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Testing database content with DBUnit. My experience.

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Serhii Kartashov
Serhii Kartashov

The document discusses testing the database layer in a smarter way than usual. It proposes using multiple databases for development, QA, and production environments. The best practice is to initialize test data, call the API, compare the actual database data to the expected data from a file. This can be done using the DBUnit framework which provides components for connecting to a database, representing test data sets, and performing database operations for testing purposes.

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Can you test database layer more smart than usual? Serhii Kartashov December 2012 SoftServe
Agenda What’s a problem? How we want to resolve that? Are you professional?
Agenda What’s a problem? How we want to resolve that? Are you professional?
Problem Task: please remove old and didn’t marked data from production! The problem is this: you have a SQL database, some stored procedures, and a layer of code sitting between your application and the database. How can you put tests in place to make sure your code really is reading and writing the right data from the database?
What’s the best practice? You need [multiple] databases! devQA (local) prodQA production MySQL SQL Oracle Aster MySQL Oracle Aster MySQL Oracle Aster
How I wanted to do that? First step: initialization test data. object file network con. Prepare the data SQL commit
First step: create the Test and call API.
How I wanted to do that? First step: initialization test data. SQL con. Actual Data DB Expected Data Compare
Agenda What’s a problem? How we want to resolve that? Are you professional?
Ideal schema Step 1 Step 2 Step 3 Initialize call API Actual data DB DB DB Expected data Compare File File
Agenda What’s a problem? How we want to resolve that? Are you professional?
DBUnit Framework
DBUnit Core Components • IDatabaseConnection - interface representing a DbUnit connection to a DB • IDataSet - interface representing a collection of tables • DatabaseOperation - abstract class representing an operation performed on the database before and after each test. Operations: • NONE • UPDATE • INSERT • REFRESH • DELETE • DELETE_ALL • TRUNCATE_TABLE • CLEAN_INSERT (DELETE_ALL and INSERT)
IDatabaseConnection
IDataSet: database DataBase analytics_comments client_id item_id item_name client_id item_id item_name 200 01 name - #1 200 02 name - #2 200 03 name - #3
IDataSet: XML file Initialized Expected
Database Operation: setUp()
Simple JUnit test
A bit more
Supported RDBMS • OracleDatabase • MsSQL • MySQL • IbmDB2 • IbmInformix • H2 • HypersonicSQL • PostgreSQL • SybaseSQL • InterBase • OpenBase8 • SapDB/MaxDB • Derby • FrontBase Where is Aster database??? NOTE: 1. latest version of DBUnit framework doesn’t support Oracle Schemas… 2. and very inert community…
Thank you! Questions?

More Related Content

Testing database content with DBUnit. My experience.

  • 1. Can you test database layer more smart than usual? Serhii Kartashov December 2012 SoftServe
  • 2. Agenda What’s a problem? How we want to resolve that? Are you professional?
  • 3. Agenda What’s a problem? How we want to resolve that? Are you professional?
  • 4. Problem Task: please remove old and didn’t marked data from production! The problem is this: you have a SQL database, some stored procedures, and a layer of code sitting between your application and the database. How can you put tests in place to make sure your code really is reading and writing the right data from the database?
  • 5. What’s the best practice? You need [multiple] databases! devQA (local) prodQA production MySQL SQL Oracle Aster MySQL Oracle Aster MySQL Oracle Aster
  • 6. How I wanted to do that? First step: initialization test data. object file network con. Prepare the data SQL commit
  • 7. First step: create the Test and call API.
  • 8. How I wanted to do that? First step: initialization test data. SQL con. Actual Data DB Expected Data Compare
  • 9. Agenda What’s a problem? How we want to resolve that? Are you professional?
  • 10. Ideal schema Step 1 Step 2 Step 3 Initialize call API Actual data DB DB DB Expected data Compare File File
  • 11. Agenda What’s a problem? How we want to resolve that? Are you professional?
  • 13. DBUnit Core Components • IDatabaseConnection - interface representing a DbUnit connection to a DB • IDataSet - interface representing a collection of tables • DatabaseOperation - abstract class representing an operation performed on the database before and after each test. Operations: • NONE • UPDATE • INSERT • REFRESH • DELETE • DELETE_ALL • TRUNCATE_TABLE • CLEAN_INSERT (DELETE_ALL and INSERT)
  • 15. IDataSet: database DataBase analytics_comments client_id item_id item_name client_id item_id item_name 200 01 name - #1 200 02 name - #2 200 03 name - #3
  • 16. IDataSet: XML file Initialized Expected
  • 20. Supported RDBMS • OracleDatabase • MsSQL • MySQL • IbmDB2 • IbmInformix • H2 • HypersonicSQL • PostgreSQL • SybaseSQL • InterBase • OpenBase8 • SapDB/MaxDB • Derby • FrontBase Where is Aster database??? NOTE: 1. latest version of DBUnit framework doesn’t support Oracle Schemas… 2. and very inert community…