Spark Programming in Python for Beginners with Apache Spark 3 - DataFrame Rows and Unit Testing

The video tutorial covers scenarios for working with row objects in Spark, converting notebook code to a Spark project, and creating unit tests using Python. It explains setting up a Spark session, creating a schema, and manually creating a DataFrame. The tutorial demonstrates how to validate data types and data in test cases, and how to collect and assert data using the collect method. The video concludes with running tests and confirming their success.

What is the purpose of converting the function to an automated unit test?

Describe the steps involved in setting up a test case using the Python unit test framework.

Explain how you would assert the data type of a column in a DataFrame.

How do you validate the data returned by a DataFrame in Spark?

What is the significance of the collect method in validating DataFrames?