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https://github.com/open-metadata/OpenMetadata.git
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a853561d30
* fix: data sample ingestion bigquery * style: ran python linting * fix: flaky test in topology
284 lines
9.1 KiB
Python
284 lines
9.1 KiB
Python
# Copyright 2025 Collate
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# Licensed under the Collate Community License, Version 1.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain a copy of the License at
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# https://github.com/open-metadata/OpenMetadata/blob/main/ingestion/LICENSE
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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"""
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Check that we are properly running nodes and stages
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"""
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from typing import List, Optional
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from unittest import TestCase
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from unittest.mock import patch
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from pydantic import BaseModel, Field
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from typing_extensions import Annotated
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from metadata.ingestion.api.models import Either
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from metadata.ingestion.api.topology_runner import TopologyRunnerMixin
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from metadata.ingestion.models.topology import (
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NodeStage,
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ServiceTopology,
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TopologyContextManager,
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TopologyNode,
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)
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from metadata.ingestion.ometa.ometa_api import OpenMetadata
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from metadata.utils.source_hash import generate_source_hash
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class MockSchema(BaseModel):
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sourceHash: Optional[str] = None
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name: str
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# Keeping it None to reuse the same class for Create and Entity
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fullyQualifiedName: Optional[str] = None
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class MockTable(BaseModel):
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sourceHash: Optional[str] = None
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name: str
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# Keeping it None to reuse the same class for Create and Entity
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fullyQualifiedName: Optional[str] = None
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columns: List[str]
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class MockTopology(ServiceTopology):
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root: Annotated[
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TopologyNode, Field(description="Root node for the topology")
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] = TopologyNode(
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producer="get_schemas",
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stages=[
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NodeStage(
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type_=MockSchema,
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processor="yield_schemas",
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context="schemas",
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)
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],
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children=["tables"],
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post_process=["yield_hello"],
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)
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tables: Annotated[TopologyNode, Field(description="Ingest tables")] = TopologyNode(
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producer="get_tables",
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stages=[
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NodeStage(
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type_=MockTable,
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processor="yield_tables",
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consumer=["schemas"],
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context="tables",
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)
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],
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threads=True,
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)
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class MockSource(TopologyRunnerMixin):
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topology = MockTopology()
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context = TopologyContextManager(topology)
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@staticmethod
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def get_schemas():
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yield "schema1"
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yield "schema2"
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@staticmethod
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def get_tables():
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yield "table1"
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yield "table2"
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@staticmethod
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def yield_schemas(name: str):
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yield Either(right=MockSchema(name=name))
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@staticmethod
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def yield_tables(name: str):
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yield Either(right=MockTable(name=name, columns=["c1", "c2"]))
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@staticmethod
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def yield_hello():
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yield "hello"
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class TopologyRunnerTest(TestCase):
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"""Validate filter patterns"""
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source = MockSource()
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def test_source_hash(self):
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"""Check it works with generic models"""
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mock_table = MockTable(name="name", columns=["a", "b", "c"])
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real_fingerprint = "b4c6559d2fab833ba348c6bd98054b94"
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self.assertEqual(real_fingerprint, generate_source_hash(mock_table))
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# if we exclude some other field, the fingerprint should not match
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self.assertNotEqual(
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real_fingerprint,
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generate_source_hash(mock_table, exclude_fields={"columns": True}),
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)
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def test_node_and_stage(self):
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"""The step behaves properly"""
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self.source.context = TopologyContextManager(self.source.topology)
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self.source.context.set_threads(0)
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with patch(
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"metadata.ingestion.models.topology.TopologyContextManager.pop",
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return_value=None,
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):
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processed = list(self.source._iter())
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self.assertEqual(len(self.source.context.contexts.keys()), 1)
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self.assertEqual(
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# check the post process being at the end
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[
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either.right if hasattr(either, "right") else either
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for either in processed
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],
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[
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MockSchema(
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name="schema1", sourceHash="6414db364af730c9f34cdd705664dfbf"
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),
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MockTable(
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name="table1",
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sourceHash="b3765a609adc20d8382eea0e595233cc",
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columns=["c1", "c2"],
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),
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MockTable(
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name="table2",
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sourceHash="37e964e369aa225211aa87b388b1e7d2",
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columns=["c1", "c2"],
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),
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MockSchema(
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name="schema2", sourceHash="3e1fafb67d34fb25bec7adf59042da87"
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),
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MockTable(
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name="table1",
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sourceHash="b3765a609adc20d8382eea0e595233cc",
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columns=["c1", "c2"],
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),
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MockTable(
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name="table2",
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sourceHash="37e964e369aa225211aa87b388b1e7d2",
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columns=["c1", "c2"],
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),
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"hello",
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],
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)
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def test_multithread_node_and_stage(self):
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"""The step behaves properly"""
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self.source.context = TopologyContextManager(self.source.topology)
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self.source.context.set_threads(2)
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# Avoid removing the ThreadIds from the TopologyContextManager dict.
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with patch(
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"metadata.ingestion.models.topology.TopologyContextManager.pop",
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return_value=None,
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):
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processed = list(self.source._iter())
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# Since the threads can be reused or some other ID generated we are unsure the amount of contexts we
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# will get.
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self.assertGreater(len(self.source.context.contexts.keys()), 1)
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self.assertCountEqual(
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# check the post process being at the end
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[
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either.right if hasattr(either, "right") else either
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for either in processed
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],
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[
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MockSchema(
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name="schema1", sourceHash="6414db364af730c9f34cdd705664dfbf"
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),
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MockTable(
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name="table1",
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sourceHash="b3765a609adc20d8382eea0e595233cc",
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columns=["c1", "c2"],
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),
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MockTable(
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name="table2",
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sourceHash="37e964e369aa225211aa87b388b1e7d2",
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columns=["c1", "c2"],
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),
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MockSchema(
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name="schema2", sourceHash="3e1fafb67d34fb25bec7adf59042da87"
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),
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MockTable(
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name="table1",
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sourceHash="b3765a609adc20d8382eea0e595233cc",
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columns=["c1", "c2"],
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),
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MockTable(
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name="table2",
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sourceHash="37e964e369aa225211aa87b388b1e7d2",
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columns=["c1", "c2"],
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),
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"hello",
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],
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)
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def test_get_children(self):
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"""We get the right children information"""
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self.assertEqual(
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self.source._get_child_nodes(self.source.topology.root),
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[self.source.topology.tables],
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)
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self.assertEqual(self.source._get_child_nodes(self.source.topology.tables), [])
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def test_run_node_post_process(self):
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"""We get the right post_process results"""
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self.assertEqual(
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list(self.source._run_node_post_process(self.source.topology.root)),
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["hello"],
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)
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self.assertEqual(
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list(self.source._run_node_post_process(self.source.topology.tables)), []
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)
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def test_init_hash_dict(self):
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"""We get the right cache dict"""
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local_source = MockSource()
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mock_list_all_entities = [
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MockTable(
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name="table1",
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fullyQualifiedName="schema1.table1",
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sourceHash="c238b14e87fe6d54e35dbca4a97e1e83",
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columns=["c1", "c2"],
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),
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MockTable(
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name="table2",
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fullyQualifiedName="schema1.table2",
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sourceHash="acd38ff1a662adc0c88225f2666ff423",
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columns=["c1", "c2"],
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),
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]
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with patch.object(
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OpenMetadata, "list_all_entities", return_value=mock_list_all_entities
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):
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local_source.metadata = OpenMetadata
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local_source.get_fqn_source_hash_dict(
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parent_type=MockSchema, child_type=MockTable, entity_fqn="fqn"
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)
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self.assertEqual(
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dict(local_source.cache),
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{
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MockTable: {
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"schema1.table1": "c238b14e87fe6d54e35dbca4a97e1e83",
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"schema1.table2": "acd38ff1a662adc0c88225f2666ff423",
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}
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},
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)
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