diff --git a/java/com/google/gerrit/acceptance/testsuite/change/ChangeOperationsImpl.java b/java/com/google/gerrit/acceptance/testsuite/change/ChangeOperationsImpl.java
index 0966bbe..62ad7c4 100644
--- a/java/com/google/gerrit/acceptance/testsuite/change/ChangeOperationsImpl.java
+++ b/java/com/google/gerrit/acceptance/testsuite/change/ChangeOperationsImpl.java
@@ -20,6 +20,7 @@
 import com.google.common.collect.ImmutableList;
 import com.google.common.collect.ImmutableSet;
 import com.google.common.collect.Streams;
+import com.google.gerrit.common.Nullable;
 import com.google.gerrit.entities.Account;
 import com.google.gerrit.entities.Change;
 import com.google.gerrit.entities.PatchSet;
@@ -139,9 +140,10 @@
         RevWalk revWalk = new RevWalk(objectInserter.newReader())) {
       Instant now = TimeUtil.now();
       IdentifiedUser changeOwner = getChangeOwner(changeCreation);
-      PersonIdent authorAndCommitter = changeOwner.newCommitterIdent(now, serverIdent.getZoneId());
+      PersonIdent author = getAuthorIdent(now, changeCreation);
+      PersonIdent committer = getCommitterIdent(now, changeCreation);
       ObjectId commitId =
-          createCommit(repository, revWalk, objectInserter, changeCreation, authorAndCommitter);
+          createCommit(repository, revWalk, objectInserter, changeCreation, author, committer);
 
       String refName = RefNames.fullName(changeCreation.branch());
       ChangeInserter inserter = getChangeInserter(changeId, refName, commitId);
@@ -189,6 +191,30 @@
     return getArbitraryUser();
   }
 
+  private PersonIdent getAuthorIdent(Instant when, TestChangeCreation changeCreation)
+      throws IOException, ConfigInvalidException {
+    if (changeCreation.authorIdent().isPresent()) {
+      return new PersonIdent(changeCreation.authorIdent().get(), when);
+    }
+
+    return (changeCreation.author().isPresent()
+            ? userFactory.create(changeCreation.author().get())
+            : getChangeOwner(changeCreation))
+        .newCommitterIdent(when, serverIdent.getZoneId());
+  }
+
+  private PersonIdent getCommitterIdent(Instant when, TestChangeCreation changeCreation)
+      throws IOException, ConfigInvalidException {
+    if (changeCreation.committerIdent().isPresent()) {
+      return new PersonIdent(changeCreation.committerIdent().get(), when);
+    }
+
+    return (changeCreation.committer().isPresent()
+            ? userFactory.create(changeCreation.committer().get())
+            : getChangeOwner(changeCreation))
+        .newCommitterIdent(when, serverIdent.getZoneId());
+  }
+
   private IdentifiedUser getArbitraryUser() throws ConfigInvalidException, IOException {
     ImmutableSet<Account.Id> foundAccounts = resolver.resolveIgnoreVisibility("").asIdSet();
     checkState(
@@ -202,15 +228,15 @@
       RevWalk revWalk,
       ObjectInserter objectInserter,
       TestChangeCreation changeCreation,
-      PersonIdent authorAndCommitter)
+      PersonIdent author,
+      PersonIdent committer)
       throws IOException, BadRequestException {
     ImmutableList<ObjectId> parentCommits = getParentCommits(repository, revWalk, changeCreation);
     TreeCreator treeCreator =
         getTreeCreator(objectInserter, parentCommits, changeCreation.mergeStrategy());
     ObjectId tree = createNewTree(repository, treeCreator, changeCreation.treeModifications());
     String commitMessage = correctCommitMessage(changeCreation.commitMessage());
-    return createCommit(
-        objectInserter, tree, parentCommits, authorAndCommitter, authorAndCommitter, commitMessage);
+    return createCommit(objectInserter, tree, parentCommits, author, committer, commitMessage);
   }
 
   private ImmutableList<ObjectId> getParentCommits(
@@ -432,9 +458,18 @@
           ObjectInserter objectInserter = repository.newObjectInserter();
           RevWalk revWalk = new RevWalk(objectInserter.newReader())) {
         Instant now = TimeUtil.now();
+        PersonIdent authorIdent = getAuthorIdent(now, patchsetCreation);
+        PersonIdent committerIdent = getCommitterIdent(now, patchsetCreation);
         ObjectId newPatchsetCommit =
             createPatchsetCommit(
-                repository, revWalk, objectInserter, changeNotes, patchsetCreation, now);
+                repository,
+                revWalk,
+                objectInserter,
+                changeNotes,
+                patchsetCreation,
+                authorIdent,
+                committerIdent,
+                now);
 
         PatchSet.Id patchsetId =
             ChangeUtil.nextPatchSetId(repository, changeNotes.getCurrentPatchSet().id());
@@ -453,12 +488,44 @@
       }
     }
 
+    @Nullable
+    private PersonIdent getAuthorIdent(Instant when, TestPatchsetCreation patchsetCreation) {
+      if (patchsetCreation.authorIdent().isPresent()) {
+        return new PersonIdent(patchsetCreation.authorIdent().get(), when);
+      }
+
+      if (patchsetCreation.author().isPresent()) {
+        return userFactory
+            .create(patchsetCreation.author().get())
+            .newCommitterIdent(when, serverIdent.getZoneId());
+      }
+
+      return null;
+    }
+
+    @Nullable
+    private PersonIdent getCommitterIdent(Instant when, TestPatchsetCreation patchsetCreation) {
+      if (patchsetCreation.committerIdent().isPresent()) {
+        return new PersonIdent(patchsetCreation.committerIdent().get(), when);
+      }
+
+      if (patchsetCreation.committer().isPresent()) {
+        return userFactory
+            .create(patchsetCreation.committer().get())
+            .newCommitterIdent(when, serverIdent.getZoneId());
+      }
+
+      return null;
+    }
+
     private ObjectId createPatchsetCommit(
         Repository repository,
         RevWalk revWalk,
         ObjectInserter objectInserter,
         ChangeNotes changeNotes,
         TestPatchsetCreation patchsetCreation,
+        @Nullable PersonIdent author,
+        @Nullable PersonIdent committer,
         Instant now)
         throws IOException, BadRequestException {
       ObjectId oldPatchsetCommitId = changeNotes.getCurrentPatchSet().commitId();
@@ -474,9 +541,13 @@
               changeNotes.getChange().getKey().get(),
               patchsetCreation.commitMessage().orElseGet(oldPatchsetCommit::getFullMessage));
 
-      PersonIdent author = getAuthor(oldPatchsetCommit);
-      PersonIdent committer = getCommitter(oldPatchsetCommit, now);
-      return createCommit(objectInserter, tree, parentCommitIds, author, committer, commitMessage);
+      return createCommit(
+          objectInserter,
+          tree,
+          parentCommitIds,
+          Optional.ofNullable(author).orElse(getAuthor(oldPatchsetCommit)),
+          Optional.ofNullable(committer).orElse(getCommitter(oldPatchsetCommit, now)),
+          commitMessage);
     }
 
     private String correctCommitMessage(String oldChangeId, String desiredCommitMessage)
diff --git a/java/com/google/gerrit/acceptance/testsuite/change/TestChangeCreation.java b/java/com/google/gerrit/acceptance/testsuite/change/TestChangeCreation.java
index f01a138..a0746e2 100644
--- a/java/com/google/gerrit/acceptance/testsuite/change/TestChangeCreation.java
+++ b/java/com/google/gerrit/acceptance/testsuite/change/TestChangeCreation.java
@@ -14,6 +14,8 @@
 
 package com.google.gerrit.acceptance.testsuite.change;
 
+import static com.google.common.base.Preconditions.checkState;
+
 import com.google.auto.value.AutoValue;
 import com.google.common.collect.ImmutableList;
 import com.google.common.collect.ImmutableMap;
@@ -24,6 +26,7 @@
 import com.google.gerrit.server.edit.tree.TreeModification;
 import java.util.Optional;
 import org.eclipse.jgit.lib.Constants;
+import org.eclipse.jgit.lib.PersonIdent;
 import org.eclipse.jgit.merge.MergeStrategy;
 
 /** Initial attributes of the change. If not provided, arbitrary values will be used. */
@@ -35,6 +38,14 @@
 
   public abstract Optional<Account.Id> owner();
 
+  public abstract Optional<Account.Id> author();
+
+  public abstract Optional<PersonIdent> authorIdent();
+
+  public abstract Optional<Account.Id> committer();
+
+  public abstract Optional<PersonIdent> committerIdent();
+
   public abstract Optional<String> topic();
 
   public abstract ImmutableMap<String, Short> approvals();
@@ -69,9 +80,65 @@
      */
     public abstract Builder branch(String branch);
 
-    /** The change owner. Must be an existing user account. */
+    /**
+     * The change owner.
+     *
+     * <p>Must be an existing user account.
+     */
     public abstract Builder owner(Account.Id owner);
 
+    /**
+     * The author of the commit for which the change is created.
+     *
+     * <p>Must be an existing user account.
+     *
+     * <p>Cannot be set together with {@link #authorIdent()} is set.
+     *
+     * <p>If neither {@link #author()} nor {@link #authorIdent()} is set the {@link
+     * TestChangeCreation#owner()} is used as the author.
+     */
+    public abstract Builder author(Account.Id author);
+
+    /**
+     * The author ident of the commit for which the change is created.
+     *
+     * <p>Cannot be set together with {@link #author()} is set.
+     *
+     * <p>If neither {@link #author()} nor {@link #authorIdent()} is set the {@link
+     * TestChangeCreation#owner()} is used as the author.
+     */
+    public abstract Builder authorIdent(PersonIdent authorIdent);
+
+    public abstract Optional<Account.Id> author();
+
+    public abstract Optional<PersonIdent> authorIdent();
+
+    /**
+     * The committer of the commit for which the change is created.
+     *
+     * <p>Must be an existing user account.
+     *
+     * <p>Cannot be set together with {@link #committerIdent()} is set.
+     *
+     * <p>If neither {@link #committer()} nor {@link #committerIdent()} is set the {@link
+     * TestChangeCreation#owner()} is used as the committer.
+     */
+    public abstract Builder committer(Account.Id committer);
+
+    /**
+     * The committer ident of the commit for which the change is created.
+     *
+     * <p>Cannot be set together with {@link #committer()} is set.
+     *
+     * <p>If neither {@link #committer()} nor {@link #committerIdent()} is set the {@link
+     * TestChangeCreation#owner()} is used as the committer.
+     */
+    public abstract Builder committerIdent(PersonIdent committerIdent);
+
+    public abstract Optional<Account.Id> committer();
+
+    public abstract Optional<PersonIdent> committerIdent();
+
     /** The topic to add this change to. */
     public abstract Builder topic(String topic);
 
@@ -156,13 +223,23 @@
 
     abstract TestChangeCreation autoBuild();
 
+    public TestChangeCreation build() {
+      checkState(
+          author().isEmpty() || authorIdent().isEmpty(),
+          "author and authorIdent cannot be set together");
+      checkState(
+          committer().isEmpty() || committerIdent().isEmpty(),
+          "committer and committerIdent cannot be set together");
+      return autoBuild();
+    }
+
     /**
      * Creates the change.
      *
      * @return the {@code Change.Id} of the created change
      */
     public Change.Id create() {
-      TestChangeCreation changeUpdate = autoBuild();
+      TestChangeCreation changeUpdate = build();
       return changeUpdate.changeCreator().applyAndThrowSilently(changeUpdate);
     }
   }
diff --git a/java/com/google/gerrit/acceptance/testsuite/change/TestPatchsetCreation.java b/java/com/google/gerrit/acceptance/testsuite/change/TestPatchsetCreation.java
index 32731c1..f8ca977 100644
--- a/java/com/google/gerrit/acceptance/testsuite/change/TestPatchsetCreation.java
+++ b/java/com/google/gerrit/acceptance/testsuite/change/TestPatchsetCreation.java
@@ -14,6 +14,8 @@
 
 package com.google.gerrit.acceptance.testsuite.change;
 
+import static com.google.common.base.Preconditions.checkState;
+
 import com.google.auto.value.AutoValue;
 import com.google.common.collect.ImmutableList;
 import com.google.gerrit.acceptance.testsuite.ThrowingFunction;
@@ -21,6 +23,7 @@
 import com.google.gerrit.entities.PatchSet;
 import com.google.gerrit.server.edit.tree.TreeModification;
 import java.util.Optional;
+import org.eclipse.jgit.lib.PersonIdent;
 
 /** Initial attributes of the patchset. If not provided, arbitrary values will be used. */
 @AutoValue
@@ -28,6 +31,14 @@
 
   public abstract Optional<Account.Id> uploader();
 
+  public abstract Optional<Account.Id> author();
+
+  public abstract Optional<PersonIdent> authorIdent();
+
+  public abstract Optional<Account.Id> committer();
+
+  public abstract Optional<PersonIdent> committerIdent();
+
   public abstract Optional<String> commitMessage();
 
   public abstract ImmutableList<TreeModification> treeModifications();
@@ -44,11 +55,66 @@
   @AutoValue.Builder
   public abstract static class Builder {
     /**
-     * The uploader for the new patch set. If not set the new patch set is uploaded by the change
-     * owner.
+     * The uploader for the new patch set.
+     *
+     * <p>Must be an existing user account.
+     *
+     * <p>If not set the new patch set is uploaded by the change owner.
      */
     public abstract Builder uploader(Account.Id uploader);
 
+    /**
+     * The author of the commit for which the change is created.
+     *
+     * <p>Must be an existing user account.
+     *
+     * <p>Cannot be set together with {@link #authorIdent()} is set.
+     *
+     * <p>If neither {@link #author()} nor {@link #authorIdent()} is set the {@link
+     * TestChangeCreation#owner()} is used as the author.
+     */
+    public abstract Builder author(Account.Id author);
+
+    /**
+     * The author ident of the commit for which the change is created.
+     *
+     * <p>Cannot be set together with {@link #author()} is set.
+     *
+     * <p>If neither {@link #author()} nor {@link #authorIdent()} is set the {@link
+     * TestChangeCreation#owner()} is used as the author.
+     */
+    public abstract Builder authorIdent(PersonIdent authorIdent);
+
+    public abstract Optional<Account.Id> author();
+
+    public abstract Optional<PersonIdent> authorIdent();
+
+    /**
+     * The committer of the commit for which the change is created.
+     *
+     * <p>Must be an existing user account.
+     *
+     * <p>Cannot be set together with {@link #committerIdent()} is set.
+     *
+     * <p>If neither {@link #committer()} nor {@link #committerIdent()} is set the {@link
+     * TestChangeCreation#owner()} is used as the committer.
+     */
+    public abstract Builder committer(Account.Id committer);
+
+    /**
+     * The committer ident of the commit for which the change is created.
+     *
+     * <p>Cannot be set together with {@link #committer()} is set.
+     *
+     * <p>If neither {@link #committer()} nor {@link #committerIdent()} is set the {@link
+     * TestChangeCreation#owner()} is used as the committer.
+     */
+    public abstract Builder committerIdent(PersonIdent committerIdent);
+
+    public abstract Optional<Account.Id> committer();
+
+    public abstract Optional<PersonIdent> committerIdent();
+
     public abstract Builder commitMessage(String commitMessage);
 
     /** Modified file of the patchset. The file content is specified via the returned builder. */
@@ -100,13 +166,23 @@
 
     abstract TestPatchsetCreation autoBuild();
 
+    public TestPatchsetCreation build() {
+      checkState(
+          author().isEmpty() || authorIdent().isEmpty(),
+          "author and authorIdent cannot be set together");
+      checkState(
+          committer().isEmpty() || committerIdent().isEmpty(),
+          "committer and committerIdent cannot be set together");
+      return autoBuild();
+    }
+
     /**
      * Creates the patchset.
      *
      * @return the {@code PatchSet.Id} of the created patchset
      */
     public PatchSet.Id create() {
-      TestPatchsetCreation patchsetCreation = autoBuild();
+      TestPatchsetCreation patchsetCreation = build();
       return patchsetCreation.patchsetCreator().applyAndThrowSilently(patchsetCreation);
     }
   }
diff --git a/javatests/com/google/gerrit/acceptance/testsuite/change/ChangeOperationsImplTest.java b/javatests/com/google/gerrit/acceptance/testsuite/change/ChangeOperationsImplTest.java
index fd5f6fc..3b97372 100644
--- a/javatests/com/google/gerrit/acceptance/testsuite/change/ChangeOperationsImplTest.java
+++ b/javatests/com/google/gerrit/acceptance/testsuite/change/ChangeOperationsImplTest.java
@@ -29,6 +29,7 @@
 import com.google.common.truth.Correspondence;
 import com.google.gerrit.acceptance.AbstractDaemonTest;
 import com.google.gerrit.acceptance.testsuite.account.AccountOperations;
+import com.google.gerrit.acceptance.testsuite.account.TestAccount;
 import com.google.gerrit.acceptance.testsuite.project.ProjectOperations;
 import com.google.gerrit.acceptance.testsuite.request.RequestScopeOperations;
 import com.google.gerrit.entities.Account;
@@ -49,6 +50,7 @@
 import com.google.inject.Inject;
 import java.util.Map;
 import org.eclipse.jgit.lib.ObjectId;
+import org.eclipse.jgit.lib.PersonIdent;
 import org.junit.Test;
 
 public class ChangeOperationsImplTest extends AbstractDaemonTest {
@@ -611,6 +613,155 @@
   }
 
   @Test
+  public void createdChangeHasOwnerAsAuthor() throws Exception {
+    Change.Id changeId = changeOperations.newChange().create();
+
+    ChangeInfo change = getChangeFromServer(changeId);
+    TestAccount changeOwner = accountOperations.account(Account.id(change.owner._accountId)).get();
+    RevisionInfo revision = change.revisions.get(change.currentRevision);
+    assertThat(revision.commit.author.name).isEqualTo(changeOwner.fullname().get());
+    assertThat(revision.commit.author.email).isEqualTo(changeOwner.preferredEmail().get());
+  }
+
+  @Test
+  public void createdChangeHasSpecifiedOwnerAsAuthor() throws Exception {
+    String changeOwnerName = "Change Owner";
+    String changeOwnerEmail = "change-owner@example.com";
+    Account.Id changeOwner =
+        accountOperations
+            .newAccount()
+            .fullname(changeOwnerName)
+            .preferredEmail(changeOwnerEmail)
+            .create();
+    Change.Id changeId = changeOperations.newChange().owner(changeOwner).create();
+
+    ChangeInfo change = getChangeFromServer(changeId);
+    assertThat(change.owner._accountId).isEqualTo(changeOwner.get());
+    RevisionInfo revision = change.revisions.get(change.currentRevision);
+    assertThat(revision.commit.author.name).isEqualTo(changeOwnerName);
+    assertThat(revision.commit.author.email).isEqualTo(changeOwnerEmail);
+  }
+
+  @Test
+  public void createdChangeHasSpecifiedAuthor() throws Exception {
+    String authorName = "Author";
+    String authorEmail = "author@example.com";
+    Account.Id author =
+        accountOperations.newAccount().fullname(authorName).preferredEmail(authorEmail).create();
+    Change.Id changeId = changeOperations.newChange().author(author).create();
+
+    ChangeInfo change = getChangeFromServer(changeId);
+    assertThat(change.owner._accountId).isNotEqualTo(author.get());
+    RevisionInfo revision = change.revisions.get(change.currentRevision);
+    assertThat(revision.commit.author.name).isEqualTo(authorName);
+    assertThat(revision.commit.author.email).isEqualTo(authorEmail);
+  }
+
+  @Test
+  public void createdChangeHasSpecifiedAuthorIdent() throws Exception {
+    PersonIdent authorIdent = new PersonIdent("Author", "author@example.com");
+    Change.Id changeId = changeOperations.newChange().authorIdent(authorIdent).create();
+
+    ChangeInfo change = getChangeFromServer(changeId);
+    RevisionInfo revision = change.revisions.get(change.currentRevision);
+    assertThat(revision.commit.author.name).isEqualTo(authorIdent.getName());
+    assertThat(revision.commit.author.email).isEqualTo(authorIdent.getEmailAddress());
+  }
+
+  @Test
+  public void changeCannotBeCreatedWithAuthorAndAuthorIdent() throws Exception {
+    Account.Id author = accountOperations.newAccount().create();
+    PersonIdent authorIdent = new PersonIdent("Author", "author@example.com");
+
+    IllegalStateException exception =
+        assertThrows(
+            IllegalStateException.class,
+            () -> changeOperations.newChange().author(author).authorIdent(authorIdent).create());
+    assertThat(exception)
+        .hasMessageThat()
+        .isEqualTo("author and authorIdent cannot be set together");
+  }
+
+  @Test
+  public void createdChangeHasOwnerAsCommitter() throws Exception {
+    Change.Id changeId = changeOperations.newChange().create();
+
+    ChangeInfo change = getChangeFromServer(changeId);
+    TestAccount changeOwner = accountOperations.account(Account.id(change.owner._accountId)).get();
+    RevisionInfo revision = change.revisions.get(change.currentRevision);
+    assertThat(revision.commit.committer.name).isEqualTo(changeOwner.fullname().get());
+    assertThat(revision.commit.committer.email).isEqualTo(changeOwner.preferredEmail().get());
+  }
+
+  @Test
+  public void createdChangeHasSpecifiedOwnerAsCommitter() throws Exception {
+    String changeOwnerName = "Change Owner";
+    String changeOwnerEmail = "change-owner@example.com";
+    Account.Id changeOwner =
+        accountOperations
+            .newAccount()
+            .fullname(changeOwnerName)
+            .preferredEmail(changeOwnerEmail)
+            .create();
+    Change.Id changeId = changeOperations.newChange().owner(changeOwner).create();
+
+    ChangeInfo change = getChangeFromServer(changeId);
+    assertThat(change.owner._accountId).isEqualTo(changeOwner.get());
+    RevisionInfo revision = change.revisions.get(change.currentRevision);
+    assertThat(revision.commit.committer.name).isEqualTo(changeOwnerName);
+    assertThat(revision.commit.committer.email).isEqualTo(changeOwnerEmail);
+  }
+
+  @Test
+  public void createdChangeHasSpecifiedCommitter() throws Exception {
+    String committerName = "Committer";
+    String committerEmail = "committer@example.com";
+    Account.Id committer =
+        accountOperations
+            .newAccount()
+            .fullname(committerName)
+            .preferredEmail(committerEmail)
+            .create();
+    Change.Id changeId = changeOperations.newChange().committer(committer).create();
+
+    ChangeInfo change = getChangeFromServer(changeId);
+    assertThat(change.owner._accountId).isNotEqualTo(committer.get());
+    RevisionInfo revision = change.revisions.get(change.currentRevision);
+    assertThat(revision.commit.committer.name).isEqualTo(committerName);
+    assertThat(revision.commit.committer.email).isEqualTo(committerEmail);
+  }
+
+  @Test
+  public void createdChangeHasSpecifiedCommitterIdent() throws Exception {
+    PersonIdent committerIdent = new PersonIdent("Committer", "committer@example.com");
+    Change.Id changeId = changeOperations.newChange().committerIdent(committerIdent).create();
+
+    ChangeInfo change = getChangeFromServer(changeId);
+    RevisionInfo revision = change.revisions.get(change.currentRevision);
+    assertThat(revision.commit.committer.name).isEqualTo(committerIdent.getName());
+    assertThat(revision.commit.committer.email).isEqualTo(committerIdent.getEmailAddress());
+  }
+
+  @Test
+  public void changeCannotBeCreatedWithCommitterAndCommitterIdent() throws Exception {
+    Account.Id committer = accountOperations.newAccount().create();
+    PersonIdent committerIdent = new PersonIdent("Committer", "committer@example.com");
+
+    IllegalStateException exception =
+        assertThrows(
+            IllegalStateException.class,
+            () ->
+                changeOperations
+                    .newChange()
+                    .committer(committer)
+                    .committerIdent(committerIdent)
+                    .create());
+    assertThat(exception)
+        .hasMessageThat()
+        .isEqualTo("committer and committerIdent cannot be set together");
+  }
+
+  @Test
   public void createdChangeHasSpecifiedTopic() throws Exception {
     Change.Id changeId = changeOperations.newChange().topic("test-topic").create();
 
@@ -812,6 +963,156 @@
   }
 
   @Test
+  public void createdPatchsetPreviousAuthorAsAuthor() throws Exception {
+    String authorName = "Author";
+    String authorEmail = "author@example.com";
+    Account.Id author =
+        accountOperations.newAccount().fullname(authorName).preferredEmail(authorEmail).create();
+    Change.Id changeId = changeOperations.newChange().author(author).create();
+    ChangeInfo change = getChangeFromServer(changeId);
+    RevisionInfo revision = change.revisions.get(change.currentRevision);
+    assertThat(revision.commit.author.name).isEqualTo(authorName);
+    assertThat(revision.commit.author.email).isEqualTo(authorEmail);
+
+    changeOperations.change(changeId).newPatchset().create();
+    change = getChangeFromServer(changeId);
+    revision = change.revisions.get(change.currentRevision);
+    assertThat(revision.commit.author.name).isEqualTo(authorName);
+    assertThat(revision.commit.author.email).isEqualTo(authorEmail);
+  }
+
+  @Test
+  public void createdPatchsetHasSpecifiedAuthor() throws Exception {
+    Change.Id changeId = changeOperations.newChange().create();
+
+    String authorName = "Author";
+    String authorEmail = "author@example.com";
+    Account.Id author =
+        accountOperations.newAccount().fullname(authorName).preferredEmail(authorEmail).create();
+    changeOperations.change(changeId).newPatchset().author(author).create();
+
+    ChangeInfo change = getChangeFromServer(changeId);
+    assertThat(change.owner._accountId).isNotEqualTo(author.get());
+    RevisionInfo revision = change.revisions.get(change.currentRevision);
+    assertThat(revision.commit.author.name).isEqualTo(authorName);
+    assertThat(revision.commit.author.email).isEqualTo(authorEmail);
+  }
+
+  @Test
+  public void createdPatchsetHasSpecifiedAuthorIdent() throws Exception {
+    Change.Id changeId = changeOperations.newChange().create();
+
+    PersonIdent authorIdent = new PersonIdent("Author", "author@example.com");
+    changeOperations.change(changeId).newPatchset().authorIdent(authorIdent).create();
+
+    ChangeInfo change = getChangeFromServer(changeId);
+    RevisionInfo revision = change.revisions.get(change.currentRevision);
+    assertThat(revision.commit.author.name).isEqualTo(authorIdent.getName());
+    assertThat(revision.commit.author.email).isEqualTo(authorIdent.getEmailAddress());
+  }
+
+  @Test
+  public void patchsetCannotBeCreatedWithAuthorAndAuthorIdent() throws Exception {
+    Change.Id changeId = changeOperations.newChange().create();
+
+    Account.Id author = accountOperations.newAccount().create();
+    PersonIdent authorIdent = new PersonIdent("Author", "author@example.com");
+
+    IllegalStateException exception =
+        assertThrows(
+            IllegalStateException.class,
+            () ->
+                changeOperations
+                    .change(changeId)
+                    .newPatchset()
+                    .author(author)
+                    .authorIdent(authorIdent)
+                    .create());
+    assertThat(exception)
+        .hasMessageThat()
+        .isEqualTo("author and authorIdent cannot be set together");
+  }
+
+  @Test
+  public void createdPatchsetPreviousCommitterAsCommitter() throws Exception {
+    String committerName = "Committer";
+    String committerEmail = "committer@example.com";
+    Account.Id committer =
+        accountOperations
+            .newAccount()
+            .fullname(committerName)
+            .preferredEmail(committerEmail)
+            .create();
+    Change.Id changeId = changeOperations.newChange().committer(committer).create();
+    ChangeInfo change = getChangeFromServer(changeId);
+    RevisionInfo revision = change.revisions.get(change.currentRevision);
+    assertThat(revision.commit.committer.name).isEqualTo(committerName);
+    assertThat(revision.commit.committer.email).isEqualTo(committerEmail);
+
+    changeOperations.change(changeId).newPatchset().create();
+    change = getChangeFromServer(changeId);
+    revision = change.revisions.get(change.currentRevision);
+    assertThat(revision.commit.committer.name).isEqualTo(committerName);
+    assertThat(revision.commit.committer.email).isEqualTo(committerEmail);
+  }
+
+  @Test
+  public void createdPatchsetHasSpecifiedCommitter() throws Exception {
+    Change.Id changeId = changeOperations.newChange().create();
+
+    String committerName = "Committer";
+    String committerEmail = "committer@example.com";
+    Account.Id committer =
+        accountOperations
+            .newAccount()
+            .fullname(committerName)
+            .preferredEmail(committerEmail)
+            .create();
+    changeOperations.change(changeId).newPatchset().committer(committer).create();
+
+    ChangeInfo change = getChangeFromServer(changeId);
+    assertThat(change.owner._accountId).isNotEqualTo(committer.get());
+    RevisionInfo revision = change.revisions.get(change.currentRevision);
+    assertThat(revision.commit.committer.name).isEqualTo(committerName);
+    assertThat(revision.commit.committer.email).isEqualTo(committerEmail);
+  }
+
+  @Test
+  public void createdPatchsetHasSpecifiedCommitterIdent() throws Exception {
+    Change.Id changeId = changeOperations.newChange().create();
+
+    PersonIdent committerIdent = new PersonIdent("Committer", "committer@example.com");
+    changeOperations.change(changeId).newPatchset().committerIdent(committerIdent).create();
+
+    ChangeInfo change = getChangeFromServer(changeId);
+    RevisionInfo revision = change.revisions.get(change.currentRevision);
+    assertThat(revision.commit.committer.name).isEqualTo(committerIdent.getName());
+    assertThat(revision.commit.committer.email).isEqualTo(committerIdent.getEmailAddress());
+  }
+
+  @Test
+  public void patchsetCannotBeCreatedWithCommitterAndCommitterIdent() throws Exception {
+    Change.Id changeId = changeOperations.newChange().create();
+
+    Account.Id committer = accountOperations.newAccount().create();
+    PersonIdent committerIdent = new PersonIdent("Committer", "committer@example.com");
+
+    IllegalStateException exception =
+        assertThrows(
+            IllegalStateException.class,
+            () ->
+                changeOperations
+                    .change(changeId)
+                    .newPatchset()
+                    .committer(committer)
+                    .committerIdent(committerIdent)
+                    .create());
+    assertThat(exception)
+        .hasMessageThat()
+        .isEqualTo("committer and committerIdent cannot be set together");
+  }
+
+  @Test
   public void newPatchsetCanHaveUpdatedCommitMessage() throws Exception {
     Change.Id changeId = changeOperations.newChange().commitMessage("Old message").create();