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DittoMessageDirectionValueValidatorTest.java
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DittoMessageDirectionValueValidatorTest.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.messages.model;
import static org.assertj.core.api.Assertions.assertThatCode;
import static org.assertj.core.api.Assertions.assertThatExceptionOfType;
import static org.mutabilitydetector.unittesting.MutabilityAssert.assertInstancesOf;
import static org.mutabilitydetector.unittesting.MutabilityMatchers.areImmutable;
import org.eclipse.ditto.base.model.exceptions.DittoHeaderInvalidException;
import org.junit.Test;
public final class DittoMessageDirectionValueValidatorTest {
private static final DittoMessageDirectionValueValidator underTest =
DittoMessageDirectionValueValidator.getInstance();
@Test
public void assertImmutability() {
assertInstancesOf(DittoMessageDirectionValueValidator.class, areImmutable());
}
@Test
public void throwsHeaderInvalidExceptionIfNotToOrFrom() {
assertThatExceptionOfType(DittoHeaderInvalidException.class)
.isThrownBy(() -> underTest.accept(MessageHeaderDefinition.DIRECTION, "foo"))
.withCauseInstanceOf(IllegalArgumentException.class);
}
@Test
public void successfullyValidatesToUpperCase() {
assertThatCode(() -> underTest.accept(MessageHeaderDefinition.DIRECTION, "TO"))
.doesNotThrowAnyException();
}
@Test
public void successfullyValidatesToLowerCase() {
assertThatCode(() -> underTest.accept(MessageHeaderDefinition.DIRECTION, "to"))
.doesNotThrowAnyException();
}
@Test
public void successfullyValidatesFromUpperCase() {
assertThatCode(() -> underTest.accept(MessageHeaderDefinition.DIRECTION, "FROM"))
.doesNotThrowAnyException();
}
@Test
public void successfullyValidatesFromLowerCase() {
assertThatCode(() -> underTest.accept(MessageHeaderDefinition.DIRECTION, "fRoM"))
.doesNotThrowAnyException();
}
}