def test_unpersist_rdd(self):
# Arrange
rdd = self.context.spark.sparkContext.parallelize([Row(column1='aa')])
second_rdd = self.context.spark.sparkContext.parallelize(
[Row(column1='bb')])
cardo_dataframe = CardoDataFrame(rdd, '')
cardo_dataframe.persist()
cardo_dataframe.rdd = second_rdd
# Act
cardo_dataframe.unpersist()
# Assert
self.assertFalse(rdd.is_cached)
def test_unpersist_df(self):
# Arrange
df = self.context.spark.createDataFrame([['a']], 'column1: string')
second_df = self.context.spark.createDataFrame([['b']],
'column1: string')
cardo_dataframe = CardoDataFrame(df, '')
cardo_dataframe.persist()
cardo_dataframe.dataframe = second_df
# Act
cardo_dataframe.unpersist()
# Assert
self.assertFalse(df.is_cached)