litellm/tests/litellm-proxy-extras/test_litellm_proxy_extras_utils.py
mateo-berri 7b8cc0319e fix(proxy-extras): only spend a migrate-deploy attempt when a pass made no progress
The v2 migration resolver gave `prisma migrate deploy` four attempts, and
every recovery path ended in a bare `continue`, so each one burned an attempt.
A database first brought up with `--use_prisma_db_push` has a full schema and
no migrations ledger, so the baseline spent attempt one and the first three
migrations whose objects already existed spent the rest. The proxy then exited
before binding its port, and that database could never be moved onto the
resolver.

The retry budget now counts only attempts that got nowhere. Creating the
baseline, and each migration newly marked applied, leaves the budget alone, so
a push-created database works through its pre-existing objects one pass at a
time. Timeouts, deadlock rollbacks, advisory-lock waits, and a repeat of a
recovery that already ran still spend an attempt, so a run that stops making
progress gives up exactly as before.
2026-09-02 23:56:09 -07:00

872 lines
36 KiB
Python

import glob
import os
import re
import sys
import pytest
sys.path.insert(
0,
os.path.abspath(
os.path.join(os.path.dirname(__file__), "../../litellm-proxy-extras")
),
)
from litellm_proxy_extras.utils import (
PARTITIONED_SPEND_LOGS_PUSH_ERROR,
ProxyExtrasDBManager,
filter_partitioned_spend_logs_diff,
)
# Path to the migrations directory
_MIGRATIONS_DIR = os.path.abspath(
os.path.join(
os.path.dirname(__file__),
"../../litellm-proxy-extras/litellm_proxy_extras/migrations",
)
)
def test_custom_prisma_dir(monkeypatch):
import tempfile
# create a temp directory
temp_dir = tempfile.mkdtemp()
monkeypatch.setenv("LITELLM_MIGRATION_DIR", temp_dir)
## Check if the prisma dir is the temp directory
assert ProxyExtrasDBManager._get_prisma_dir() == temp_dir
## Check if the schema.prisma file is in the temp directory
schema_path = os.path.join(temp_dir, "schema.prisma")
assert os.path.exists(schema_path)
## Check if the migrations dir is in the temp directory
migrations_dir = os.path.join(temp_dir, "migrations")
assert os.path.exists(migrations_dir)
class TestPermissionErrorDetection:
"""Test cases for permission error detection in Prisma migrations"""
def test_is_permission_error_postgres_42501(self):
"""Test detection of PostgreSQL 42501 error code (insufficient privilege)"""
error_message = "Database error code: 42501 - permission denied for table users"
assert ProxyExtrasDBManager._is_permission_error(error_message) is True
def test_is_permission_error_must_be_owner(self):
"""Test detection of 'must be owner of table' error"""
error_message = "ERROR: must be owner of table my_table"
assert ProxyExtrasDBManager._is_permission_error(error_message) is True
def test_is_permission_error_permission_denied_schema(self):
"""Test detection of 'permission denied for schema' error"""
error_message = "permission denied for schema public"
assert ProxyExtrasDBManager._is_permission_error(error_message) is True
def test_is_permission_error_permission_denied_table(self):
"""Test detection of 'permission denied for table' error"""
error_message = "permission denied for table my_table"
assert ProxyExtrasDBManager._is_permission_error(error_message) is True
def test_is_permission_error_must_be_owner_schema(self):
"""Test detection of 'must be owner of schema' error"""
error_message = "must be owner of schema public"
assert ProxyExtrasDBManager._is_permission_error(error_message) is True
def test_is_permission_error_case_insensitive(self):
"""Test that permission error detection is case insensitive"""
error_message = "PERMISSION DENIED FOR TABLE my_table"
assert ProxyExtrasDBManager._is_permission_error(error_message) is True
def test_is_permission_error_negative(self):
"""Test that non-permission errors are not detected as permission errors"""
error_message = "column 'id' already exists"
assert ProxyExtrasDBManager._is_permission_error(error_message) is False
class TestIdempotentErrorDetection:
"""Test cases for idempotent error detection in Prisma migrations"""
def test_is_idempotent_error_already_exists(self):
"""Test detection of generic 'already exists' error"""
error_message = "object already exists"
assert ProxyExtrasDBManager._is_idempotent_error(error_message) is True
def test_is_idempotent_error_column_already_exists(self):
"""Test detection of 'column already exists' error"""
error_message = "column 'email' already exists"
assert ProxyExtrasDBManager._is_idempotent_error(error_message) is True
def test_is_idempotent_error_duplicate_key(self):
"""Test detection of duplicate key violation error"""
error_message = "duplicate key value violates unique constraint"
assert ProxyExtrasDBManager._is_idempotent_error(error_message) is True
def test_is_idempotent_error_relation_already_exists(self):
"""Test detection of 'relation already exists' error"""
error_message = "relation 'users_pkey' already exists"
assert ProxyExtrasDBManager._is_idempotent_error(error_message) is True
def test_is_idempotent_error_constraint_already_exists(self):
"""Test detection of 'constraint already exists' error"""
error_message = "constraint 'fk_user_id' already exists"
assert ProxyExtrasDBManager._is_idempotent_error(error_message) is True
def test_is_idempotent_error_case_insensitive(self):
"""Test that idempotent error detection is case insensitive"""
error_message = "COLUMN 'ID' ALREADY EXISTS"
assert ProxyExtrasDBManager._is_idempotent_error(error_message) is True
def test_is_idempotent_error_does_not_exist(self):
"""Test detection of 'does not exist' error"""
error_message = "ERROR: index 'idx' does not exist"
assert ProxyExtrasDBManager._is_idempotent_error(error_message) is True
def test_is_idempotent_error_negative(self):
"""Test that non-idempotent errors are not detected as idempotent errors"""
error_message = "Database error code: 42501 - permission denied"
assert ProxyExtrasDBManager._is_idempotent_error(error_message) is False
class TestErrorClassificationPriority:
"""Test cases to ensure errors are correctly classified"""
def test_permission_error_not_classified_as_idempotent(self):
"""Ensure permission errors are not mistakenly classified as idempotent"""
error_message = "Database error code: 42501 - must be owner of table users"
assert ProxyExtrasDBManager._is_permission_error(error_message) is True
assert ProxyExtrasDBManager._is_idempotent_error(error_message) is False
def test_idempotent_error_not_classified_as_permission(self):
"""Ensure idempotent errors are not mistakenly classified as permission errors"""
error_message = "column 'created_at' already exists"
assert ProxyExtrasDBManager._is_idempotent_error(error_message) is True
assert ProxyExtrasDBManager._is_permission_error(error_message) is False
def test_unknown_error_classified_as_neither(self):
"""Ensure unknown errors are classified as neither permission nor idempotent"""
error_message = "connection timeout"
assert ProxyExtrasDBManager._is_permission_error(error_message) is False
assert ProxyExtrasDBManager._is_idempotent_error(error_message) is False
def _get_all_migrations():
"""Return (migration_name, sql_content) pairs for all migrations."""
migration_files = sorted(
glob.glob(os.path.join(_MIGRATIONS_DIR, "*/migration.sql"))
)
results = []
for path in migration_files:
migration_name = os.path.basename(os.path.dirname(path))
with open(path) as f:
results.append((migration_name, f.read()))
return results
_LINE_COMMENT = re.compile(r"--.*$")
_BLOCK_COMMENT = re.compile(r"/\*.*?\*/", re.DOTALL)
_PRE_GUARD_MIGRATIONS = frozenset({
"20260331000000_add_prompt_environment_and_created_by",
"20260418000000_add_adaptive_router_tables",
"20260429161855_workflow_runs_tables",
"20260605182307_add_timeout_to_mcp_server_table",
"20260626120000_add_mcp_tool_search_enabled",
"20260629000000_add_max_concurrent_requests_to_mcp_server_table",
"20260710000000_add_dcr_bridge_to_mcp_server_table",
"20260713230852_add_key_type_to_litellm_verification_token",
"20260811172448_add_shadow_eval",
"20260813180408_add_shadow_eval_direction",
"20260814000000_add_proxy_worker_heartbeat",
"20260817143646_add_daily_guardrail_usage_units",
"20260818224500_add_shadow_eval_stopped_by",
"20260819000000_shadow_eval_max_budget",
})
def _blanked_block_comments(sql):
"""`sql` with every `/* ... */` body blanked out, newlines kept so lines still count.
Prisma opens a destructive migration with a `/* Warnings: You are about to drop the
column ... */` header, which is prose about the statement rather than the statement.
"""
return _BLOCK_COMMENT.sub(lambda m: re.sub(r"[^\n]", " ", m.group(0)), sql)
def _statements(sql):
"""(line_number, sql) for each line, with comments removed.
Prisma writes its own explanations as `-- CREATE INDEX CONCURRENTLY ...`, which a
raw-line scan reads as the statement it is describing.
"""
return [
(number, _LINE_COMMENT.sub("", line))
for number, line in enumerate(_blanked_block_comments(sql).splitlines(), 1)
]
def _guarded_migrations(all_migrations):
"""Migrations the DDL rules apply to. Prisma checksums an applied migration, so the
ones that predate these rules cannot be edited without breaking `migrate deploy`
for existing installs; they are named once, and the rules bind everything after.
"""
return [
(name, sql) for name, sql in all_migrations if name not in _PRE_GUARD_MIGRATIONS
]
class TestMigrationSQLIdempotency:
"""Ensure all migration SQL files use idempotent DDL (IF [NOT] EXISTS).
Migrations on pre-existing instances can fail when DDL statements assume
the target object doesn't already exist (or still exists for drops).
These tests enforce that all migrations use safe, re-runnable SQL patterns.
"""
@pytest.fixture(scope="class")
def all_migrations(self):
migrations = _get_all_migrations()
assert len(migrations) > 0, (
f"No migrations found. "
f"Check that _MIGRATIONS_DIR ({_MIGRATIONS_DIR}) is correct."
)
return migrations
def test_create_table_uses_if_not_exists(self, all_migrations):
"""CREATE TABLE statements must use IF NOT EXISTS"""
violations = []
for migration_name, sql in _guarded_migrations(all_migrations):
for line_num, line in _statements(sql):
if re.search(
r"CREATE\s+TABLE\s+", line, re.IGNORECASE
) and not re.search(
r"CREATE\s+TABLE\s+IF\s+NOT\s+EXISTS", line, re.IGNORECASE
):
violations.append(f" {migration_name}:{line_num}: {line.strip()}")
assert (
not violations
), "CREATE TABLE without IF NOT EXISTS found in migrations:\n" + "\n".join(
violations
)
def test_add_column_uses_if_not_exists(self, all_migrations):
"""ADD COLUMN statements must use IF NOT EXISTS"""
violations = []
for migration_name, sql in _guarded_migrations(all_migrations):
for line_num, line in _statements(sql):
if re.search(r"ADD\s+COLUMN\s+", line, re.IGNORECASE) and not re.search(
r"ADD\s+COLUMN\s+IF\s+NOT\s+EXISTS", line, re.IGNORECASE
):
violations.append(f" {migration_name}:{line_num}: {line.strip()}")
assert not violations, (
"ADD COLUMN without IF NOT EXISTS found in recent migrations:\n"
+ "\n".join(violations)
)
def test_drop_column_uses_if_exists(self, all_migrations):
"""DROP COLUMN statements must use IF EXISTS"""
violations = []
for migration_name, sql in _guarded_migrations(all_migrations):
for line_num, line in _statements(sql):
if re.search(
r"DROP\s+COLUMN\s+", line, re.IGNORECASE
) and not re.search(
r"DROP\s+COLUMN\s+IF\s+EXISTS", line, re.IGNORECASE
):
violations.append(f" {migration_name}:{line_num}: {line.strip()}")
assert (
not violations
), "DROP COLUMN without IF EXISTS found in recent migrations:\n" + "\n".join(
violations
)
_DROP_COLUMN_ALLOWLIST = {
"20250918083359_drop_spec_version_column_from_mcp_table",
"20260213170952_access_group_change_to_model_name",
"20260224203854_add_agent_object_permissions_table",
}
def test_no_drop_column_statements(self, all_migrations):
"""Migrations must not drop columns — dropping columns is destructive
and can break running application instances during rolling deploys."""
violations = []
for migration_name, sql in all_migrations:
if migration_name in self._DROP_COLUMN_ALLOWLIST:
continue
for line_num, line in _statements(sql):
if re.search(r"DROP\s+COLUMN", line, re.IGNORECASE):
violations.append(f" {migration_name}:{line_num}: {line.strip()}")
assert (
not violations
), "DROP COLUMN found in migrations (destructive, not allowed):\n" + "\n".join(
violations
)
def test_drop_index_uses_if_exists(self, all_migrations):
"""DROP INDEX statements must use IF EXISTS"""
violations = []
for migration_name, sql in _guarded_migrations(all_migrations):
for line_num, line in _statements(sql):
if re.search(r"DROP\s+INDEX\s+", line, re.IGNORECASE) and not re.search(
r"DROP\s+INDEX\s+IF\s+EXISTS", line, re.IGNORECASE
):
violations.append(f" {migration_name}:{line_num}: {line.strip()}")
assert (
not violations
), "DROP INDEX without IF EXISTS found in recent migrations:\n" + "\n".join(
violations
)
def test_create_index_uses_if_not_exists(self, all_migrations):
"""CREATE INDEX statements must use IF NOT EXISTS"""
violations = []
for migration_name, sql in _guarded_migrations(all_migrations):
for line_num, line in _statements(sql):
if re.search(
r"CREATE\s+(?:UNIQUE\s+)?INDEX\s+", line, re.IGNORECASE
) and not re.search(
r"CREATE\s+(?:UNIQUE\s+)?INDEX\s+(?:CONCURRENTLY\s+)?IF\s+NOT\s+EXISTS",
line,
re.IGNORECASE,
):
violations.append(f" {migration_name}:{line_num}: {line.strip()}")
assert not violations, (
"CREATE INDEX without IF NOT EXISTS found in recent migrations:\n"
+ "\n".join(violations)
)
def test_rename_column_is_guarded(self, all_migrations):
"""RENAME COLUMN must be inside a DO $$ IF EXISTS block"""
violations = []
for migration_name, sql in _guarded_migrations(all_migrations):
in_do_block = False
for line_num, line in _statements(sql):
if re.search(r"DO\s+\$\$", line, re.IGNORECASE):
in_do_block = True
if re.search(r"END\s+\$\$", line, re.IGNORECASE):
in_do_block = False
if (
re.search(r"RENAME\s+COLUMN\s+", line, re.IGNORECASE)
and not in_do_block
):
violations.append(f" {migration_name}:{line_num}: {line.strip()}")
assert not violations, (
"RENAME COLUMN without DO $$ IF EXISTS guard found in migrations:\n"
+ "\n".join(violations)
)
def test_add_constraint_is_guarded(self, all_migrations):
"""ADD CONSTRAINT must be inside a DO $$ IF NOT EXISTS block"""
violations = []
for migration_name, sql in _guarded_migrations(all_migrations):
in_do_block = False
for line_num, line in _statements(sql):
if re.search(r"DO\s+\$\$", line, re.IGNORECASE):
in_do_block = True
if re.search(r"END\s+\$\$", line, re.IGNORECASE):
in_do_block = False
if (
re.search(r"ADD\s+CONSTRAINT\s+", line, re.IGNORECASE)
and not in_do_block
):
violations.append(f" {migration_name}:{line_num}: {line.strip()}")
assert not violations, (
"ADD CONSTRAINT without DO $$ IF NOT EXISTS guard found in migrations:\n"
+ "\n".join(violations)
)
def test_drop_constraint_is_guarded(self, all_migrations):
"""DROP CONSTRAINT must be inside a DO $$ IF EXISTS block"""
violations = []
for migration_name, sql in _guarded_migrations(all_migrations):
in_do_block = False
for line_num, line in _statements(sql):
if re.search(r"DO\s+\$\$", line, re.IGNORECASE):
in_do_block = True
if re.search(r"END\s+\$\$", line, re.IGNORECASE):
in_do_block = False
if (
re.search(r"DROP\s+CONSTRAINT\s+", line, re.IGNORECASE)
and not in_do_block
):
violations.append(f" {migration_name}:{line_num}: {line.strip()}")
assert not violations, (
"DROP CONSTRAINT without DO $$ IF EXISTS guard found in migrations:\n"
+ "\n".join(violations)
)
class TestMigrationGuardScope:
"""The guard must ignore SQL comments, exempt only the named pre-guard migrations,
and still fail on a new migration that uses bare DDL."""
_NEW = "20990101000000_a_new_migration"
def _run_rules(self, migrations):
suite = TestMigrationSQLIdempotency()
failures = []
for name in (
"test_create_table_uses_if_not_exists",
"test_add_column_uses_if_not_exists",
"test_create_index_uses_if_not_exists",
"test_add_constraint_is_guarded",
):
try:
getattr(suite, name)(migrations)
except AssertionError:
failures.append(name)
return failures
def test_a_comment_describing_ddl_is_not_the_ddl(self):
sql = '-- CREATE TABLE "Foo" (id TEXT);\n-- ADD COLUMN "bar" TEXT;\n'
assert self._run_rules([(self._NEW, sql)]) == []
def test_a_prisma_warning_block_is_not_the_ddl_it_describes(self):
sql = (
"/*\n"
" Warnings:\n"
"\n"
" - You are about to CREATE TABLE \"Foo\" and ADD COLUMN \"bar\".\n"
"\n"
"*/\n"
'CREATE TABLE IF NOT EXISTS "Foo" (id TEXT);\n'
)
assert self._run_rules([(self._NEW, sql)]) == []
def test_a_block_comment_does_not_shift_the_reported_line(self):
sql = "/* filler\nfiller */\n" + 'CREATE TABLE "Foo" (id TEXT);\n'
suite = TestMigrationSQLIdempotency()
with pytest.raises(AssertionError) as failure:
suite.test_create_table_uses_if_not_exists([(self._NEW, sql)])
assert f"{self._NEW}:3:" in str(failure.value)
def test_a_new_migration_with_bare_create_table_fails(self):
assert "test_create_table_uses_if_not_exists" in self._run_rules(
[(self._NEW, 'CREATE TABLE "Foo" (id TEXT);\n')]
)
def test_a_new_migration_with_bare_add_column_fails(self):
assert "test_add_column_uses_if_not_exists" in self._run_rules(
[(self._NEW, 'ALTER TABLE "Foo" ADD COLUMN "bar" TEXT;\n')]
)
def test_the_guarded_forms_pass(self):
sql = (
'CREATE TABLE IF NOT EXISTS "Foo" (id TEXT);\n'
'ALTER TABLE "Foo" ADD COLUMN IF NOT EXISTS "bar" TEXT;\n'
'CREATE INDEX IF NOT EXISTS "Foo_bar_idx" ON "Foo"("bar");\n'
)
assert self._run_rules([(self._NEW, sql)]) == []
def test_a_pre_guard_migration_is_exempt_but_a_new_one_is_not(self):
bare = 'CREATE TABLE "Foo" (id TEXT);\n'
exempt = sorted(_PRE_GUARD_MIGRATIONS)[0]
assert self._run_rules([(exempt, bare)]) == []
assert self._run_rules([(self._NEW, bare)]) != []
def test_every_pre_guard_migration_still_exists_on_disk(self):
present = {name for name, _ in _get_all_migrations()}
missing = _PRE_GUARD_MIGRATIONS - present
assert not missing, f"pre-guard entries naming no migration: {sorted(missing)}"
def test_no_pre_guard_entry_is_already_clean(self):
by_name = dict(_get_all_migrations())
redundant = [
name
for name in sorted(_PRE_GUARD_MIGRATIONS)
if not self._run_rules([(TestMigrationGuardScope._NEW, by_name[name])])
]
assert not redundant, f"these no longer violate and should be removed: {redundant}"
_PARTITIONED_DRIFT_SQL = """-- AlterTable
ALTER TABLE "LiteLLM_BudgetTable" ADD COLUMN "updated_by" TEXT;
-- AlterTable
ALTER TABLE "LiteLLM_SpendLogs" DROP CONSTRAINT "LiteLLM_SpendLogs_pkey",
ADD COLUMN "created_at" TIMESTAMP(3) NOT NULL DEFAULT CURRENT_TIMESTAMP,
ADD COLUMN "updated_at" TIMESTAMP(3) NOT NULL DEFAULT CURRENT_TIMESTAMP,
ADD CONSTRAINT "LiteLLM_SpendLogs_pkey" PRIMARY KEY ("request_id");
-- DropTable
DROP TABLE "LiteLLM_SpendLogs_legacy";
"""
class TestPartitionedSpendLogsDriftFilter:
"""A doc-partitioned LiteLLM_SpendLogs (db_scripts/partition_spend_logs.sql) has a
composite primary key that schema.prisma cannot express, so `prisma migrate diff`
emits a primary-key rewrite that Postgres rejects, aborting the whole drift script
before its legitimate statements run."""
def test_pk_rewrite_and_runbook_artifact_drops_are_removed(self):
filtered = filter_partitioned_spend_logs_diff(_PARTITIONED_DRIFT_SQL)
assert 'DROP CONSTRAINT "LiteLLM_SpendLogs_pkey"' not in filtered
assert 'PRIMARY KEY ("request_id")' not in filtered
assert "LiteLLM_SpendLogs_legacy" not in filtered
def test_legitimate_statements_in_the_same_script_are_kept(self):
filtered = filter_partitioned_spend_logs_diff(_PARTITIONED_DRIFT_SQL)
assert 'ALTER TABLE "LiteLLM_BudgetTable" ADD COLUMN "updated_by" TEXT;' in filtered
assert 'ADD COLUMN "created_at" TIMESTAMP(3) NOT NULL DEFAULT CURRENT_TIMESTAMP' in filtered
assert 'ADD COLUMN "updated_at" TIMESTAMP(3) NOT NULL DEFAULT CURRENT_TIMESTAMP' in filtered
assert filtered.count('ALTER TABLE "LiteLLM_SpendLogs"') == 1
def test_an_alter_containing_only_the_pk_rewrite_is_dropped_entirely(self):
sql = (
'ALTER TABLE "LiteLLM_SpendLogs" DROP CONSTRAINT "LiteLLM_SpendLogs_pkey",\n'
'ADD CONSTRAINT "LiteLLM_SpendLogs_pkey" PRIMARY KEY ("request_id");\n'
)
assert filter_partitioned_spend_logs_diff(sql).strip() == ""
def test_other_tables_pk_changes_are_untouched(self):
sql = (
'ALTER TABLE "LiteLLM_TeamTable" DROP CONSTRAINT "LiteLLM_TeamTable_pkey",\n'
'ADD CONSTRAINT "LiteLLM_TeamTable_pkey" PRIMARY KEY ("team_id");\n'
)
filtered = filter_partitioned_spend_logs_diff(sql)
assert 'DROP CONSTRAINT "LiteLLM_TeamTable_pkey"' in filtered
assert 'PRIMARY KEY ("team_id")' in filtered
class _FakeCompleted:
stdout = ""
stderr = ""
class TestResolveAllMigrationsLedger:
def _run(self, monkeypatch, tmp_path, partitioned, execute_fails):
import subprocess as subprocess_module
import litellm_proxy_extras.utils as utils_module
monkeypatch.setenv("DATABASE_URL", "postgresql://u:p@localhost:5432/db")
monkeypatch.delenv("DIRECT_URL", raising=False)
monkeypatch.setattr(
ProxyExtrasDBManager, "spend_logs_is_partitioned", staticmethod(lambda: partitioned)
)
monkeypatch.setattr(
ProxyExtrasDBManager,
"_get_migration_names",
staticmethod(lambda migrations_dir: ["20250326162113_baseline"]),
)
calls = []
def fake_run(cmd, **kwargs):
calls.append(cmd)
if "diff" in cmd:
kwargs["stdout"].write(_PARTITIONED_DRIFT_SQL)
return _FakeCompleted()
if "execute" in cmd:
executed_sql = open(cmd[cmd.index("--file") + 1]).read()
calls.append(("executed_sql", executed_sql))
if execute_fails:
raise subprocess_module.CalledProcessError(1, cmd, stderr="boom")
return _FakeCompleted()
return _FakeCompleted()
monkeypatch.setattr(utils_module.subprocess, "run", fake_run)
ProxyExtrasDBManager._resolve_all_migrations(str(tmp_path), "schema.prisma")
return calls
def _resolved(self, calls):
return [c for c in calls if isinstance(c, list) and "resolve" in c]
def _executed_sql(self, calls):
return next(c[1] for c in calls if isinstance(c, tuple) and c[0] == "executed_sql")
def test_failed_drift_apply_does_not_mark_migrations_applied(self, monkeypatch, tmp_path):
calls = self._run(monkeypatch, tmp_path, partitioned=False, execute_fails=True)
assert self._resolved(calls) == []
def test_successful_drift_apply_still_marks_migrations_applied(self, monkeypatch, tmp_path):
calls = self._run(monkeypatch, tmp_path, partitioned=False, execute_fails=False)
assert len(self._resolved(calls)) == 1
def test_partitioned_spend_logs_gets_the_filtered_drift_script(self, monkeypatch, tmp_path):
calls = self._run(monkeypatch, tmp_path, partitioned=True, execute_fails=False)
executed_sql = self._executed_sql(calls)
assert 'PRIMARY KEY ("request_id")' not in executed_sql
assert "LiteLLM_SpendLogs_legacy" not in executed_sql
assert 'ALTER TABLE "LiteLLM_BudgetTable" ADD COLUMN "updated_by" TEXT;' in executed_sql
assert 'ADD COLUMN "created_at" TIMESTAMP(3) NOT NULL DEFAULT CURRENT_TIMESTAMP' in executed_sql
assert len(self._resolved(calls)) == 1
def test_unpartitioned_spend_logs_drift_script_is_untouched(self, monkeypatch, tmp_path):
calls = self._run(monkeypatch, tmp_path, partitioned=False, execute_fails=False)
assert self._executed_sql(calls) == _PARTITIONED_DRIFT_SQL
class TestPartitionedSpendLogsPushGuard:
def _forbid_subprocess(self, monkeypatch):
import litellm_proxy_extras.utils as utils_module
def fail_run(cmd, **kwargs):
raise AssertionError(f"subprocess.run should not be called, got: {cmd}")
monkeypatch.setattr(utils_module.subprocess, "run", fail_run)
def test_v1_db_push_fails_fast_with_guidance(self, monkeypatch):
monkeypatch.setattr(
ProxyExtrasDBManager, "spend_logs_is_partitioned", staticmethod(lambda: True)
)
self._forbid_subprocess(monkeypatch)
with pytest.raises(RuntimeError) as err:
ProxyExtrasDBManager._run_migrations(use_migrate=False, use_v2_resolver=False)
assert str(err.value) == PARTITIONED_SPEND_LOGS_PUSH_ERROR
def test_v2_db_push_fails_fast_with_guidance(self, monkeypatch):
monkeypatch.setattr(
ProxyExtrasDBManager, "spend_logs_is_partitioned", staticmethod(lambda: True)
)
self._forbid_subprocess(monkeypatch)
with pytest.raises(RuntimeError) as err:
ProxyExtrasDBManager._setup_database_v2(use_migrate=False)
assert str(err.value) == PARTITIONED_SPEND_LOGS_PUSH_ERROR
class _FakeCursor:
def fetchone(self):
return (1,)
class _FakePsycopgConn:
def __init__(self, executed):
self._executed = executed
def __enter__(self):
return self
def __exit__(self, *args):
return False
def execute(self, query, params):
self._executed.append((query, params))
return _FakeCursor()
class TestSpendLogsPartitionDetectionSchemaScope:
"""A same-named LiteLLM_SpendLogs in another schema must not trip the
detector: the catalog lookup has to be scoped to Prisma's target schema."""
def _detect(self, monkeypatch, database_url):
import sys
import types
executed = []
fake_psycopg = types.ModuleType("psycopg")
fake_psycopg.connect = lambda url, **kwargs: _FakePsycopgConn(executed)
fake_psycopg.OperationalError = type("OperationalError", (Exception,), {})
fake_psycopg.DatabaseError = type("DatabaseError", (Exception,), {})
monkeypatch.setitem(sys.modules, "psycopg", fake_psycopg)
monkeypatch.setenv("DATABASE_URL", database_url)
assert ProxyExtrasDBManager.spend_logs_is_partitioned() is True
return executed[0]
def test_lookup_is_scoped_to_the_schema_url_param(self, monkeypatch):
query, params = self._detect(
monkeypatch, "postgresql://u:p@localhost:5432/db?schema=tenant_a"
)
assert "pg_namespace" in query
assert "n.nspname = %s" in query
assert params == ("tenant_a",)
def test_lookup_falls_back_to_public_without_a_schema_param(self, monkeypatch):
query, params = self._detect(monkeypatch, "postgresql://u:p@localhost:5432/db")
assert "n.nspname = %s" in query
assert params == ("public",)
def test_only_partitioned_relations_match(self, monkeypatch):
query, _ = self._detect(monkeypatch, "postgresql://u:p@localhost:5432/db")
assert "pg_partitioned_table" in query
class TestSpendLogsPartitionDetectionMissingPsycopg:
"""psycopg ships in the `extra_proxy` install, but a stripped-down image
can still lack it. When it does, detection must fail closed to False
(never crash the migration path) and say so loudly, because a silent
False here is what let a genuinely partitioned LiteLLM_SpendLogs hit the
unfiltered primary-key rewrite in production."""
def test_missing_psycopg_returns_false(self, monkeypatch):
monkeypatch.setitem(sys.modules, "psycopg", None)
monkeypatch.setenv("DATABASE_URL", "postgresql://u:p@localhost:5432/db")
assert ProxyExtrasDBManager.spend_logs_is_partitioned() is False
def test_missing_psycopg_logs_a_warning(self, monkeypatch, caplog):
monkeypatch.setitem(sys.modules, "psycopg", None)
monkeypatch.setenv("DATABASE_URL", "postgresql://u:p@localhost:5432/db")
with caplog.at_level("WARNING", logger="litellm_proxy_extras"):
ProxyExtrasDBManager.spend_logs_is_partitioned()
assert any(
"psycopg is not installed" in record.message for record in caplog.records
)
_ATTEMPT_BUDGET = 4
_P3005_STDERR = """Error: P3005
The database schema is not empty. Read more about how to baseline an existing production database: https://pris.ly/d/migrate-baseline
"""
def _p3018_stderr(migration_name):
return f"""Error: P3018
A migration failed to apply. New migrations cannot be applied before the error is recovered from.
Migration name: {migration_name}
Database error code: 42P07
Database error:
ERROR: relation "SomeTable" already exists
"""
class _MigrateDeployHarness:
"""Drives _setup_database_v2 with a scripted sequence of
`prisma migrate deploy` outcomes, with every recovery command faked out so
nothing touches a database or the packaged migrations directory."""
def __init__(self, monkeypatch, tmp_path, outcomes, repeat_last=False):
import subprocess as subprocess_module
import litellm_proxy_extras.utils as utils_module
self.deploy_calls = []
self.resolved = []
self.baselines = 0
self._outcomes = list(outcomes)
self._repeat_last = repeat_last
self._subprocess_module = subprocess_module
monkeypatch.delenv("DATABASE_URL", raising=False)
monkeypatch.setattr(
ProxyExtrasDBManager, "_get_prisma_dir", staticmethod(lambda: str(tmp_path))
)
monkeypatch.setattr(
ProxyExtrasDBManager,
"_create_baseline_migration",
staticmethod(self._fake_baseline),
)
monkeypatch.setattr(
ProxyExtrasDBManager,
"_roll_back_migration",
staticmethod(lambda name: None),
)
monkeypatch.setattr(
ProxyExtrasDBManager,
"_resolve_specific_migration",
staticmethod(self.resolved.append),
)
monkeypatch.setattr(utils_module.subprocess, "run", self._fake_run)
monkeypatch.setattr(utils_module.time, "sleep", lambda seconds: None)
self.baseline_succeeds = True
def _fake_baseline(self, *args, **kwargs):
self.baselines += 1
return self.baseline_succeeds
def _next_outcome(self):
if self._outcomes:
if self._repeat_last and len(self._outcomes) == 1:
return self._outcomes[0]
return self._outcomes.pop(0)
raise AssertionError("prisma migrate deploy called more times than scripted")
def _fake_run(self, cmd, **kwargs):
assert cmd[1:] == ["migrate", "deploy"], f"unexpected prisma command: {cmd}"
self.deploy_calls.append(cmd)
outcome = self._next_outcome()
if outcome == "ok":
return _FakeCompleted()
if outcome == "timeout":
raise self._subprocess_module.TimeoutExpired(cmd, 1)
raise self._subprocess_module.CalledProcessError(1, cmd, stderr=outcome)
def run(self):
return ProxyExtrasDBManager._setup_database_v2(use_migrate=True)
class TestMigrateDeployAttemptAccounting:
"""A `prisma db push` database has a full schema and no ledger, so the v2
resolver baselines it and then works through every migration whose objects
already exist. Those recoveries make progress, so they must not spend the
retry budget, which is there to stop a run that is getting nowhere."""
def test_a_push_created_database_finishes_bootstrapping(
self, monkeypatch, tmp_path
):
already_there = [
"20250329084805_new_cron_job_table",
"20250806095134_rename_alias_to_server_name_mcp_table",
"20260224203854_add_agent_object_permissions_table",
"20260301120000_fourth_table",
"20260302120000_fifth_table",
"20260303120000_sixth_table",
]
harness = _MigrateDeployHarness(
monkeypatch,
tmp_path,
[_P3005_STDERR]
+ [_p3018_stderr(name) for name in already_there]
+ ["ok"],
)
assert harness.run() is True
assert harness.baselines == 1
assert harness.resolved == already_there
assert len(harness.deploy_calls) == len(already_there) + 2
def test_repeated_recovery_of_one_migration_still_gives_up(
self, monkeypatch, tmp_path
):
harness = _MigrateDeployHarness(
monkeypatch,
tmp_path,
[_p3018_stderr("20250329084805_new_cron_job_table")],
repeat_last=True,
)
with pytest.raises(RuntimeError):
harness.run()
assert len(harness.deploy_calls) <= _ATTEMPT_BUDGET + 1
def test_timeouts_still_spend_the_budget(self, monkeypatch, tmp_path):
harness = _MigrateDeployHarness(
monkeypatch, tmp_path, ["timeout"], repeat_last=True
)
with pytest.raises(RuntimeError):
harness.run()
assert len(harness.deploy_calls) == _ATTEMPT_BUDGET
def test_a_baseline_that_never_lands_stops_after_the_budget(
self, monkeypatch, tmp_path
):
harness = _MigrateDeployHarness(
monkeypatch, tmp_path, [_P3005_STDERR], repeat_last=True
)
harness.baseline_succeeds = False
with pytest.raises(RuntimeError):
harness.run()
assert len(harness.deploy_calls) == _ATTEMPT_BUDGET
def test_an_unrecoverable_error_is_not_retried(self, monkeypatch, tmp_path):
harness = _MigrateDeployHarness(
monkeypatch,
tmp_path,
["Error: P3018\n\nMigration name: 20260101000000_x\n\nERROR: syntax error at or near \"SLECT\"\n"],
repeat_last=True,
)
with pytest.raises(RuntimeError):
harness.run()
assert len(harness.deploy_calls) == 1
assert harness.resolved == []