Re-add assertions that EppExceptions marshal correctly

These checks were removed in [] and re-adding them is the last
step of the migration to using expectThrows/assertThrows globally.

Note that this is roughly half of them. More to come in a follow-up CL.

-------------
Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=179216707

javatests/google/registry/flows/ExtensionManagerTest.java

@@ -15,7 +15,8 @@
 package google.registry.flows;
 
 import static com.google.common.truth.Truth.assertThat;
-import static google.registry.testing.JUnitBackports.assertThrows;
+import static google.registry.testing.EppExceptionSubject.assertAboutEppExceptions;
+import static google.registry.testing.JUnitBackports.expectThrows;
 
 import com.google.common.collect.ImmutableList;
 import com.google.common.collect.ImmutableSet;
@@ -50,128 +51,148 @@ public class ExtensionManagerTest {
   public final AppEngineRule appEngine = AppEngineRule.builder()
       .withDatastore()
       .build();
+
   @Test
   public void testDuplicateExtensionsForbidden() throws Exception {
-    ExtensionManager manager = new TestInstanceBuilder()
+    ExtensionManager manager =
-        .setEppRequestSource(EppRequestSource.TOOL)
+        new TestInstanceBuilder()
-        .setDeclaredUris()
+            .setEppRequestSource(EppRequestSource.TOOL)
-        .setSuppliedExtensions(
+            .setDeclaredUris()
-            MetadataExtension.class,
+            .setSuppliedExtensions(
-            LaunchCreateExtension.class,
+                MetadataExtension.class, LaunchCreateExtension.class, MetadataExtension.class)
-            MetadataExtension.class)
+            .build();
-        .build();
     manager.register(MetadataExtension.class, LaunchCreateExtension.class);
-    assertThrows(UnsupportedRepeatedExtensionException.class, () -> manager.validate());
+    EppException thrown =
+        expectThrows(UnsupportedRepeatedExtensionException.class, manager::validate);
+    assertAboutEppExceptions().that(thrown).marshalsToXml();
   }
 
   @Test
   public void testUndeclaredExtensionsLogged() throws Exception {
     TestLogHandler handler = new TestLogHandler();
     Logger.getLogger(ExtensionManager.class.getCanonicalName()).addHandler(handler);
-    ExtensionManager manager = new TestInstanceBuilder()
+    ExtensionManager manager =
-        .setEppRequestSource(EppRequestSource.TOOL)
+        new TestInstanceBuilder()
-        .setDeclaredUris()
+            .setEppRequestSource(EppRequestSource.TOOL)
-        .setSuppliedExtensions(MetadataExtension.class)
+            .setDeclaredUris()
-        .build();
+            .setSuppliedExtensions(MetadataExtension.class)
+            .build();
     manager.register(MetadataExtension.class);
     manager.validate();
     ImmutableList.Builder<String> logMessages = new ImmutableList.Builder<>();
     for (LogRecord record : handler.getStoredLogRecords()) {
       logMessages.add(record.getMessage());
     }
-    assertThat(logMessages.build()).contains(
+    assertThat(logMessages.build())
-        "Client clientId is attempting to run HelloFlow without declaring "
+        .contains(
-            + "URIs [urn:google:params:xml:ns:metadata-1.0] on login");
+            "Client clientId is attempting to run HelloFlow without declaring "
+                + "URIs [urn:google:params:xml:ns:metadata-1.0] on login");
   }
 
   @Test
   public void testBlacklistedExtensions_forbiddenWhenUndeclared() throws Exception {
-    ExtensionManager manager = new TestInstanceBuilder()
+    ExtensionManager manager =
-        .setEppRequestSource(EppRequestSource.TOOL)
+        new TestInstanceBuilder()
-        .setDeclaredUris()
+            .setEppRequestSource(EppRequestSource.TOOL)
-        .setSuppliedExtensions(FeeInfoCommandExtensionV06.class)
+            .setDeclaredUris()
-        .build();
+            .setSuppliedExtensions(FeeInfoCommandExtensionV06.class)
+            .build();
     manager.register(FeeInfoCommandExtensionV06.class);
-    assertThrows(UndeclaredServiceExtensionException.class, () -> manager.validate());
+    EppException thrown =
+        expectThrows(UndeclaredServiceExtensionException.class, manager::validate);
+    assertAboutEppExceptions().that(thrown).marshalsToXml();
   }
 
   @Test
   public void testBlacklistedExtensions_allowedWhenDeclared() throws Exception {
-    ExtensionManager manager = new TestInstanceBuilder()
+    ExtensionManager manager =
-        .setEppRequestSource(EppRequestSource.TOOL)
+        new TestInstanceBuilder()
-        .setDeclaredUris(ServiceExtension.FEE_0_6.getUri())
+            .setEppRequestSource(EppRequestSource.TOOL)
-        .setSuppliedExtensions(FeeInfoCommandExtensionV06.class)
+            .setDeclaredUris(ServiceExtension.FEE_0_6.getUri())
-        .build();
+            .setSuppliedExtensions(FeeInfoCommandExtensionV06.class)
+            .build();
     manager.register(FeeInfoCommandExtensionV06.class);
     manager.validate();
   }
 
   @Test
   public void testMetadataExtension_allowedForToolSource() throws Exception {
-    ExtensionManager manager = new TestInstanceBuilder()
+    ExtensionManager manager =
-        .setEppRequestSource(EppRequestSource.TOOL)
+        new TestInstanceBuilder()
-        .setDeclaredUris()
+            .setEppRequestSource(EppRequestSource.TOOL)
-        .setSuppliedExtensions(MetadataExtension.class)
+            .setDeclaredUris()
-        .build();
+            .setSuppliedExtensions(MetadataExtension.class)
+            .build();
     manager.register(MetadataExtension.class);
     manager.validate();
   }
 
   @Test
   public void testMetadataExtension_forbiddenWhenNotToolSource() throws Exception {
-    ExtensionManager manager = new TestInstanceBuilder()
+    ExtensionManager manager =
-        .setEppRequestSource(EppRequestSource.CONSOLE)
+        new TestInstanceBuilder()
-        .setDeclaredUris()
+            .setEppRequestSource(EppRequestSource.CONSOLE)
-        .setSuppliedExtensions(MetadataExtension.class)
+            .setDeclaredUris()
-        .build();
+            .setSuppliedExtensions(MetadataExtension.class)
+            .build();
     manager.register(MetadataExtension.class);
-    assertThrows(OnlyToolCanPassMetadataException.class, () -> manager.validate());
+    EppException thrown = expectThrows(OnlyToolCanPassMetadataException.class, manager::validate);
+    assertAboutEppExceptions().that(thrown).marshalsToXml();
   }
 
   @Test
   public void testSuperuserExtension_allowedForToolSource() throws Exception {
-    ExtensionManager manager = new TestInstanceBuilder()
+    ExtensionManager manager =
-        .setEppRequestSource(EppRequestSource.TOOL)
+        new TestInstanceBuilder()
-        .setDeclaredUris()
+            .setEppRequestSource(EppRequestSource.TOOL)
-        .setSuppliedExtensions(DomainTransferRequestSuperuserExtension.class)
+            .setDeclaredUris()
-        .setIsSuperuser(true)
+            .setSuppliedExtensions(DomainTransferRequestSuperuserExtension.class)
-        .build();
+            .setIsSuperuser(true)
+            .build();
     manager.register(DomainTransferRequestSuperuserExtension.class);
     manager.validate();
   }
 
   @Test
   public void testSuperuserExtension_forbiddenWhenNotSuperuser() throws Exception {
-    ExtensionManager manager = new TestInstanceBuilder()
+    ExtensionManager manager =
-        .setEppRequestSource(EppRequestSource.TOOL)
+        new TestInstanceBuilder()
-        .setDeclaredUris()
+            .setEppRequestSource(EppRequestSource.TOOL)
-        .setSuppliedExtensions(DomainTransferRequestSuperuserExtension.class)
+            .setDeclaredUris()
-        .setIsSuperuser(false)
+            .setSuppliedExtensions(DomainTransferRequestSuperuserExtension.class)
-        .build();
+            .setIsSuperuser(false)
+            .build();
     manager.register(DomainTransferRequestSuperuserExtension.class);
-    assertThrows(UnauthorizedForSuperuserExtensionException.class, () -> manager.validate());
+    EppException thrown =
+        expectThrows(UnauthorizedForSuperuserExtensionException.class, manager::validate);
+    assertAboutEppExceptions().that(thrown).marshalsToXml();
   }
 
   @Test
   public void testSuperuserExtension_forbiddenWhenNotToolSource() throws Exception {
-    ExtensionManager manager = new TestInstanceBuilder()
+    ExtensionManager manager =
-        .setEppRequestSource(EppRequestSource.CONSOLE)
+        new TestInstanceBuilder()
-        .setDeclaredUris()
+            .setEppRequestSource(EppRequestSource.CONSOLE)
-        .setSuppliedExtensions(DomainTransferRequestSuperuserExtension.class)
+            .setDeclaredUris()
-        .setIsSuperuser(true)
+            .setSuppliedExtensions(DomainTransferRequestSuperuserExtension.class)
-        .build();
+            .setIsSuperuser(true)
+            .build();
     manager.register(DomainTransferRequestSuperuserExtension.class);
-    assertThrows(UnauthorizedForSuperuserExtensionException.class, () -> manager.validate());
+    EppException thrown =
+        expectThrows(UnauthorizedForSuperuserExtensionException.class, manager::validate);
+    assertAboutEppExceptions().that(thrown).marshalsToXml();
   }
 
   @Test
   public void testUnimplementedExtensionsForbidden() throws Exception {
-    ExtensionManager manager = new TestInstanceBuilder()
+    ExtensionManager manager =
-        .setEppRequestSource(EppRequestSource.TOOL)
+        new TestInstanceBuilder()
-        .setDeclaredUris()
+            .setEppRequestSource(EppRequestSource.TOOL)
-        .setSuppliedExtensions(LaunchCreateExtension.class)
+            .setDeclaredUris()
-        .build();
+            .setSuppliedExtensions(LaunchCreateExtension.class)
-    assertThrows(UnimplementedExtensionException.class, () -> manager.validate());
+            .build();
+    EppException thrown = expectThrows(UnimplementedExtensionException.class, manager::validate);
+    assertAboutEppExceptions().that(thrown).marshalsToXml();
   }
 
   /** A builder for a test-ready {@link ExtensionManager} instance. */

javatests/google/registry/flows/ResourceFlowTestCase.java

@@ -19,7 +19,8 @@ import static com.google.common.truth.Truth.assertThat;
 import static google.registry.model.EppResourceUtils.loadByForeignKey;
 import static google.registry.model.ofy.ObjectifyService.ofy;
 import static google.registry.model.tmch.ClaimsListShardTest.createTestClaimsListShard;
-import static google.registry.testing.JUnitBackports.assertThrows;
+import static google.registry.testing.EppExceptionSubject.assertAboutEppExceptions;
+import static google.registry.testing.JUnitBackports.expectThrows;
 import static google.registry.testing.LogsSubject.assertAboutLogs;
 import static google.registry.testing.TaskQueueHelper.assertTasksEnqueued;
 
@@ -132,7 +133,8 @@ public abstract class ResourceFlowTestCase<F extends Flow, R extends EppResource
   @Test
   public void testRequiresLogin() throws Exception {
     sessionMetadata.setClientId(null);
-    assertThrows(NotLoggedInException.class, this::runFlow);
+    EppException thrown = expectThrows(NotLoggedInException.class, this::runFlow);
+    assertAboutEppExceptions().that(thrown).marshalsToXml();
   }
 
   /**

javatests/google/registry/flows/contact/ContactCheckFlowTest.java

@@ -17,8 +17,10 @@ package google.registry.flows.contact;
 import static google.registry.model.eppoutput.CheckData.ContactCheck.create;
 import static google.registry.testing.DatastoreHelper.persistActiveContact;
 import static google.registry.testing.DatastoreHelper.persistDeletedContact;
-import static google.registry.testing.JUnitBackports.assertThrows;
+import static google.registry.testing.EppExceptionSubject.assertAboutEppExceptions;
+import static google.registry.testing.JUnitBackports.expectThrows;
 
+import google.registry.flows.EppException;
 import google.registry.flows.ResourceCheckFlowTestCase;
 import google.registry.flows.exceptions.TooManyResourceChecksException;
 import google.registry.model.contact.ContactResource;
@@ -77,7 +79,8 @@ public class ContactCheckFlowTest
   @Test
   public void testTooManyIds() throws Exception {
     setEppInput("contact_check_51.xml");
-    assertThrows(TooManyResourceChecksException.class, this::runFlow);
+    EppException thrown = expectThrows(TooManyResourceChecksException.class, this::runFlow);
+    assertAboutEppExceptions().that(thrown).marshalsToXml();
   }
 
   @Test

javatests/google/registry/flows/contact/ContactCreateFlowTest.java

@@ -19,9 +19,10 @@ import static google.registry.testing.ContactResourceSubject.assertAboutContacts
 import static google.registry.testing.DatastoreHelper.assertNoBillingEvents;
 import static google.registry.testing.DatastoreHelper.persistActiveContact;
 import static google.registry.testing.DatastoreHelper.persistDeletedContact;
-import static google.registry.testing.JUnitBackports.assertThrows;
+import static google.registry.testing.EppExceptionSubject.assertAboutEppExceptions;
 import static google.registry.testing.JUnitBackports.expectThrows;
 
+import google.registry.flows.EppException;
 import google.registry.flows.ResourceFlowTestCase;
 import google.registry.flows.contact.ContactFlowUtils.BadInternationalizedPostalInfoException;
 import google.registry.flows.contact.ContactFlowUtils.DeclineContactDisclosureFieldDisallowedPolicyException;
@@ -75,6 +76,7 @@ public class ContactCreateFlowTest
         .hasMessageThat()
         .contains(
             String.format("Object with given ID (%s) already exists", getUniqueIdFromCommand()));
+    assertAboutEppExceptions().that(thrown).marshalsToXml();
   }
 
   @Test
@@ -86,13 +88,17 @@ public class ContactCreateFlowTest
   @Test
   public void testFailure_nonAsciiInIntAddress() throws Exception {
     setEppInput("contact_create_hebrew_int.xml");
-    assertThrows(BadInternationalizedPostalInfoException.class, this::runFlow);
+    EppException thrown =
+        expectThrows(BadInternationalizedPostalInfoException.class, this::runFlow);
+    assertAboutEppExceptions().that(thrown).marshalsToXml();
   }
 
   @Test
   public void testFailure_declineDisclosure() throws Exception {
     setEppInput("contact_create_decline_disclosure.xml");
-    assertThrows(DeclineContactDisclosureFieldDisallowedPolicyException.class, this::runFlow);
+    EppException thrown =
+        expectThrows(DeclineContactDisclosureFieldDisallowedPolicyException.class, this::runFlow);
+    assertAboutEppExceptions().that(thrown).marshalsToXml();
   }
 
   @Test

javatests/google/registry/flows/contact/ContactDeleteFlowTest.java

@@ -23,10 +23,11 @@ import static google.registry.testing.DatastoreHelper.newDomainResource;
 import static google.registry.testing.DatastoreHelper.persistActiveContact;
 import static google.registry.testing.DatastoreHelper.persistDeletedContact;
 import static google.registry.testing.DatastoreHelper.persistResource;
-import static google.registry.testing.JUnitBackports.assertThrows;
+import static google.registry.testing.EppExceptionSubject.assertAboutEppExceptions;
 import static google.registry.testing.JUnitBackports.expectThrows;
 
 import com.google.common.collect.ImmutableSet;
+import google.registry.flows.EppException;
 import google.registry.flows.ResourceFlowTestCase;
 import google.registry.flows.ResourceFlowUtils.ResourceDoesNotExistException;
 import google.registry.flows.ResourceFlowUtils.ResourceNotOwnedException;
@@ -75,6 +76,7 @@ public class ContactDeleteFlowTest
     ResourceDoesNotExistException thrown =
         expectThrows(ResourceDoesNotExistException.class, this::runFlow);
     assertThat(thrown).hasMessageThat().contains(String.format("(%s)", getUniqueIdFromCommand()));
+    assertAboutEppExceptions().that(thrown).marshalsToXml();
   }
 
   @Test
@@ -83,6 +85,7 @@ public class ContactDeleteFlowTest
     ResourceDoesNotExistException thrown =
         expectThrows(ResourceDoesNotExistException.class, this::runFlow);
     assertThat(thrown).hasMessageThat().contains(String.format("(%s)", getUniqueIdFromCommand()));
+    assertAboutEppExceptions().that(thrown).marshalsToXml();
   }
 
   @Test
@@ -103,21 +106,23 @@ public class ContactDeleteFlowTest
         StatusValue.PENDING_DELETE, ResourceStatusProhibitsOperationException.class);
   }
 
-  private void doFailingStatusTest(StatusValue statusValue, Class<? extends Exception> exception)
+  private void doFailingStatusTest(StatusValue statusValue, Class<? extends EppException> exception)
       throws Exception {
     persistResource(
         newContactResource(getUniqueIdFromCommand()).asBuilder()
             .setStatusValues(ImmutableSet.of(statusValue))
             .build());
-    Exception e = expectThrows(exception, this::runFlow);
+    EppException thrown = expectThrows(exception, this::runFlow);
-    assertThat(e).hasMessageThat().contains(statusValue.getXmlName());
+    assertThat(thrown).hasMessageThat().contains(statusValue.getXmlName());
+    assertAboutEppExceptions().that(thrown).marshalsToXml();
   }
 
   @Test
   public void testFailure_unauthorizedClient() throws Exception {
     sessionMetadata.setClientId("NewRegistrar");
     persistActiveContact(getUniqueIdFromCommand());
-    assertThrows(ResourceNotOwnedException.class, this::runFlow);
+    EppException thrown = expectThrows(ResourceNotOwnedException.class, this::runFlow);
+    assertAboutEppExceptions().that(thrown).marshalsToXml();
   }
 
   @Test
@@ -131,7 +136,8 @@ public class ContactDeleteFlowTest
     assertAboutContacts().that(deletedContact).hasStatusValue(StatusValue.PENDING_DELETE);
     assertAsyncDeletionTaskEnqueued(
         deletedContact, "NewRegistrar", Trid.create("ABC-12345", "server-trid"), true);
-    assertAboutContacts().that(deletedContact)
+    assertAboutContacts()
+        .that(deletedContact)
         .hasOnlyOneHistoryEntryWhich()
         .hasType(HistoryEntry.Type.CONTACT_PENDING_DELETE);
     assertNoBillingEvents();
@@ -142,7 +148,8 @@ public class ContactDeleteFlowTest
     createTld("tld");
     persistResource(
         newDomainResource("example.tld", persistActiveContact(getUniqueIdFromCommand())));
-    assertThrows(ResourceToDeleteIsReferencedException.class, this::runFlow);
+    EppException thrown = expectThrows(ResourceToDeleteIsReferencedException.class, this::runFlow);
+    assertAboutEppExceptions().that(thrown).marshalsToXml();
   }
 
   @Test
@@ -150,7 +157,8 @@ public class ContactDeleteFlowTest
     createTld("tld");
     persistResource(
         newDomainResource("example.tld", persistActiveContact(getUniqueIdFromCommand())));
-    assertThrows(ResourceToDeleteIsReferencedException.class, this::runFlow);
+    EppException thrown = expectThrows(ResourceToDeleteIsReferencedException.class, this::runFlow);
+    assertAboutEppExceptions().that(thrown).marshalsToXml();
   }
 
   @Test

javatests/google/registry/flows/contact/ContactInfoFlowTest.java

@@ -20,6 +20,7 @@ import static google.registry.testing.DatastoreHelper.assertNoBillingEvents;
 import static google.registry.testing.DatastoreHelper.createTld;
 import static google.registry.testing.DatastoreHelper.newDomainResource;
 import static google.registry.testing.DatastoreHelper.persistResource;
+import static google.registry.testing.EppExceptionSubject.assertAboutEppExceptions;
 import static google.registry.testing.JUnitBackports.expectThrows;
 
 import com.google.common.collect.ImmutableList;
@@ -167,6 +168,7 @@ public class ContactInfoFlowTest extends ResourceFlowTestCase<ContactInfoFlow, C
     ResourceDoesNotExistException thrown =
         expectThrows(ResourceDoesNotExistException.class, this::runFlow);
     assertThat(thrown).hasMessageThat().contains(String.format("(%s)", getUniqueIdFromCommand()));
+    assertAboutEppExceptions().that(thrown).marshalsToXml();
   }
 
   @Test
@@ -175,6 +177,7 @@ public class ContactInfoFlowTest extends ResourceFlowTestCase<ContactInfoFlow, C
     ResourceDoesNotExistException thrown =
         expectThrows(ResourceDoesNotExistException.class, this::runFlow);
     assertThat(thrown).hasMessageThat().contains(String.format("(%s)", getUniqueIdFromCommand()));
+    assertAboutEppExceptions().that(thrown).marshalsToXml();
   }
 
   @Test

javatests/google/registry/flows/contact/ContactTransferApproveFlowTest.java

@@ -23,9 +23,10 @@ import static google.registry.testing.DatastoreHelper.deleteResource;
 import static google.registry.testing.DatastoreHelper.getOnlyPollMessage;
 import static google.registry.testing.DatastoreHelper.getPollMessages;
 import static google.registry.testing.DatastoreHelper.persistResource;
-import static google.registry.testing.JUnitBackports.assertThrows;
+import static google.registry.testing.EppExceptionSubject.assertAboutEppExceptions;
 import static google.registry.testing.JUnitBackports.expectThrows;
 
+import google.registry.flows.EppException;
 import google.registry.flows.ResourceFlowUtils.BadAuthInfoForResourceException;
 import google.registry.flows.ResourceFlowUtils.ResourceDoesNotExistException;
 import google.registry.flows.ResourceFlowUtils.ResourceNotOwnedException;
@@ -144,65 +145,82 @@ public class ContactTransferApproveFlowTest
         contact.asBuilder()
             .setAuthInfo(ContactAuthInfo.create(PasswordAuth.create("badpassword")))
             .build());
-    assertThrows(
+    EppException thrown = expectThrows(
         BadAuthInfoForResourceException.class,
         () -> doFailingTest("contact_transfer_approve_with_authinfo.xml"));
+    assertAboutEppExceptions().that(thrown).marshalsToXml();
   }
 
   @Test
   public void testFailure_neverBeenTransferred() throws Exception {
     changeTransferStatus(null);
-    assertThrows(
+    EppException thrown =
-        NotPendingTransferException.class, () -> doFailingTest("contact_transfer_approve.xml"));
+        expectThrows(
+            NotPendingTransferException.class, () -> doFailingTest("contact_transfer_approve.xml"));
+    assertAboutEppExceptions().that(thrown).marshalsToXml();
   }
 
   @Test
   public void testFailure_clientApproved() throws Exception {
     changeTransferStatus(TransferStatus.CLIENT_APPROVED);
-    assertThrows(
+    EppException thrown =
-        NotPendingTransferException.class, () -> doFailingTest("contact_transfer_approve.xml"));
+        expectThrows(
+            NotPendingTransferException.class, () -> doFailingTest("contact_transfer_approve.xml"));
+    assertAboutEppExceptions().that(thrown).marshalsToXml();
   }
 
- @Test
+  @Test
   public void testFailure_clientRejected() throws Exception {
     changeTransferStatus(TransferStatus.CLIENT_REJECTED);
-    assertThrows(
+    EppException thrown =
-        NotPendingTransferException.class, () -> doFailingTest("contact_transfer_approve.xml"));
+        expectThrows(
+            NotPendingTransferException.class, () -> doFailingTest("contact_transfer_approve.xml"));
+    assertAboutEppExceptions().that(thrown).marshalsToXml();
   }
 
- @Test
+  @Test
   public void testFailure_clientCancelled() throws Exception {
     changeTransferStatus(TransferStatus.CLIENT_CANCELLED);
-    assertThrows(
+    EppException thrown =
-        NotPendingTransferException.class, () -> doFailingTest("contact_transfer_approve.xml"));
+        expectThrows(
+            NotPendingTransferException.class, () -> doFailingTest("contact_transfer_approve.xml"));
+    assertAboutEppExceptions().that(thrown).marshalsToXml();
   }
 
   @Test
   public void testFailure_serverApproved() throws Exception {
     changeTransferStatus(TransferStatus.SERVER_APPROVED);
-    assertThrows(
+    EppException thrown =
-        NotPendingTransferException.class, () -> doFailingTest("contact_transfer_approve.xml"));
+        expectThrows(
+            NotPendingTransferException.class, () -> doFailingTest("contact_transfer_approve.xml"));
+    assertAboutEppExceptions().that(thrown).marshalsToXml();
   }
 
   @Test
   public void testFailure_serverCancelled() throws Exception {
     changeTransferStatus(TransferStatus.SERVER_CANCELLED);
-    assertThrows(
+    EppException thrown =
-        NotPendingTransferException.class, () -> doFailingTest("contact_transfer_approve.xml"));
+        expectThrows(
+            NotPendingTransferException.class, () -> doFailingTest("contact_transfer_approve.xml"));
+    assertAboutEppExceptions().that(thrown).marshalsToXml();
   }
 
   @Test
   public void testFailure_gainingClient() throws Exception {
     setClientIdForFlow("NewRegistrar");
-    assertThrows(
+    EppException thrown =
-        ResourceNotOwnedException.class, () -> doFailingTest("contact_transfer_approve.xml"));
+        expectThrows(
+            ResourceNotOwnedException.class, () -> doFailingTest("contact_transfer_approve.xml"));
+    assertAboutEppExceptions().that(thrown).marshalsToXml();
   }
 
   @Test
   public void testFailure_unrelatedClient() throws Exception {
     setClientIdForFlow("ClientZ");
-    assertThrows(
+    EppException thrown =
-        ResourceNotOwnedException.class, () -> doFailingTest("contact_transfer_approve.xml"));
+        expectThrows(
+            ResourceNotOwnedException.class, () -> doFailingTest("contact_transfer_approve.xml"));
+    assertAboutEppExceptions().that(thrown).marshalsToXml();
   }
 
   @Test
@@ -214,6 +232,7 @@ public class ContactTransferApproveFlowTest
             ResourceDoesNotExistException.class,
             () -> doFailingTest("contact_transfer_approve.xml"));
     assertThat(thrown).hasMessageThat().contains(String.format("(%s)", getUniqueIdFromCommand()));
+    assertAboutEppExceptions().that(thrown).marshalsToXml();
   }
 
   @Test
@@ -226,6 +245,7 @@ public class ContactTransferApproveFlowTest
             ResourceDoesNotExistException.class,
             () -> doFailingTest("contact_transfer_approve.xml"));
     assertThat(thrown).hasMessageThat().contains(String.format("(%s)", getUniqueIdFromCommand()));
+    assertAboutEppExceptions().that(thrown).marshalsToXml();
   }
 
   @Test

javatests/google/registry/flows/contact/ContactTransferCancelFlowTest.java

@@ -22,9 +22,10 @@ import static google.registry.testing.DatastoreHelper.deleteResource;
 import static google.registry.testing.DatastoreHelper.getOnlyPollMessage;
 import static google.registry.testing.DatastoreHelper.getPollMessages;
 import static google.registry.testing.DatastoreHelper.persistResource;
-import static google.registry.testing.JUnitBackports.assertThrows;
+import static google.registry.testing.EppExceptionSubject.assertAboutEppExceptions;
 import static google.registry.testing.JUnitBackports.expectThrows;
 
+import google.registry.flows.EppException;
 import google.registry.flows.ResourceFlowUtils.BadAuthInfoForResourceException;
 import google.registry.flows.ResourceFlowUtils.ResourceDoesNotExistException;
 import google.registry.flows.exceptions.NotPendingTransferException;
@@ -124,80 +125,103 @@ public class ContactTransferCancelFlowTest
   @Test
   public void testFailure_badContactPassword() throws Exception {
     // Change the contact's password so it does not match the password in the file.
-    contact = persistResource(
+    contact =
-        contact.asBuilder()
+        persistResource(
-            .setAuthInfo(ContactAuthInfo.create(PasswordAuth.create("badpassword")))
+            contact
-            .build());
+                .asBuilder()
-    assertThrows(
+                .setAuthInfo(ContactAuthInfo.create(PasswordAuth.create("badpassword")))
-        BadAuthInfoForResourceException.class,
+                .build());
-        () -> doFailingTest("contact_transfer_cancel_with_authinfo.xml"));
+    EppException thrown =
+        expectThrows(
+            BadAuthInfoForResourceException.class,
+            () -> doFailingTest("contact_transfer_cancel_with_authinfo.xml"));
+    assertAboutEppExceptions().that(thrown).marshalsToXml();
   }
 
   @Test
   public void testFailure_neverBeenTransferred() throws Exception {
     changeTransferStatus(null);
-    assertThrows(
+    EppException thrown =
-        NotPendingTransferException.class, () -> doFailingTest("contact_transfer_cancel.xml"));
+        expectThrows(
+            NotPendingTransferException.class, () -> doFailingTest("contact_transfer_cancel.xml"));
+    assertAboutEppExceptions().that(thrown).marshalsToXml();
   }
 
   @Test
   public void testFailure_clientApproved() throws Exception {
     changeTransferStatus(TransferStatus.CLIENT_APPROVED);
-    assertThrows(
+    EppException thrown =
-        NotPendingTransferException.class, () -> doFailingTest("contact_transfer_cancel.xml"));
+        expectThrows(
+            NotPendingTransferException.class, () -> doFailingTest("contact_transfer_cancel.xml"));
+    assertAboutEppExceptions().that(thrown).marshalsToXml();
   }
 
- @Test
+  @Test
   public void testFailure_clientRejected() throws Exception {
     changeTransferStatus(TransferStatus.CLIENT_REJECTED);
-    assertThrows(
+    EppException thrown =
-        NotPendingTransferException.class, () -> doFailingTest("contact_transfer_cancel.xml"));
+        expectThrows(
+            NotPendingTransferException.class, () -> doFailingTest("contact_transfer_cancel.xml"));
+    assertAboutEppExceptions().that(thrown).marshalsToXml();
   }
 
- @Test
+  @Test
   public void testFailure_clientCancelled() throws Exception {
     changeTransferStatus(TransferStatus.CLIENT_CANCELLED);
-    assertThrows(
+    EppException thrown =
-        NotPendingTransferException.class, () -> doFailingTest("contact_transfer_cancel.xml"));
+        expectThrows(
+            NotPendingTransferException.class, () -> doFailingTest("contact_transfer_cancel.xml"));
+    assertAboutEppExceptions().that(thrown).marshalsToXml();
   }
 
   @Test
   public void testFailure_serverApproved() throws Exception {
     changeTransferStatus(TransferStatus.SERVER_APPROVED);
-    assertThrows(
+    EppException thrown =
-        NotPendingTransferException.class, () -> doFailingTest("contact_transfer_cancel.xml"));
+        expectThrows(
+            NotPendingTransferException.class, () -> doFailingTest("contact_transfer_cancel.xml"));
+    assertAboutEppExceptions().that(thrown).marshalsToXml();
   }
 
   @Test
   public void testFailure_serverCancelled() throws Exception {
     changeTransferStatus(TransferStatus.SERVER_CANCELLED);
-    assertThrows(
+    EppException thrown =
-        NotPendingTransferException.class, () -> doFailingTest("contact_transfer_cancel.xml"));
+        expectThrows(
+            NotPendingTransferException.class, () -> doFailingTest("contact_transfer_cancel.xml"));
+    assertAboutEppExceptions().that(thrown).marshalsToXml();
   }
 
   @Test
   public void testFailure_sponsoringClient() throws Exception {
     setClientIdForFlow("TheRegistrar");
-    assertThrows(
+    EppException thrown =
-        NotTransferInitiatorException.class, () -> doFailingTest("contact_transfer_cancel.xml"));
+        expectThrows(
+            NotTransferInitiatorException.class,
+            () -> doFailingTest("contact_transfer_cancel.xml"));
+    assertAboutEppExceptions().that(thrown).marshalsToXml();
   }
 
   @Test
   public void testFailure_unrelatedClient() throws Exception {
     setClientIdForFlow("ClientZ");
-    assertThrows(
+    EppException thrown =
-        NotTransferInitiatorException.class, () -> doFailingTest("contact_transfer_cancel.xml"));
+        expectThrows(
+            NotTransferInitiatorException.class,
+            () -> doFailingTest("contact_transfer_cancel.xml"));
+    assertAboutEppExceptions().that(thrown).marshalsToXml();
   }
 
   @Test
   public void testFailure_deletedContact() throws Exception {
-    contact = persistResource(
+    contact =
-        contact.asBuilder().setDeletionTime(clock.nowUtc().minusDays(1)).build());
+        persistResource(contact.asBuilder().setDeletionTime(clock.nowUtc().minusDays(1)).build());
     ResourceDoesNotExistException thrown =
         expectThrows(
             ResourceDoesNotExistException.class,
             () -> doFailingTest("contact_transfer_cancel.xml"));
     assertThat(thrown).hasMessageThat().contains(String.format("(%s)", getUniqueIdFromCommand()));
+    assertAboutEppExceptions().that(thrown).marshalsToXml();
   }
 
   @Test
@@ -208,6 +232,7 @@ public class ContactTransferCancelFlowTest
             ResourceDoesNotExistException.class,
             () -> doFailingTest("contact_transfer_cancel.xml"));
     assertThat(thrown).hasMessageThat().contains(String.format("(%s)", getUniqueIdFromCommand()));
+    assertAboutEppExceptions().that(thrown).marshalsToXml();
   }
 
   @Test

javatests/google/registry/flows/contact/ContactTransferQueryFlowTest.java

@@ -19,9 +19,10 @@ import static google.registry.testing.ContactResourceSubject.assertAboutContacts
 import static google.registry.testing.DatastoreHelper.assertNoBillingEvents;
 import static google.registry.testing.DatastoreHelper.deleteResource;
 import static google.registry.testing.DatastoreHelper.persistResource;
-import static google.registry.testing.JUnitBackports.assertThrows;
+import static google.registry.testing.EppExceptionSubject.assertAboutEppExceptions;
 import static google.registry.testing.JUnitBackports.expectThrows;
 
+import google.registry.flows.EppException;
 import google.registry.flows.ResourceFlowUtils.BadAuthInfoForResourceException;
 import google.registry.flows.ResourceFlowUtils.ResourceDoesNotExistException;
 import google.registry.flows.exceptions.NoTransferHistoryToQueryException;
@@ -137,13 +138,17 @@ public class ContactTransferQueryFlowTest
   @Test
   public void testFailure_badContactPassword() throws Exception {
     // Change the contact's password so it does not match the password in the file.
-    contact = persistResource(
+    contact =
-        contact.asBuilder()
+        persistResource(
-            .setAuthInfo(ContactAuthInfo.create(PasswordAuth.create("badpassword")))
+            contact
-            .build());
+                .asBuilder()
-    assertThrows(
+                .setAuthInfo(ContactAuthInfo.create(PasswordAuth.create("badpassword")))
-        BadAuthInfoForResourceException.class,
+                .build());
-        () -> doFailingTest("contact_transfer_query_with_authinfo.xml"));
+    EppException thrown =
+        expectThrows(
+            BadAuthInfoForResourceException.class,
+            () -> doFailingTest("contact_transfer_query_with_authinfo.xml"));
+    assertAboutEppExceptions().that(thrown).marshalsToXml();
   }
 
   @Test
@@ -151,34 +156,42 @@ public class ContactTransferQueryFlowTest
     // Set the contact to a different ROID, but don't persist it; this is just so the substitution
     // code above will write the wrong ROID into the file.
     contact = contact.asBuilder().setRepoId("DEADBEEF_TLD-ROID").build();
-    assertThrows(
+    EppException thrown =
-        BadAuthInfoForResourceException.class,
+        expectThrows(
-        () -> doFailingTest("contact_transfer_query_with_roid.xml"));
+            BadAuthInfoForResourceException.class,
+            () -> doFailingTest("contact_transfer_query_with_roid.xml"));
+    assertAboutEppExceptions().that(thrown).marshalsToXml();
   }
 
   @Test
   public void testFailure_neverBeenTransferred() throws Exception {
     changeTransferStatus(null);
-    assertThrows(
+    EppException thrown =
-        NoTransferHistoryToQueryException.class, () -> doFailingTest("contact_transfer_query.xml"));
+        expectThrows(
+            NoTransferHistoryToQueryException.class,
+            () -> doFailingTest("contact_transfer_query.xml"));
+    assertAboutEppExceptions().that(thrown).marshalsToXml();
   }
 
   @Test
   public void testFailure_unrelatedClient() throws Exception {
     setClientIdForFlow("ClientZ");
-    assertThrows(
+    EppException thrown =
-        NotAuthorizedToViewTransferException.class,
+        expectThrows(
-        () -> doFailingTest("contact_transfer_query.xml"));
+            NotAuthorizedToViewTransferException.class,
+            () -> doFailingTest("contact_transfer_query.xml"));
+    assertAboutEppExceptions().that(thrown).marshalsToXml();
   }
 
   @Test
   public void testFailure_deletedContact() throws Exception {
-    contact = persistResource(
+    contact =
-        contact.asBuilder().setDeletionTime(clock.nowUtc().minusDays(1)).build());
+        persistResource(contact.asBuilder().setDeletionTime(clock.nowUtc().minusDays(1)).build());
     ResourceDoesNotExistException thrown =
         expectThrows(
             ResourceDoesNotExistException.class, () -> doFailingTest("contact_transfer_query.xml"));
     assertThat(thrown).hasMessageThat().contains(String.format("(%s)", getUniqueIdFromCommand()));
+    assertAboutEppExceptions().that(thrown).marshalsToXml();
   }
 
   @Test
@@ -188,6 +201,7 @@ public class ContactTransferQueryFlowTest
         expectThrows(
             ResourceDoesNotExistException.class, () -> doFailingTest("contact_transfer_query.xml"));
     assertThat(thrown).hasMessageThat().contains(String.format("(%s)", getUniqueIdFromCommand()));
+    assertAboutEppExceptions().that(thrown).marshalsToXml();
   }
 
   @Test

javatests/google/registry/flows/contact/ContactTransferRejectFlowTest.java

@@ -22,9 +22,10 @@ import static google.registry.testing.DatastoreHelper.deleteResource;
 import static google.registry.testing.DatastoreHelper.getOnlyPollMessage;
 import static google.registry.testing.DatastoreHelper.getPollMessages;
 import static google.registry.testing.DatastoreHelper.persistResource;
-import static google.registry.testing.JUnitBackports.assertThrows;
+import static google.registry.testing.EppExceptionSubject.assertAboutEppExceptions;
 import static google.registry.testing.JUnitBackports.expectThrows;
 
+import google.registry.flows.EppException;
 import google.registry.flows.ResourceFlowUtils.BadAuthInfoForResourceException;
 import google.registry.flows.ResourceFlowUtils.ResourceDoesNotExistException;
 import google.registry.flows.ResourceFlowUtils.ResourceNotOwnedException;
@@ -139,80 +140,101 @@ public class ContactTransferRejectFlowTest
   @Test
   public void testFailure_badPassword() throws Exception {
     // Change the contact's password so it does not match the password in the file.
-    contact = persistResource(
+    contact =
-        contact.asBuilder()
+        persistResource(
-            .setAuthInfo(ContactAuthInfo.create(PasswordAuth.create("badpassword")))
+            contact
-            .build());
+                .asBuilder()
-    assertThrows(
+                .setAuthInfo(ContactAuthInfo.create(PasswordAuth.create("badpassword")))
-        BadAuthInfoForResourceException.class,
+                .build());
-        () -> doFailingTest("contact_transfer_reject_with_authinfo.xml"));
+    EppException thrown =
+        expectThrows(
+            BadAuthInfoForResourceException.class,
+            () -> doFailingTest("contact_transfer_reject_with_authinfo.xml"));
+    assertAboutEppExceptions().that(thrown).marshalsToXml();
   }
 
   @Test
   public void testFailure_neverBeenTransferred() throws Exception {
     changeTransferStatus(null);
-    assertThrows(
+    EppException thrown =
-        NotPendingTransferException.class, () -> doFailingTest("contact_transfer_reject.xml"));
+        expectThrows(
+            NotPendingTransferException.class, () -> doFailingTest("contact_transfer_reject.xml"));
+    assertAboutEppExceptions().that(thrown).marshalsToXml();
   }
 
   @Test
   public void testFailure_clientApproved() throws Exception {
     changeTransferStatus(TransferStatus.CLIENT_APPROVED);
-    assertThrows(
+    EppException thrown =
-        NotPendingTransferException.class, () -> doFailingTest("contact_transfer_reject.xml"));
+        expectThrows(
+            NotPendingTransferException.class, () -> doFailingTest("contact_transfer_reject.xml"));
+    assertAboutEppExceptions().that(thrown).marshalsToXml();
   }
 
- @Test
+  @Test
   public void testFailure_clientRejected() throws Exception {
     changeTransferStatus(TransferStatus.CLIENT_REJECTED);
-    assertThrows(
+    EppException thrown =
-        NotPendingTransferException.class, () -> doFailingTest("contact_transfer_reject.xml"));
+        expectThrows(
+            NotPendingTransferException.class, () -> doFailingTest("contact_transfer_reject.xml"));
+    assertAboutEppExceptions().that(thrown).marshalsToXml();
   }
 
- @Test
+  @Test
   public void testFailure_clientCancelled() throws Exception {
     changeTransferStatus(TransferStatus.CLIENT_CANCELLED);
-    assertThrows(
+    EppException thrown =
-        NotPendingTransferException.class, () -> doFailingTest("contact_transfer_reject.xml"));
+        expectThrows(
+            NotPendingTransferException.class, () -> doFailingTest("contact_transfer_reject.xml"));
+    assertAboutEppExceptions().that(thrown).marshalsToXml();
   }
 
   @Test
   public void testFailure_serverApproved() throws Exception {
     changeTransferStatus(TransferStatus.SERVER_APPROVED);
-    assertThrows(
+    EppException thrown =
-        NotPendingTransferException.class, () -> doFailingTest("contact_transfer_reject.xml"));
+        expectThrows(
+            NotPendingTransferException.class, () -> doFailingTest("contact_transfer_reject.xml"));
+    assertAboutEppExceptions().that(thrown).marshalsToXml();
   }
 
   @Test
   public void testFailure_serverCancelled() throws Exception {
     changeTransferStatus(TransferStatus.SERVER_CANCELLED);
-    assertThrows(
+    EppException thrown =
-        NotPendingTransferException.class, () -> doFailingTest("contact_transfer_reject.xml"));
+        expectThrows(
+            NotPendingTransferException.class, () -> doFailingTest("contact_transfer_reject.xml"));
+    assertAboutEppExceptions().that(thrown).marshalsToXml();
   }
 
   @Test
   public void testFailure_gainingClient() throws Exception {
     setClientIdForFlow("NewRegistrar");
-    assertThrows(
+    EppException thrown =
-        ResourceNotOwnedException.class, () -> doFailingTest("contact_transfer_reject.xml"));
+        expectThrows(
+            ResourceNotOwnedException.class, () -> doFailingTest("contact_transfer_reject.xml"));
+    assertAboutEppExceptions().that(thrown).marshalsToXml();
   }
 
   @Test
   public void testFailure_unrelatedClient() throws Exception {
     setClientIdForFlow("ClientZ");
-    assertThrows(
+    EppException thrown =
-        ResourceNotOwnedException.class, () -> doFailingTest("contact_transfer_reject.xml"));
+        expectThrows(
+            ResourceNotOwnedException.class, () -> doFailingTest("contact_transfer_reject.xml"));
+    assertAboutEppExceptions().that(thrown).marshalsToXml();
   }
 
   @Test
   public void testFailure_deletedContact() throws Exception {
-    contact = persistResource(
+    contact =
-        contact.asBuilder().setDeletionTime(clock.nowUtc().minusDays(1)).build());
+        persistResource(contact.asBuilder().setDeletionTime(clock.nowUtc().minusDays(1)).build());
     ResourceDoesNotExistException thrown =
         expectThrows(
             ResourceDoesNotExistException.class,
             () -> doFailingTest("contact_transfer_reject.xml"));
     assertThat(thrown).hasMessageThat().contains(String.format("(%s)", getUniqueIdFromCommand()));
+    assertAboutEppExceptions().that(thrown).marshalsToXml();
   }
 
   @Test
@@ -223,6 +245,7 @@ public class ContactTransferRejectFlowTest
             ResourceDoesNotExistException.class,
             () -> doFailingTest("contact_transfer_reject.xml"));
     assertThat(thrown).hasMessageThat().contains(String.format("(%s)", getUniqueIdFromCommand()));
+    assertAboutEppExceptions().that(thrown).marshalsToXml();
   }
 
   @Test

javatests/google/registry/flows/contact/ContactTransferRequestFlowTest.java

@@ -28,12 +28,13 @@ import static google.registry.testing.DatastoreHelper.deleteResource;
 import static google.registry.testing.DatastoreHelper.getPollMessages;
 import static google.registry.testing.DatastoreHelper.persistActiveContact;
 import static google.registry.testing.DatastoreHelper.persistResource;
-import static google.registry.testing.JUnitBackports.assertThrows;
+import static google.registry.testing.EppExceptionSubject.assertAboutEppExceptions;
 import static google.registry.testing.JUnitBackports.expectThrows;
 
 import com.google.common.collect.ImmutableList;
 import com.google.common.collect.Iterables;
 import com.googlecode.objectify.Key;
+import google.registry.flows.EppException;
 import google.registry.flows.ResourceFlowUtils.BadAuthInfoForResourceException;
 import google.registry.flows.ResourceFlowUtils.ResourceDoesNotExistException;
 import google.registry.flows.exceptions.AlreadyPendingTransferException;
@@ -156,20 +157,27 @@ public class ContactTransferRequestFlowTest
 
   @Test
   public void testFailure_noAuthInfo() throws Exception {
-    assertThrows(
+    EppException thrown =
-        MissingTransferRequestAuthInfoException.class,
+        expectThrows(
-        () -> doFailingTest("contact_transfer_request_no_authinfo.xml"));
+            MissingTransferRequestAuthInfoException.class,
+            () -> doFailingTest("contact_transfer_request_no_authinfo.xml"));
+    assertAboutEppExceptions().that(thrown).marshalsToXml();
   }
 
   @Test
   public void testFailure_badPassword() throws Exception {
     // Change the contact's password so it does not match the password in the file.
-    contact = persistResource(
+    contact =
-        contact.asBuilder()
+        persistResource(
-            .setAuthInfo(ContactAuthInfo.create(PasswordAuth.create("badpassword")))
+            contact
-            .build());
+                .asBuilder()
-    assertThrows(
+                .setAuthInfo(ContactAuthInfo.create(PasswordAuth.create("badpassword")))
-        BadAuthInfoForResourceException.class, () -> doFailingTest("contact_transfer_request.xml"));
+                .build());
+    EppException thrown =
+        expectThrows(
+            BadAuthInfoForResourceException.class,
+            () -> doFailingTest("contact_transfer_request.xml"));
+    assertAboutEppExceptions().that(thrown).marshalsToXml();
   }
 
   @Test
@@ -178,13 +186,13 @@ public class ContactTransferRequestFlowTest
     doSuccessfulTest("contact_transfer_request.xml", "contact_transfer_request_response.xml");
   }
 
- @Test
+  @Test
   public void testSuccess_clientRejected() throws Exception {
     changeTransferStatus(TransferStatus.CLIENT_REJECTED);
     doSuccessfulTest("contact_transfer_request.xml", "contact_transfer_request_response.xml");
   }
 
- @Test
+  @Test
   public void testSuccess_clientCancelled() throws Exception {
     changeTransferStatus(TransferStatus.CLIENT_CANCELLED);
     doSuccessfulTest("contact_transfer_request.xml", "contact_transfer_request_response.xml");
@@ -204,33 +212,45 @@ public class ContactTransferRequestFlowTest
 
   @Test
   public void testFailure_pending() throws Exception {
-    contact = persistResource(
+    contact =
-        contact.asBuilder()
+        persistResource(
-            .setTransferData(contact.getTransferData().asBuilder()
+            contact
-                .setTransferStatus(TransferStatus.PENDING)
+                .asBuilder()
-                .setPendingTransferExpirationTime(clock.nowUtc().plusDays(1))
+                .setTransferData(
-                .build())
+                    contact
-            .build());
+                        .getTransferData()
-    assertThrows(
+                        .asBuilder()
-        AlreadyPendingTransferException.class, () -> doFailingTest("contact_transfer_request.xml"));
+                        .setTransferStatus(TransferStatus.PENDING)
+                        .setPendingTransferExpirationTime(clock.nowUtc().plusDays(1))
+                        .build())
+                .build());
+    EppException thrown =
+        expectThrows(
+            AlreadyPendingTransferException.class,
+            () -> doFailingTest("contact_transfer_request.xml"));
+    assertAboutEppExceptions().that(thrown).marshalsToXml();
   }
 
   @Test
   public void testFailure_sponsoringClient() throws Exception {
     setClientIdForFlow("TheRegistrar");
-    assertThrows(
+    EppException thrown =
-        ObjectAlreadySponsoredException.class, () -> doFailingTest("contact_transfer_request.xml"));
+        expectThrows(
+            ObjectAlreadySponsoredException.class,
+            () -> doFailingTest("contact_transfer_request.xml"));
+    assertAboutEppExceptions().that(thrown).marshalsToXml();
   }
 
   @Test
   public void testFailure_deletedContact() throws Exception {
-    contact = persistResource(
+    contact =
-        contact.asBuilder().setDeletionTime(clock.nowUtc().minusDays(1)).build());
+        persistResource(contact.asBuilder().setDeletionTime(clock.nowUtc().minusDays(1)).build());
     ResourceDoesNotExistException thrown =
         expectThrows(
             ResourceDoesNotExistException.class,
             () -> doFailingTest("contact_transfer_request.xml"));
     assertThat(thrown).hasMessageThat().contains(String.format("(%s)", getUniqueIdFromCommand()));
+    assertAboutEppExceptions().that(thrown).marshalsToXml();
   }
 
   @Test
@@ -241,39 +261,45 @@ public class ContactTransferRequestFlowTest
             ResourceDoesNotExistException.class,
             () -> doFailingTest("contact_transfer_request.xml"));
     assertThat(thrown).hasMessageThat().contains(String.format("(%s)", getUniqueIdFromCommand()));
+    assertAboutEppExceptions().that(thrown).marshalsToXml();
   }
 
   @Test
   public void testFailure_clientTransferProhibited() throws Exception {
-    contact = persistResource(
+    contact =
-        contact.asBuilder().addStatusValue(StatusValue.CLIENT_TRANSFER_PROHIBITED).build());
+        persistResource(
+            contact.asBuilder().addStatusValue(StatusValue.CLIENT_TRANSFER_PROHIBITED).build());
     ResourceStatusProhibitsOperationException thrown =
         expectThrows(
             ResourceStatusProhibitsOperationException.class,
             () -> doFailingTest("contact_transfer_request.xml"));
     assertThat(thrown).hasMessageThat().contains("clientTransferProhibited");
+    assertAboutEppExceptions().that(thrown).marshalsToXml();
   }
 
   @Test
   public void testFailure_serverTransferProhibited() throws Exception {
-    contact = persistResource(
+    contact =
-        contact.asBuilder().addStatusValue(StatusValue.SERVER_TRANSFER_PROHIBITED).build());
+        persistResource(
+            contact.asBuilder().addStatusValue(StatusValue.SERVER_TRANSFER_PROHIBITED).build());
     ResourceStatusProhibitsOperationException thrown =
         expectThrows(
             ResourceStatusProhibitsOperationException.class,
             () -> doFailingTest("contact_transfer_request.xml"));
     assertThat(thrown).hasMessageThat().contains("serverTransferProhibited");
+    assertAboutEppExceptions().that(thrown).marshalsToXml();
   }
 
   @Test
   public void testFailure_pendingDelete() throws Exception {
-    contact = persistResource(
+    contact =
-        contact.asBuilder().addStatusValue(StatusValue.PENDING_DELETE).build());
+        persistResource(contact.asBuilder().addStatusValue(StatusValue.PENDING_DELETE).build());
     ResourceStatusProhibitsOperationException thrown =
         expectThrows(
             ResourceStatusProhibitsOperationException.class,
             () -> doFailingTest("contact_transfer_request.xml"));
     assertThat(thrown).hasMessageThat().contains("pendingDelete");
+    assertAboutEppExceptions().that(thrown).marshalsToXml();
   }
 
   @Test

javatests/google/registry/flows/contact/ContactUpdateFlowTest.java

@@ -21,11 +21,12 @@ import static google.registry.testing.DatastoreHelper.newContactResource;
 import static google.registry.testing.DatastoreHelper.persistActiveContact;
 import static google.registry.testing.DatastoreHelper.persistDeletedContact;
 import static google.registry.testing.DatastoreHelper.persistResource;
-import static google.registry.testing.JUnitBackports.assertThrows;
+import static google.registry.testing.EppExceptionSubject.assertAboutEppExceptions;
 import static google.registry.testing.JUnitBackports.expectThrows;
 
 import com.google.common.collect.ImmutableList;
 import com.google.common.collect.ImmutableSet;
+import google.registry.flows.EppException;
 import google.registry.flows.ResourceFlowTestCase;
 import google.registry.flows.ResourceFlowUtils.AddRemoveSameValueException;
 import google.registry.flows.ResourceFlowUtils.ResourceDoesNotExistException;
@@ -259,6 +260,7 @@ public class ContactUpdateFlowTest
     ResourceDoesNotExistException thrown =
         expectThrows(ResourceDoesNotExistException.class, this::runFlow);
     assertThat(thrown).hasMessageThat().contains(String.format("(%s)", getUniqueIdFromCommand()));
+    assertAboutEppExceptions().that(thrown).marshalsToXml();
   }
 
   @Test
@@ -267,13 +269,15 @@ public class ContactUpdateFlowTest
     ResourceDoesNotExistException thrown =
         expectThrows(ResourceDoesNotExistException.class, this::runFlow);
     assertThat(thrown).hasMessageThat().contains(String.format("(%s)", getUniqueIdFromCommand()));
+    assertAboutEppExceptions().that(thrown).marshalsToXml();
   }
 
   @Test
   public void testFailure_statusValueNotClientSettable() throws Exception {
     setEppInput("contact_update_prohibited_status.xml");
     persistActiveContact(getUniqueIdFromCommand());
-    assertThrows(StatusNotClientSettableException.class, this::runFlow);
+    EppException thrown = expectThrows(StatusNotClientSettableException.class, this::runFlow);
+    assertAboutEppExceptions().that(thrown).marshalsToXml();
   }
 
   @Test
@@ -282,16 +286,15 @@ public class ContactUpdateFlowTest
     persistActiveContact(getUniqueIdFromCommand());
     clock.advanceOneMilli();
     runFlowAssertResponse(
-        CommitMode.LIVE,
+        CommitMode.LIVE, UserPrivileges.SUPERUSER, loadFile("contact_update_response.xml"));
-        UserPrivileges.SUPERUSER,
-        loadFile("contact_update_response.xml"));
   }
 
   @Test
   public void testFailure_unauthorizedClient() throws Exception {
     sessionMetadata.setClientId("NewRegistrar");
     persistActiveContact(getUniqueIdFromCommand());
-    assertThrows(ResourceNotOwnedException.class, this::runFlow);
+    EppException thrown = expectThrows(ResourceNotOwnedException.class, this::runFlow);
+    assertAboutEppExceptions().that(thrown).marshalsToXml();
   }
 
   @Test
@@ -307,11 +310,13 @@ public class ContactUpdateFlowTest
   public void testSuccess_clientUpdateProhibited_removed() throws Exception {
     setEppInput("contact_update_remove_client_update_prohibited.xml");
     persistResource(
-        newContactResource(getUniqueIdFromCommand()).asBuilder()
+        newContactResource(getUniqueIdFromCommand())
+            .asBuilder()
             .setStatusValues(ImmutableSet.of(StatusValue.CLIENT_UPDATE_PROHIBITED))
             .build());
     doSuccessfulTest();
-    assertAboutContacts().that(reloadResourceByForeignKey())
+    assertAboutContacts()
+        .that(reloadResourceByForeignKey())
         .doesNotHaveStatusValue(StatusValue.CLIENT_UPDATE_PROHIBITED);
   }
 
@@ -319,48 +324,56 @@ public class ContactUpdateFlowTest
   public void testSuccess_superuserClientUpdateProhibited_notRemoved() throws Exception {
     setEppInput("contact_update_prohibited_status.xml");
     persistResource(
-        newContactResource(getUniqueIdFromCommand()).asBuilder()
+        newContactResource(getUniqueIdFromCommand())
+            .asBuilder()
             .setStatusValues(ImmutableSet.of(StatusValue.CLIENT_UPDATE_PROHIBITED))
             .build());
     clock.advanceOneMilli();
     runFlowAssertResponse(
-        CommitMode.LIVE,
+        CommitMode.LIVE, UserPrivileges.SUPERUSER, loadFile("contact_update_response.xml"));
-        UserPrivileges.SUPERUSER,
+    assertAboutContacts()
-        loadFile("contact_update_response.xml"));
+        .that(reloadResourceByForeignKey())
-    assertAboutContacts().that(reloadResourceByForeignKey())
+        .hasStatusValue(StatusValue.CLIENT_UPDATE_PROHIBITED)
-        .hasStatusValue(StatusValue.CLIENT_UPDATE_PROHIBITED).and()
+        .and()
         .hasStatusValue(StatusValue.SERVER_DELETE_PROHIBITED);
   }
 
   @Test
   public void testFailure_clientUpdateProhibited_notRemoved() throws Exception {
     persistResource(
-        newContactResource(getUniqueIdFromCommand()).asBuilder()
+        newContactResource(getUniqueIdFromCommand())
+            .asBuilder()
             .setStatusValues(ImmutableSet.of(StatusValue.CLIENT_UPDATE_PROHIBITED))
             .build());
-    assertThrows(ResourceHasClientUpdateProhibitedException.class, this::runFlow);
+    EppException thrown =
+        expectThrows(ResourceHasClientUpdateProhibitedException.class, this::runFlow);
+    assertAboutEppExceptions().that(thrown).marshalsToXml();
   }
 
   @Test
   public void testFailure_serverUpdateProhibited() throws Exception {
     persistResource(
-        newContactResource(getUniqueIdFromCommand()).asBuilder()
+        newContactResource(getUniqueIdFromCommand())
+            .asBuilder()
             .setStatusValues(ImmutableSet.of(StatusValue.SERVER_UPDATE_PROHIBITED))
             .build());
     ResourceStatusProhibitsOperationException thrown =
         expectThrows(ResourceStatusProhibitsOperationException.class, this::runFlow);
     assertThat(thrown).hasMessageThat().contains("serverUpdateProhibited");
+    assertAboutEppExceptions().that(thrown).marshalsToXml();
   }
 
   @Test
   public void testFailure_pendingDeleteProhibited() throws Exception {
     persistResource(
-        newContactResource(getUniqueIdFromCommand()).asBuilder()
+        newContactResource(getUniqueIdFromCommand())
+            .asBuilder()
             .setStatusValues(ImmutableSet.of(StatusValue.PENDING_DELETE))
             .build());
     ResourceStatusProhibitsOperationException thrown =
         expectThrows(ResourceStatusProhibitsOperationException.class, this::runFlow);
     assertThat(thrown).hasMessageThat().contains("pendingDelete");
+    assertAboutEppExceptions().that(thrown).marshalsToXml();
   }
 
   @Test
@@ -373,21 +386,26 @@ public class ContactUpdateFlowTest
   public void testFailure_nonAsciiInIntAddress() throws Exception {
     setEppInput("contact_update_hebrew_int.xml");
     persistActiveContact(getUniqueIdFromCommand());
-    assertThrows(BadInternationalizedPostalInfoException.class, this::runFlow);
+    EppException thrown =
+        expectThrows(BadInternationalizedPostalInfoException.class, this::runFlow);
+    assertAboutEppExceptions().that(thrown).marshalsToXml();
   }
 
   @Test
   public void testFailure_declineDisclosure() throws Exception {
     setEppInput("contact_update_decline_disclosure.xml");
     persistActiveContact(getUniqueIdFromCommand());
-    assertThrows(DeclineContactDisclosureFieldDisallowedPolicyException.class, this::runFlow);
+    EppException thrown =
+        expectThrows(DeclineContactDisclosureFieldDisallowedPolicyException.class, this::runFlow);
+    assertAboutEppExceptions().that(thrown).marshalsToXml();
   }
 
   @Test
   public void testFailure_addRemoveSameValue() throws Exception {
     setEppInput("contact_update_add_remove_same.xml");
     persistActiveContact(getUniqueIdFromCommand());
-    assertThrows(AddRemoveSameValueException.class, this::runFlow);
+    EppException thrown = expectThrows(AddRemoveSameValueException.class, this::runFlow);
+    assertAboutEppExceptions().that(thrown).marshalsToXml();
   }
 
   @Test

javatests/google/registry/flows/domain/DomainAllocateFlowTest.java

@@ -30,7 +30,7 @@ import static google.registry.testing.DatastoreHelper.persistReservedList;
 import static google.registry.testing.DatastoreHelper.persistResource;
 import static google.registry.testing.DomainApplicationSubject.assertAboutApplications;
 import static google.registry.testing.DomainResourceSubject.assertAboutDomains;
-import static google.registry.testing.JUnitBackports.assertThrows;
+import static google.registry.testing.EppExceptionSubject.assertAboutEppExceptions;
 import static google.registry.testing.JUnitBackports.expectThrows;
 import static google.registry.testing.TaskQueueHelper.assertDnsTasksEnqueued;
 import static google.registry.testing.TaskQueueHelper.assertNoDnsTasksEnqueued;
@@ -43,6 +43,7 @@ import com.google.common.collect.ImmutableList;
 import com.google.common.collect.ImmutableMap;
 import com.google.common.collect.ImmutableSet;
 import com.googlecode.objectify.Key;
+import google.registry.flows.EppException;
 import google.registry.flows.ResourceFlowTestCase;
 import google.registry.flows.domain.DomainAllocateFlow.HasFinalStatusException;
 import google.registry.flows.domain.DomainAllocateFlow.MissingApplicationException;
@@ -258,6 +259,7 @@ public class DomainAllocateFlowTest
     NameserversNotAllowedForTldException thrown =
         expectThrows(NameserversNotAllowedForTldException.class, this::runFlowAsSuperuser);
     assertThat(thrown).hasMessageThat().contains("ns1.example.net");
+    assertAboutEppExceptions().that(thrown).marshalsToXml();
   }
 
   @Test
@@ -273,6 +275,7 @@ public class DomainAllocateFlowTest
     RegistrantNotAllowedException thrown =
         expectThrows(RegistrantNotAllowedException.class, this::runFlowAsSuperuser);
     assertThat(thrown).hasMessageThat().contains("jd1234");
+    assertAboutEppExceptions().that(thrown).marshalsToXml();
   }
 
   @Test
@@ -285,9 +288,11 @@ public class DomainAllocateFlowTest
             .setAllowedRegistrantContactIds(ImmutableSet.of("jd1234"))
             .setAllowedFullyQualifiedHostNames(ImmutableSet.of("ns1.example.net, ns2.example.net"))
             .build());
-    assertThrows(
+    EppException thrown =
-        NameserversNotSpecifiedForTldWithNameserverWhitelistException.class,
+        expectThrows(
-        this::runFlowAsSuperuser);
+            NameserversNotSpecifiedForTldWithNameserverWhitelistException.class,
+            this::runFlowAsSuperuser);
+    assertAboutEppExceptions().that(thrown).marshalsToXml();
   }
 
   @Test
@@ -319,6 +324,7 @@ public class DomainAllocateFlowTest
     NameserversNotAllowedForDomainException thrown =
         expectThrows(NameserversNotAllowedForDomainException.class, this::runFlowAsSuperuser);
     assertThat(thrown).hasMessageThat().contains("ns1.example.net");
+    assertAboutEppExceptions().that(thrown).marshalsToXml();
   }
 
   @Test
@@ -333,9 +339,11 @@ public class DomainAllocateFlowTest
                     "reserved",
                     "example-one,NAMESERVER_RESTRICTED," + "ns2.example.net:ns3.example.net"))
             .build());
-    assertThrows(
+    EppException thrown =
-        NameserversNotSpecifiedForNameserverRestrictedDomainException.class,
+        expectThrows(
-        this::runFlowAsSuperuser);
+            NameserversNotSpecifiedForNameserverRestrictedDomainException.class,
+            this::runFlowAsSuperuser);
+    assertAboutEppExceptions().that(thrown).marshalsToXml();
   }
 
   @Test
@@ -373,6 +381,7 @@ public class DomainAllocateFlowTest
     NameserversNotAllowedForDomainException thrown =
         expectThrows(NameserversNotAllowedForDomainException.class, this::runFlowAsSuperuser);
     assertThat(thrown).hasMessageThat().contains("ns1.example.net");
+    assertAboutEppExceptions().that(thrown).marshalsToXml();
   }
 
   @Test
@@ -392,6 +401,7 @@ public class DomainAllocateFlowTest
     NameserversNotAllowedForTldException thrown =
         expectThrows(NameserversNotAllowedForTldException.class, this::runFlowAsSuperuser);
     assertThat(thrown).hasMessageThat().contains("ns1.example.net");
+    assertAboutEppExceptions().that(thrown).marshalsToXml();
   }
 
   @Test
@@ -404,18 +414,22 @@ public class DomainAllocateFlowTest
   @Test
   public void testSuccess_nonDefaultAddGracePeriod() throws Exception {
     setupDomainApplication("tld", TldState.QUIET_PERIOD);
-    persistResource(Registry.get("tld").asBuilder()
+    persistResource(
-        .setAddGracePeriodLength(Duration.standardMinutes(6))
+        Registry.get("tld")
-        .build());
+            .asBuilder()
+            .setAddGracePeriodLength(Duration.standardMinutes(6))
+            .build());
     doSuccessfulTest(2);
   }
 
   @Test
   public void testSuccess_nonDefaultSunrushAddGracePeriod() throws Exception {
     setupDomainApplication("tld", TldState.QUIET_PERIOD);
-    persistResource(Registry.get("tld").asBuilder()
+    persistResource(
-        .setSunrushAddGracePeriodLength(Duration.standardMinutes(9))
+        Registry.get("tld")
-        .build());
+            .asBuilder()
+            .setSunrushAddGracePeriodLength(Duration.standardMinutes(9))
+            .build());
     doSuccessfulTest(2);
   }
 
@@ -439,9 +453,10 @@ public class DomainAllocateFlowTest
     setupDomainApplication("tld", TldState.QUIET_PERIOD);
     setEppInput("domain_allocate_dsdata.xml");
     doSuccessfulTest(2);
-    assertAboutDomains().that(reloadResourceByForeignKey())
+    assertAboutDomains()
-        .hasExactlyDsData(DelegationSignerData.create(
+        .that(reloadResourceByForeignKey())
-              12345, 3, 1, base16().decode("49FD46E6C4B45C55D4AC")));
+        .hasExactlyDsData(
+            DelegationSignerData.create(12345, 3, 1, base16().decode("49FD46E6C4B45C55D4AC")));
   }
 
   @Test
@@ -466,24 +481,26 @@ public class DomainAllocateFlowTest
   private void doSuccessfulClaimsNoticeTest() throws Exception {
     setEppInput("domain_allocate_claims_notice.xml");
     runFlowAsSuperuser();
-    assertAboutDomains().that(getOnlyGlobalResource(DomainResource.class))
+    assertAboutDomains()
-        .hasLaunchNotice(LaunchNotice.create(
+        .that(getOnlyGlobalResource(DomainResource.class))
-            "370d0b7c9223372036854775807",
+        .hasLaunchNotice(
-            "tmch",
+            LaunchNotice.create(
-            DateTime.parse("2011-08-16T09:00:00.0Z"),
+                "370d0b7c9223372036854775807",
-            DateTime.parse("2010-07-16T09:00:00.0Z")));
+                "tmch",
+                DateTime.parse("2011-08-16T09:00:00.0Z"),
+                DateTime.parse("2010-07-16T09:00:00.0Z")));
   }
 
   @Test
   public void testSuccess_claimsNotice() throws Exception {
     setupDomainApplication("tld", TldState.QUIET_PERIOD);
     doSuccessfulClaimsNoticeTest();
-    String expectedCsv = String.format(
+    String expectedCsv =
-        "%s,example-one.tld,370d0b7c9223372036854775807,1,"
+        String.format(
-        + "2010-09-16T10:00:00.000Z,2010-07-16T09:00:00.000Z,2010-08-16T10:00:00.000Z",
+            "%s,example-one.tld,370d0b7c9223372036854775807,1,"
-        reloadResourceByForeignKey().getRepoId());
+                + "2010-09-16T10:00:00.000Z,2010-07-16T09:00:00.000Z,2010-08-16T10:00:00.000Z",
-    assertTasksEnqueued(
+            reloadResourceByForeignKey().getRepoId());
-        "lordn-claims", new TaskMatcher().payload(expectedCsv).tag("tld"));
+    assertTasksEnqueued("lordn-claims", new TaskMatcher().payload(expectedCsv).tag("tld"));
   }
 
   @Test
@@ -491,10 +508,11 @@ public class DomainAllocateFlowTest
     setupDomainApplication("tld", TldState.QUIET_PERIOD);
     clock.setTo(DateTime.parse("2011-08-17T09:00:00.0Z"));
     doSuccessfulClaimsNoticeTest();
-    String expectedCsv = String.format(
+    String expectedCsv =
-        "%s,example-one.tld,370d0b7c9223372036854775807,1,"
+        String.format(
-        + "2011-08-17T09:00:00.000Z,2010-07-16T09:00:00.000Z,2010-08-16T10:00:00.000Z",
+            "%s,example-one.tld,370d0b7c9223372036854775807,1,"
-        reloadResourceByForeignKey().getRepoId());
+                + "2011-08-17T09:00:00.000Z,2010-07-16T09:00:00.000Z,2010-08-16T10:00:00.000Z",
+            reloadResourceByForeignKey().getRepoId());
     assertTasksEnqueued("lordn-claims", new TaskMatcher().payload(expectedCsv).tag("tld"));
   }
 
@@ -505,11 +523,11 @@ public class DomainAllocateFlowTest
     doSuccessfulTest(2);
     DomainResource domain = getOnlyGlobalResource(DomainResource.class);
     assertThat(domain.getSmdId()).isEqualTo(SMD_ID);
-    String expectedCsv = String.format(
+    String expectedCsv =
-        "%s,example-one.tld,1-1,1,2010-09-16T10:00:00.000Z,2010-08-16T10:00:00.000Z",
+        String.format(
-        domain.getRepoId());
+            "%s,example-one.tld,1-1,1,2010-09-16T10:00:00.000Z,2010-08-16T10:00:00.000Z",
-    assertTasksEnqueued(
+            domain.getRepoId());
-        "lordn-sunrise", new TaskMatcher().payload(expectedCsv).tag("tld"));
+    assertTasksEnqueued("lordn-sunrise", new TaskMatcher().payload(expectedCsv).tag("tld"));
   }
 
   @Test
@@ -575,7 +593,9 @@ public class DomainAllocateFlowTest
   public void testFailure_alreadyExists() throws Exception {
     setupDomainApplication("tld", TldState.QUIET_PERIOD);
     persistActiveDomain(getUniqueIdFromCommand());
-    assertThrows(ResourceAlreadyExistsException.class, this::runFlowAsSuperuser);
+    EppException thrown =
+        expectThrows(ResourceAlreadyExistsException.class, this::runFlowAsSuperuser);
+    assertAboutEppExceptions().that(thrown).marshalsToXml();
   }
 
   @Test
@@ -610,32 +630,34 @@ public class DomainAllocateFlowTest
   public void testFailure_applicationDeleted() throws Exception {
     setupDomainApplication("tld", TldState.QUIET_PERIOD);
     persistResource(application.asBuilder().setDeletionTime(clock.nowUtc()).build());
-    assertThrows(MissingApplicationException.class, this::runFlowAsSuperuser);
+    EppException thrown = expectThrows(MissingApplicationException.class, this::runFlowAsSuperuser);
+    assertAboutEppExceptions().that(thrown).marshalsToXml();
   }
 
   @Test
   public void testFailure_applicationRejected() throws Exception {
     setupDomainApplication("tld", TldState.QUIET_PERIOD);
-    persistResource(application.asBuilder()
+    persistResource(
-        .setApplicationStatus(ApplicationStatus.REJECTED)
+        application.asBuilder().setApplicationStatus(ApplicationStatus.REJECTED).build());
-        .build());
+    EppException thrown = expectThrows(HasFinalStatusException.class, this::runFlowAsSuperuser);
-    assertThrows(HasFinalStatusException.class, this::runFlowAsSuperuser);
+    assertAboutEppExceptions().that(thrown).marshalsToXml();
   }
 
   @Test
   public void testFailure_applicationAllocated() throws Exception {
     setupDomainApplication("tld", TldState.QUIET_PERIOD);
-    persistResource(application.asBuilder()
+    persistResource(
-        .setApplicationStatus(ApplicationStatus.ALLOCATED)
+        application.asBuilder().setApplicationStatus(ApplicationStatus.ALLOCATED).build());
-        .build());
+    EppException thrown = expectThrows(HasFinalStatusException.class, this::runFlowAsSuperuser);
-    assertThrows(HasFinalStatusException.class, this::runFlowAsSuperuser);
+    assertAboutEppExceptions().that(thrown).marshalsToXml();
   }
 
   @Test
   public void testFailure_applicationDoesNotExist() throws Exception {
     setupDomainApplication("tld", TldState.QUIET_PERIOD);
     setEppInput("domain_allocate_bad_application_roid.xml");
-    assertThrows(MissingApplicationException.class, this::runFlowAsSuperuser);
+    EppException thrown = expectThrows(MissingApplicationException.class, this::runFlowAsSuperuser);
+    assertAboutEppExceptions().that(thrown).marshalsToXml();
   }
 
   @Test
@@ -644,16 +666,20 @@ public class DomainAllocateFlowTest
     clock.advanceOneMilli();
     setEppInput("domain_allocate_no_nameservers.xml");
     assertTransactionalFlow(true);
-    assertThrows(
+    EppException thrown =
-        OnlySuperuserCanAllocateException.class,
+        expectThrows(
-        () -> runFlow(CommitMode.LIVE, UserPrivileges.NORMAL));
+            OnlySuperuserCanAllocateException.class,
+            () -> runFlow(CommitMode.LIVE, UserPrivileges.NORMAL));
+    assertAboutEppExceptions().that(thrown).marshalsToXml();
   }
 
   @Test
   public void testFailure_max10Years() throws Exception {
     setupDomainApplication("tld", TldState.QUIET_PERIOD);
     setEppInput("domain_allocate_11_years.xml");
-    assertThrows(ExceedsMaxRegistrationYearsException.class, this::runFlowAsSuperuser);
+    EppException thrown =
+        expectThrows(ExceedsMaxRegistrationYearsException.class, this::runFlowAsSuperuser);
+    assertAboutEppExceptions().that(thrown).marshalsToXml();
   }
 
   @Test
@@ -678,11 +704,12 @@ public class DomainAllocateFlowTest
     DomainResource domain = reloadResourceByForeignKey();
     HistoryEntry historyEntry =
         getOnlyHistoryEntryOfType(domain, HistoryEntry.Type.DOMAIN_ALLOCATE);
-    assertThat(historyEntry.getDomainTransactionRecords()).containsExactly(
+    assertThat(historyEntry.getDomainTransactionRecords())
-        DomainTransactionRecord.create(
+        .containsExactly(
-            "tld",
+            DomainTransactionRecord.create(
-            historyEntry.getModificationTime().plusMinutes(9),
+                "tld",
-            TransactionReportField.netAddsFieldFromYears(2),
+                historyEntry.getModificationTime().plusMinutes(9),
-            1));
+                TransactionReportField.netAddsFieldFromYears(2),
+                1));
   }
 }

javatests/google/registry/flows/poll/PollRequestFlowTest.java

@@ -20,9 +20,11 @@ import static google.registry.testing.DatastoreHelper.newDomainResource;
 import static google.registry.testing.DatastoreHelper.persistActiveContact;
 import static google.registry.testing.DatastoreHelper.persistActiveHost;
 import static google.registry.testing.DatastoreHelper.persistResource;
-import static google.registry.testing.JUnitBackports.assertThrows;
+import static google.registry.testing.EppExceptionSubject.assertAboutEppExceptions;
+import static google.registry.testing.JUnitBackports.expectThrows;
 
 import com.google.common.collect.ImmutableList;
+import google.registry.flows.EppException;
 import google.registry.flows.FlowTestCase;
 import google.registry.flows.poll.PollRequestFlow.UnexpectedMessageIdException;
 import google.registry.model.contact.ContactResource;
@@ -221,6 +223,7 @@ public class PollRequestFlowTest extends FlowTestCase<PollRequestFlow> {
   public void testFailure_messageIdProvided() throws Exception {
     setEppInput("poll_with_id.xml");
     assertTransactionalFlow(false);
-    assertThrows(UnexpectedMessageIdException.class, this::runFlow);
+    EppException thrown = expectThrows(UnexpectedMessageIdException.class, this::runFlow);
+    assertAboutEppExceptions().that(thrown).marshalsToXml();
   }
 }

javatests/google/registry/flows/session/LoginFlowTestCase.java

@@ -17,8 +17,10 @@ package google.registry.flows.session;
 import static google.registry.testing.DatastoreHelper.deleteResource;
 import static google.registry.testing.DatastoreHelper.loadRegistrar;
 import static google.registry.testing.DatastoreHelper.persistResource;
-import static google.registry.testing.JUnitBackports.assertThrows;
+import static google.registry.testing.EppExceptionSubject.assertAboutEppExceptions;
+import static google.registry.testing.JUnitBackports.expectThrows;
 
+import google.registry.flows.EppException;
 import google.registry.flows.EppException.UnimplementedExtensionException;
 import google.registry.flows.EppException.UnimplementedObjectServiceException;
 import google.registry.flows.EppException.UnimplementedProtocolVersionException;
@@ -61,9 +63,10 @@ public abstract class LoginFlowTestCase extends FlowTestCase<LoginFlow> {
   }
 
   // Also called in subclasses.
-  void doFailingTest(String xmlFilename, Class<? extends Exception> exception) throws Exception {
+  void doFailingTest(String xmlFilename, Class<? extends EppException> exception) throws Exception {
     setEppInput(xmlFilename);
-    assertThrows(exception, this::runFlow);
+    EppException thrown = expectThrows(exception, this::runFlow);
+    assertAboutEppExceptions().that(thrown).marshalsToXml();
   }
 
   @Test

javatests/google/registry/flows/session/LogoutFlowTest.java

@@ -15,8 +15,10 @@
 package google.registry.flows.session;
 
 import static google.registry.testing.DatastoreHelper.createTld;
-import static google.registry.testing.JUnitBackports.assertThrows;
+import static google.registry.testing.EppExceptionSubject.assertAboutEppExceptions;
+import static google.registry.testing.JUnitBackports.expectThrows;
 
+import google.registry.flows.EppException;
 import google.registry.flows.FlowTestCase;
 import google.registry.flows.FlowUtils.NotLoggedInException;
 import org.junit.Before;
@@ -44,6 +46,7 @@ public class LogoutFlowTest extends FlowTestCase<LogoutFlow> {
   @Test
   public void testFailure() throws Exception {
     sessionMetadata.setClientId(null);  // Turn off the implicit login
-    assertThrows(NotLoggedInException.class, this::runFlow);
+    EppException thrown = expectThrows(NotLoggedInException.class, this::runFlow);
+    assertAboutEppExceptions().that(thrown).marshalsToXml();
   }
 }

javatests/google/registry/tools/ValidateLoginCredentialsCommandTest.java

@@ -18,7 +18,9 @@ import static google.registry.model.registrar.Registrar.State.ACTIVE;
 import static google.registry.testing.DatastoreHelper.createTld;
 import static google.registry.testing.DatastoreHelper.loadRegistrar;
 import static google.registry.testing.DatastoreHelper.persistResource;
+import static google.registry.testing.EppExceptionSubject.assertAboutEppExceptions;
 import static google.registry.testing.JUnitBackports.assertThrows;
+import static google.registry.testing.JUnitBackports.expectThrows;
 
 import com.beust.jcommander.ParameterException;
 import com.google.common.collect.ImmutableList;
@@ -63,38 +65,44 @@ public class ValidateLoginCredentialsCommandTest
 
   @Test
   public void testFailure_loginWithBadPassword() throws Exception {
-    assertThrows(
+    EppException thrown =
-        BadRegistrarPasswordException.class,
+        expectThrows(
-        () ->
+            BadRegistrarPasswordException.class,
-            runCommand(
+            () ->
-                "--client=NewRegistrar",
+                runCommand(
-                "--password=" + new StringBuilder(PASSWORD).reverse(),
+                    "--client=NewRegistrar",
-                "--cert_hash=" + CERT_HASH,
+                    "--password=" + new StringBuilder(PASSWORD).reverse(),
-                "--ip_address=" + CLIENT_IP));
+                    "--cert_hash=" + CERT_HASH,
+                    "--ip_address=" + CLIENT_IP));
+    assertAboutEppExceptions().that(thrown).marshalsToXml();
   }
 
   @Test
   public void testFailure_loginWithBadCertificateHash() throws Exception {
-    assertThrows(
+    EppException thrown =
-        EppException.class,
+        expectThrows(
-        () ->
+            EppException.class,
-            runCommand(
+            () ->
-                "--client=NewRegistrar",
+                runCommand(
-                "--password=" + PASSWORD,
+                    "--client=NewRegistrar",
-                "--cert_hash=" + new StringBuilder(CERT_HASH).reverse(),
+                    "--password=" + PASSWORD,
-                "--ip_address=" + CLIENT_IP));
+                    "--cert_hash=" + new StringBuilder(CERT_HASH).reverse(),
+                    "--ip_address=" + CLIENT_IP));
+    assertAboutEppExceptions().that(thrown).marshalsToXml();
   }
 
   @Test
   public void testFailure_loginWithBadIp() throws Exception {
-    assertThrows(
+    EppException thrown =
-        EppException.class,
+        expectThrows(
-        () ->
+            EppException.class,
-            runCommand(
+            () ->
-                "--client=NewRegistrar",
+                runCommand(
-                "--password=" + PASSWORD,
+                    "--client=NewRegistrar",
-                "--cert_hash=" + CERT_HASH,
+                    "--password=" + PASSWORD,
-                "--ip_address=" + new StringBuilder(CLIENT_IP).reverse()));
+                    "--cert_hash=" + CERT_HASH,
+                    "--ip_address=" + new StringBuilder(CLIENT_IP).reverse()));
+    assertAboutEppExceptions().that(thrown).marshalsToXml();
   }
 
   @Test