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CheckExternalFilterTest.java
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CheckExternalFilterTest.java
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/*
* Copyright (c) 2022 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.model.headers.translator;
import static org.assertj.core.api.Assertions.assertThat;
import static org.assertj.core.api.Assertions.assertThatNullPointerException;
import static org.mutabilitydetector.unittesting.AllowedReason.assumingFields;
import static org.mutabilitydetector.unittesting.AllowedReason.provided;
import static org.mutabilitydetector.unittesting.MutabilityAssert.assertInstancesOf;
import static org.mutabilitydetector.unittesting.MutabilityMatchers.areImmutable;
import java.util.Collections;
import java.util.Map;
import java.util.function.Predicate;
import org.assertj.core.util.Maps;
import org.eclipse.ditto.base.model.headers.DittoHeaderDefinition;
import org.eclipse.ditto.base.model.headers.HeaderDefinition;
import org.junit.Test;
import org.mockito.Mockito;
/**
* Unit test for {@link CheckExternalFilter}.
*/
public final class CheckExternalFilterTest {
@Test
public void assertImmutability() {
assertInstancesOf(CheckExternalFilter.class,
areImmutable(),
provided(Predicate.class).isAlsoImmutable(),
assumingFields("headerDefinitions").areSafelyCopiedUnmodifiableCollectionsWithImmutableElements());
}
@Test
public void tryToGetShouldReadFromExternalInstanceWithNullHeaderDefinitions() {
assertThatNullPointerException()
.isThrownBy(() -> CheckExternalFilter.shouldReadFromExternal(null))
.withMessage("The headerDefinitions must not be null!")
.withNoCause();
}
@Test
public void filterNullValueShouldReadFromExternal() {
final Map<String, HeaderDefinition> headerDefinitions = Mockito.mock(Map.class);
final CheckExternalFilter underTest = CheckExternalFilter.shouldReadFromExternal(headerDefinitions);
assertThat(underTest.apply("foo", null)).isNull();
Mockito.verifyNoInteractions(headerDefinitions);
}
@Test
public void filterValueWithoutMatchingHeaderDefinitionShouldBeReadFromExternal() {
final String key = "foo";
final String value = "bar";
final CheckExternalFilter underTest = CheckExternalFilter.shouldReadFromExternal(Collections.emptyMap());
assertThat(underTest.apply(key, value)).isEqualTo(value);
}
@Test
public void filterValueThatShouldBeReadFromExternal() {
final DittoHeaderDefinition headerDefinition = DittoHeaderDefinition.CORRELATION_ID;
final String value = "correlation-id";
final Map<String, HeaderDefinition> headerDefinitions =
Maps.newHashMap(headerDefinition.getKey(), headerDefinition);
final CheckExternalFilter underTest = CheckExternalFilter.shouldReadFromExternal(headerDefinitions);
assertThat(underTest.apply(headerDefinition.getKey(), value)).isEqualTo(value);
}
@Test
public void filterValueThatShouldNotBeReadFromExternal() {
final DittoHeaderDefinition headerDefinition = DittoHeaderDefinition.DRY_RUN;
final Map<String, HeaderDefinition> headerDefinitions =
Maps.newHashMap(headerDefinition.getKey(), headerDefinition);
final CheckExternalFilter underTest = CheckExternalFilter.shouldReadFromExternal(headerDefinitions);
assertThat(underTest.apply(headerDefinition.getKey(), "true")).isNull();
}
@Test
public void tryToGetShouldWriteToExternalInstanceWithNullHeaderDefinitions() {
assertThatNullPointerException()
.isThrownBy(() -> CheckExternalFilter.shouldWriteToExternal(null))
.withMessage("The headerDefinitions must not be null!")
.withNoCause();
}
@Test
public void filterNullValueShouldWriteToExternal() {
final Map<String, HeaderDefinition> headerDefinitions = Mockito.mock(Map.class);
final CheckExternalFilter underTest = CheckExternalFilter.shouldWriteToExternal(headerDefinitions);
assertThat(underTest.apply("foo", null)).isNull();
Mockito.verifyNoInteractions(headerDefinitions);
}
@Test
public void filterValueWithoutMatchingHeaderDefinitionShouldWriteToExternal() {
final String key = "foo";
final String value = "bar";
final CheckExternalFilter underTest = CheckExternalFilter.shouldWriteToExternal(Collections.emptyMap());
assertThat(underTest.apply(key, value)).isEqualTo(value);
}
@Test
public void filterValueThatShouldBeExposedExternally() {
final DittoHeaderDefinition headerDefinition = DittoHeaderDefinition.CORRELATION_ID;
final String value = "correlation-id";
final Map<String, HeaderDefinition> headerDefinitions =
Maps.newHashMap(headerDefinition.getKey(), headerDefinition);
final CheckExternalFilter underTest = CheckExternalFilter.shouldWriteToExternal(headerDefinitions);
assertThat(underTest.apply(headerDefinition.getKey(), value)).isEqualTo(value);
}
@Test
public void filterValueThatShouldNotBeExposedExternally() {
final DittoHeaderDefinition headerDefinition = DittoHeaderDefinition.DRY_RUN;
final Map<String, HeaderDefinition> headerDefinitions =
Maps.newHashMap(headerDefinition.getKey(), headerDefinition);
final CheckExternalFilter underTest = CheckExternalFilter.shouldWriteToExternal(headerDefinitions);
assertThat(underTest.apply(headerDefinition.getKey(), "true")).isNull();
}
@Test
public void filterShouldNotBeCaseSensitiveForDefinitionKey() {
final DittoHeaderDefinition headerDefinition = DittoHeaderDefinition.WWW_AUTHENTICATE;
doFilterShouldNotBeCaseSensitiveForDefinitionKey(headerDefinition, headerDefinition.getKey());
doFilterShouldNotBeCaseSensitiveForDefinitionKey(headerDefinition, headerDefinition.getKey().toUpperCase());
doFilterShouldNotBeCaseSensitiveForDefinitionKey(headerDefinition, "Www-authenticate");
}
private void doFilterShouldNotBeCaseSensitiveForDefinitionKey(final DittoHeaderDefinition headerDefinition,
final String key) {
final String value = "some www authenticate";
final Map<String, HeaderDefinition> headerDefinitions = Maps.newHashMap(headerDefinition.getKey(),
headerDefinition);
final CheckExternalFilter underTest = CheckExternalFilter.shouldReadFromExternal(headerDefinitions);
// DittoHeaderDefinition.WWW_AUTHENTICATE may not be read from external
assertThat(underTest.apply(key, value)).withFailMessage(
"For key '" + key + "' the mapped value must be null").isNull();
}
}