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/*
* Copyright 2002-2018 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.support;
import java.lang.reflect.Method;
import java.util.Map;
import java.util.concurrent.ConcurrentHashMap;
import org.springframework.context.ApplicationContext;
import org.springframework.context.ConfigurableApplicationContext;
import org.springframework.core.style.ToStringCreator;
import org.springframework.lang.Nullable;
import org.springframework.test.annotation.DirtiesContext.HierarchyMode;
import org.springframework.test.context.CacheAwareContextLoaderDelegate;
import org.springframework.test.context.MergedContextConfiguration;
import org.springframework.test.context.TestContext;
import org.springframework.util.Assert;
import org.springframework.util.StringUtils;
/**
* Default implementation of the {@link TestContext} interface.
*
* @author Sam Brannen
* @author Juergen Hoeller
* @author Rob Harrop
* @since 4.0
*/
public class DefaultTestContext implements TestContext {
private static final long serialVersionUID = -5827157174866681233L;
private final Map attributes = new ConcurrentHashMap<>(4);
private final CacheAwareContextLoaderDelegate cacheAwareContextLoaderDelegate;
private final MergedContextConfiguration mergedContextConfiguration;
private final Class testClass;
@Nullable
private volatile Object testInstance;
@Nullable
private volatile Method testMethod;
@Nullable
private volatile Throwable testException;
/**
* Copy constructor for creating a new {@code DefaultTestContext}
* based on the attributes and immutable state of the supplied context.
* Immutable state includes all arguments supplied to the
* {@linkplain #DefaultTestContext(Class, MergedContextConfiguration,
* CacheAwareContextLoaderDelegate) standard constructor}.
* @throws NullPointerException if the supplied {@code DefaultTestContext}
* is {@code null}
*/
public DefaultTestContext(DefaultTestContext testContext) {
this(testContext.testClass, testContext.mergedContextConfiguration,
testContext.cacheAwareContextLoaderDelegate);
this.attributes.putAll(testContext.attributes);
}
/**
* Construct a new {@code DefaultTestContext} from the supplied arguments.
* @param testClass the test class for this test context
* @param mergedContextConfiguration the merged application context
* configuration for this test context
* @param cacheAwareContextLoaderDelegate the delegate to use for loading
* and closing the application context for this test context
*/
public DefaultTestContext(Class testClass, MergedContextConfiguration mergedContextConfiguration,
CacheAwareContextLoaderDelegate cacheAwareContextLoaderDelegate) {
Assert.notNull(testClass, "Test Class must not be null");
Assert.notNull(mergedContextConfiguration, "MergedContextConfiguration must not be null");
Assert.notNull(cacheAwareContextLoaderDelegate, "CacheAwareContextLoaderDelegate must not be null");
this.testClass = testClass;
this.mergedContextConfiguration = mergedContextConfiguration;
this.cacheAwareContextLoaderDelegate = cacheAwareContextLoaderDelegate;
}
/**
* Get the {@linkplain ApplicationContext application context} for this
* test context.
*
The default implementation delegates to the {@link CacheAwareContextLoaderDelegate}
* that was supplied when this {@code TestContext} was constructed.
* @throws IllegalStateException if the context returned by the context
* loader delegate is not active (i.e., has been closed).
* @see CacheAwareContextLoaderDelegate#loadContext
*/
public ApplicationContext getApplicationContext() {
ApplicationContext context = this.cacheAwareContextLoaderDelegate.loadContext(this.mergedContextConfiguration);
if (context instanceof ConfigurableApplicationContext) {
@SuppressWarnings("resource")
ConfigurableApplicationContext cac = (ConfigurableApplicationContext) context;
Assert.state(cac.isActive(), () ->
"The ApplicationContext loaded for [" + this.mergedContextConfiguration +
"] is not active. This may be due to one of the following reasons: " +
"1) the context was closed programmatically by user code; " +
"2) the context was closed during parallel test execution either " +
"according to @DirtiesContext semantics or due to automatic eviction " +
"from the ContextCache due to a maximum cache size policy.");
}
return context;
}
/**
* Mark the {@linkplain ApplicationContext application context} associated
* with this test context as dirty (i.e., by removing it from the
* context cache and closing it).
*
The default implementation delegates to the {@link CacheAwareContextLoaderDelegate}
* that was supplied when this {@code TestContext} was constructed.
* @see CacheAwareContextLoaderDelegate#closeContext
*/
public void markApplicationContextDirty(@Nullable HierarchyMode hierarchyMode) {
this.cacheAwareContextLoaderDelegate.closeContext(this.mergedContextConfiguration, hierarchyMode);
}
public final Class getTestClass() {
return this.testClass;
}
public final Object getTestInstance() {
Object testInstance = this.testInstance;
Assert.state(testInstance != null, "No test instance");
return testInstance;
}
public final Method getTestMethod() {
Method testMethod = this.testMethod;
Assert.state(testMethod != null, "No test method");
return testMethod;
}
@Override
@Nullable
public final Throwable getTestException() {
return this.testException;
}
public void updateState(@Nullable Object testInstance, @Nullable Method testMethod, @Nullable Throwable testException) {
this.testInstance = testInstance;
this.testMethod = testMethod;
this.testException = testException;
}
@Override
public void setAttribute(String name, @Nullable Object value) {
Assert.notNull(name, "Name must not be null");
synchronized (this.attributes) {
if (value != null) {
this.attributes.put(name, value);
}
else {
this.attributes.remove(name);
}
}
}
@Override
@Nullable
public Object getAttribute(String name) {
Assert.notNull(name, "Name must not be null");
return this.attributes.get(name);
}
@Override
@Nullable
public Object removeAttribute(String name) {
Assert.notNull(name, "Name must not be null");
return this.attributes.remove(name);
}
@Override
public boolean hasAttribute(String name) {
Assert.notNull(name, "Name must not be null");
return this.attributes.containsKey(name);
}
@Override
public String[] attributeNames() {
synchronized (this.attributes) {
return StringUtils.toStringArray(this.attributes.keySet());
}
}
/**
* Provide a String representation of this test context's state.
*/
@Override
public String toString() {
return new ToStringCreator(this)
.append("testClass", this.testClass)
.append("testInstance", this.testInstance)
.append("testMethod", this.testMethod)
.append("testException", this.testException)
.append("mergedContextConfiguration", this.mergedContextConfiguration)
.append("attributes", this.attributes)
.toString();
}
}