This commit introduces a new feature in the Spring TestContext
Framework (TCF) that provides support for recording application events
published in the ApplicationContext so that assertions can be performed
against those events within tests. All events published during the
execution of a single test are made available via the ApplicationEvents
API which allows one to process the events as a java.util.Stream.
The following example demonstrates usage of this new feature.
@SpringJUnitConfig(/* ... */)
@RecordApplicationEvents
class OrderServiceTests {
@Autowired
OrderService orderService;
@Autowired
ApplicationEvents events;
@Test
void submitOrder() {
// Invoke method in OrderService that publishes an event
orderService.submitOrder(new Order(/* ... */));
// Verify that an OrderSubmitted event was published
int numEvents = events.stream(OrderSubmitted.class).count();
assertThat(numEvents).isEqualTo(1);
}
}
To enable the feature, a test class must be annotated or meta-annotated
with @RecordApplicationEvents. Behind the scenes, a new
ApplicationEventsTestExecutionListener manages the registration of
ApplicationEvents for the current thread at various points within the
test execution lifecycle and makes the current instance of
ApplicationEvents available to tests via an @Autowired field in the
test class. The latter is made possible by a custom ObjectFactory that
is registered as a "resolvable dependency". Thanks to the magic of
ObjectFactoryDelegatingInvocationHandler in the spring-beans module,
the ApplicationEvents instance injected into test classes is
effectively a scoped-proxy that always accesses the ApplicationEvents
managed for the current test.
The current ApplicationEvents instance is stored in a ThreadLocal
variable which is made available in the ApplicationEventsHolder.
Although this class is public, it is only intended for use within the
TCF or in the implementation of third-party extensions.
ApplicationEventsApplicationListener is responsible for listening to
all application events and recording them in the current
ApplicationEvents instance. A single
ApplicationEventsApplicationListener is registered with the test's
ApplicationContext by the ApplicationEventsTestExecutionListener.
The SpringExtension has also been updated to support parameters of type
ApplicationEvents via the JUnit Jupiter ParameterResolver extension
API. This allows JUnit Jupiter based tests to receive access to the
current ApplicationEvents via test and lifecycle method parameters as
an alternative to @Autowired fields in the test class.
Closes gh-25616
This commit introduces computeAttribute() as an interface default method
in the AttributeAccessor API. This serves as a convenience analogous to
the computeIfAbsent() method in java.util.Map.
Closes gh-26281
gh-19930 introduced support for finding class-level test configuration
annotations on enclosing classes when using JUnit Jupiter @Nested test
classes, but support for @DynamicPropertySource methods got overlooked
since they are method-level annotations.
This commit addresses this shortcoming by introducing full support for
@NestedTestConfiguration semantics for @DynamicPropertySource methods
on enclosing classes.
Closes gh-26091
Prior to this commit, the test("test") conditions used in
AutowiredConfigurationErrorsIntegrationTests inadvertently asserted
that the invoked test methods reside in an org.springframework.test
subpackage, which is always the case for any test method in the
`spring-test` module. In other words, "test" is always a substring of
"org.springframework.test...", which is not a meaningful assertion.
This commit ensures that the JUnit Platform Test Kit is asserting the
actual names of test methods.
This commit introduces `and()` default methods in the MethodFilter and
FieldFilter functional interfaces in ReflectionUtils in order to simplify
uses cases that need to compose filter logic.
Closes gh-26063
Prior to this commit, a developer may have accidentally annotated a
JUnit Jupiter test method or lifecycle method with @Autowired, and that
would have potentially resulted in an exception that was hard to
understand. This is because the Spring container considers any
@Autowired method to be a "configuration method" when autowiring the
test class instance. Consequently, such an @Autowired method would be
invoked twice: once by Spring while attempting to autowire the test
instance and another time by JUnit Jupiter when invoking the test or
lifecycle method. The autowiring invocation of the method often leads
to an exception, either because Spring cannot satisfy a dependency (such
as JUnit Jupiter's TestInfo) or because the body of the method fails due
to test setup that has not yet been invoked.
This commit introduces validation for @Autowired test and lifecycle
methods in the SpringExtension that will throw an IllegalStateException
if any @Autowired method in a test class is also annotated with any of
the following JUnit Jupiter annotations.
- @Test
- @TestFactory
- @TestTemplate
- @RepeatedTest
- @ParameterizedTest
- @BeforeAll
- @AfterAll
- @BeforeEach
- @AfterEach
Closes gh-25966
Prior to this commit, the findAllLocalMergedAnnotations() method in
AnnotationDescriptor altered between the use of TYPE_HIERARCHY and
TYPE_HIERARCHY_AND_ENCLOSING_CLASSES for the SearchStrategy, depending
on @NestedTestConfiguration semantics; however, when searching for
"local" annotations, there is no need to search the enclosing class
hierarchy since AnnotationDescriptor#next() handles that use case.
This commit therefore switches to using only the TYPE_HIERARCHY
strategy.
This commit also discontinues the use of
MergedAnnotationCollectors.toAnnotationSet() in order to avoid the
unnecessary creation of a temporary List when collecting synthesized
annotations in a LinkedHashSet.
Closes gh-25985
With this commit, bean definition profiles declared via @ActiveProfiles
are once again stored in registration order, in order to support use
cases in Spring Boot and other frameworks that depend on the
registration order.
This effectively reverts the changes made in conjunction with gh-25973.
Closes gh-26004
Previous incarnation of MockMvc Kotlin DSL tried to reuse directly
Java APIs like ModelResultMatchers or StatusResultMatchers, but
when using multiple matchers in DSL blocks like model { } or
status { }, only the last statement was taken in account which
was very confusing.
This refactoring provides dedicated Kotlin DSLs for matchers.
The main API breaking changes is that functions like isOk() need to be
invoked with the parenthesis, isOk is not supported anymore (on purpose).
Closes gh-24103
Prior to this commit, if a developer accidentally copied and pasted the
same @ContextConfiguration or @TestPropertySource declaration from a
test class to one of its subclasses or nested test classes, the Spring
TestContext Framework (TCF) would merge the inherited configuration
with the local configuration, resulting in different sets of
configuration metadata which in turn resulted in a different
ApplicationContext instance being loaded for the test classes. This
behavior led to unnecessary creation of identical application contexts
in the context cache for the TCF stored under different keys.
This commit ignores duplicate configuration metadata when generating
the ApplicationContext cache key (i.e., MergedContextConfiguration) in
the TCF. This is performed for the following annotations.
- @ContextConfiguration
- @ActiveProfiles (support already existed prior to this commit)
- @TestPropertySource
Specifically, if @ContextConfiguration or @TestPropertySource is
declared on a test class and its subclass or nested test class with the
exact same attributes, only one instance of the annotation will be used
to generate the cache key for the resulting ApplicationContext. The
exception to this rule is an "empty" annotation declaration. An empty
@ContextConfiguration or @TestPropertySource declaration signals that
Spring (or a third-party SmartContextLoader) should detect default
configuration specific to the annotated class. Thus, multiple empty
@ContextConfiguration or @TestPropertySource declarations within a test
class hierarchy are not considered to be duplicate configuration and
are therefore not ignored.
Since @TestPropertySource is a @Repeatable annotation, the same
duplicate configuration detection logic is applied for multiple
@TestPropertySource declarations on a single test class or test
interface.
In addition, this commit reinstates validation of the rules for
repeated @TestPropertySource annotations that was removed when support
for @NestedTestConfiguration was introduced.
Closes gh-25800
The migration from JUnit 4 assertions to AssertJ assertions resulted in
several unnecessary casts from int to long that actually cause
assertions to pass when they should otherwise fail.
This commit fixes all such bugs for the pattern `.isNotEqualTo((long)`.
Prior to this commit, two @ActiveProfiles declarations with the same
profiles but different order resulted in an identical, duplicate
ApplicationContext in the context cache in the Spring TestContext
Framework.
This commit uses a TreeSet to ensure that registered active profiles
are both unique and sorted, thereby avoiding cache misses for
semantically identical active profiles configuration on different test
classes.
Closes gh-25973
This commit introduces TestContextAnnotationUtils as a replacement for
MetaAnnotationUtils, with dedicated support for honoring the new
@NestedTestConfiguration annotation and related annotation search
semantics.
MetaAnnotationUtils has been reverted to its previous scope and is now
deprecated.
See gh-19930
This commit introduces support for discovering @Sql, @SqlGroup,
@SqlConfig, and @SqlMergeMode on enclosing classes for @Nested test
classes in JUnit Jupiter.
Closes gh-25913
Prior to this commit only Propagation.NOT_SUPPORTED was supported for
disabling test-managed transactions via the `propagation` attribute of
`@Transactional`.
This commit allows users to specify Propagation.NOT_SUPPORTED or
Propagation.NEVER to disable test-managed transactions.
Closes gh-25909
Prior to this commit, the EnclosingConfiguration mode used in
conjunction with @NestedTestConfiguration defaulted to INHERIT.
In other to allow development teams to change the default to OVERRIDE
(e.g., for compatibility with Spring Framework 5.0 through 5.2), this
commit introduces support for changing the default EnclosingConfiguration
mode globally via a JVM system property or via the SpringProperties
mechanism.
For example, the default may be changed to
EnclosingConfiguration.OVERRIDE by supplying the following JVM system
property via the command line.
-Dspring.test.enclosing.configuration=override
Closes gh-19930
Sam Brannen
Juergen Hoeller
Rossen Stoyanchev
Sébastien Deleuze