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test_schema.py
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50 lines (41 loc) · 1.73 KB
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# Copyright 2022 The FeatHub Authors
#
# 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
#
# https://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.
import unittest
from feathub.common import types
from feathub.common.exceptions import FeathubException
from feathub.table.schema import Schema
class SchemaTest(unittest.TestCase):
def test_schema_builder(self):
schema = (
Schema.new_builder()
.column("a", types.Int64)
.column("b", types.Int32)
.column("c", types.Float32)
.build()
)
self.assertEqual(
Schema(["a", "b", "c"], [types.Int64, types.Int32, types.Float32]), schema
)
def test_schema_builder_duplicate_column_name(self):
with self.assertRaises(FeathubException) as cm:
Schema.new_builder().column("a", types.Int64).column(
"a", types.Int32
).build()
self.assertIn("Column a already defined", cm.exception.args[0])
def test_schema_builder_prohibited_column_name(self):
with self.assertRaises(FeathubException) as cm:
Schema.new_builder().column("__event_time_attribute__", types.Int64).build()
self.assertIn(
"should not start or end with double underscores(__)", cm.exception.args[0]
)