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chore: Add dummy_kernels table for testing sql_json_merge #2115

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chore: Add dummy_kernels table for testing sql_json_merge #2115

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250 changes: 240 additions & 10 deletions tests/manager/models/test_utils.py
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Original file line number Diff line number Diff line change
@@ -1,24 +1,254 @@
import uuid
from typing import Union
from datetime import datetime

import pytest
import sqlalchemy
import sqlalchemy as sa
from dateutil.tz import tzutc
from sqlalchemy.dialects import postgresql as pgsql

from ai.backend.manager.models import KernelRow, SessionRow, kernels
from ai.backend.manager.models import KernelRow, SessionRow, kernels, metadata
from ai.backend.manager.models.utils import (
ExtendedAsyncSAEngine,
agg_to_array,
agg_to_str,
sql_json_merge,
)


async def _select_kernel_row(
conn: sqlalchemy.ext.asyncio.engine.AsyncConnection,
session_id: Union[str, uuid.UUID],
@pytest.fixture
async def dummy_kernels(database_engine: ExtendedAsyncSAEngine):
# dummy_kernels, designed solely for testing sql_json_merge, only includes the status_history column, unlike legacy kernels table.
dummy_kernels = sa.Table(
"dummy_kernels",
metadata,
sa.Column("id", sa.Integer(), primary_key=True, default=1),
sa.Column(
"status_history", pgsql.JSONB(), nullable=True, default=sa.null()
), # JSONB column for testing
extend_existing=True,
)

async with database_engine.begin() as db_sess:
await db_sess.run_sync(metadata.create_all)
await db_sess.execute(dummy_kernels.insert()) # insert fixture data for testing
await db_sess.commit()

yield dummy_kernels

async with database_engine.begin() as db_sess:
await db_sess.run_sync(dummy_kernels.drop)
await db_sess.commit()


@pytest.mark.asyncio
async def test_sql_json_merge__deeper_object(
dummy_kernels: sa.Table, database_engine: ExtendedAsyncSAEngine
):
async with database_engine.begin() as db_sess:
timestamp = datetime.now(tzutc()).isoformat()
expected = {
"kernel": {
"session": {
"PENDING": timestamp,
"PREPARING": timestamp,
},
},
}
query = (
dummy_kernels.update()
.values({
"status_history": sql_json_merge(
dummy_kernels.c.status_history,
("kernel", "session"),
{
"PENDING": timestamp,
"PREPARING": timestamp,
},
),
})
.where(dummy_kernels.c.id == 1)
)
await db_sess.execute(query)
result = (await db_sess.execute(sa.select(dummy_kernels.c.status_history))).scalar()
assert result == expected


@pytest.mark.asyncio
async def test_sql_json_merge__append_values(
dummy_kernels: sa.Table, database_engine: ExtendedAsyncSAEngine
):
query = kernels.select().select_from(kernels).where(kernels.c.session_id == session_id)
kernel, *_ = await conn.execute(query)
return kernel
async with database_engine.begin() as db_sess:
timestamp = datetime.now(tzutc()).isoformat()
expected = {
"kernel": {
"session": {
"PENDING": timestamp,
"PREPARING": timestamp,
"TERMINATED": timestamp,
"TERMINATING": timestamp,
},
},
}
query = (
dummy_kernels.update()
.values({
"status_history": sql_json_merge(
dummy_kernels.c.status_history,
("kernel", "session"),
{
"PENDING": timestamp,
"PREPARING": timestamp,
},
),
})
.where(dummy_kernels.c.id == 1)
)
await db_sess.execute(query)
query = (
dummy_kernels.update()
.values({
"status_history": sql_json_merge(
dummy_kernels.c.status_history,
("kernel", "session"),
{
"TERMINATING": timestamp,
"TERMINATED": timestamp,
},
),
})
.where(dummy_kernels.c.id == 1)
)
await db_sess.execute(query)

result = (await db_sess.execute(sa.select(dummy_kernels.c.status_history))).scalar()
assert result == expected


@pytest.mark.asyncio
async def test_sql_json_merge__kernel_status_history(
dummy_kernels: sa.Table, database_engine: ExtendedAsyncSAEngine
):
async with database_engine.begin() as db_sess:
timestamp = datetime.now(tzutc()).isoformat()
expected = {
"PENDING": timestamp,
"PREPARING": timestamp,
"TERMINATING": timestamp,
"TERMINATED": timestamp,
}
query = (
dummy_kernels.update()
.values({
"status_history": sql_json_merge(
dummy_kernels.c.status_history,
(),
{
"PENDING": timestamp,
"PREPARING": timestamp,
},
),
})
.where(dummy_kernels.c.id == 1)
)
await db_sess.execute(query)
query = (
dummy_kernels.update()
.values({
"status_history": sql_json_merge(
dummy_kernels.c.status_history,
(),
{
"TERMINATING": timestamp,
"TERMINATED": timestamp,
},
),
})
.where(dummy_kernels.c.id == 1)
)
await db_sess.execute(query)

result = (await db_sess.execute(sa.select(dummy_kernels.c.status_history))).scalar()
assert result == expected


@pytest.mark.asyncio
async def test_sql_json_merge__mixed_formats(
dummy_kernels: sa.Table, database_engine: ExtendedAsyncSAEngine
):
async with database_engine.begin() as db_sess:
timestamp = datetime.now(tzutc()).isoformat()
expected = {
"PENDING": timestamp,
"kernel": {
"PREPARING": timestamp,
},
}
query = (
dummy_kernels.update()
.values({
"status_history": sql_json_merge(
dummy_kernels.c.status_history,
(),
{
"PENDING": timestamp,
},
),
})
.where(dummy_kernels.c.id == 1)
)
await db_sess.execute(query)

query = (
dummy_kernels.update()
.values({
"status_history": sql_json_merge(
dummy_kernels.c.status_history,
("kernel",),
{
"PREPARING": timestamp,
},
),
})
.where(dummy_kernels.c.id == 1)
)
await db_sess.execute(query)

result = (await db_sess.execute(sa.select(dummy_kernels.c.status_history))).scalar()
assert result == expected


@pytest.mark.asyncio
async def test_sql_json_merge__json_serializable_types(
dummy_kernels: sa.Table, database_engine: ExtendedAsyncSAEngine
):
async with database_engine.begin() as db_sess:
expected = {
"boolean": True,
"integer": 10101010,
"float": 1010.1010,
"string": "10101010",
# "bytes": b"10101010",
"list": [
10101010,
"10101010",
],
"dict": {
"10101010": 10101010,
},
}
query = (
dummy_kernels.update()
.values({
"status_history": sql_json_merge(
dummy_kernels.c.status_history,
(),
expected,
),
})
.where(dummy_kernels.c.id == 1)
)
await db_sess.execute(query)
result = (await db_sess.execute(sa.select(dummy_kernels.c.status_history))).scalar()
assert result == expected


@pytest.mark.asyncio
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