_a_type(conn):
info = EnumInfo.fetch(conn, "IntTestEnum")
assert info
assert info.enum is None
register_enum(info, context=conn)
assert info.enum is not None
assert [e.name for e in info.enum] == list(IntTestEnum.__members__)
@pytest.mark.parametrize("enum", enum_cases)
@pytest.mark.parametrize("fmt_in", PyFormat)
@pytest.mark.parametrize("fmt_out", pq.Format)
def test_enum_loader(conn, enum, fmt_in, fmt_out):
info = EnumInfo.fetch(conn, enum.__name__)
register_enum(info, conn, enum=enum)
for label in info.labels:
cur = conn.execute(
f"select %{fmt_in.value}::{enum.__name__}", [label], binary=fmt_out
)
assert cur.fetchone()[0] == enum[label]
@pytest.mark.parametrize("encoding", encodings)
@pytest.mark.parametrize("fmt_in", PyFormat)
@pytest.mark.parametrize("fmt_out", pq.Format)
def test_enum_loader_nonascii(conn, encoding, fmt_in, fmt_out):
enum = NonAsciiEnum
conn.execute(f"set client_encoding to {encoding}")
info = EnumInfo.fetch(conn, enum.__name__)
register_enum(info, conn, enum=enum)
for label in info.labels:
cur = conn.execute(
f"select %{fmt_in.value}::{info.name}", [label], binary=fmt_out
)
assert cur.fetchone()[0] == enum[label]
@pytest.mark.crdb_skip("encoding")
@pytest.mark.parametrize("enum", enum_cases)
@pytest.mark.parametrize("fmt_in", PyFormat)
@pytest.mark.parametrize("fmt_out", pq.Format)
def test_enum_loader_sqlascii(conn, enum, fmt_in, fmt_out):
info = EnumInfo.fetch(conn, enum.__name__)
register_enum(info, conn, enum)
conn.execute("set client_encoding to sql_ascii")
for label in info.labels:
cur = conn.execute(
f"select %{fmt_in.value}::{info.name}", [label], binary=fmt_out
)
assert cur.fetchone()[0] == enum[label]
@pytest.mark.parametrize("enum", enum_cases)
@pytest.mark.parametrize("fmt_in", PyFormat)
@pytest.mark.parametrize("fmt_out", pq.Format)
def test_enum_dumper(conn, enum, fmt_in, fmt_out):
info = EnumInfo.fetch(conn, enum.__name__)
register_enum(info, conn, enum)
for item in enum:
cur = conn.execute(f"select %{fmt_in.value}", [item], binary=fmt_out)
assert cur.fetchone()[0] == item
@pytest.mark.parametrize("encoding", encodings)
@pytest.mark.parametrize("fmt_in", PyFormat)
@pytest.mark.parametrize("fmt_out", pq.Format)
def test_enum_dumper_nonascii(conn, encoding, fmt_in, fmt_out):
enum = NonAsciiEnum
conn.execute(f"set client_encoding to {encoding}")
info = EnumInfo.fetch(conn, enum.__name__)
register_enum(info, conn, enum)
for item in enum:
cur = conn.execute(f"select %{fmt_in.value}", [item], binary=fmt_out)
assert cur.fetchone()[0] == item
@pytest.mark.crdb_skip("encoding")
@pytest.mark.parametrize("enum", enum_cases)
@pytest.mark.parametrize("fmt_in", PyFormat)
@pytest.mark.parametrize("fmt_out", pq.Format)
def test_enum_dumper_sqlascii(conn, enum, fmt_in, fmt_out):
info = EnumInfo.fetch(conn, enum.__name__)
register_enum(info, conn, enum)
conn.execute("set client_encoding to sql_ascii")
for item in enum:
cur = conn.execute(f"select %{fmt_in.value}", [item], binary=fmt_out)
assert cur.fetchone()[0] == item
@pytest.mark.parametrize("enum", enum_cases)
@pytest.mark.parametrize("fmt_in", PyFormat)
@pytest.mark.parametrize("fmt_out", pq.Format)
def test_generic_enum_dumper(conn, enum, fmt_in, fmt_out):
for item in enum:
if enum is PureTestEnum:
want = item.name
else:
want = item.value
cur = conn.execute(f"select %{fmt_in.value}", [item], binary=fmt_out)
assert cur.fetchone()[0] == want
@pytest.mark.parametrize("encoding", encodings)
@pytest.mark.parametrize("fmt_in", PyFormat)
@pytest.mark.parametrize("fmt_out", pq.Format)
def test_generic_enum_dumper_nonascii(conn, encoding, fmt_in, fmt_out):
conn.execute(f"set client_encoding to {encoding}")
for item in NonAsciiEnum:
cur = conn.execute(f"select %{fmt_in.value}", [item.value], binary=fmt_out)
assert cur.fetchone()[0] == item.value
@pytest.mark.parametrize("enum", enum_cases)
@pytest.mark.parametrize("fmt_in", PyFormat)
@pytest.mark.parametrize("fmt_out", pq.Format)
def test_generic_enum_loader(conn, enum, fmt_in, fmt_out):
for label in enum.__members__:
cur = conn.execute(
f"select %{fmt_in.value}::{enum.__name__}", [label], binary=fmt_out
)
want = enum[label].name
if fmt_out == pq.Format.BINARY:
want = want.encode()
assert cur.fetchone()[0] == want
@pytest.mark.parametrize("encoding", encodings)
@pytest.mark.parametrize("fmt_in", PyFormat)
@pytest.mark.parametrize("fmt_out", pq.Format)
def test_generic_enum_loader_nonascii(conn, encoding, fmt_in, fmt_out):
conn.execute(f"set client_encoding to {encoding}")
for label in NonAsciiEnum.__members__:
cur = conn.execute(
f"select %{fmt_in.value}::nonasciienum", [label], binary=fmt_out
)
if fmt_out == pq.Format.TEXT:
assert cur.fetchone()[0] == label
else:
assert cur.fetchone()[0] == label.encode(encoding)
@pytest.mark.parametrize("fmt_in", PyFormat)
@pytest.mark.parametrize("fmt_out", pq.Format)
def test_enum_array_loader(conn, fmt_in, fmt_out):
enum = PureTestEnum
info = EnumInfo.fetch(conn, enum.__name__)
register_enum(info, conn, enum)
labels = list(enum.__members__)
cur = conn.execute(
f"select %{fmt_in.value}::{info.name}[]", [labels], binary=fmt_out
)
assert cur.fetchone()[0] == list(enum)
@pytest.mark.parametrize("fmt_in", PyFormat)
@pytest.mark.parametrize("fmt_out", pq.Format)
def test_enum_array_dumper(conn, fmt_in, fmt_out):
enum = StrTestEnum
info = EnumInfo.fetch(conn, enum.__name__)
register_enum(info, conn, enum)
cur = conn.execute(f"select %{fmt_in.value}::text[]", [list(enum)], binary=fmt_out)
assert cur.fetchone()[0] == list(enum.__members__)
@pytest.mark.parametrize("fmt_in", PyFormat)
@pytest.mark.parametrize("fmt_out", pq.Format)
def test_generic_enum_array_loader(conn, fmt_in, fmt_out):
enum = IntTestEnum
info = TypeInfo.fetch(conn, enum.__name__)
info.register(conn)
labels = list(enum.__members__)
cur = conn.execute(
f"select %{fmt_in.value}::{info.name}[]", [labels], binary=fmt_out
)
if fmt_out == pq.Format.TEXT:
assert cur.fetchone()[0] == labels
else:
assert cur.fetchone()[0] == [item.encode() for item in labels]
def test_enum_error(conn):
conn.autocommit = True
info = EnumInfo.fetch(conn, "puretestenum")
register_enum(info, conn, StrTestEnum)
with pytest.raises(e.DataError):
conn.execute("select %s::text", [StrTestEnum.ONE]).fetchone()
with pytest.raises(e.DataError):
conn.execute("select 'BAR'::puretestenum").fetchone()
@pytest.mark.parametrize("fmt_in", PyFormat)
@pytest.mark.parametrize("fmt_out", pq.Format)
@pytest.mark.parametrize(
"mapping",
[
{StrTestEnum.ONE: "FOO", StrTestEnum.TWO: "BAR", StrTestEnum.THREE: "BAZ"},
[
(StrTestEnum.ONE, "FOO"),
(StrTestEnum.TWO, "BAR"),
(StrTestEnum.THREE, "BAZ"),
],
],
)
def test_remap(conn, fmt_in, fmt_out, mapping):
info = EnumInfo.fetch(conn, "puretestenum")
register_enum(info, conn, StrTestEnum, mapping=mapping)
for member, label in [("ONE", "FOO"), ("TWO", "BAR"), ("THREE", "BAZ")]:
cur = conn.execute(f"select %{fmt_in.value}::text", [StrTestEnum[member]])
assert cur.fetchone()[0] == label
cur = conn.execute(f"select '{label}'::puretestenum", binary=fmt_out)
assert cur.fetchone()[0] is StrTestEnum[member]
def test_remap_rename(conn):
RenamedEnum = Enum("RenamedEnum", "FOO BAR QUX")
enum = RenamedEnum
info = EnumInfo.fetch(conn, "puretestenum")
register_enum(info, conn, enum, mapping={enum.QUX: "BAZ"})
for member, label in [("FOO", "FOO"), ("BAR", "BAR"), ("QUX", "BAZ")]:
cur = conn.execute("select %s::text", [enum[member]])
assert cur.fetchone()[0] == label
cur = conn.execute(f"select '{label}'::puretestenum")
assert cur.fetchone()[0] is enum[member]
def test_remap_more_python(conn):
LargerEnum = Enum("LargerEnum", "FOO BAR BAZ QUX QUUX QUUUX")
enum = LargerEnum
info = EnumInfo.fetch(conn, "puretestenum")
mapping = {enum[m]: "BAZ" for m in ["QUX", "QUUX", "QUUUX"]}
register_enum(info, conn, enum, mapping=mapping)
for member, label in [("FOO", "FOO"), ("BAZ", "BAZ"), ("QUUUX", "BAZ")]:
cur = conn.execute("select %s::text", [enum[member]])
assert cur.fetchone()[0] == label
for member, label in [("FOO", "FOO"), ("QUUUX", "BAZ")]:
cur = conn.execute(f"select '{label}'::puretestenum")
assert cur.fetchone()[0] is enum[member]
def test_remap_more_postgres(conn):
SmallerEnum = Enum("SmallerEnum", "FOO")
enum = SmallerEnum
info = EnumInfo.fetch(conn, "puretestenum")
mapping = [(enum.FOO, "BAR"), (enum.FOO, "BAZ")]
register_enum(info, conn, enum, mapping=mapping)
cur = conn.execute("select %s::text", [enum.FOO])
assert cur.fetchone()[0] == "BAZ"
for label in PureTestEnum.__members__:
cur = conn.execute(f"select '{label}'::puretestenum")
assert cur.fetchone()[0] is enum.FOO
def test_remap_by_value(conn):
enum = Enum( # type: ignore
"ByValue",
{m.lower(): m for m in PureTestEnum.__members__},
)
info = EnumInfo.fetch(conn, "puretestenum")
register_enum(info, conn, enum, mapping={m: m.value for m in enum})
for label in PureTestEnum.__members__:
cur = conn.execute("select %s::text", [enum[label.lower()]])
assert cur.fetchone()[0] == label
cur = conn.execute(f"select '{label}'::puretestenum")
assert cur.fetchone()[0] is enum[label.lower()]
|
