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DefaultMdcEntryTest.java
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DefaultMdcEntryTest.java
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/*
* Copyright (c) 2020 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.internal.utils.pekko.logging;
import static org.assertj.core.api.Assertions.assertThat;
import static org.assertj.core.api.Assertions.assertThatIllegalArgumentException;
import static org.assertj.core.api.Assertions.assertThatNullPointerException;
import static org.mutabilitydetector.unittesting.MutabilityAssert.assertInstancesOf;
import static org.mutabilitydetector.unittesting.MutabilityMatchers.areImmutable;
import org.junit.Test;
import nl.jqno.equalsverifier.EqualsVerifier;
/**
* Unit test for {@link DefaultMdcEntry}.
*/
public final class DefaultMdcEntryTest {
@Test
public void assertImmutability() {
assertInstancesOf(DefaultMdcEntry.class, areImmutable());
}
@Test
public void testHashCodeAndEquals() {
EqualsVerifier.forClass(DefaultMdcEntry.class)
.usingGetClass()
.verify();
}
@Test
public void getInstanceWithNullKey() {
assertThatNullPointerException()
.isThrownBy(() -> DefaultMdcEntry.of(null, "bar"))
.withMessage("The key must not be null!")
.withNoCause();
}
@Test
public void getInstanceWithEmptyKey() {
assertThatIllegalArgumentException()
.isThrownBy(() -> DefaultMdcEntry.of("", "bar"))
.withMessage("The argument 'key' must not be empty!")
.withNoCause();
}
@Test
public void getInstanceWithNullValue() {
final DefaultMdcEntry underTest = DefaultMdcEntry.of("foo", null);
assertThat(underTest.getValueOrNull()).isNull();
}
@Test
public void getKey() {
final String key = "foo";
final DefaultMdcEntry underTest = DefaultMdcEntry.of(key, "bar");
assertThat(underTest.getKey()).isEqualTo(key);
}
@Test
public void getValue() {
final String value = "bar";
final DefaultMdcEntry underTest = DefaultMdcEntry.of("foo", value);
assertThat(underTest.getValueOrNull()).isEqualTo(value);
}
}