Prior to this commit, @MockitoBean could only be declared on fields
within test classes, which prevented developers from being able to
easily reuse mock configuration across a test suite.
With this commit, @MockitoBean is now supported at the type level on
test classes, their superclasses, and interfaces implemented by those
classes. @MockitoBean is also supported on enclosing classes for
@Nested test classes, their superclasses, and interfaces implemented
by those classes, while honoring @NestedTestConfiguration semantics.
In addition, @MockitoBean:
- has a new `types` attribute that can be used to declare the type or
types to mock when @MockitoBean is declared at the type level
- can be declared as a repeatable annotation at the type level
- can be declared as a meta-annotation on a custom composed annotation
which can be reused across a test suite (see the @SharedMocks
example in the reference manual)
To support these new features, this commit also includes the following
changes.
- The `field` property in BeanOverrideHandler is now @Nullable.
- BeanOverrideProcessor has a new `default` createHandlers() method
which is invoked when a @BeanOverride annotation is found at the
type level.
- MockitoBeanOverrideProcessor implements the new createHandlers()
method.
- The internal findHandlers() method in BeanOverrideHandler has been
completely overhauled.
- The @MockitoBean and @MockitoSpyBean section of the reference
manual has been completely overhauled.
Closes gh-33925
Sam Brannen
9181cce65f