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SplitBrainMergePolicyProviderTest.java
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SplitBrainMergePolicyProviderTest.java
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/*
* Copyright (c) 2008-2021, Hazelcast, Inc. All Rights Reserved.
*
* 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
*
* http://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 com.hazelcast.spi.merge;
import com.hazelcast.config.InvalidConfigurationException;
import com.hazelcast.test.HazelcastParallelClassRunner;
import com.hazelcast.test.HazelcastTestSupport;
import com.hazelcast.test.annotation.ParallelJVMTest;
import com.hazelcast.test.annotation.QuickTest;
import org.hamcrest.core.IsInstanceOf;
import org.junit.Before;
import org.junit.Rule;
import org.junit.Test;
import org.junit.experimental.categories.Category;
import org.junit.rules.ExpectedException;
import org.junit.runner.RunWith;
import java.util.Set;
import static com.hazelcast.test.Accessors.getNode;
import static com.hazelcast.test.ReflectionsHelper.REFLECTIONS;
import static java.lang.reflect.Modifier.isAbstract;
import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertNotNull;
@RunWith(HazelcastParallelClassRunner.class)
@Category({QuickTest.class, ParallelJVMTest.class})
public class SplitBrainMergePolicyProviderTest extends HazelcastTestSupport {
private SplitBrainMergePolicyProvider mergePolicyProvider;
@Rule
public ExpectedException expected = ExpectedException.none();
@Before
public void setup() {
mergePolicyProvider = new SplitBrainMergePolicyProvider(getNode(createHazelcastInstance()).getConfigClassLoader());
}
@Test
public void getMergePolicy_withNotExistingMergePolicy() {
expected.expect(InvalidConfigurationException.class);
expected.expectCause(IsInstanceOf.any(ClassNotFoundException.class));
mergePolicyProvider.getMergePolicy("No such policy!");
}
@Test
public void getMergePolicy_withNullPolicy() {
expected.expect(InvalidConfigurationException.class);
mergePolicyProvider.getMergePolicy(null);
}
@Test
public void getMergePolicy_withAllImplementations() {
Set<Class<? extends SplitBrainMergePolicy>> mergePolicyClasses = REFLECTIONS.getSubTypesOf(SplitBrainMergePolicy.class);
for (Class<? extends SplitBrainMergePolicy> mergePolicyClass : mergePolicyClasses) {
if (isAbstract(mergePolicyClass.getModifiers())) {
continue;
}
assertMergePolicyCorrectlyInitialised(mergePolicyClass.getSimpleName(), mergePolicyClass);
assertMergePolicyCorrectlyInitialised(mergePolicyClass.getName(), mergePolicyClass);
}
}
private void assertMergePolicyCorrectlyInitialised(String mergePolicyName,
Class<? extends SplitBrainMergePolicy> expectedMergePolicyClass) {
SplitBrainMergePolicy mergePolicy = mergePolicyProvider.getMergePolicy(mergePolicyName);
assertNotNull(mergePolicy);
assertEquals(expectedMergePolicyClass, mergePolicy.getClass());
}
}