/
MockUtil.java
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/
MockUtil.java
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/*
* Copyright (c) 2007 Mockito contributors
* This program is made available under the terms of the MIT License.
*/
package org.mockito.internal.util;
import org.mockito.MockedConstruction;
import org.mockito.Mockito;
import org.mockito.exceptions.misusing.NotAMockException;
import org.mockito.internal.configuration.plugins.Plugins;
import org.mockito.internal.creation.settings.CreationSettings;
import org.mockito.internal.stubbing.InvocationContainerImpl;
import org.mockito.internal.util.reflection.LenientCopyTool;
import org.mockito.invocation.MockHandler;
import org.mockito.mock.MockCreationSettings;
import org.mockito.mock.MockName;
import org.mockito.plugins.MockMaker;
import org.mockito.plugins.MockMaker.TypeMockability;
import org.mockito.plugins.MockResolver;
import java.util.function.Function;
import static org.mockito.internal.handler.MockHandlerFactory.createMockHandler;
@SuppressWarnings("unchecked")
public class MockUtil {
private static final MockMaker mockMaker = Plugins.getMockMaker();
private MockUtil() {}
public static TypeMockability typeMockabilityOf(Class<?> type) {
return mockMaker.isTypeMockable(type);
}
public static <T> T createMock(MockCreationSettings<T> settings) {
MockHandler mockHandler = createMockHandler(settings);
Object spiedInstance = settings.getSpiedInstance();
T mock;
if (spiedInstance != null) {
mock =
mockMaker
.createSpy(settings, mockHandler, (T) spiedInstance)
.orElseGet(
() -> {
T instance = mockMaker.createMock(settings, mockHandler);
new LenientCopyTool().copyToMock(spiedInstance, instance);
return instance;
});
} else {
mock = mockMaker.createMock(settings, mockHandler);
}
return mock;
}
public static void resetMock(Object mock) {
MockHandler oldHandler = getMockHandler(mock);
MockCreationSettings settings = oldHandler.getMockSettings();
MockHandler newHandler = createMockHandler(settings);
mock = resolve(mock);
mockMaker.resetMock(mock, newHandler, settings);
}
public static MockHandler<?> getMockHandler(Object mock) {
if (mock == null) {
throw new NotAMockException("Argument should be a mock, but is null!");
}
mock = resolve(mock);
MockHandler handler = mockMaker.getHandler(mock);
if (handler != null) {
return handler;
} else {
throw new NotAMockException("Argument should be a mock, but is: " + mock.getClass());
}
}
public static InvocationContainerImpl getInvocationContainer(Object mock) {
return (InvocationContainerImpl) getMockHandler(mock).getInvocationContainer();
}
public static boolean isSpy(Object mock) {
return isMock(mock)
&& getMockSettings(mock).getDefaultAnswer() == Mockito.CALLS_REAL_METHODS;
}
public static boolean isMock(Object mock) {
// TODO SF (perf tweak) in our codebase we call mockMaker.getHandler() multiple times
// unnecessarily
// This is not ideal because getHandler() can be expensive (reflective calls inside mock
// maker)
// The frequent pattern in the codebase are separate calls to: 1) isMock(mock) then 2)
// getMockHandler(mock)
// We could replace it with using mockingDetails().isMock()
// Let's refactor the codebase and use new mockingDetails() in all relevant places.
// Potentially we could also move other methods to MockitoMock, some other candidates:
// getInvocationContainer, isSpy, etc.
// This also allows us to reuse our public API MockingDetails
if (mock == null) {
return false;
}
mock = resolve(mock);
return mockMaker.getHandler(mock) != null;
}
private static Object resolve(Object mock) {
if (mock instanceof Class<?>) { // static mocks are resolved by definition
return mock;
}
for (MockResolver mockResolver : Plugins.getMockResolvers()) {
mock = mockResolver.resolve(mock);
}
return mock;
}
public static MockName getMockName(Object mock) {
return getMockHandler(mock).getMockSettings().getMockName();
}
public static void maybeRedefineMockName(Object mock, String newName) {
MockName mockName = getMockName(mock);
// TODO SF hacky...
MockCreationSettings mockSettings = getMockHandler(mock).getMockSettings();
if (mockName.isDefault() && mockSettings instanceof CreationSettings) {
((CreationSettings) mockSettings).setMockName(new MockNameImpl(newName));
}
}
public static MockCreationSettings getMockSettings(Object mock) {
return getMockHandler(mock).getMockSettings();
}
public static <T> MockMaker.StaticMockControl<T> createStaticMock(
Class<T> type, MockCreationSettings<T> settings) {
MockHandler<T> handler = createMockHandler(settings);
return mockMaker.createStaticMock(type, settings, handler);
}
public static <T> MockMaker.ConstructionMockControl<T> createConstructionMock(
Class<T> type,
Function<MockedConstruction.Context, MockCreationSettings<T>> settingsFactory,
MockedConstruction.MockInitializer<T> mockInitializer) {
Function<MockedConstruction.Context, MockHandler<T>> handlerFactory =
context -> createMockHandler(settingsFactory.apply(context));
return mockMaker.createConstructionMock(
type, settingsFactory, handlerFactory, mockInitializer);
}
public static void clearAllCaches() {
mockMaker.clearAllCaches();
}
}