Github user HyukjinKwon commented on a diff in the pull request:
https://github.com/apache/spark/pull/17227#discussion_r125204915
--- Diff: python/pyspark/sql/tests.py ---
@@ -2367,6 +2380,162 @@ def range_frame_match():
importlib.reload(window)
+
+class TypesTest(unittest.TestCase):
+
+ def test_verify_type_exception_msg(self):
+ name = "test_name"
+ try:
+ _verify_type(None, StringType(), nullable=False, name=name)
+ self.fail('Expected _verify_type() to throw so test can check
exception message')
+ except Exception as e:
+ self.assertTrue(str(e).startswith(name))
+
+ def test_verify_type_ok_nullable(self):
+ obj = None
+ for data_type in [IntegerType(), FloatType(), StringType(),
StructType([])]:
+ msg = "_verify_type(%s, %s, nullable=True)" % (obj, data_type)
+ try:
+ _verify_type(obj, data_type, nullable=True)
+ except Exception as e:
+ traceback.print_exc()
+ self.fail(msg)
+
+ def test_verify_type_not_nullable(self):
+ import array
+ import datetime
+ import decimal
+
+ MyStructType = StructType([
--- End diff --
Could we make the first character this lower-cased? (or maybe just simply
`schema`?)
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