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Overhaul TestExecutionListener for Micrometer ObservationRegistry 

This commit overhauls the TestExecutionListener for Micrometer's
ObservationRegistry that was introduced in the previous commit.

Specifically, this commit:

- Renames the listener to MicrometerObservationRegistryTestExecutionListener
  since the use of a ThreadLocal is an implementation detail that may
  change over time.

- Makes the listener package-private instead of public in order to
  allow the team greater flexibility in evolving this feature.

- Eagerly loads the ObservationThreadLocalAccessor class and verifies
  that it has a getObservationRegistry() method to ensure that the
  listener is properly skipped when SpringFactoriesLoader attempts to
  load it, if Micrometer 1.10.8+ is not on the classpath.

- Switches the listener's automatic registration order to 2500 in order
  to register it after the DependencyInjectionTestExecutionListener.

- Only tracks the previous ObservationRegistry in beforeTestMethod() if
  the test's ApplicationContext contains an ObservationRegistry bean.

- Properly removes the TestContext attribute for the previous
  ObservationRegistry in afterTestMethod().

- Introduces DEBUG logging for diagnostics.

- Adds an entry in the Javadoc for TestExecutionListener as well as in
  the Testing chapter in the reference manual.

Closes gh-30658
This commit is contained in:
Sam Brannen 2023-06-14 13:02:52 +02:00
parent a82659c837
commit aa2028127f
9 changed files with 268 additions and 187 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
framework-docs/modules/ROOT/pages/testing/testcontext-framework/tel-config.adoc
View File

@ -12,6 +12,8 @@ by default, exactly in the following order:
xref:testing/testcontext-framework/application-events.adoc[`ApplicationEvents`].
* `DependencyInjectionTestExecutionListener`: Provides dependency injection for the test
instance.
* `MicrometerObservationRegistryTestExecutionListener`: Provides support for
Micrometer's `ObservationRegistry`.
* `DirtiesContextTestExecutionListener`: Handles the `@DirtiesContext` annotation for
"`after`" modes.
* `TransactionalTestExecutionListener`: Provides transactional test execution with

2
spring-test/src/main/java/org/springframework/test/context/TestExecutionListener.java
View File

@ -68,6 +68,8 @@ package org.springframework.test.context;
* ApplicationEventsTestExecutionListener}</li>
* <li>{@link org.springframework.test.context.support.DependencyInjectionTestExecutionListener
* DependencyInjectionTestExecutionListener}</li>
* <li>{@link org.springframework.test.context.observation.MicrometerObservationRegistryTestExecutionListener
* MicrometerObservationRegistryTestExecutionListener}</li>
* <li>{@link org.springframework.test.context.support.DirtiesContextTestExecutionListener
* DirtiesContextTestExecutionListener}</li>
* <li>{@link org.springframework.test.context.transaction.TransactionalTestExecutionListener

142
spring-test/src/main/java/org/springframework/test/context/observation/MicrometerObservationRegistryTestExecutionListener.java Normal file
View File

@ -0,0 +1,142 @@
/*
* Copyright 2002-2023 the original author or authors.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* https://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.springframework.test.context.observation;
import java.lang.reflect.Method;
import io.micrometer.observation.ObservationRegistry;
import io.micrometer.observation.contextpropagation.ObservationThreadLocalAccessor;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.junit.platform.launcher.TestExecutionListener;
import org.springframework.context.ApplicationContext;
import org.springframework.core.Conventions;
import org.springframework.test.context.TestContext;
import org.springframework.test.context.support.AbstractTestExecutionListener;
import org.springframework.util.Assert;
import org.springframework.util.ReflectionUtils;
/**
* {@code TestExecutionListener} which provides support for Micrometer's
* {@link ObservationRegistry}.
*
* <p>This listener updates the {@link ObservationThreadLocalAccessor} with the
* {@code ObservationRegistry} obtained from the test's {@link ApplicationContext},
* if present.
*
* @author Marcin Grzejszczak
* @author Sam Brannen
* @since 6.0.10
*/
class MicrometerObservationRegistryTestExecutionListener extends AbstractTestExecutionListener {
private static final Log logger = LogFactory.getLog(MicrometerObservationRegistryTestExecutionListener.class);
private static final String OBSERVATION_THREAD_LOCAL_ACCESSOR_CLASS_NAME =
"io.micrometer.observation.contextpropagation.ObservationThreadLocalAccessor";
/**
* Attribute name for a {@link TestContext} attribute which contains the
* {@link ObservationRegistry} that was previously stored in the
* {@link ObservationThreadLocalAccessor}.
* <p>After each test method, the previously stored {@code ObservationRegistry}
* will be restored. If tests run concurrently this might cause issues unless
* the {@code ObservationRegistry} is always the same (which should typically
* be the case).
*/
private static final String PREVIOUS_OBSERVATION_REGISTRY = Conventions.getQualifiedAttributeName(
MicrometerObservationRegistryTestExecutionListener.class, "previousObservationRegistry");
static {
// Trigger eager resolution of Micrometer Observation types during static
// initialization of this class to ensure that this listener can be properly
// skipped when SpringFactoriesLoader attempts to load it, if micrometer-observation
// is not in the classpath or if the version of ObservationThreadLocalAccessor
// present does not include the getObservationRegistry() method.
String errorMessage =
"MicrometerObservationRegistryTestExecutionListener requires micrometer-observation 1.10.8 or higher";
Class<?> clazz;
try {
clazz = Class.forName(OBSERVATION_THREAD_LOCAL_ACCESSOR_CLASS_NAME, true,
TestExecutionListener.class.getClassLoader());
}
catch (Throwable ex) {
throw new IllegalStateException(errorMessage, ex);
}
Method method = ReflectionUtils.findMethod(clazz, "getObservationRegistry");
Assert.state(method != null, errorMessage);
}
/**
* Returns {@code 2500}.
*/
@Override
public final int getOrder() {
return 2500;
}
/**
* If the test's {@link ApplicationContext} contains an {@link ObservationRegistry}
* bean, this method retrieves the {@code ObservationRegistry} currently stored
* in {@link ObservationThreadLocalAccessor}, saves a reference to the original
* registry as a {@link TestContext} attribute (to be restored in
* {@link #afterTestMethod(TestContext)}), and sets the registry from the test's
* {@code ApplicationContext} in {@link ObservationThreadLocalAccessor}.
* @param testContext the test context for the test; never {@code null}
* @see #afterTestMethod(TestContext)
*/
@Override
public void beforeTestMethod(TestContext testContext) {
testContext.getApplicationContext().getBeanProvider(ObservationRegistry.class)
.ifAvailable(registry -> {
if (logger.isDebugEnabled()) {
logger.debug("""
Registering ObservationRegistry from ApplicationContext in \
ObservationThreadLocalAccessor for test class \
""" + testContext.getTestClass().getName());
}
ObservationThreadLocalAccessor accessor = ObservationThreadLocalAccessor.getInstance();
testContext.setAttribute(PREVIOUS_OBSERVATION_REGISTRY, accessor.getObservationRegistry());
accessor.setObservationRegistry(registry);
});
}
/**
* Retrieves the original {@link ObservationRegistry} that was saved in
* {@link #beforeTestMethod(TestContext)} and sets it in
* {@link ObservationThreadLocalAccessor}.
* @param testContext the test context for the test; never {@code null}
* @see #beforeTestMethod(TestContext)
*/
@Override
public void afterTestMethod(TestContext testContext) {
ObservationRegistry previousObservationRegistry =
(ObservationRegistry) testContext.removeAttribute(PREVIOUS_OBSERVATION_REGISTRY);
if (previousObservationRegistry != null) {
if (logger.isDebugEnabled()) {
logger.debug("Restoring ObservationRegistry in ObservationThreadLocalAccessor for test class " +
testContext.getTestClass().getName());
}
ObservationThreadLocalAccessor.getInstance().setObservationRegistry(previousObservationRegistry);
}
}
}

92
spring-test/src/main/java/org/springframework/test/context/observation/MicrometerObservationThreadLocalTestExecutionListener.java
View File

@ -1,92 +0,0 @@
/*
* Copyright 2002-2023 the original author or authors.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* https://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.springframework.test.context.observation;
import io.micrometer.observation.ObservationRegistry;
import io.micrometer.observation.contextpropagation.ObservationThreadLocalAccessor;
import org.springframework.context.ApplicationContext;
import org.springframework.core.Conventions;
import org.springframework.test.context.TestContext;
import org.springframework.test.context.TestExecutionListener;
import org.springframework.test.context.support.AbstractTestExecutionListener;
/**
* {@code ObservationThreadLocalTestExecutionListener} is an implementation of the {@link TestExecutionListener}
* SPI that updates the {@link ObservationThreadLocalAccessor} with the {@link ObservationRegistry}
* taken from the {@link ApplicationContext} present in the {@link TestContext}.
*
* <p>This implementation is not thread-safe.
*
* @author Marcin Grzejszczak
* @since 6.1
*/
public class MicrometerObservationThreadLocalTestExecutionListener extends AbstractTestExecutionListener {
/**
* Attribute name for a {@link TestContext} attribute which contains the previously
* set {@link ObservationRegistry} on the {@link ObservationThreadLocalAccessor}.
* <p>After all tests from the current test class have completed, the previously stored {@link ObservationRegistry}
* will be restored. If tests are ran concurrently this might cause issues
* unless the {@link ObservationRegistry} is always the same (which should be the case most frequently).
*/
private static final String PREVIOUS_OBSERVATION_REGISTRY = Conventions.getQualifiedAttributeName(
MicrometerObservationThreadLocalTestExecutionListener.class, "previousObservationRegistry");
/**
* Retrieves the current {@link ObservationRegistry} stored
* on {@link ObservationThreadLocalAccessor} instance and stores it
* in the {@link TestContext} attributes and overrides it with
* one stored in {@link ApplicationContext} associated with
* the {@link TestContext}.
* @param testContext the test context for the test; never {@code null}
*/
@Override
public void beforeTestMethod(TestContext testContext) {
testContext.setAttribute(PREVIOUS_OBSERVATION_REGISTRY,
ObservationThreadLocalAccessor.getInstance().getObservationRegistry());
testContext.getApplicationContext()
.getBeanProvider(ObservationRegistry.class)
.ifAvailable(observationRegistry ->
ObservationThreadLocalAccessor.getInstance()
.setObservationRegistry(observationRegistry));
}
/**
* Retrieves the previously stored {@link ObservationRegistry} and sets it back
* on the {@link ObservationThreadLocalAccessor} instance.
* @param testContext the test context for the test; never {@code null}
*/
@Override
public void afterTestMethod(TestContext testContext) {
ObservationRegistry previousObservationRegistry =
(ObservationRegistry) testContext.getAttribute(PREVIOUS_OBSERVATION_REGISTRY);
if (previousObservationRegistry != null) {
ObservationThreadLocalAccessor.getInstance()
.setObservationRegistry(previousObservationRegistry);
}
}
/**
* Returns {@code 3500}.
*/
@Override
public final int getOrder() {
return 3500;
}
}

4
spring-test/src/main/resources/META-INF/spring.factories
View File

@ -5,11 +5,11 @@ org.springframework.test.context.TestExecutionListener = \
org.springframework.test.context.support.DirtiesContextBeforeModesTestExecutionListener,\
org.springframework.test.context.event.ApplicationEventsTestExecutionListener,\
org.springframework.test.context.support.DependencyInjectionTestExecutionListener,\
org.springframework.test.context.observation.MicrometerObservationRegistryTestExecutionListener,\
org.springframework.test.context.support.DirtiesContextTestExecutionListener,\
org.springframework.test.context.transaction.TransactionalTestExecutionListener,\
org.springframework.test.context.jdbc.SqlScriptsTestExecutionListener,\
org.springframework.test.context.event.EventPublishingTestExecutionListener,\
org.springframework.test.context.observation.MicrometerObservationThreadLocalTestExecutionListener
org.springframework.test.context.event.EventPublishingTestExecutionListener
# Default ContextCustomizerFactory implementations for the Spring TestContext Framework
#

21
spring-test/src/test/java/org/springframework/test/context/TestExecutionListenersTests.java
View File

@ -1,5 +1,5 @@
/*
* Copyright 2002-2022 the original author or authors.
* Copyright 2002-2023 the original author or authors.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
@ -28,13 +28,13 @@ import org.springframework.core.annotation.AnnotationConfigurationException;
import org.springframework.test.context.event.ApplicationEventsTestExecutionListener;
import org.springframework.test.context.event.EventPublishingTestExecutionListener;
import org.springframework.test.context.jdbc.SqlScriptsTestExecutionListener;
import org.springframework.test.context.observation.MicrometerObservationThreadLocalTestExecutionListener;
import org.springframework.test.context.support.AbstractTestExecutionListener;
import org.springframework.test.context.support.DependencyInjectionTestExecutionListener;
import org.springframework.test.context.support.DirtiesContextBeforeModesTestExecutionListener;
import org.springframework.test.context.support.DirtiesContextTestExecutionListener;
import org.springframework.test.context.transaction.TransactionalTestExecutionListener;
import org.springframework.test.context.web.ServletTestExecutionListener;
import org.springframework.util.ClassUtils;
import static java.util.Arrays.asList;
import static java.util.stream.Collectors.toList;
@ -57,14 +57,17 @@ import static org.springframework.test.context.TestExecutionListeners.MergeMode.
*/
class TestExecutionListenersTests {
private static final Class<?> micrometerListenerClass =
ClassUtils.resolveClassName("org.springframework.test.context.observation.MicrometerObservationRegistryTestExecutionListener", null);
@Test
void defaultListeners() {
List<Class<?>> expected = asList(ServletTestExecutionListener.class,//
DirtiesContextBeforeModesTestExecutionListener.class,//
ApplicationEventsTestExecutionListener.class,//
DependencyInjectionTestExecutionListener.class,//
micrometerListenerClass,//
DirtiesContextTestExecutionListener.class,//
MicrometerObservationThreadLocalTestExecutionListener.class,//
TransactionalTestExecutionListener.class,//
SqlScriptsTestExecutionListener.class,//
EventPublishingTestExecutionListener.class
@ -82,8 +85,8 @@ class TestExecutionListenersTests {
DirtiesContextBeforeModesTestExecutionListener.class,//
ApplicationEventsTestExecutionListener.class,//
DependencyInjectionTestExecutionListener.class,//
micrometerListenerClass,//
DirtiesContextTestExecutionListener.class,//
MicrometerObservationThreadLocalTestExecutionListener.class,//
TransactionalTestExecutionListener.class,//
SqlScriptsTestExecutionListener.class,//
EventPublishingTestExecutionListener.class
@ -100,8 +103,8 @@ class TestExecutionListenersTests {
DirtiesContextBeforeModesTestExecutionListener.class,//
ApplicationEventsTestExecutionListener.class,//
DependencyInjectionTestExecutionListener.class,//
micrometerListenerClass,//
DirtiesContextTestExecutionListener.class,//
MicrometerObservationThreadLocalTestExecutionListener.class,//
TransactionalTestExecutionListener.class,
SqlScriptsTestExecutionListener.class,//
EventPublishingTestExecutionListener.class,//
@ -120,8 +123,8 @@ class TestExecutionListenersTests {
ApplicationEventsTestExecutionListener.class,//
DependencyInjectionTestExecutionListener.class,//
BarTestExecutionListener.class,//
micrometerListenerClass,//
DirtiesContextTestExecutionListener.class,//
MicrometerObservationThreadLocalTestExecutionListener.class,//
TransactionalTestExecutionListener.class,//
SqlScriptsTestExecutionListener.class,//
EventPublishingTestExecutionListener.class
@ -366,9 +369,9 @@ class TestExecutionListenersTests {
@Override
public int getOrder() {
// 2500 is between DependencyInjectionTestExecutionListener (2000) and
// DirtiesContextTestExecutionListener (3000)
return 2500;
// 2250 is between DependencyInjectionTestExecutionListener (2000) and
// MicrometerObservationRegistryTestExecutionListener (2500)
return 2250;
}
}

107
spring-test/src/test/java/org/springframework/test/context/observation/MicrometerObservationRegistryTestExecutionListenerTests.java Normal file
View File

@ -0,0 +1,107 @@
/*
* Copyright 2002-2023 the original author or authors.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* https://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.springframework.test.context.observation;
import java.util.HashMap;
import java.util.Map;
import io.micrometer.observation.ObservationRegistry;
import io.micrometer.observation.contextpropagation.ObservationThreadLocalAccessor;
import org.junit.jupiter.api.BeforeEach;
import org.junit.jupiter.api.Test;
import org.springframework.context.support.StaticApplicationContext;
import org.springframework.test.context.TestContext;
import org.springframework.test.context.TestExecutionListener;
import static org.assertj.core.api.Assertions.assertThat;
import static org.mockito.ArgumentMatchers.any;
import static org.mockito.ArgumentMatchers.anyString;
import static org.mockito.BDDMockito.given;
import static org.mockito.BDDMockito.willAnswer;
import static org.mockito.Mockito.mock;
/**
* Unit tests for {@link MicrometerObservationRegistryTestExecutionListener}.
*
* @author Marcin Grzejszczak
* @author Sam Brannen
* @since 6.0.10
*/
class MicrometerObservationRegistryTestExecutionListenerTests {
private final ObservationRegistry originalObservationRegistry = globalObservationRegistry();
private final TestContext testContext = mock();
private final StaticApplicationContext applicationContext = new StaticApplicationContext();
private final Map<String, Object> attributes = new HashMap<>();
private final TestExecutionListener listener = new MicrometerObservationRegistryTestExecutionListener();
@BeforeEach
@SuppressWarnings({ "unchecked", "rawtypes" }) // for raw Class testClass
void configureTestContextMock() {
willAnswer(invocation -> attributes.put(invocation.getArgument(0), invocation.getArgument(1)))
.given(testContext).setAttribute(anyString(), any());
given(testContext.removeAttribute(anyString()))
.willAnswer(invocation -> attributes.get(invocation.getArgument(0, String.class)));
given(testContext.getApplicationContext()).willReturn(applicationContext);
Class testClass = getClass();
given(testContext.getTestClass()).willReturn(testClass);
}
@Test
void observationRegistryIsNotOverridden() throws Exception {
assertGlobalObservationRegistryIsSameAsOriginal();
listener.beforeTestMethod(testContext);
assertGlobalObservationRegistryIsSameAsOriginal();
listener.afterTestMethod(testContext);
assertGlobalObservationRegistryIsSameAsOriginal();
}
@Test
void observationRegistryIsOverriddenByBeanFromApplicationContext() throws Exception {
assertGlobalObservationRegistryIsSameAsOriginal();
ObservationRegistry testObservationRegistry = ObservationRegistry.create();
applicationContext.getDefaultListableBeanFactory().registerSingleton("observationRegistry", testObservationRegistry);
listener.beforeTestMethod(testContext);
ObservationRegistry globalObservationRegistry = globalObservationRegistry();
assertThat(globalObservationRegistry)
.as("The global ObservationRegistry should have been replaced with the one from the application context")
.isNotSameAs(originalObservationRegistry)
.isSameAs(testObservationRegistry);
listener.afterTestMethod(testContext);
assertGlobalObservationRegistryIsSameAsOriginal();
}
private void assertGlobalObservationRegistryIsSameAsOriginal() {
assertThat(globalObservationRegistry()).isSameAs(originalObservationRegistry);
}
private static ObservationRegistry globalObservationRegistry() {
return ObservationThreadLocalAccessor.getInstance().getObservationRegistry();
}
}

84
spring-test/src/test/java/org/springframework/test/context/observation/MicrometerObservationThreadLocalTestExecutionListenerTests.java
View File

@ -1,84 +0,0 @@
/*
* Copyright 2002-2023 the original author or authors.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* https://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.springframework.test.context.observation;
import java.util.HashMap;
import java.util.Map;
import io.micrometer.observation.ObservationRegistry;
import io.micrometer.observation.contextpropagation.ObservationThreadLocalAccessor;
import org.junit.jupiter.api.BeforeEach;
import org.junit.jupiter.api.Test;
import org.springframework.context.support.StaticApplicationContext;
import org.springframework.test.context.TestContext;
import static org.assertj.core.api.BDDAssertions.then;
import static org.mockito.ArgumentMatchers.any;
import static org.mockito.ArgumentMatchers.anyString;
import static org.mockito.BDDMockito.given;
import static org.mockito.BDDMockito.willAnswer;
import static org.mockito.Mockito.mock;
class MicrometerObservationThreadLocalTestExecutionListenerTests {
ObservationRegistry originalObservationRegistry = ObservationThreadLocalAccessor.getInstance().getObservationRegistry();
TestContext testContext = mock();
StaticApplicationContext applicationContext = new StaticApplicationContext();
Map<String, Object> attributes = new HashMap<>();
MicrometerObservationThreadLocalTestExecutionListener listener = new MicrometerObservationThreadLocalTestExecutionListener();
@BeforeEach
void setup() {
willAnswer(invocation -> attributes.put(invocation.getArgument(0), invocation.getArgument(1))).given(testContext).setAttribute(anyString(), any());
given(testContext.getAttribute(anyString())).willAnswer(invocation -> attributes.get(invocation.getArgument(0, String.class)));
given(testContext.getApplicationContext()).willReturn(applicationContext);
}
@Test
void observationRegistryShouldNotBeOverridden() throws Exception {
listener.beforeTestMethod(testContext);
thenObservationRegistryOnOTLAIsSameAsOriginal();
listener.afterTestMethod(testContext);
thenObservationRegistryOnOTLAIsSameAsOriginal();
}
@Test
void observationRegistryOverriddenByBeanFromTestContext() throws Exception {
ObservationRegistry newObservationRegistry = ObservationRegistry.create();
applicationContext.getDefaultListableBeanFactory().registerSingleton("observationRegistry", newObservationRegistry);
listener.beforeTestMethod(testContext);
ObservationRegistry otlaObservationRegistry = ObservationThreadLocalAccessor.getInstance().getObservationRegistry();
then(otlaObservationRegistry)
.as("During the test we want the original ObservationRegistry to be replaced with the one present in this application context")
.isNotSameAs(originalObservationRegistry)
.isSameAs(newObservationRegistry);
listener.afterTestMethod(testContext);
thenObservationRegistryOnOTLAIsSameAsOriginal();
}
private void thenObservationRegistryOnOTLAIsSameAsOriginal() {
then(ObservationThreadLocalAccessor.getInstance().getObservationRegistry()).isSameAs(originalObservationRegistry);
}
}

1
spring-test/src/test/resources/log4j2-test.xml
View File

@ -18,6 +18,7 @@
<Logger name="org.springframework.test.context.cache" level="warn" />
<Logger name="org.springframework.test.context.cache.DefaultCacheAwareContextLoaderDelegate" level="info" />
<Logger name="org.springframework.test.context.junit4.rules" level="warn" />
<Logger name="org.springframework.test.context.observation" level="warn" />
<Logger name="org.springframework.test.context.transaction.TransactionalTestExecutionListener" level="warn" />
<Logger name="org.springframework.test.context.web" level="warn" />
<!-- The following must be kept at DEBUG in order to test SPR-14363. -->