Replace FailureStrategy with FailureMetadata in gtld's Subjects

Also changed truth.SubjectFactory to truth.Subject.Factory (plain renaming) and use method reference instead of anonymous class to create the factory when applicable.

FailureMetadata, an opaque object to its users, is introduced to replace FailureStrategy in in custom Subject in order to resolve some existing flaws of FailureStrategy as well as enable new features to be added to Truth.

New API is available in Truth-0.36, if there is a build/pom.xml, it's also updated to use this version.

More information: See []

-------------
Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=176110788

javatests/google/registry/testing/AbstractDomainBaseSubject.java

@@ -15,7 +15,7 @@
 package google.registry.testing;
 
 import com.google.common.collect.ImmutableSet;
-import com.google.common.truth.FailureStrategy;
+import com.google.common.truth.FailureMetadata;
 import google.registry.model.domain.DomainBase;
 import google.registry.model.domain.DomainResource;
 import google.registry.model.domain.launch.LaunchNotice;
@@ -29,8 +29,8 @@ public abstract class AbstractDomainBaseSubject
     <T extends DomainBase, S extends AbstractDomainBaseSubject<T, S>>
     extends AbstractEppResourceSubject<T, S> {
 
-  public AbstractDomainBaseSubject(FailureStrategy strategy, T subject) {
-    super(strategy, subject);
+  public AbstractDomainBaseSubject(FailureMetadata failureMetadata, T subject) {
+    super(failureMetadata, subject);
   }
 
   public And<S> hasFullyQualifiedDomainName(String fullyQualifiedDomainName) {

javatests/google/registry/testing/AbstractEppResourceSubject.java

@@ -22,7 +22,7 @@ import static google.registry.testing.HistoryEntrySubject.assertAboutHistoryEntr
 import static google.registry.util.DiffUtils.prettyPrintEntityDeepDiff;
 
 import com.google.common.collect.ImmutableSet;
-import com.google.common.truth.FailureStrategy;
+import com.google.common.truth.FailureMetadata;
 import com.google.common.truth.Subject;
 import google.registry.model.EppResource;
 import google.registry.model.ImmutableObject;
@@ -39,8 +39,8 @@ import org.joda.time.DateTime;
 abstract class AbstractEppResourceSubject
     <T extends EppResource, S extends AbstractEppResourceSubject<T, S>> extends Subject<S, T> {
 
-  public AbstractEppResourceSubject(FailureStrategy strategy, T subject) {
-    super(strategy, checkNotNull(subject));
+  public AbstractEppResourceSubject(FailureMetadata failureMetadata, T subject) {
+    super(failureMetadata, checkNotNull(subject));
   }
 
   private List<HistoryEntry> getHistoryEntries() {

javatests/google/registry/testing/ContactResourceSubject.java

@@ -17,7 +17,7 @@ package google.registry.testing;
 import static com.google.common.base.Preconditions.checkNotNull;
 import static com.google.common.truth.Truth.assertAbout;
 
-import com.google.common.truth.FailureStrategy;
+import com.google.common.truth.FailureMetadata;
 import com.google.common.truth.SimpleSubjectBuilder;
 import google.registry.model.contact.ContactResource;
 import google.registry.model.contact.PostalInfo;
@@ -29,12 +29,8 @@ import org.joda.time.DateTime;
 public final class ContactResourceSubject
     extends AbstractEppResourceSubject<ContactResource, ContactResourceSubject> {
 
-  /** A factory for instances of this subject. */
-  private static class SubjectFactory
-      extends ReflectiveSubjectFactory<ContactResource, ContactResourceSubject>{}
-
-  public ContactResourceSubject(FailureStrategy strategy, ContactResource subject) {
-    super(strategy, checkNotNull(subject));
+  public ContactResourceSubject(FailureMetadata failureMetadata, ContactResource subject) {
+    super(failureMetadata, checkNotNull(subject));
   }
 
   public And<ContactResourceSubject> hasLocalizedPostalInfo(PostalInfo postalInfo) {
@@ -148,6 +144,6 @@ public final class ContactResourceSubject
 
   public static SimpleSubjectBuilder<ContactResourceSubject, ContactResource>
       assertAboutContacts() {
-    return assertAbout(new SubjectFactory());
+    return assertAbout(ContactResourceSubject::new);
   }
 }

javatests/google/registry/testing/DomainApplicationSubject.java

@@ -19,7 +19,7 @@ import static com.google.common.truth.Truth.assertAbout;
 import static com.google.common.truth.Truth.assertThat;
 
 import com.google.common.collect.ImmutableSet;
-import com.google.common.truth.FailureStrategy;
+import com.google.common.truth.FailureMetadata;
 import com.google.common.truth.SimpleSubjectBuilder;
 import google.registry.model.domain.DomainApplication;
 import google.registry.model.domain.Period;
@@ -76,16 +76,12 @@ public final class DomainApplicationSubject
     return andChainer();
   }
 
-  /** A factory for instances of this subject. */
-  private static class SubjectFactory
-      extends ReflectiveSubjectFactory<DomainApplication, DomainApplicationSubject>{}
-
-  public DomainApplicationSubject(FailureStrategy strategy, DomainApplication subject) {
-    super(strategy, checkNotNull(subject));
+  public DomainApplicationSubject(FailureMetadata failureMetadata, DomainApplication subject) {
+    super(failureMetadata, checkNotNull(subject));
   }
 
   public static SimpleSubjectBuilder<DomainApplicationSubject, DomainApplication>
       assertAboutApplications() {
-    return assertAbout(new SubjectFactory());
+    return assertAbout(DomainApplicationSubject::new);
   }
 }

javatests/google/registry/testing/DomainResourceSubject.java

@@ -17,7 +17,7 @@ package google.registry.testing;
 import static com.google.common.base.Preconditions.checkNotNull;
 import static com.google.common.truth.Truth.assertAbout;
 
-import com.google.common.truth.FailureStrategy;
+import com.google.common.truth.FailureMetadata;
 import com.google.common.truth.SimpleSubjectBuilder;
 import google.registry.model.domain.DomainResource;
 import google.registry.testing.TruthChainer.And;
@@ -28,10 +28,6 @@ import org.joda.time.DateTime;
 public final class DomainResourceSubject
     extends AbstractDomainBaseSubject<DomainResource, DomainResourceSubject> {
 
-  /** A factory for instances of this subject. */
-  private static class SubjectFactory
-      extends ReflectiveSubjectFactory<DomainResource, DomainResourceSubject>{}
-
   public And<DomainResourceSubject> hasRegistrationExpirationTime(DateTime expiration) {
     if (!Objects.equals(actual().getRegistrationExpirationTime(), expiration)) {
       failWithBadResults(
@@ -74,11 +70,11 @@ public final class DomainResourceSubject
     return hasValue(smdId, actual().getSmdId(), "has smdId");
   }
 
-  public DomainResourceSubject(FailureStrategy strategy, DomainResource subject) {
-    super(strategy, checkNotNull(subject));
+  public DomainResourceSubject(FailureMetadata failureMetadata, DomainResource subject) {
+    super(failureMetadata, checkNotNull(subject));
   }
 
   public static SimpleSubjectBuilder<DomainResourceSubject, DomainResource> assertAboutDomains() {
-    return assertAbout(new SubjectFactory());
+    return assertAbout(DomainResourceSubject::new);
   }
 }

javatests/google/registry/testing/EppExceptionSubject.java

@@ -18,10 +18,9 @@ import static com.google.common.truth.Truth.assertAbout;
 import static com.google.common.truth.Truth.assertThat;
 import static google.registry.flows.EppXmlTransformer.marshal;
 
-import com.google.common.truth.FailureStrategy;
+import com.google.common.truth.FailureMetadata;
 import com.google.common.truth.SimpleSubjectBuilder;
 import com.google.common.truth.Subject;
-import com.google.common.truth.SubjectFactory;
 import google.registry.flows.EppException;
 import google.registry.model.eppcommon.Trid;
 import google.registry.model.eppoutput.EppOutput;
@@ -33,8 +32,8 @@ import google.registry.xml.XmlException;
 /** Utility methods for asserting things about {@link EppException} instances. */
 public class EppExceptionSubject extends Subject<EppExceptionSubject, EppException> {
 
-  public EppExceptionSubject(FailureStrategy strategy, EppException subject) {
-    super(strategy, subject);
+  public EppExceptionSubject(FailureMetadata failureMetadata, EppException subject) {
+    super(failureMetadata, subject);
   }
 
   public And<EppExceptionSubject> hasMessage(String expected) {
@@ -58,10 +57,6 @@ public class EppExceptionSubject extends Subject<EppExceptionSubject, EppExcepti
   }
 
   public static SimpleSubjectBuilder<EppExceptionSubject, EppException> assertAboutEppExceptions() {
-    return assertAbout(new SubjectFactory<EppExceptionSubject, EppException>() {
-      @Override
-      public EppExceptionSubject getSubject(FailureStrategy strategy, EppException subject) {
-        return new EppExceptionSubject(strategy, subject);
-      }});
+    return assertAbout(EppExceptionSubject::new);
   }
 }

javatests/google/registry/testing/EppMetricSubject.java

@@ -17,21 +17,19 @@ package google.registry.testing;
 import static com.google.common.truth.Truth.assertAbout;
 import static google.registry.util.PreconditionsUtils.checkArgumentNotNull;
 
-import com.google.common.truth.FailureStrategy;
+import com.google.common.truth.FailureMetadata;
 import com.google.common.truth.Subject;
-import com.google.common.truth.SubjectFactory;
 import google.registry.model.eppoutput.Result.Code;
 import google.registry.monitoring.whitebox.EppMetric;
 import google.registry.testing.TruthChainer.And;
 import java.util.Objects;
 import java.util.Optional;
-import javax.annotation.Nullable;
 
 /** Utility methods for asserting things about {@link EppMetric} instances. */
 public class EppMetricSubject extends Subject<EppMetricSubject, EppMetric> {
 
-  public EppMetricSubject(FailureStrategy strategy, EppMetric subject) {
-    super(strategy, subject);
+  public EppMetricSubject(FailureMetadata failureMetadata, EppMetric subject) {
+    super(failureMetadata, subject);
   }
 
   public static EppMetricSubject assertThat(EppMetric subject) {
@@ -84,13 +82,7 @@ public class EppMetricSubject extends Subject<EppMetricSubject, EppMetric> {
     return new And<>(this);
   }
 
-  /** {@link SubjectFactory} for assertions about {@link EppMetric} objects. */
-  private static final SubjectFactory<EppMetricSubject, EppMetric> SUBJECT_FACTORY =
-      new SubjectFactory<EppMetricSubject, EppMetric>() {
-        @Override
-        public EppMetricSubject getSubject(
-            FailureStrategy failureStrategy, @Nullable EppMetric target) {
-          return new EppMetricSubject(failureStrategy, target);
-        }
-      };
+  /** {@link Subject.Factory} for assertions about {@link EppMetric} objects. */
+  private static final Subject.Factory<EppMetricSubject, EppMetric> SUBJECT_FACTORY =
+      EppMetricSubject::new;
 }

javatests/google/registry/testing/GenericEppResourceSubject.java

@@ -17,30 +17,20 @@ package google.registry.testing;
 import static com.google.common.base.Preconditions.checkNotNull;
 import static com.google.common.truth.Truth.assertAbout;
 
-import com.google.common.truth.FailureStrategy;
+import com.google.common.truth.FailureMetadata;
 import com.google.common.truth.SimpleSubjectBuilder;
-import com.google.common.truth.SubjectFactory;
 import google.registry.model.EppResource;
 
 /** Truth subject for asserting things about {@link EppResource} instances. */
 public final class GenericEppResourceSubject
     extends AbstractEppResourceSubject<EppResource, GenericEppResourceSubject> {
 
-  /** A factory for instances of this subject. */
-  private static class GenericEppResourceSubjectFactory
-      extends SubjectFactory<GenericEppResourceSubject, EppResource> {
-    @Override
-    public GenericEppResourceSubject getSubject(FailureStrategy strategy, EppResource subject) {
-      return new GenericEppResourceSubject(strategy, subject);
-    }
-  }
-
-  public GenericEppResourceSubject(FailureStrategy strategy, EppResource subject) {
-    super(strategy, checkNotNull(subject));
+  public GenericEppResourceSubject(FailureMetadata failureMetadata, EppResource subject) {
+    super(failureMetadata, checkNotNull(subject));
   }
 
   public static SimpleSubjectBuilder<GenericEppResourceSubject, EppResource>
       assertAboutEppResources() {
-    return assertAbout(new GenericEppResourceSubjectFactory());
+    return assertAbout(GenericEppResourceSubject::new);
   }
 }

javatests/google/registry/testing/HistoryEntrySubject.java

@@ -16,7 +16,7 @@ package google.registry.testing;
 
 import static com.google.common.truth.Truth.assertAbout;
 
-import com.google.common.truth.FailureStrategy;
+import com.google.common.truth.FailureMetadata;
 import com.google.common.truth.SimpleSubjectBuilder;
 import com.google.common.truth.Subject;
 import google.registry.model.domain.Period;
@@ -30,12 +30,8 @@ public class HistoryEntrySubject extends Subject<HistoryEntrySubject, HistoryEnt
 
   private String customDisplaySubject;
 
-  /** A factory for instances of this subject. */
-  private static class SubjectFactory
-      extends ReflectiveSubjectFactory<HistoryEntry, HistoryEntrySubject>{}
-
-  public HistoryEntrySubject(FailureStrategy strategy, HistoryEntry subject) {
-    super(strategy, subject);
+  public HistoryEntrySubject(FailureMetadata failureMetadata, HistoryEntry subject) {
+    super(failureMetadata, subject);
   }
 
   @Override
@@ -105,6 +101,6 @@ public class HistoryEntrySubject extends Subject<HistoryEntrySubject, HistoryEnt
 
   public static SimpleSubjectBuilder<HistoryEntrySubject, HistoryEntry>
       assertAboutHistoryEntries() {
-    return assertAbout(new SubjectFactory());
+    return assertAbout(HistoryEntrySubject::new);
   }
 }

javatests/google/registry/testing/HostResourceSubject.java

@@ -17,7 +17,7 @@ package google.registry.testing;
 import static com.google.common.base.Preconditions.checkNotNull;
 import static com.google.common.truth.Truth.assertAbout;
 
-import com.google.common.truth.FailureStrategy;
+import com.google.common.truth.FailureMetadata;
 import com.google.common.truth.SimpleSubjectBuilder;
 import com.googlecode.objectify.Key;
 import google.registry.model.domain.DomainResource;
@@ -29,16 +29,12 @@ import org.joda.time.DateTime;
 public final class HostResourceSubject
     extends AbstractEppResourceSubject<HostResource, HostResourceSubject> {
 
-  /** A factory for instances of this subject. */
-  private static class SubjectFactory
-      extends ReflectiveSubjectFactory<HostResource, HostResourceSubject>{}
-
-  public HostResourceSubject(FailureStrategy strategy, HostResource subject) {
-    super(strategy, checkNotNull(subject));
+  public HostResourceSubject(FailureMetadata failureMetadata, HostResource subject) {
+    super(failureMetadata, checkNotNull(subject));
   }
 
   public static SimpleSubjectBuilder<HostResourceSubject, HostResource> assertAboutHosts() {
-    return assertAbout(new SubjectFactory());
+    return assertAbout(HostResourceSubject::new);
   }
 
   public And<HostResourceSubject> hasLastTransferTime(DateTime lastTransferTime) {

javatests/google/registry/testing/LogsSubject.java

@@ -20,7 +20,7 @@ import static com.google.common.truth.Truth.assertThat;
 import com.google.common.collect.ImmutableList;
 import com.google.common.testing.TestLogHandler;
 import com.google.common.truth.Correspondence;
-import com.google.common.truth.FailureStrategy;
+import com.google.common.truth.FailureMetadata;
 import com.google.common.truth.SimpleSubjectBuilder;
 import com.google.common.truth.StringSubject;
 import com.google.common.truth.Subject;
@@ -33,12 +33,8 @@ import java.util.logging.LogRecord;
 /** Utility methods for asserting things about logging {@link Handler} instances. */
 public class LogsSubject extends Subject<LogsSubject, TestLogHandler> {
 
-  /** A factory for instances of this subject. */
-  private static class SubjectFactory
-      extends ReflectiveSubjectFactory<TestLogHandler, LogsSubject> {}
-
-  public LogsSubject(FailureStrategy strategy, TestLogHandler subject) {
-    super(strategy, subject);
+  public LogsSubject(FailureMetadata failureMetadata, TestLogHandler subject) {
+    super(failureMetadata, subject);
   }
 
   private static final Correspondence<String, String> CONTAINS_CORRESPONDENCE =
@@ -88,6 +84,6 @@ public class LogsSubject extends Subject<LogsSubject, TestLogHandler> {
   }
 
   public static SimpleSubjectBuilder<LogsSubject, TestLogHandler> assertAboutLogs() {
-    return assertAbout(new SubjectFactory());
+    return assertAbout(LogsSubject::new);
   }
 }

javatests/google/registry/testing/ReflectiveSubjectFactory.java

@@ -1,36 +0,0 @@
-// Copyright 2017 The Nomulus Authors. All Rights Reserved.
-//
-// Licensed under the Apache License, Version 2.0 (the "License");
-// you may not use this file except in compliance with the License.
-// You may obtain a copy of the License at
-//
-//     http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS IS" BASIS,
-// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-// See the License for the specific language governing permissions and
-// limitations under the License.
-
-package google.registry.testing;
-
-import com.google.common.truth.FailureStrategy;
-import com.google.common.truth.Subject;
-import com.google.common.truth.SubjectFactory;
-import google.registry.util.TypeUtils.TypeInstantiator;
-
-/** Helper to reduce boilerplate in making new Truth subject classes. */
-public class ReflectiveSubjectFactory<T, S extends Subject<S, T>> extends SubjectFactory<S, T> {
-  @Override
-  public S getSubject(FailureStrategy strategy, T subject) {
-    try {
-      Class<S> sType = new TypeInstantiator<S>(getClass()){}.getExactType();
-      return sType
-          .getConstructor(FailureStrategy.class, subject.getClass())
-          .newInstance(strategy, subject);
-    } catch (ReflectiveOperationException e) {
-      throw new RuntimeException(e);
-    }
-  }
-}
-