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OpenMetadata/ingestion/tests/unit/topology/database/test_postgres.py
agriev dcebc41e3f
Adds percona server for postgresql support (#19322) 
* percona server for postgresql support

The only meaningful difference is version string in percona server for postgresql. So commit propose universal and safe way to detect server version by integer string, not complicated parsing of unformatted string.

* updated tests with get_server_version_num

commented outdated tests

---------

Co-authored-by: Sriharsha Chintalapani <harshach@users.noreply.github.com>
2025-01-13 17:51:40 -08:00

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# Copyright 2021 Collate
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
# http://www.apache.org/licenses/LICENSE-2.0
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
"""
Test Postgres using the topology
"""
import types
from unittest import TestCase
from unittest.mock import patch
from sqlalchemy.types import VARCHAR
from metadata.generated.schema.entity.data.database import Database
from metadata.generated.schema.entity.data.databaseSchema import DatabaseSchema
from metadata.generated.schema.entity.data.table import Column, Constraint, DataType
from metadata.generated.schema.entity.services.databaseService import (
DatabaseConnection,
DatabaseService,
DatabaseServiceType,
)
from metadata.generated.schema.metadataIngestion.workflow import (
OpenMetadataWorkflowConfig,
)
from metadata.generated.schema.type.entityReference import EntityReference
from metadata.ingestion.source.database.common_pg_mappings import (
GEOMETRY,
POINT,
POLYGON,
)
from metadata.ingestion.source.database.postgres.metadata import PostgresSource
from metadata.ingestion.source.database.postgres.usage import PostgresUsageSource
from metadata.ingestion.source.database.postgres.utils import get_postgres_version
mock_postgres_config = {
"source": {
"type": "postgres",
"serviceName": "local_postgres1",
"serviceConnection": {
"config": {
"type": "Postgres",
"username": "username",
"authType": {
"password": "password",
},
"hostPort": "localhost:5432",
"database": "postgres",
"sslMode": "verify-ca",
"sslConfig": {
"caCertificate": "CA certificate content",
},
}
},
"sourceConfig": {
"config": {
"type": "DatabaseMetadata",
}
},
},
"sink": {
"type": "metadata-rest",
"config": {},
},
"workflowConfig": {
"openMetadataServerConfig": {
"hostPort": "http://localhost:8585/api",
"authProvider": "openmetadata",
"securityConfig": {"jwtToken": "postgres"},
}
},
}
mock_postgres_usage_config = {
"source": {
"type": "postgres-usage",
"serviceName": "local_postgres1",
"serviceConnection": {
"config": {
"type": "Postgres",
"username": "username",
"authType": {
"password": "password",
},
"hostPort": "localhost:5432",
"database": "postgres",
}
},
"sourceConfig": {
"config": {
"type": "DatabaseUsage",
"queryLogDuration": 1,
}
},
},
"sink": {
"type": "metadata-rest",
"config": {},
},
"workflowConfig": {
"openMetadataServerConfig": {
"hostPort": "http://localhost:8585/api",
"authProvider": "openmetadata",
"securityConfig": {"jwtToken": "postgres"},
}
},
}
MOCK_DATABASE_SERVICE = DatabaseService(
id="85811038-099a-11ed-861d-0242ac120002",
name="postgres_source",
connection=DatabaseConnection(),
serviceType=DatabaseServiceType.Postgres,
)
MOCK_DATABASE = Database(
id="2aaa012e-099a-11ed-861d-0242ac120002",
name="118146679784",
fullyQualifiedName="postgres_source.default",
displayName="118146679784",
description="",
service=EntityReference(
id="85811038-099a-11ed-861d-0242ac120002",
type="databaseService",
),
)
MOCK_DATABASE_SCHEMA = DatabaseSchema(
id="2aaa012e-099a-11ed-861d-0242ac120056",
name="default",
fullyQualifiedName="postgres_source.118146679784.default",
displayName="default",
description="",
database=EntityReference(
id="2aaa012e-099a-11ed-861d-0242ac120002",
type="database",
),
service=EntityReference(
id="2aaa012e-099a-11ed-861d-0242ac120002",
type="database",
),
)
MOCK_COLUMN_VALUE = [
{
"name": "username",
"type": VARCHAR(),
"nullable": True,
"default": None,
"autoincrement": False,
"system_data_type": "varchar(50)",
"comment": None,
},
{
"name": "geom_c",
"type": GEOMETRY(),
"nullable": True,
"default": None,
"autoincrement": False,
"system_data_type": "geometry",
"comment": None,
},
{
"name": "point_c",
"type": POINT(),
"nullable": True,
"default": None,
"autoincrement": False,
"system_data_type": "point",
"comment": None,
},
{
"name": "polygon_c",
"type": POLYGON(),
"nullable": True,
"default": None,
"autoincrement": False,
"comment": None,
"system_data_type": "polygon",
},
]
EXPECTED_COLUMN_VALUE = [
Column(
name="username",
displayName=None,
dataType=DataType.VARCHAR,
arrayDataType=None,
dataLength=1,
precision=None,
scale=None,
dataTypeDisplay="varchar(50)",
description=None,
fullyQualifiedName=None,
tags=None,
constraint=Constraint.NULL,
ordinalPosition=None,
jsonSchema=None,
children=None,
customMetrics=None,
profile=None,
),
Column(
name="geom_c",
displayName=None,
dataType=DataType.GEOMETRY,
arrayDataType=None,
dataLength=1,
precision=None,
scale=None,
dataTypeDisplay="geometry",
description=None,
fullyQualifiedName=None,
tags=None,
constraint=Constraint.NULL,
ordinalPosition=None,
jsonSchema=None,
children=None,
customMetrics=None,
profile=None,
),
Column(
name="point_c",
displayName=None,
dataType=DataType.GEOMETRY,
arrayDataType=None,
dataLength=1,
precision=None,
scale=None,
dataTypeDisplay="point",
description=None,
fullyQualifiedName=None,
tags=None,
constraint=Constraint.NULL,
ordinalPosition=None,
jsonSchema=None,
children=None,
customMetrics=None,
profile=None,
),
Column(
name="polygon_c",
displayName=None,
dataType=DataType.GEOMETRY,
arrayDataType=None,
dataLength=1,
precision=None,
scale=None,
dataTypeDisplay="polygon",
description=None,
fullyQualifiedName=None,
tags=None,
constraint=Constraint.NULL,
ordinalPosition=None,
jsonSchema=None,
children=None,
customMetrics=None,
profile=None,
),
]
class PostgresUnitTest(TestCase):
@patch(
"metadata.ingestion.source.database.common_db_source.CommonDbSourceService.test_connection"
)
def __init__(self, methodName, test_connection) -> None:
super().__init__(methodName)
test_connection.return_value = False
self.config = OpenMetadataWorkflowConfig.model_validate(mock_postgres_config)
self.postgres_source = PostgresSource.create(
mock_postgres_config["source"],
self.config.workflowConfig.openMetadataServerConfig,
)
self.postgres_source.context.get().__dict__[
"database_service"
] = MOCK_DATABASE_SERVICE.name.root
self.postgres_source.context.get().__dict__[
"database"
] = MOCK_DATABASE.name.root
self.postgres_source.context.get().__dict__[
"database_schema"
] = MOCK_DATABASE_SCHEMA.name.root
self.usage_config = OpenMetadataWorkflowConfig.model_validate(
mock_postgres_usage_config
)
self.postgres_usage_source = PostgresUsageSource.create(
mock_postgres_usage_config["source"],
self.usage_config.workflowConfig.openMetadataServerConfig,
)
def test_datatype(self):
inspector = types.SimpleNamespace()
inspector.get_columns = (
lambda table_name, schema_name, db_name: MOCK_COLUMN_VALUE
)
inspector.get_pk_constraint = lambda table_name, schema_name: []
inspector.get_unique_constraints = lambda table_name, schema_name: []
inspector.get_foreign_keys = lambda table_name, schema_name: []
result, _, _ = self.postgres_source.get_columns_and_constraints(
"public", "user", "postgres", inspector
)
for i, _ in enumerate(EXPECTED_COLUMN_VALUE):
self.assertEqual(result[i], EXPECTED_COLUMN_VALUE[i])
@patch("sqlalchemy.engine.base.Engine")
def test_get_version_info(self, engine):
# outdated with a switch to get_server_version_num instead of get_+server_version
# engine.execute.return_value = [["15.3 (Debian 15.3-1.pgdg110+1)"]]
# self.assertEqual("15.3", get_postgres_version(engine))
engine.execute.return_value = [["110016"]]
self.assertEqual("110016", get_postgres_version(engine))
engine.execute.return_value = [["90624"]]
self.assertEqual("90624", get_postgres_version(engine))
engine.execute.return_value = [[]]
self.assertIsNone(get_postgres_version(engine))
@patch("sqlalchemy.engine.base.Engine")
@patch(
"metadata.ingestion.source.database.common_db_source.CommonDbSourceService.connection"
)
def test_close_connection(self, engine, connection):
connection.return_value = True
self.postgres_source.close()
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