Class TestDatabase

java.lang.Object

petclinic.util.TestDatabase

Direct Known Subclasses:

OwnerData, PetData, VetData, VisitData

public class TestDatabase
extends Object

Base test utility class for domain-specific "EntityXData" classes, which allow each test to create the required data in the test database.

Ensures that tests execute in a database transaction which is always rolled back at the end.

Field Summary

Fields

Modifier and Type	Field	Description
protected Database	db

Constructor Summary

Constructors

Constructor	Description
TestDatabase()

Method Summary

Modifier and Type	Method	Description
final void	assertCreated(BaseEntity newEntity, String qlStatement, Object... qlArgs)	Verifies that a given entity was properly inserted into the database, including the generation of its integer identifier.
final <E extends BaseEntity> E	findOne(String qlStatement, Object... qlArgs)	Finds one entity of the desired type.
final void	refresh(BaseEntity entity)	Refreshes the persistent state of a given entity from the database, so that a test can verify that persistent state was modified as expected.

Methods inherited from class Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Details

db

@Inject
protected Database db

Constructor Details

TestDatabase

public TestDatabase()

Method Details

refresh

public final void refresh(BaseEntity entity)

Refreshes the persistent state of a given entity from the database, so that a test can verify that persistent state was modified as expected.

Parameters:

entity - the entity

findOne

public final <E extends BaseEntity> E findOne(String qlStatement,
 Object... qlArgs)

Finds one entity of the desired type.

Type Parameters:

E - specifies the desired entity type

Parameters:

qlStatement - a JPQL statement for finding a list of entities of which the first gets returned

qlArgs - zero or more arguments for positional parameters in the JPQL statement

Returns:

the first entity found, if any, or null if none

assertCreated

public final void assertCreated(BaseEntity newEntity,
 String qlStatement,
 Object... qlArgs)

Verifies that a given entity was properly inserted into the database, including the generation of its integer identifier.

Parameters:

newEntity - an entity just persisted

qlStatement - a JPQL statement for finding a set of entities which must contain the new entity

qlArgs - zero or more arguments for positional parameters in the JPQL statement

Throws:

AssertionError - if the new entity has a null or negative id, or if it is not among the entities found by executing the given JPQL statement