spark-instrumented-optimizer/python/pyspark/sql/tests/test_utils.py

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from pyspark.sql.functions import sha2
from pyspark.sql.utils import AnalysisException, ParseException, IllegalArgumentException
from pyspark.testing.sqlutils import ReusedSQLTestCase


class UtilsTests(ReusedSQLTestCase):

    def test_capture_analysis_exception(self):
        self.assertRaises(AnalysisException, lambda: self.spark.sql("select abc"))
        self.assertRaises(AnalysisException, lambda: self.df.selectExpr("a + b"))

    def test_capture_user_friendly_exception(self):
        try:
            self.spark.sql("select `中文字段`")
        except AnalysisException as e:
            self.assertRegexpMatches(str(e), "cannot resolve '`中文字段`'")

    def test_capture_parse_exception(self):
        self.assertRaises(ParseException, lambda: self.spark.sql("abc"))

    def test_capture_illegalargument_exception(self):
        self.assertRaisesRegexp(IllegalArgumentException, "Setting negative mapred.reduce.tasks",
                                lambda: self.spark.sql("SET mapred.reduce.tasks=-1"))
        df = self.spark.createDataFrame([(1, 2)], ["a", "b"])
        self.assertRaisesRegexp(IllegalArgumentException, "1024 is not in the permitted values",
                                lambda: df.select(sha2(df.a, 1024)).collect())
        try:
            df.select(sha2(df.a, 1024)).collect()
        except IllegalArgumentException as e:
            self.assertRegexpMatches(e.desc, "1024 is not in the permitted values")
            self.assertRegexpMatches(e.stackTrace,
                                     "org.apache.spark.sql.functions")


if __name__ == "__main__":
    import unittest
    from pyspark.sql.tests.test_utils import *  # noqa: F401

    try:
        import xmlrunner
        testRunner = xmlrunner.XMLTestRunner(output='target/test-reports', verbosity=2)
    except ImportError:
        testRunner = None
    unittest.main(testRunner=testRunner, verbosity=2)