diff --git a/gerrit-acceptance-tests/src/test/java/com/google/gerrit/acceptance/AbstractDaemonTest.java b/gerrit-acceptance-tests/src/test/java/com/google/gerrit/acceptance/AbstractDaemonTest.java
index d88a206..e59ed4d 100644
--- a/gerrit-acceptance-tests/src/test/java/com/google/gerrit/acceptance/AbstractDaemonTest.java
+++ b/gerrit-acceptance-tests/src/test/java/com/google/gerrit/acceptance/AbstractDaemonTest.java
@@ -64,6 +64,7 @@
 import org.eclipse.jgit.api.Git;
 import org.eclipse.jgit.errors.ConfigInvalidException;
 import org.eclipse.jgit.errors.RepositoryNotFoundException;
+import org.eclipse.jgit.internal.storage.dfs.InMemoryRepository;
 import org.eclipse.jgit.junit.TestRepository;
 import org.eclipse.jgit.lib.Config;
 import org.eclipse.jgit.lib.ObjectId;
@@ -127,8 +128,7 @@
   @Inject
   protected @GerritServerConfig Config cfg;
 
-  protected Git git;
-  protected TestRepository<?> testRepo;
+  protected TestRepository<InMemoryRepository> testRepo;
   protected GerritServer server;
   protected TestAccount admin;
   protected TestAccount user;
@@ -211,7 +211,7 @@
     project = new Project.NameKey(projectInput.name);
     createProject(projectInput);
 
-    setRepo(cloneProject(project, sshSession));
+    testRepo = cloneProject(project, sshSession);
   }
 
   private ProjectInput projectInput(Description description) {
@@ -237,9 +237,12 @@
     return in;
   }
 
-  protected void setRepo(TestRepository<?> testRepo) throws Exception {
-    this.git = Git.wrap(testRepo.getRepository());
-    this.testRepo = new TestRepository<>(git.getRepository());
+  protected Git git() {
+    return testRepo.git();
+  }
+
+  protected InMemoryRepository repo() {
+    return testRepo.getRepository();
   }
 
   protected void createProject(String name) throws RestApiException {
@@ -291,7 +294,7 @@
   }
 
   protected TestRepository<?>.CommitBuilder amendBuilder() throws Exception {
-    ObjectId head = testRepo.getRepository().getRef("HEAD").getObjectId();
+    ObjectId head = repo().getRef("HEAD").getObjectId();
     TestRepository<?>.CommitBuilder b = testRepo.amendRef("HEAD");
     Optional<String> id = GitUtil.getChangeId(testRepo, head);
     // TestRepository behaves like "git commit --amend -m foo", which does not
diff --git a/gerrit-acceptance-tests/src/test/java/com/google/gerrit/acceptance/GitUtil.java b/gerrit-acceptance-tests/src/test/java/com/google/gerrit/acceptance/GitUtil.java
index b0fae3c..d90e459 100644
--- a/gerrit-acceptance-tests/src/test/java/com/google/gerrit/acceptance/GitUtil.java
+++ b/gerrit-acceptance-tests/src/test/java/com/google/gerrit/acceptance/GitUtil.java
@@ -24,7 +24,6 @@
 import com.jcraft.jsch.Session;
 
 import org.eclipse.jgit.api.FetchCommand;
-import org.eclipse.jgit.api.Git;
 import org.eclipse.jgit.api.PushCommand;
 import org.eclipse.jgit.api.errors.GitAPIException;
 import org.eclipse.jgit.internal.storage.dfs.DfsRepositoryDescription;
@@ -96,20 +95,21 @@
     return cloneProject(project, sshSession.getUrl() + "/" + project.get());
   }
 
-  public static void fetch(Git git, String spec) throws GitAPIException {
-    FetchCommand fetch = git.fetch();
+  public static void fetch(TestRepository<?> testRepo, String spec)
+      throws GitAPIException {
+    FetchCommand fetch = testRepo.git().fetch();
     fetch.setRefSpecs(new RefSpec(spec));
     fetch.call();
   }
 
-  public static PushResult pushHead(Git git, String ref, boolean pushTags)
-      throws GitAPIException {
-    return pushHead(git, ref, pushTags, false);
+  public static PushResult pushHead(TestRepository<?> testRepo, String ref,
+      boolean pushTags) throws GitAPIException {
+    return pushHead(testRepo, ref, pushTags, false);
   }
 
-  public static PushResult pushHead(Git git, String ref, boolean pushTags,
-      boolean force) throws GitAPIException {
-    PushCommand pushCmd = git.push();
+  public static PushResult pushHead(TestRepository<?> testRepo, String ref,
+      boolean pushTags, boolean force) throws GitAPIException {
+    PushCommand pushCmd = testRepo.git().push();
     pushCmd.setForce(force);
     pushCmd.setRefSpecs(new RefSpec("HEAD:" + ref));
     if (pushTags) {
diff --git a/gerrit-acceptance-tests/src/test/java/com/google/gerrit/acceptance/PushOneCommit.java b/gerrit-acceptance-tests/src/test/java/com/google/gerrit/acceptance/PushOneCommit.java
index ad3469f..041d2fd 100644
--- a/gerrit-acceptance-tests/src/test/java/com/google/gerrit/acceptance/PushOneCommit.java
+++ b/gerrit-acceptance-tests/src/test/java/com/google/gerrit/acceptance/PushOneCommit.java
@@ -36,7 +36,6 @@
 import com.google.inject.assistedinject.Assisted;
 import com.google.inject.assistedinject.AssistedInject;
 
-import org.eclipse.jgit.api.Git;
 import org.eclipse.jgit.api.TagCommand;
 import org.eclipse.jgit.junit.TestRepository;
 import org.eclipse.jgit.lib.ObjectId;
@@ -181,9 +180,8 @@
     if (changeId == null) {
       changeId = GitUtil.getChangeId(testRepo, c).get();
     }
-    Git git = Git.wrap(testRepo.getRepository());
     if (tag != null) {
-      TagCommand tagCommand = git.tag().setName(tag.name);
+      TagCommand tagCommand = testRepo.git().tag().setName(tag.name);
       if (tag instanceof AnnotatedTag) {
         AnnotatedTag annotatedTag = (AnnotatedTag)tag;
         tagCommand.setAnnotated(true)
@@ -194,7 +192,8 @@
       }
       tagCommand.call();
     }
-    return new Result(ref, pushHead(git, ref, tag != null, force), c, subject);
+    return new Result(ref, pushHead(testRepo, ref, tag != null, force), c,
+        subject);
   }
 
   public void setTag(final Tag tag) {
diff --git a/gerrit-acceptance-tests/src/test/java/com/google/gerrit/acceptance/api/revision/RevisionIT.java b/gerrit-acceptance-tests/src/test/java/com/google/gerrit/acceptance/api/revision/RevisionIT.java
index ad3c180..665c98e 100644
--- a/gerrit-acceptance-tests/src/test/java/com/google/gerrit/acceptance/api/revision/RevisionIT.java
+++ b/gerrit-acceptance-tests/src/test/java/com/google/gerrit/acceptance/api/revision/RevisionIT.java
@@ -349,7 +349,7 @@
 
   @Test
   public void mergeable() throws Exception {
-    ObjectId initial = git.getRepository().getRef(HEAD).getLeaf().getObjectId();
+    ObjectId initial = repo().getRef(HEAD).getLeaf().getObjectId();
 
     PushOneCommit push1 =
         pushFactory.create(db, admin.getIdent(), testRepo, PushOneCommit.SUBJECT,
@@ -360,7 +360,7 @@
     merge(r1);
 
     // Reset HEAD to initial so the new change is a merge conflict.
-    RefUpdate ru = git.getRepository().updateRef(HEAD);
+    RefUpdate ru = repo().updateRef(HEAD);
     ru.setNewObjectId(initial);
     assertThat(ru.forceUpdate()).isEqualTo(RefUpdate.Result.FORCED);
 
diff --git a/gerrit-acceptance-tests/src/test/java/com/google/gerrit/acceptance/git/AbstractPushForReview.java b/gerrit-acceptance-tests/src/test/java/com/google/gerrit/acceptance/git/AbstractPushForReview.java
index 4522c13..8a35567 100644
--- a/gerrit-acceptance-tests/src/test/java/com/google/gerrit/acceptance/git/AbstractPushForReview.java
+++ b/gerrit-acceptance-tests/src/test/java/com/google/gerrit/acceptance/git/AbstractPushForReview.java
@@ -68,7 +68,7 @@
       default:
         throw new IllegalArgumentException("unexpected protocol: " + p);
     }
-    setRepo(cloneProject(project, url + "/" + project.get()));
+    testRepo = cloneProject(project, url + "/" + project.get());
   }
 
   @Test
diff --git a/gerrit-acceptance-tests/src/test/java/com/google/gerrit/acceptance/git/ForcePushIT.java b/gerrit-acceptance-tests/src/test/java/com/google/gerrit/acceptance/git/ForcePushIT.java
index 44ddb94..26db819 100644
--- a/gerrit-acceptance-tests/src/test/java/com/google/gerrit/acceptance/git/ForcePushIT.java
+++ b/gerrit-acceptance-tests/src/test/java/com/google/gerrit/acceptance/git/ForcePushIT.java
@@ -29,14 +29,14 @@
 
   @Test
   public void forcePushNotAllowed() throws Exception {
-    ObjectId initial = git.getRepository().getRef(HEAD).getLeaf().getObjectId();
+    ObjectId initial = repo().getRef(HEAD).getLeaf().getObjectId();
     PushOneCommit push1 =
         pushFactory.create(db, admin.getIdent(), testRepo, "change1", "a.txt", "content");
     PushOneCommit.Result r1 = push1.to("refs/heads/master");
     r1.assertOkStatus();
 
     // Reset HEAD to initial so the new change is a non-fast forward
-    RefUpdate ru = git.getRepository().updateRef(HEAD);
+    RefUpdate ru = repo().updateRef(HEAD);
     ru.setNewObjectId(initial);
     assertThat(ru.forceUpdate()).isEqualTo(RefUpdate.Result.FORCED);
 
@@ -49,7 +49,7 @@
 
   @Test
   public void forcePushAllowed() throws Exception {
-    ObjectId initial = git.getRepository().getRef(HEAD).getLeaf().getObjectId();
+    ObjectId initial = repo().getRef(HEAD).getLeaf().getObjectId();
     grant(Permission.PUSH, project, "refs/*", true);
     PushOneCommit push1 =
         pushFactory.create(db, admin.getIdent(), testRepo, "change1", "a.txt", "content");
@@ -57,7 +57,7 @@
     r1.assertOkStatus();
 
     // Reset HEAD to initial so the new change is a non-fast forward
-    RefUpdate ru = git.getRepository().updateRef(HEAD);
+    RefUpdate ru = repo().updateRef(HEAD);
     ru.setNewObjectId(initial);
     assertThat(ru.forceUpdate()).isEqualTo(RefUpdate.Result.FORCED);
 
diff --git a/gerrit-acceptance-tests/src/test/java/com/google/gerrit/acceptance/git/SubmitOnPushIT.java b/gerrit-acceptance-tests/src/test/java/com/google/gerrit/acceptance/git/SubmitOnPushIT.java
index 073f37e..559491d 100644
--- a/gerrit-acceptance-tests/src/test/java/com/google/gerrit/acceptance/git/SubmitOnPushIT.java
+++ b/gerrit-acceptance-tests/src/test/java/com/google/gerrit/acceptance/git/SubmitOnPushIT.java
@@ -103,9 +103,8 @@
   public void submitOnPushToRefsMetaConfig() throws Exception {
     grant(Permission.SUBMIT, project, "refs/for/refs/meta/config");
 
-    git.fetch().setRefSpecs(new RefSpec("refs/meta/config:refs/meta/config")).call();
-    ObjectId objectId = git.getRepository().getRef("refs/meta/config").getObjectId();
-    testRepo.reset(objectId);
+    git().fetch().setRefSpecs(new RefSpec("refs/meta/config:refs/meta/config")).call();
+    testRepo.reset("refs/meta/config");
 
     PushOneCommit.Result r = pushTo("refs/for/refs/meta/config%submit");
     r.assertOkStatus();
@@ -116,7 +115,7 @@
 
   @Test
   public void submitOnPushMergeConflict() throws Exception {
-    ObjectId objectId = git.getRepository().getRef("HEAD").getObjectId();
+    ObjectId objectId = repo().getRef("HEAD").getObjectId();
     push("refs/heads/master", "one change", "a.txt", "some content");
     testRepo.reset(objectId);
 
@@ -131,7 +130,7 @@
   @Test
   public void submitOnPushSuccessfulMerge() throws Exception {
     String master = "refs/heads/master";
-    ObjectId objectId = git.getRepository().getRef("HEAD").getObjectId();
+    ObjectId objectId = repo().getRef("HEAD").getObjectId();
     push(master, "one change", "a.txt", "some content");
     testRepo.reset(objectId);
 
@@ -196,7 +195,7 @@
         push("refs/for/master", PushOneCommit.SUBJECT, "a.txt", "some content");
     r.assertOkStatus();
 
-    git.push()
+    git().push()
         .setRefSpecs(new RefSpec(r.getCommitId().name() + ":refs/heads/master"))
         .call();
     assertCommit(project, "refs/heads/master");
diff --git a/gerrit-acceptance-tests/src/test/java/com/google/gerrit/acceptance/rest/change/AbstractSubmit.java b/gerrit-acceptance-tests/src/test/java/com/google/gerrit/acceptance/rest/change/AbstractSubmit.java
index ee930bb..6bcc54b 100644
--- a/gerrit-acceptance-tests/src/test/java/com/google/gerrit/acceptance/rest/change/AbstractSubmit.java
+++ b/gerrit-acceptance-tests/src/test/java/com/google/gerrit/acceptance/rest/change/AbstractSubmit.java
@@ -57,8 +57,8 @@
 import com.google.inject.Inject;
 
 import org.apache.http.HttpStatus;
-import org.eclipse.jgit.api.Git;
 import org.eclipse.jgit.diff.DiffFormatter;
+import org.eclipse.jgit.junit.TestRepository;
 import org.eclipse.jgit.lib.Config;
 import org.eclipse.jgit.lib.ObjectId;
 import org.eclipse.jgit.lib.Ref;
@@ -279,17 +279,17 @@
     assertThat(submitter.getAccountId()).isEqualTo(admin.getId());
   }
 
-  protected void assertCherryPick(Git localGit, boolean contentMerge)
-      throws IOException {
-    assertRebase(localGit, contentMerge);
+  protected void assertCherryPick(TestRepository<?> testRepo,
+      boolean contentMerge) throws IOException {
+    assertRebase(testRepo, contentMerge);
     RevCommit remoteHead = getRemoteHead();
     assertThat(remoteHead.getFooterLines("Reviewed-On")).isNotEmpty();
     assertThat(remoteHead.getFooterLines("Reviewed-By")).isNotEmpty();
   }
 
-  protected void assertRebase(Git localGit, boolean contentMerge)
+  protected void assertRebase(TestRepository<?> testRepo, boolean contentMerge)
       throws IOException {
-    Repository repo = localGit.getRepository();
+    Repository repo = testRepo.getRepository();
     RevCommit localHead = getHead(repo);
     RevCommit remoteHead = getRemoteHead();
     assert_().withFailureMessage(
diff --git a/gerrit-acceptance-tests/src/test/java/com/google/gerrit/acceptance/rest/change/ChangeOwnerIT.java b/gerrit-acceptance-tests/src/test/java/com/google/gerrit/acceptance/rest/change/ChangeOwnerIT.java
index b2c0adb..95c70ad 100644
--- a/gerrit-acceptance-tests/src/test/java/com/google/gerrit/acceptance/rest/change/ChangeOwnerIT.java
+++ b/gerrit-acceptance-tests/src/test/java/com/google/gerrit/acceptance/rest/change/ChangeOwnerIT.java
@@ -53,7 +53,7 @@
     SshSession sshSession = new SshSession(server, user);
     initSsh(user);
     sshSession.open();
-    setRepo(cloneProject(project, sshSession));
+    testRepo = cloneProject(project, sshSession);
     sshSession.close();
     user2 = accounts.user2();
     sessionDev = new RestSession(server, user2);
diff --git a/gerrit-acceptance-tests/src/test/java/com/google/gerrit/acceptance/rest/change/SubmitByCherryPickIT.java b/gerrit-acceptance-tests/src/test/java/com/google/gerrit/acceptance/rest/change/SubmitByCherryPickIT.java
index 3152139..c00a260 100644
--- a/gerrit-acceptance-tests/src/test/java/com/google/gerrit/acceptance/rest/change/SubmitByCherryPickIT.java
+++ b/gerrit-acceptance-tests/src/test/java/com/google/gerrit/acceptance/rest/change/SubmitByCherryPickIT.java
@@ -41,7 +41,7 @@
   public void submitWithCherryPickIfFastForwardPossible() throws Exception {
     PushOneCommit.Result change = createChange();
     submit(change.getChangeId());
-    assertCherryPick(git, false);
+    assertCherryPick(testRepo, false);
     assertThat(getRemoteHead().getParent(0))
       .isEqualTo(change.getCommit().getParent(0));
   }
@@ -58,7 +58,7 @@
     PushOneCommit.Result change2 =
         createChange("Change 2", "b.txt", "other content");
     submit(change2.getChangeId());
-    assertCherryPick(git, false);
+    assertCherryPick(testRepo, false);
     RevCommit newHead = getRemoteHead();
     assertThat(newHead.getParentCount()).isEqualTo(1);
     assertThat(newHead.getParent(0)).isEqualTo(oldHead);
@@ -82,7 +82,7 @@
     PushOneCommit.Result change3 =
         createChange("Change 3", "a.txt", "bbb\nccc\n");
     submit(change3.getChangeId());
-    assertCherryPick(git, true);
+    assertCherryPick(testRepo, true);
     RevCommit newHead = getRemoteHead();
     assertThat(newHead.getParent(0)).isEqualTo(oldHead);
     assertApproved(change3.getChangeId());
@@ -122,7 +122,7 @@
     PushOneCommit.Result change3 =
         createChange("Change 3", "c.txt", "different content");
     submit(change3.getChangeId());
-    assertCherryPick(git, false);
+    assertCherryPick(testRepo, false);
     RevCommit newHead = getRemoteHead();
     assertThat(newHead.getParent(0)).isEqualTo(oldHead);
     assertApproved(change3.getChangeId());
diff --git a/gerrit-acceptance-tests/src/test/java/com/google/gerrit/acceptance/rest/change/SubmitByRebaseIfNecessaryIT.java b/gerrit-acceptance-tests/src/test/java/com/google/gerrit/acceptance/rest/change/SubmitByRebaseIfNecessaryIT.java
index 6d5db92..bb26a30 100644
--- a/gerrit-acceptance-tests/src/test/java/com/google/gerrit/acceptance/rest/change/SubmitByRebaseIfNecessaryIT.java
+++ b/gerrit-acceptance-tests/src/test/java/com/google/gerrit/acceptance/rest/change/SubmitByRebaseIfNecessaryIT.java
@@ -58,7 +58,7 @@
     PushOneCommit.Result change2 =
         createChange("Change 2", "b.txt", "other content");
     submit(change2.getChangeId());
-    assertRebase(git, false);
+    assertRebase(testRepo, false);
     RevCommit head = getRemoteHead();
     assertThat(head.getParent(0)).isEqualTo(oldHead);
     assertApproved(change2.getChangeId());
@@ -82,7 +82,7 @@
     PushOneCommit.Result change3 =
         createChange("Change 3", "a.txt", "bbb\nccc\n");
     submit(change3.getChangeId());
-    assertRebase(git, true);
+    assertRebase(testRepo, true);
     RevCommit head = getRemoteHead();
     assertThat(head.getParent(0)).isEqualTo(oldHead);
     assertApproved(change3.getChangeId());
diff --git a/gerrit-acceptance-tests/src/test/java/com/google/gerrit/acceptance/rest/project/BanCommitIT.java b/gerrit-acceptance-tests/src/test/java/com/google/gerrit/acceptance/rest/project/BanCommitIT.java
index f59004a..682059c 100644
--- a/gerrit-acceptance-tests/src/test/java/com/google/gerrit/acceptance/rest/project/BanCommitIT.java
+++ b/gerrit-acceptance-tests/src/test/java/com/google/gerrit/acceptance/rest/project/BanCommitIT.java
@@ -45,7 +45,7 @@
     assertThat(info.alreadyBanned).isNull();
     assertThat(info.ignored).isNull();
 
-    PushResult pushResult = pushHead(git, "refs/heads/master", false);
+    PushResult pushResult = pushHead(testRepo, "refs/heads/master", false);
     assertThat(pushResult.getRemoteUpdate("refs/heads/master").getMessage())
         .startsWith("contains banned commit");
   }
diff --git a/gerrit-acceptance-tests/src/test/java/com/google/gerrit/acceptance/rest/project/ListBranchesIT.java b/gerrit-acceptance-tests/src/test/java/com/google/gerrit/acceptance/rest/project/ListBranchesIT.java
index 674b21a..3f27272 100644
--- a/gerrit-acceptance-tests/src/test/java/com/google/gerrit/acceptance/rest/project/ListBranchesIT.java
+++ b/gerrit-acceptance-tests/src/test/java/com/google/gerrit/acceptance/rest/project/ListBranchesIT.java
@@ -61,9 +61,9 @@
   @Test
   public void listBranches() throws Exception {
     pushTo("refs/heads/master");
-    String headCommit = git.getRepository().getRef("HEAD").getTarget().getObjectId().getName();
+    String headCommit = repo().getRef("HEAD").getTarget().getObjectId().getName();
     pushTo("refs/heads/dev");
-    String devCommit = git.getRepository().getRef("HEAD").getTarget().getObjectId().getName();
+    String devCommit = repo().getRef("HEAD").getTarget().getObjectId().getName();
     RestResponse r = adminSession.get("/projects/" + project.get() + "/branches");
     List<BranchInfo> expected = Lists.asList(
         new BranchInfo("refs/meta/config",  null, false),
@@ -86,7 +86,7 @@
   public void listBranchesSomeHidden() throws Exception {
     blockRead(project, "refs/heads/dev");
     pushTo("refs/heads/master");
-    String headCommit = git.getRepository().getRef("HEAD").getTarget().getObjectId().getName();
+    String headCommit = repo().getRef("HEAD").getTarget().getObjectId().getName();
     pushTo("refs/heads/dev");
     RestResponse r = userSession.get("/projects/" + project.get() + "/branches");
     // refs/meta/config is hidden since user is no project owner
@@ -103,7 +103,7 @@
     blockRead(project, "refs/heads/master");
     pushTo("refs/heads/master");
     pushTo("refs/heads/dev");
-    String devCommit = git.getRepository().getRef("HEAD").getTarget().getObjectId().getName();
+    String devCommit = repo().getRef("HEAD").getTarget().getObjectId().getName();
     RestResponse r = userSession.get("/projects/" + project.get() + "/branches");
     // refs/meta/config is hidden since user is no project owner
     assertBranches(Collections.singletonList(new BranchInfo("refs/heads/dev",
diff --git a/gerrit-acceptance-tests/src/test/java/com/google/gerrit/acceptance/rest/project/ProjectLevelConfigIT.java b/gerrit-acceptance-tests/src/test/java/com/google/gerrit/acceptance/rest/project/ProjectLevelConfigIT.java
index 4aa0ba0..660bbbc 100644
--- a/gerrit-acceptance-tests/src/test/java/com/google/gerrit/acceptance/rest/project/ProjectLevelConfigIT.java
+++ b/gerrit-acceptance-tests/src/test/java/com/google/gerrit/acceptance/rest/project/ProjectLevelConfigIT.java
@@ -23,7 +23,6 @@
 import com.google.gerrit.reviewdb.client.RefNames;
 import com.google.gerrit.server.project.ProjectState;
 
-import org.eclipse.jgit.api.Git;
 import org.eclipse.jgit.junit.TestRepository;
 import org.eclipse.jgit.lib.Config;
 import org.junit.Before;
@@ -32,7 +31,7 @@
 public class ProjectLevelConfigIT extends AbstractDaemonTest {
   @Before
   public void setUp() throws Exception {
-    fetch(git, RefNames.REFS_CONFIG + ":refs/heads/config");
+    fetch(testRepo, RefNames.REFS_CONFIG + ":refs/heads/config");
     testRepo.reset("refs/heads/config");
   }
 
@@ -69,8 +68,7 @@
     parentCfg.setString("s2", "ss", "k4", "parentValue4");
 
     TestRepository<?> parentTestRepo = cloneProject(allProjects, sshSession);
-    Git parentGit = Git.wrap(parentTestRepo.getRepository());
-    fetch(parentGit, RefNames.REFS_CONFIG + ":refs/heads/config");
+    fetch(parentTestRepo, RefNames.REFS_CONFIG + ":refs/heads/config");
     parentTestRepo.reset("refs/heads/config");
     PushOneCommit push =
         pushFactory.create(db, admin.getIdent(), parentTestRepo, "Create Project Level Config",
diff --git a/gerrit-acceptance-tests/src/test/java/com/google/gerrit/acceptance/server/change/GetRelatedIT.java b/gerrit-acceptance-tests/src/test/java/com/google/gerrit/acceptance/server/change/GetRelatedIT.java
index 34d468f..d4268ee 100644
--- a/gerrit-acceptance-tests/src/test/java/com/google/gerrit/acceptance/server/change/GetRelatedIT.java
+++ b/gerrit-acceptance-tests/src/test/java/com/google/gerrit/acceptance/server/change/GetRelatedIT.java
@@ -67,7 +67,7 @@
         .message("subject: 2")
         .create();
     String id2 = getChangeId(testRepo, c2).get();
-    pushHead(git, "refs/for/master", false);
+    pushHead(testRepo, "refs/for/master", false);
 
     for (RevCommit c : ImmutableList.of(c2, c1)) {
       List<ChangeAndCommit> related = getRelated(getPatchSetId(c));
@@ -93,7 +93,7 @@
         .message("subject: 2")
         .create();
     String id2 = getChangeId(testRepo, c2).get();
-    pushHead(git, "refs/for/master", false);
+    pushHead(testRepo, "refs/for/master", false);
     PatchSet.Id c1ps1 = getPatchSetId(c1);
     PatchSet.Id c2ps1 = getPatchSetId(c2);
 
@@ -101,7 +101,7 @@
     testRepo.reset("HEAD~2");
     testRepo.cherryPick(c2);
     testRepo.cherryPick(c1);
-    pushHead(git, "refs/for/master", false);
+    pushHead(testRepo, "refs/for/master", false);
     PatchSet.Id c1ps2 = getPatchSetId(c1);
     PatchSet.Id c2ps2 = getPatchSetId(c2);
 
@@ -127,7 +127,7 @@
   @Test
   public void getRelatedReorderAndExtend() throws Exception {
     // Create two commits and push.
-    ObjectId initial = testRepo.getRepository().getRef("HEAD").getObjectId();
+    ObjectId initial = repo().getRef("HEAD").getObjectId();
     RevCommit c1 = commitBuilder()
         .add("a.txt", "1")
         .message("subject: 1")
@@ -138,7 +138,7 @@
         .message("subject: 2")
         .create();
     String id2 = getChangeId(testRepo, c2).get();
-    pushHead(git, "refs/for/master", false);
+    pushHead(testRepo, "refs/for/master", false);
     PatchSet.Id c1ps1 = getPatchSetId(c1);
     PatchSet.Id c2ps1 = getPatchSetId(c2);
 
@@ -151,7 +151,7 @@
         .message("subject: 3")
         .create();
     String id3 = getChangeId(testRepo, c3).get();
-    pushHead(git, "refs/for/master", false);
+    pushHead(testRepo, "refs/for/master", false);
     PatchSet.Id c1ps2 = getPatchSetId(c1);
     PatchSet.Id c2ps2 = getPatchSetId(c2);
     PatchSet.Id c3ps1 = getPatchSetId(c3);
@@ -197,7 +197,7 @@
         .message("subject: 3")
         .create();
     String id3 = getChangeId(testRepo, c3).get();
-    pushHead(git, "refs/for/master", false);
+    pushHead(testRepo, "refs/for/master", false);
 
     Change ch2 = getChange(c2).change();
     editModifier.createEdit(ch2, getPatchSet(ch2));
diff --git a/gerrit-acceptance-tests/src/test/java/com/google/gerrit/acceptance/server/change/PatchListCacheIT.java b/gerrit-acceptance-tests/src/test/java/com/google/gerrit/acceptance/server/change/PatchListCacheIT.java
index ea2cd75..57b00bc 100644
--- a/gerrit-acceptance-tests/src/test/java/com/google/gerrit/acceptance/server/change/PatchListCacheIT.java
+++ b/gerrit-acceptance-tests/src/test/java/com/google/gerrit/acceptance/server/change/PatchListCacheIT.java
@@ -55,7 +55,7 @@
         .add(FILE_D, "4")
         .message(SUBJECT_1)
         .create();
-    pushHead(git, "refs/heads/master", false);
+    pushHead(testRepo, "refs/heads/master", false);
 
     // Change 1, 1 (+FILE_A, -FILE_D)
     RevCommit c = commitBuilder()
@@ -65,7 +65,7 @@
         .insertChangeId()
         .create();
     String id = getChangeId(testRepo, c).get();
-    pushHead(git, "refs/for/master", false);
+    pushHead(testRepo, "refs/for/master", false);
 
     // Compare Change 1,1 with Base (+FILE_A, -FILE_D)
     List<PatchListEntry> entries = getCurrentPatches(id);
@@ -78,7 +78,7 @@
     c = amendBuilder()
         .add(FILE_B, "2")
         .create();
-    pushHead(git, "refs/for/master", false);
+    pushHead(testRepo, "refs/for/master", false);
     entries = getCurrentPatches(id);
 
     // Compare Change 1,2 with Base (+FILE_A, +FILE_B, -FILE_D)
@@ -95,7 +95,7 @@
         .add(FILE_D, "4")
         .message(SUBJECT_1)
         .create();
-    pushHead(git, "refs/heads/master", false);
+    pushHead(testRepo, "refs/heads/master", false);
 
     // Change 1,1 (+FILE_A, -FILE_D)
     RevCommit c = commitBuilder()
@@ -104,7 +104,7 @@
         .message(SUBJECT_2)
         .create();
     String id = getChangeId(testRepo, c).get();
-    pushHead(git, "refs/for/master", false);
+    pushHead(testRepo, "refs/for/master", false);
     List<PatchListEntry> entries = getCurrentPatches(id);
     assertThat(entries).hasSize(3);
     assertAdded(Patch.COMMIT_MSG, entries.get(0));
@@ -117,11 +117,11 @@
         .add(FILE_B, "2")
         .message(SUBJECT_3)
         .create();
-    pushHead(git, "refs/for/master", false);
+    pushHead(testRepo, "refs/for/master", false);
 
     // Change 1,2 (+FILE_A, -FILE_D))
     testRepo.cherryPick(c);
-    pushHead(git, "refs/for/master", false);
+    pushHead(testRepo, "refs/for/master", false);
 
     // Compare Change 1,2 with Base (+FILE_A, -FILE_D))
     entries = getCurrentPatches(id);
@@ -137,7 +137,7 @@
         .add(FILE_D, "4")
         .message(SUBJECT_1)
         .create();
-    pushHead(git, "refs/heads/master", false);
+    pushHead(testRepo, "refs/heads/master", false);
 
     // Change 1,1 (+FILE_A, +FILE_C, -FILE_D)
     RevCommit a = commitBuilder()
@@ -146,14 +146,14 @@
         .rm(FILE_D)
         .message(SUBJECT_2)
         .create();
-    pushHead(git, "refs/for/master", false);
+    pushHead(testRepo, "refs/for/master", false);
 
     // Change 1,2 (+FILE_A, +FILE_B, -FILE_D)
     RevCommit b = amendBuilder()
         .add(FILE_B, "2")
         .rm(FILE_C)
         .create();
-    pushHead(git, "refs/for/master", false);
+    pushHead(testRepo, "refs/for/master", false);
 
     // Compare Change 1,1 with Change 1,2 (+FILE_B)
     List<PatchListEntry>  entries = getPatches(a, b);
@@ -168,7 +168,7 @@
         .add(FILE_D, "4")
         .message(SUBJECT_1)
         .create();
-    pushHead(git, "refs/heads/master", false);
+    pushHead(testRepo, "refs/heads/master", false);
 
     // Change 1,1 (+FILE_A, -FILE_D)
     RevCommit a = commitBuilder()
@@ -176,7 +176,7 @@
         .rm(FILE_D)
         .message(SUBJECT_2)
         .create();
-    pushHead(git, "refs/for/master", false);
+    pushHead(testRepo, "refs/for/master", false);
 
     // Change 2,1 (+FILE_B)
     testRepo.reset("HEAD~1");
@@ -184,14 +184,14 @@
         .add(FILE_B, "2")
         .message(SUBJECT_3)
         .create();
-    pushHead(git, "refs/for/master", false);
+    pushHead(testRepo, "refs/for/master", false);
 
     // Change 1,2 (+FILE_A, +FILE_C, -FILE_D)
     testRepo.cherryPick(a);
     RevCommit b = amendBuilder()
         .add(FILE_C, "2")
         .create();
-    pushHead(git, "refs/for/master", false);
+    pushHead(testRepo, "refs/for/master", false);
 
     // Compare Change 1,1 with Change 1,2 (+FILE_C)
     List<PatchListEntry>  entries = getPatches(a, b);
diff --git a/gerrit-acceptance-tests/src/test/java/com/google/gerrit/acceptance/ssh/BanCommitIT.java b/gerrit-acceptance-tests/src/test/java/com/google/gerrit/acceptance/ssh/BanCommitIT.java
index 885b044..3bef84b 100644
--- a/gerrit-acceptance-tests/src/test/java/com/google/gerrit/acceptance/ssh/BanCommitIT.java
+++ b/gerrit-acceptance-tests/src/test/java/com/google/gerrit/acceptance/ssh/BanCommitIT.java
@@ -42,7 +42,7 @@
         .that(sshSession.hasError()).isFalse();
     assertThat(response.toLowerCase(Locale.US)).doesNotContain("error");
 
-    PushResult pushResult = pushHead(git, "refs/heads/master", false);
+    PushResult pushResult = pushHead(testRepo, "refs/heads/master", false);
     assertThat(pushResult.getRemoteUpdate("refs/heads/master").getMessage())
         .startsWith("contains banned commit");
   }