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CreateThingSubstitutionStrategyTest.java
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CreateThingSubstitutionStrategyTest.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.things.service.enforcement.pre;
import static org.assertj.core.api.Assertions.assertThat;
import static org.mutabilitydetector.unittesting.MutabilityAssert.assertInstancesOf;
import static org.mutabilitydetector.unittesting.MutabilityMatchers.areImmutable;
import java.util.Collections;
import java.util.concurrent.CompletionStage;
import java.util.concurrent.ExecutionException;
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.WithDittoHeaders;
import org.eclipse.ditto.base.model.signals.Signal;
import org.eclipse.ditto.json.JsonObject;
import org.eclipse.ditto.policies.model.EffectedPermissions;
import org.eclipse.ditto.policies.model.PoliciesModelFactory;
import org.eclipse.ditto.policies.model.Policy;
import org.eclipse.ditto.policies.model.PolicyEntry;
import org.eclipse.ditto.policies.model.PolicyId;
import org.eclipse.ditto.policies.model.Resource;
import org.eclipse.ditto.policies.model.Subject;
import org.eclipse.ditto.policies.model.SubjectType;
import org.eclipse.ditto.policies.model.Subjects;
import org.eclipse.ditto.things.model.Thing;
import org.eclipse.ditto.things.model.ThingId;
import org.eclipse.ditto.things.model.signals.commands.modify.CreateThing;
import org.junit.Before;
import org.junit.Test;
/**
* Tests {@link CreateThingSubstitutionStrategy} in context of
* {@link org.eclipse.ditto.policies.enforcement.placeholders.AbstractPlaceholderSubstitutionPreEnforcer}.
*/
public class CreateThingSubstitutionStrategyTest {
private static final String SUBJECT_ID_PLACEHOLDER = "{{ request:subjectId }}";
private static final String NAMESPACE = "org.eclipse.ditto";
private static final PolicyId POLICY_ID = PolicyId.of(NAMESPACE, "my-policy");
private static final String LABEL = "my-label";
private static final String SUBJECT_ID = "nginx:ditto";
private static final ThingId THING_ID = ThingId.of(NAMESPACE, "my-thing");
private static final Thing THING = Thing.newBuilder().setId(THING_ID)
.setAttributes(JsonObject.newBuilder().set("key", "val").build())
.build();
private static final Iterable<Resource> RESOURCES = Collections.singleton(
Resource.newInstance("resourceKey", "resourcePath",
EffectedPermissions.newInstance(Collections.singleton("READ"), Collections.emptySet())));
private static final DittoHeaders DITTO_HEADERS = DittoHeaders.newBuilder()
.authorizationContext(AuthorizationContext.newInstance(DittoAuthorizationContextType.UNSPECIFIED,
AuthorizationSubject.newInstance(SUBJECT_ID)))
.build();
protected ThingsPlaceholderSubstitutionPreEnforcer substitution;
@Before
public void init() {
substitution = ThingsPlaceholderSubstitutionPreEnforcer.newInstance();
}
@Test
public void assertImmutability() {
assertInstancesOf(CreateThingSubstitutionStrategy.class, areImmutable());
}
@Test
public void applyReturnsTheSameCommandInstanceWhenNoPlaceholderForPolicySubjectIdIsSpecified() {
final PolicyEntry policyEntry = PolicyEntry.newInstance(LABEL,
Subjects.newInstance(Subject.newInstance(SUBJECT_ID, SubjectType.GENERATED)), RESOURCES);
final Policy policy = PoliciesModelFactory.newPolicy(POLICY_ID, Collections.singletonList(policyEntry));
final CreateThing commandWithoutPlaceholders = CreateThing.of(THING, policy.toJson(), DITTO_HEADERS);
final WithDittoHeaders response = applyBlocking(commandWithoutPlaceholders);
assertThat(response).isSameAs(commandWithoutPlaceholders);
}
@Test
public void applyReturnsTheSameCommandInstanceWhenNoInlinePolicyIsSpecified() {
final CreateThing commandWithoutInlinePolicy = CreateThing.of(THING, null, DITTO_HEADERS);
final WithDittoHeaders response = applyBlocking(commandWithoutInlinePolicy);
assertThat(response).isSameAs(commandWithoutInlinePolicy);
}
@Test
public void applyReturnsTheSameCommandInstanceWhenEmptyInlinePolicyIsSpecified() {
final CreateThing commandWithoutInlinePolicy =
CreateThing.of(THING, JsonObject.newBuilder().set("entries", JsonObject.empty()).build(), DITTO_HEADERS);
final WithDittoHeaders response = applyBlocking(commandWithoutInlinePolicy);
assertThat(response).isSameAs(commandWithoutInlinePolicy);
}
@Test
public void applyReturnsTheReplacedCommandInstanceWhenPlaceholderForPolicySubjectIdIsSpecified() {
final PolicyEntry policyEntryWithPlaceholders = PolicyEntry.newInstance(LABEL,
Subjects.newInstance(Subject.newInstance(SUBJECT_ID_PLACEHOLDER, SubjectType.GENERATED)),
RESOURCES);
final Policy policyWithPlaceholders =
PoliciesModelFactory.newPolicy(POLICY_ID, Collections.singletonList(policyEntryWithPlaceholders));
final CreateThing commandWithPlaceholders =
CreateThing.of(THING, policyWithPlaceholders.toJson(), DITTO_HEADERS);
final WithDittoHeaders response = applyBlocking(commandWithPlaceholders);
final PolicyEntry expectedPolicyEntryReplaced = PolicyEntry.newInstance(LABEL,
Subjects.newInstance(Subject.newInstance(SUBJECT_ID, SubjectType.GENERATED)),
RESOURCES);
final Policy expectedPolicyReplaced =
PoliciesModelFactory.newPolicy(POLICY_ID, Collections.singletonList(expectedPolicyEntryReplaced));
final CreateThing expectedCommandReplaced =
CreateThing.of(THING, expectedPolicyReplaced.toJson(), DITTO_HEADERS);
assertThat(response).isEqualTo(expectedCommandReplaced);
}
private final Signal<?> applyBlocking(final Signal<?> input) {
final CompletionStage<Signal<?>> responseFuture = substitution.apply(input);
try {
return responseFuture.toCompletableFuture().get();
} catch (final InterruptedException | ExecutionException e) {
throw new IllegalStateException(e);
}
}
}