spark-instrumented-optimizer/python/pyspark/ml/tests/test_wrapper.py
Bryan Cutler aeb3649fb9 [SPARK-33613][PYTHON][TESTS] Replace deprecated APIs in pyspark tests
### What changes were proposed in this pull request?

This replaces deprecated API usage in PySpark tests with the preferred APIs. These have been deprecated for some time and usage is not consistent within tests.

- https://docs.python.org/3/library/unittest.html#deprecated-aliases

### Why are the changes needed?

For consistency and eventual removal of deprecated APIs.

### Does this PR introduce _any_ user-facing change?

No

### How was this patch tested?

Existing tests

Closes #30557 from BryanCutler/replace-deprecated-apis-in-tests.

Authored-by: Bryan Cutler <cutlerb@gmail.com>
Signed-off-by: HyukjinKwon <gurwls223@apache.org>
2020-12-01 10:34:40 +09:00

130 lines
5.4 KiB
Python

#
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# 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
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# http://www.apache.org/licenses/LICENSE-2.0
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# Unless required by applicable law or agreed to in writing, software
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import unittest
import py4j
from pyspark.ml.linalg import DenseVector, Vectors
from pyspark.ml.regression import LinearRegression
from pyspark.ml.wrapper import ( # type: ignore[attr-defined]
_java2py, _py2java, JavaParams, JavaWrapper
)
from pyspark.testing.mllibutils import MLlibTestCase
from pyspark.testing.mlutils import SparkSessionTestCase
from pyspark.testing.utils import eventually
class JavaWrapperMemoryTests(SparkSessionTestCase):
def test_java_object_gets_detached(self):
df = self.spark.createDataFrame([(1.0, 2.0, Vectors.dense(1.0)),
(0.0, 2.0, Vectors.sparse(1, [], []))],
["label", "weight", "features"])
lr = LinearRegression(maxIter=1, regParam=0.0, solver="normal", weightCol="weight",
fitIntercept=False)
model = lr.fit(df)
summary = model.summary
self.assertIsInstance(model, JavaWrapper)
self.assertIsInstance(summary, JavaWrapper)
self.assertIsInstance(model, JavaParams)
self.assertNotIsInstance(summary, JavaParams)
error_no_object = 'Target Object ID does not exist for this gateway'
self.assertIn("LinearRegression_", model._java_obj.toString())
self.assertIn("LinearRegressionTrainingSummary", summary._java_obj.toString())
model.__del__()
def condition():
with self.assertRaisesRegex(py4j.protocol.Py4JError, error_no_object):
model._java_obj.toString()
self.assertIn("LinearRegressionTrainingSummary", summary._java_obj.toString())
return True
eventually(condition, timeout=10, catch_assertions=True)
try:
summary.__del__()
except:
pass
def condition():
with self.assertRaisesRegex(py4j.protocol.Py4JError, error_no_object):
model._java_obj.toString()
with self.assertRaisesRegex(py4j.protocol.Py4JError, error_no_object):
summary._java_obj.toString()
return True
eventually(condition, timeout=10, catch_assertions=True)
class WrapperTests(MLlibTestCase):
def test_new_java_array(self):
# test array of strings
str_list = ["a", "b", "c"]
java_class = self.sc._gateway.jvm.java.lang.String
java_array = JavaWrapper._new_java_array(str_list, java_class)
self.assertEqual(_java2py(self.sc, java_array), str_list)
# test array of integers
int_list = [1, 2, 3]
java_class = self.sc._gateway.jvm.java.lang.Integer
java_array = JavaWrapper._new_java_array(int_list, java_class)
self.assertEqual(_java2py(self.sc, java_array), int_list)
# test array of floats
float_list = [0.1, 0.2, 0.3]
java_class = self.sc._gateway.jvm.java.lang.Double
java_array = JavaWrapper._new_java_array(float_list, java_class)
self.assertEqual(_java2py(self.sc, java_array), float_list)
# test array of bools
bool_list = [False, True, True]
java_class = self.sc._gateway.jvm.java.lang.Boolean
java_array = JavaWrapper._new_java_array(bool_list, java_class)
self.assertEqual(_java2py(self.sc, java_array), bool_list)
# test array of Java DenseVectors
v1 = DenseVector([0.0, 1.0])
v2 = DenseVector([1.0, 0.0])
vec_java_list = [_py2java(self.sc, v1), _py2java(self.sc, v2)]
java_class = self.sc._gateway.jvm.org.apache.spark.ml.linalg.DenseVector
java_array = JavaWrapper._new_java_array(vec_java_list, java_class)
self.assertEqual(_java2py(self.sc, java_array), [v1, v2])
# test empty array
java_class = self.sc._gateway.jvm.java.lang.Integer
java_array = JavaWrapper._new_java_array([], java_class)
self.assertEqual(_java2py(self.sc, java_array), [])
# test array of array of strings
str_list = [["a", "b", "c"], ["d", "e"], ["f", "g", "h", "i"], []]
expected_str_list = [("a", "b", "c", None), ("d", "e", None, None), ("f", "g", "h", "i"),
(None, None, None, None)]
java_class = self.sc._gateway.jvm.java.lang.String
java_array = JavaWrapper._new_java_array(str_list, java_class)
self.assertEqual(_java2py(self.sc, java_array), expected_str_list)
if __name__ == "__main__":
from pyspark.ml.tests.test_wrapper import * # noqa: F401
try:
import xmlrunner # type: ignore[import]
testRunner = xmlrunner.XMLTestRunner(output='target/test-reports', verbosity=2)
except ImportError:
testRunner = None
unittest.main(testRunner=testRunner, verbosity=2)