Merge branch '6.2.x'
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@@ -2,8 +2,8 @@
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= Bean Overriding in Tests
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Bean overriding in tests refers to the ability to override specific beans in the
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`ApplicationContext` for a test class, by annotating one or more non-static fields in the
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test class.
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`ApplicationContext` for a test class, by annotating the test class or one or more
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non-static fields in the test class.
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NOTE: This feature is intended as a less risky alternative to the practice of registering
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a bean via `@Bean` with the `DefaultListableBeanFactory`
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@@ -42,15 +42,16 @@ The `spring-test` module registers implementations of the latter two
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{spring-framework-code}/spring-test/src/main/resources/META-INF/spring.factories[`META-INF/spring.factories`
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properties file].
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The bean overriding infrastructure searches in test classes for any non-static field that
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is meta-annotated with `@BeanOverride` and instantiates the corresponding
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`BeanOverrideProcessor` which is responsible for creating an appropriate
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`BeanOverrideHandler`.
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The bean overriding infrastructure searches for annotations on test classes as well as
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annotations on non-static fields in test classes that are meta-annotated with
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`@BeanOverride` and instantiates the corresponding `BeanOverrideProcessor` which is
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responsible for creating an appropriate `BeanOverrideHandler`.
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The internal `BeanOverrideBeanFactoryPostProcessor` then uses bean override handlers to
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alter the test's `ApplicationContext` by creating, replacing, or wrapping beans as
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defined by the corresponding `BeanOverrideStrategy`:
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[[testcontext-bean-overriding-strategy]]
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`REPLACE`::
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Replaces the bean. Throws an exception if a corresponding bean does not exist.
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`REPLACE_OR_CREATE`::
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