1 files changed, 5 insertions, 0 deletions
diff --git a/python/pyspark/ml/tests.py b/python/pyspark/ml/tests.py
index 224232ed7f..f6159b2c95 100644
--- a/python/pyspark/ml/tests.py
+++ b/python/pyspark/ml/tests.py
@@ -51,6 +51,7 @@ from pyspark.ml.param.shared import HasMaxIter, HasInputCol, HasSeed
 from pyspark.ml.regression import LinearRegression, DecisionTreeRegressor
 from pyspark.ml.tuning import *
 from pyspark.ml.util import keyword_only
+from pyspark.ml.util import MLWritable, MLWriter
 from pyspark.ml.wrapper import JavaWrapper
 from pyspark.mllib.linalg import DenseVector, SparseVector
 from pyspark.sql import DataFrame, SQLContext, Row
@@ -655,6 +656,10 @@ class PersistenceTest(PySparkTestCase):
             except OSError:
                 pass
 
+    def test_write_property(self):
+        lr = LinearRegression(maxIter=1)
+        self.assertTrue(isinstance(lr.write, MLWriter))
+
     def test_decisiontree_classifier(self):
         dt = DecisionTreeClassifier(maxDepth=1)
         path = tempfile.mkdtemp()