Java Unit Testing with Unitils
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The document discusses Java unit testing using Unitils, including its history, modular architecture, and integration with frameworks like JUnit, TestNG, and DBUnit. It highlights features such as flexible configuration, database maintenance, and mock creation with EasyMock, as well as the project DBMaintain for automating database updates. Key testing strategies and utilities for assertions and validation are also covered, emphasizing Unitils' capabilities for effective database and JPA integration.
Java Unit Testing with Unitils
- 1. Java Unit Testing with UnitilsMikalai Alimenkouhttp://xpinjection.com21.05.2011
- 2. BackgroundJava Technical Lead/Scrum Master at Zoral Labs6+ years in software development4+ years of working by Agile methodologiesExpert in Agile engineering practicesFounder and coachat XP Injection (http://xpinjection.com)Organizer of Selenium Camp and JEEConf conferences
- 4. Unitils HistorySpring test integrationMulti db supportVarious improvementsUnitils 3.0DbMaintain 2.2Testing guidelinesfrom brainstormSeparate modulesUnitils 2.0Unitils 1.0DbMaintain 2.0DbMaintain separated from UnitilsUnitils RC1
- 5. Unitils FactsOpen sourceIntegrates with JUnit and TestNGModular and flexible architectureLots of useful utilities
- 6. Modular ArchitectureExisting modulesDatabaseModuleDbUnitModuleHibernateModuleMockModuleEasyMockModuleInjectModuleSpringModuleCreate new or change implementationConfigure only needed modules
- 7. Flexible ConfigurationEverything is configurable3 levels of overridden properties
- 8. Database TestingMain problemsMocking or real data?JDBC, Hibernate, JPA, …Testing approachesCreate database, clean databaseLocal transactions
- 9. Unitils SolutionDatabase maintainerSmall test datasets with DbUnit@Transactional supportSeparate schema per developerCustom DataSource for more control
- 10. Database MaintenanceKeep database schema in VCSGreat versioning technique with incremental updatesAbility to disable constraints
- 11. Database MaintenanceSupports large number of databasesPrepares sequences and identity columnsMany options for database and data maintenanceGenerate XSD or DTD for DbUnit datasets
- 12. DbMaintain Projecthttp://www.dbmaintain.orgSeparated from UnitilsCan be used to automate deployment and upgrade procedureVersion 2.3 in May 2011
- 13. DbMaintain Scripts StructureIncremental database updatesCommitted files are unchangeableStrict sequenceSupports repeatable scripts, postprocessing
- 14. DbMaintain Scripts StructureRename of scripts and folders is supportedMulti-database and patches supportScript information is stored in special table
- 15. DbMaintain ExecutionAnt<updateDatabasescriptLocations="${database.archive}"> <database driverClassName="org.hsqldb.jdbcDriver" url="jdbc:hsqldb:mem:mydb" userName="admin" password="pwd" schemaNames="PUBLIC" /> </updateDatabase>Command line/path/to/dbmaintain/bin/dbmaintain.sh update path/to/scriptFolderOrArchiveJava codeURL configurationUrl = new File("dbmaintain.properties").toURI().toURL();MainFactorymainFactory = new MainFactory(configurationUrl);DbMaintainerdbMaintainer = createDbMaintainer();dbMaintainer.updateDatabase(false);
- 17. DbUnit IntegrationSmall test datasetsOnly needed fields presentXSD or DTD for XML datasets validation and autocompletion
- 18. DbUnit IntegrationGranular datasets on class or test levelFlexible datasets naming policyTest and expected datasetsMultiple datasets support
- 19. EasyMock IntegrationTestedObject conceptEasy mocks creation with annotationsCompletely configurable mocksExtended set of parameter conditionsInjection of mocks
- 21. Own Mocking LibraryCan be used in parallel with EasyMockMocking style like in MockitoDummy objectsPartial mocks
- 22. Spring IntegrationContext loading with cachingDifferent types of Spring bean injectionAbility to override beans by loading multiple contexts
- 23. Hibernate IntegrationSpecial test for mapping consistencyEasy to create and inject SessionFactory
- 24. JPA IntegrationSupports Hibernate, Toplink, OpenJPAJpaEntityManagerFactory creates EntityManager for each testJPA utilities for injection and mapping validation
- 25. Assertion UtilitiesReflection basedFlexible comparisonIgnore types of numbers and collectionsIgnore order in collectionsIgnore propertiesAble to compare only some properties
- 26. Assertion UtilitiesSupports object hierarchyGreat differences reportingLenient by default
- 27. Unitils FailuresFirst record in DbUnit dataset should have all columns used further
- 28. Conditions must be set for all parameters in method when using EasyMock
- 29. EasyMock error reports are hard to understandMany bugs in bug tracker
- 30. Any questions?