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MockitoLightweightExtension.java
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MockitoLightweightExtension.java
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/*
* Copyright (c) 2024 Mockito contributors
* This program is made available under the terms of the MIT License.
*/
package org.mockito.junit.jupiter;
import static org.junit.jupiter.api.extension.ExtensionContext.Namespace.create;
import java.lang.reflect.Field;
import java.util.HashSet;
import java.util.Set;
import org.junit.jupiter.api.extension.AfterEachCallback;
import org.junit.jupiter.api.extension.BeforeEachCallback;
import org.junit.jupiter.api.extension.ExtensionContext;
import org.mockito.Mockito;
import org.mockito.MockitoSession;
import org.mockito.ScopedMock;
import org.mockito.internal.configuration.plugins.Plugins;
import org.mockito.internal.creation.MockSettingsImpl;
import org.mockito.internal.framework.DefaultMockitoSession;
import org.mockito.internal.junit.UniversalTestListener;
import org.mockito.internal.session.MockitoSessionLoggerAdapter;
import org.mockito.internal.util.MockUtil;
import org.mockito.quality.Strictness;
public class MockitoLightweightExtension implements BeforeEachCallback, AfterEachCallback {
private static final ExtensionContext.Namespace MOCKITO = create("org.mockito");
private static final String SESSION = "session", MOCKS = "mocks";
@SuppressWarnings("rawtypes")
private static final MockSettingsImpl SETTING = new MockSettingsImpl();
private static final Field field;
static {
try {
field = DefaultMockitoSession.class.getDeclaredField("listener");
field.setAccessible(true);
} catch (Exception e) {
throw new RuntimeException(e);
}
}
@Override
public void beforeEach(final ExtensionContext context) throws Exception {
var session =
Mockito.mockitoSession()
.logger(new MockitoSessionLoggerAdapter(Plugins.getMockitoLogger()))
.strictness(Strictness.STRICT_STUBS)
.startMocking();
var listener = (UniversalTestListener) field.get(session);
for (var instance : context.getRequiredTestInstances().getAllInstances()) {
listen(instance, listener);
}
context.getStore(MOCKITO).put(MOCKS, new HashSet<>());
context.getStore(MOCKITO).put(SESSION, session);
}
@Override
@SuppressWarnings("unchecked")
public void afterEach(ExtensionContext context) {
context.getStore(MOCKITO)
.remove(MOCKS, Set.class)
.forEach(mock -> ((ScopedMock) mock).closeOnDemand());
context.getStore(MOCKITO)
.remove(SESSION, MockitoSession.class)
.finishMocking(context.getExecutionException().orElse(null));
}
private void listen(Object instance, UniversalTestListener listener)
throws IllegalAccessException {
for (var field : instance.getClass().getDeclaredFields()) {
field.setAccessible(true);
var maybeMock = field.get(instance);
if (MockUtil.isMock((maybeMock))) {
listener.onMockCreated(maybeMock, SETTING);
}
}
}
}