Commits on Mar 7, 2013

1. Provide support for context hierarchies in the TCF …

   Prior to this commit the Spring TestContext Framework supported creating
   only flat, non-hierarchical contexts. There was no easy way to create
   contexts with parent-child relationships.
   
   This commit addresses this issue by introducing a new @ContextHierarchy
   annotation that can be used in conjunction with @ContextConfiguration
   for declaring hierarchies of application contexts, either within a
   single test class or within a test class hierarchy. In addition,
   @DirtiesContext now supports a new 'hierarchyMode' attribute for
   controlling context cache clearing for context hierarchies.
   
   - Introduced a new @ContextHierarchy annotation.
   - Introduced 'name' attribute in @ContextConfiguration.
   - Introduced 'name' property in ContextConfigurationAttributes.
   - TestContext is now aware of @ContextHierarchy in addition to
     @ContextConfiguration.
   - Introduced findAnnotationDeclaringClassForTypes() in AnnotationUtils.
   - Introduced resolveContextHierarchyAttributes() in ContextLoaderUtils.
   - Introduced buildContextHierarchyMap() in ContextLoaderUtils.
   - @ContextConfiguration and @ContextHierarchy may not be used as
     top-level, class-level annotations simultaneously.
   - Introduced reference to the parent configuration in
     MergedContextConfiguration and WebMergedContextConfiguration.
   - Introduced overloaded buildMergedContextConfiguration() methods in
     ContextLoaderUtils in order to handle context hierarchies separately
     from conventional, non-hierarchical contexts.
   - Introduced hashCode() and equals() in ContextConfigurationAttributes.
   - ContextLoaderUtils ensures uniqueness of @ContextConfiguration
     elements within a single @ContextHierarchy declaration.
   - Introduced CacheAwareContextLoaderDelegate that can be used for
     loading contexts with transparent support for interacting with the
     context cache -- for example, for retrieving the parent application
     context in a context hierarchy.
   - TestContext now delegates to CacheAwareContextLoaderDelegate for
     loading contexts.
   - Introduced getParentApplicationContext() in MergedContextConfiguration
   - The loadContext(MergedContextConfiguration) methods in
     AbstractGenericContextLoader and AbstractGenericWebContextLoader now
     set the parent context as appropriate.
   - Introduced 'hierarchyMode' attribute in @DirtiesContext with a
     corresponding HierarchyMode enum that defines EXHAUSTIVE and
     CURRENT_LEVEL cache removal modes.
   - ContextCache now internally tracks the relationships between contexts
     that make up a context hierarchy. Furthermore, when a context is
     removed, if it is part of a context hierarchy all corresponding
     contexts will be removed from the cache according to the supplied
     HierarchyMode.
   - AbstractGenericWebContextLoader will set a loaded context as the
     ROOT_WEB_APPLICATION_CONTEXT_ATTRIBUTE in the MockServletContext when
     context hierarchies are used if the context has no parent or if the
     context has a parent that is not a WAC.
   - Where appropriate, updated Javadoc to refer to the
     ServletTestExecutionListener, which was introduced in 3.2.0.
   - Updated Javadoc to avoid and/or suppress warnings in spring-test.
   - Suppressed remaining warnings in code in spring-test.
   
   Issue: SPR-5613, SPR-9863

   

   sbrannen committed Mar 7, 2013
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