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python_callable_test.py
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96 lines (80 loc) · 2.7 KB
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#
# Licensed to the Apache Software Foundation (ASF) under one or more
# contributor license agreements. See the NOTICE file distributed with
# this work for additional information regarding copyright ownership.
# The ASF licenses this file to You 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.
import os
import unittest
import apache_beam as beam
from apache_beam.utils.python_callable import PythonCallableWithSource
class PythonCallableWithSourceTest(unittest.TestCase):
def test_builtin(self):
self.assertEqual(PythonCallableWithSource.load_from_source('str'), str)
def test_builtin_attribute(self):
self.assertEqual(
PythonCallableWithSource.load_from_source('str.lower'), str.lower)
def test_fully_qualified_name(self):
self.assertEqual(
PythonCallableWithSource.load_from_source('os.path.abspath'),
os.path.abspath)
def test_expression(self):
self.assertEqual(PythonCallableWithSource('lambda x: x*x')(10), 100)
def test_expression_with_dependency(self):
self.assertEqual(
PythonCallableWithSource('import math\nlambda x: math.sqrt(x) + x')(
100),
110)
def test_def(self):
self.assertEqual(
PythonCallableWithSource(
"""
def foo(x):
return x * x
""")(10),
100)
def test_def_with_preamble(self):
self.assertEqual(
PythonCallableWithSource(
"""
def bar(x):
return x + 1
def foo(x):
return bar(x) * x
""")(10),
110)
def test_class(self):
self.assertEqual(
PythonCallableWithSource(
"""
class BareClass:
def __init__(self, x):
self.x = x
""")(10).x,
10)
self.assertEqual(
PythonCallableWithSource(
"""
class SubClass(object):
def __init__(self, x):
self.x = x
""")(10).x,
10)
def test_pycallable_map(self):
p = beam.Pipeline()
result = (
p
| beam.Create([1, 2, 3])
| beam.Map(PythonCallableWithSource("lambda x: x")))
self.assertEqual(result.element_type, int)
if __name__ == '__main__':
unittest.main()