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DefaultExponentialBackOffConfigTest.java
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DefaultExponentialBackOffConfigTest.java
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/*
* Copyright (c) 2019 Contributors to the Eclipse Foundation
*
* See the NOTICE file(s) distributed with this work for additional
* information regarding copyright ownership.
*
* This program and the accompanying materials are made available under the
* terms of the Eclipse Public License 2.0 which is available at
* http://www.eclipse.org/legal/epl-2.0
*
* SPDX-License-Identifier: EPL-2.0
*/
package org.eclipse.ditto.base.service.config.supervision;
import static org.mutabilitydetector.unittesting.MutabilityAssert.assertInstancesOf;
import static org.mutabilitydetector.unittesting.MutabilityMatchers.areImmutable;
import java.time.Duration;
import org.assertj.core.api.JUnitSoftAssertions;
import org.junit.BeforeClass;
import org.junit.Rule;
import org.junit.Test;
import com.typesafe.config.Config;
import com.typesafe.config.ConfigFactory;
import nl.jqno.equalsverifier.EqualsVerifier;
/**
* Unit test for {@link DefaultExponentialBackOffConfig}.
*/
public final class DefaultExponentialBackOffConfigTest {
private static Config exponentialBackOffTestConf;
@Rule
public final JUnitSoftAssertions softly = new JUnitSoftAssertions();
@BeforeClass
public static void initTestFixture() {
exponentialBackOffTestConf = ConfigFactory.load("exponentialBackOff-test");
}
@Test
public void assertImmutability() {
assertInstancesOf(DefaultExponentialBackOffConfig.class,
areImmutable());
}
@Test
public void testHashCodeAndEquals() {
EqualsVerifier.forClass(DefaultExponentialBackOffConfig.class)
.usingGetClass()
.verify();
}
@Test
public void underTestReturnsDefaultValuesIfBaseConfigWasEmpty() {
final DefaultExponentialBackOffConfig underTest = DefaultExponentialBackOffConfig.of(ConfigFactory.empty());
softly.assertThat(underTest.getMin())
.as(ExponentialBackOffConfig.ExponentialBackOffConfigValue.MIN.getConfigPath())
.isEqualTo(ExponentialBackOffConfig.ExponentialBackOffConfigValue.MIN.getDefaultValue());
softly.assertThat(underTest.getMax())
.as(ExponentialBackOffConfig.ExponentialBackOffConfigValue.MAX.getConfigPath())
.isEqualTo(ExponentialBackOffConfig.ExponentialBackOffConfigValue.MAX.getDefaultValue());
softly.assertThat(underTest.getRandomFactor())
.as(ExponentialBackOffConfig.ExponentialBackOffConfigValue.RANDOM_FACTOR.getConfigPath())
.isEqualTo(ExponentialBackOffConfig.ExponentialBackOffConfigValue.RANDOM_FACTOR.getDefaultValue());
}
@Test
public void underTestReturnsValuesOfConfigFile() {
final DefaultExponentialBackOffConfig underTest = DefaultExponentialBackOffConfig.of(exponentialBackOffTestConf);
softly.assertThat(underTest.getMin())
.as(ExponentialBackOffConfig.ExponentialBackOffConfigValue.MIN.getConfigPath())
.isEqualTo(Duration.ofSeconds(2L));
softly.assertThat(underTest.getMax())
.as(ExponentialBackOffConfig.ExponentialBackOffConfigValue.MAX.getConfigPath())
.isEqualTo(Duration.ofSeconds(20L));
softly.assertThat(underTest.getRandomFactor())
.as(ExponentialBackOffConfig.ExponentialBackOffConfigValue.RANDOM_FACTOR.getConfigPath())
.isEqualTo(0.3D);
}
}