forked from mockito/mockito
/
DeferMockMakersClassLoadingTest.java
96 lines (84 loc) · 3.59 KB
/
DeferMockMakersClassLoadingTest.java
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/*
* Copyright (c) 2019 Mockito contributors
* This program is made available under the terms of the MIT License.
*/
package org.mockitointegration;
import static org.mockito.Mockito.withSettings;
import static org.mockitoutil.ClassLoaders.coverageTool;
import java.lang.reflect.Method;
import org.assertj.core.api.Assertions;
import org.hamcrest.Matcher;
import org.junit.Test;
import org.mockito.Mockito;
import org.mockito.internal.creation.bytebuddy.ByteBuddyMockMaker;
import org.mockito.internal.creation.bytebuddy.InlineByteBuddyMockMaker;
import org.mockito.internal.creation.bytebuddy.SubclassByteBuddyMockMaker;
import org.mockito.internal.creation.proxy.ProxyMockMaker;
import org.mockito.invocation.MockHandler;
import org.mockito.mock.MockCreationSettings;
import org.mockito.plugins.MockMaker;
import org.mockitoutil.ClassLoaders;
public class DeferMockMakersClassLoadingTest {
private static final Object MY_MOCK = new Object();
@Test
public void mockito_should_not_load_mock_makers_it_does_not_need() throws Exception {
ClassLoader classLoader_without_mockMakers =
ClassLoaders.excludingClassLoader()
.withCodeSourceUrlOf(
Mockito.class,
Matcher.class,
CustomMockMaker.class,
Assertions.class)
.withCodeSourceUrlOf(coverageTool())
.without(
ByteBuddyMockMaker.class.getName(),
SubclassByteBuddyMockMaker.class.getName(),
InlineByteBuddyMockMaker.class.getName(),
ProxyMockMaker.class.getName())
.build();
ClassLoader contextClassLoader = Thread.currentThread().getContextClassLoader();
Thread.currentThread().setContextClassLoader(classLoader_without_mockMakers);
try {
Class<?> self = classLoader_without_mockMakers.loadClass(getClass().getName());
Method createMock = self.getMethod("createMock");
createMock.invoke(null);
} finally {
Thread.currentThread().setContextClassLoader(contextClassLoader);
}
}
// Called by reflection from the test method
public static void createMock() {
Assertions.assertThat(
Mockito.mock(
Object.class,
withSettings().mockMaker(CustomMockMaker.class.getName())))
.isSameAs(MY_MOCK);
}
public static class CustomMockMaker implements MockMaker {
@Override
public <T> T createMock(MockCreationSettings<T> settings, MockHandler handler) {
return settings.getTypeToMock().cast(MY_MOCK);
}
@Override
public MockHandler getHandler(Object mock) {
throw new UnsupportedOperationException();
}
@Override
public void resetMock(Object mock, MockHandler newHandler, MockCreationSettings settings) {
throw new UnsupportedOperationException();
}
@Override
public TypeMockability isTypeMockable(Class<?> type) {
return new TypeMockability() {
@Override
public boolean mockable() {
return type.equals(Object.class);
}
@Override
public String nonMockableReason() {
return mockable() ? "" : "type != Object.class";
}
};
}
}
}