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Which statement about @TestPropertySource annotation is true? (Choose the best answer.)
Which two are required to use transactions in Spring? (Choose two.)
Transactions are units of work that ensure data consistency and integrity by enforcing atomicity, consistency, isolation, and durability (ACID) properties. Spring provides an abstraction layer for transaction management that supports various transaction APIs such as JDBC, JPA, Hibernate, etc. To use transactions in Spring, we need to do two things:
Declare transactional boundaries by annotating a class, an interface, or individual methods with the @Transactional annotation. This annotation indicates that the execution of the annotated element should be wrapped in a transaction.
Refer to the exhibit.
AppConfig is a Java configuration class. Which two statements are true? (Choose two.)
Which option is true about use of mocks in a Spring Boot web slice test? (Choose the best answer.)
A web slice test is a type of test in Spring Boot that focuses on testing only the web layer of an application, without starting a full server or requiring a real database. To isolate the web layer from other dependencies, such as services or repositories, mocks can be used to simulate their behavior and return predefined responses. To create and inject a mock for an existing bean in the application context, the @MockBean annotation can be used on a field or a parameter in the test class. This annotation will replace any existing bean of the same type with a mock created by Mockito.
