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148 lines
4.8 KiB
Python
148 lines
4.8 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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Validate factory and logic to read dataframes from local.
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"""
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from pathlib import Path
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from unittest import TestCase
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from metadata.generated.schema.entity.services.connections.database.datalakeConnection import (
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LocalConfig,
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)
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from metadata.readers.dataframe.models import DatalakeTableSchemaWrapper
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from metadata.readers.dataframe.reader_factory import SupportedTypes
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from metadata.utils.datalake.datalake_utils import fetch_dataframe_first_chunk
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ROOT_PATH = Path(__file__).parent.parent / "resources" / "datalake"
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class TestDataFrameReader(TestCase):
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"""
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Load different files from resources and validate
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that the reader can properly get the df out ot if.
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"""
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def test_dsv_no_extension_reader(self):
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key = ROOT_PATH / "transactions_1"
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df_iter = fetch_dataframe_first_chunk(
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config_source=LocalConfig(),
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client=None,
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file_fqn=DatalakeTableSchemaWrapper(key=str(key), bucket_name="unused", file_extension=SupportedTypes.CSV),
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)
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self.assertIsNotNone(df_iter)
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df_list = list(df_iter)
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self.assertTrue(len(df_list))
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self.assertEqual(df_list[0].shape, (5, 2))
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self.assertEqual(list(df_list[0].columns), ["transaction_id", "transaction_value"])
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def test_dsv_reader(self):
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key = ROOT_PATH / "transactions_1.csv"
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df_iter = fetch_dataframe_first_chunk(
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config_source=LocalConfig(),
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client=None,
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file_fqn=DatalakeTableSchemaWrapper(key=str(key), bucket_name="unused"),
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)
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self.assertIsNotNone(df_iter)
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df_list = list(df_iter)
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self.assertTrue(len(df_list))
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self.assertEqual(df_list[0].shape, (5, 2))
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self.assertEqual(list(df_list[0].columns), ["transaction_id", "transaction_value"])
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def test_dsv_reader_with_separator(self):
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key = ROOT_PATH / "transactions_separator.csv"
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df_iter = fetch_dataframe_first_chunk(
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config_source=LocalConfig(),
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client=None,
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file_fqn=DatalakeTableSchemaWrapper(key=str(key), bucket_name="unused", separator=";"),
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)
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self.assertIsNotNone(df_iter)
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df_list = list(df_iter)
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self.assertTrue(len(df_list))
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self.assertEqual(df_list[0].shape, (5, 2))
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self.assertEqual(list(df_list[0].columns), ["transaction_id", "transaction_value"])
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def test_json_reader(self):
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key = ROOT_PATH / "employees.json"
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df_iter = fetch_dataframe_first_chunk(
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config_source=LocalConfig(),
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client=None,
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file_fqn=DatalakeTableSchemaWrapper(key=str(key), bucket_name="unused"),
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)
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self.assertIsNotNone(df_iter)
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df_list = list(df_iter)
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self.assertTrue(len(df_list))
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self.assertEqual(df_list[0].shape, (4, 4))
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self.assertEqual(
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list(df_list[0].columns),
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["name", "id", "version", "Company"],
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)
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def test_jsonl_reader(self):
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key = ROOT_PATH / "employees.jsonl"
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df_iter = fetch_dataframe_first_chunk(
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config_source=LocalConfig(),
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client=None,
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file_fqn=DatalakeTableSchemaWrapper(key=str(key), bucket_name="unused"),
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)
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self.assertIsNotNone(df_iter)
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df_list = list(df_iter)
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self.assertTrue(len(df_list))
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self.assertEqual(df_list[0].shape, (4, 4))
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self.assertEqual(
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list(df_list[0].columns),
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["name", "id", "version", "Company"],
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)
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def test_avro_reader(self):
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key = ROOT_PATH / "example.avro"
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df_iter = fetch_dataframe_first_chunk(
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config_source=LocalConfig(),
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client=None,
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file_fqn=DatalakeTableSchemaWrapper(key=str(key), bucket_name="unused"),
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)
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self.assertIsNotNone(df_iter)
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df_list = list(df_iter)
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self.assertTrue(len(df_list))
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self.assertEqual(df_list[0].shape, (4, 8))
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self.assertEqual(
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list(df_list[0].columns),
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[
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"Boolean",
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"pdBoolean",
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"Float64",
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"Int64",
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"pdInt64",
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"String",
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"pdString",
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"DateTime64",
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],
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)
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