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PlaceholderSubstitutionTest.java
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PlaceholderSubstitutionTest.java
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/*
* Copyright (c) 2017 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.concierge.service.enforcement.placeholders;
import static org.assertj.core.api.Assertions.assertThat;
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.concurrent.CompletionStage;
import java.util.concurrent.ExecutionException;
import java.util.function.Function;
import org.eclipse.ditto.concierge.service.enforcement.placeholders.strategies.SubstitutionStrategyRegistry;
import org.eclipse.ditto.json.JsonPointer;
import org.eclipse.ditto.json.JsonValue;
import org.eclipse.ditto.base.model.auth.AuthorizationContext;
import org.eclipse.ditto.base.model.auth.AuthorizationSubject;
import org.eclipse.ditto.base.model.auth.DittoAuthorizationContextType;
import org.eclipse.ditto.base.model.headers.DittoHeaders;
import org.eclipse.ditto.base.model.headers.DittoHeadersSettable;
import org.eclipse.ditto.base.model.headers.WithDittoHeaders;
import org.eclipse.ditto.policies.model.Label;
import org.eclipse.ditto.policies.model.PolicyId;
import org.eclipse.ditto.policies.model.Subject;
import org.eclipse.ditto.policies.model.SubjectType;
import org.eclipse.ditto.things.model.ThingId;
import org.eclipse.ditto.policies.model.signals.commands.modify.ModifySubject;
import org.eclipse.ditto.things.model.signals.commands.modify.ModifyAttribute;
import org.junit.Before;
import org.junit.Ignore;
import org.junit.Test;
/**
* Tests specifics of {@link PlaceholderSubstitution}. Command-specific details are tested in concrete strategy tests
* (see implementations of
* {@link org.eclipse.ditto.concierge.service.enforcement.placeholders.strategies.AbstractSubstitutionStrategyTestBase}.
*/
public class PlaceholderSubstitutionTest {
private static final String SUBJECT_ID = "nginx:ditto";
private static final String CUSTOM_HEADER_KEY = "customHeaderKey";
private static final String ANOTHER_SUBJECT_ID = "custom:subjectId";
private static final DittoHeaders DITTO_HEADERS = DittoHeaders.newBuilder()
.authorizationContext(AuthorizationContext.newInstance(DittoAuthorizationContextType.UNSPECIFIED,
AuthorizationSubject.newInstance(SUBJECT_ID)))
.putHeader(CUSTOM_HEADER_KEY, ANOTHER_SUBJECT_ID)
.build();
private PlaceholderSubstitution underTest;
@Before
public void init() {
underTest = PlaceholderSubstitution.newInstance();
}
@Test
public void assertImmutability() {
assertInstancesOf(PlaceholderSubstitution.class, areImmutable(),
provided(HeaderBasedPlaceholderSubstitutionAlgorithm.class, SubstitutionStrategyRegistry.class)
.areAlsoImmutable());
}
@Test
public void applyWithNonHandledCommandReturnsTheSameCommandInstance() {
final ModifyAttribute nonHandledCommand = ModifyAttribute.of(ThingId.of("org.eclipse.ditto:my-thing"),
JsonPointer.of("attributePointer"), JsonValue.of("attributeValue"), DITTO_HEADERS);
final WithDittoHeaders response = applyBlocking(nonHandledCommand);
assertThat(response).isSameAs(nonHandledCommand);
}
@Test
public void applyWithHandledCommandReturnsTheReplacedCommandInstanceWhenCustomPlaceholderIsSpecified() {
final String customPlaceholderKey = "request:customPlaceholder";
final Map<String, Function<DittoHeaders, String>> additionalReplacementDefinitions =
Collections.singletonMap(customPlaceholderKey,
dittoHeaders -> dittoHeaders.get(CUSTOM_HEADER_KEY));
final PlaceholderSubstitution extendedPlaceholderSubstitution =
PlaceholderSubstitution.newExtendedInstance(additionalReplacementDefinitions);
final ModifySubject commandWithoutPlaceholders = ModifySubject.of(PolicyId.of("org.eclipse.ditto:my-policy"),
Label.of("my-label"), Subject.newInstance("{{ " + customPlaceholderKey + " }}",
SubjectType.GENERATED), DITTO_HEADERS);
final WithDittoHeaders response =
applyBlocking(commandWithoutPlaceholders, extendedPlaceholderSubstitution);
final ModifySubject expectedCommandWithPlaceholders = ModifySubject.of(commandWithoutPlaceholders.getEntityId(),
commandWithoutPlaceholders.getLabel(), Subject.newInstance(ANOTHER_SUBJECT_ID, SubjectType.GENERATED),
DITTO_HEADERS);
assertThat(response).isEqualTo(expectedCommandWithPlaceholders);
}
@Test
public void applyWithHandledCommandReturnsTheReplacedCommandInstanceWhenLegacyPlaceholderIsSpecified() {
final ModifySubject commandWithoutPlaceholders = ModifySubject.of(PolicyId.of("org.eclipse.ditto:my-policy"),
Label.of("my-label"), Subject.newInstance("${request.subjectId}", SubjectType.GENERATED),
DITTO_HEADERS);
final WithDittoHeaders response = applyBlocking(commandWithoutPlaceholders);
final ModifySubject expectedCommandWithPlaceholders = ModifySubject.of(commandWithoutPlaceholders.getEntityId(),
commandWithoutPlaceholders.getLabel(), Subject.newInstance(SUBJECT_ID, SubjectType.GENERATED),
DITTO_HEADERS);
assertThat(response).isEqualTo(expectedCommandWithPlaceholders);
}
private DittoHeadersSettable<?> applyBlocking(final DittoHeadersSettable<?> input) {
return applyBlocking(input, underTest);
}
private DittoHeadersSettable<?> applyBlocking(final DittoHeadersSettable<?> input,
final PlaceholderSubstitution substitution) {
final CompletionStage<DittoHeadersSettable<?>> responseFuture = substitution.apply(input);
try {
return responseFuture.toCompletableFuture().get();
} catch (final InterruptedException | ExecutionException e) {
throw new IllegalStateException(e);
}
}
}