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diff --git a/java/com/google/gerrit/acceptance/InMemoryTestingDatabaseModule.java b/java/com/google/gerrit/acceptance/InMemoryTestingDatabaseModule.java
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+++ b/java/com/google/gerrit/acceptance/InMemoryTestingDatabaseModule.java
@@ -0,0 +1,140 @@
+// Copyright (C) 2013 The Android Open Source Project
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+// http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package com.google.gerrit.acceptance;
+
+import static com.google.inject.Scopes.SINGLETON;
+
+import com.google.gerrit.common.Nullable;
+import com.google.gerrit.extensions.events.LifecycleListener;
+import com.google.gerrit.lifecycle.LifecycleModule;
+import com.google.gerrit.metrics.DisabledMetricMaker;
+import com.google.gerrit.metrics.MetricMaker;
+import com.google.gerrit.reviewdb.server.ReviewDb;
+import com.google.gerrit.server.config.GerritServerConfig;
+import com.google.gerrit.server.config.SitePath;
+import com.google.gerrit.server.config.SitePaths;
+import com.google.gerrit.server.config.TrackingFooters;
+import com.google.gerrit.server.config.TrackingFootersProvider;
+import com.google.gerrit.server.git.GitRepositoryManager;
+import com.google.gerrit.server.notedb.ChangeBundleReader;
+import com.google.gerrit.server.notedb.GwtormChangeBundleReader;
+import com.google.gerrit.server.notedb.NotesMigration;
+import com.google.gerrit.server.schema.DataSourceType;
+import com.google.gerrit.server.schema.NotesMigrationSchemaFactory;
+import com.google.gerrit.server.schema.ReviewDbFactory;
+import com.google.gerrit.server.schema.SchemaModule;
+import com.google.gerrit.server.schema.SchemaVersion;
+import com.google.gerrit.testing.InMemoryDatabase;
+import com.google.gerrit.testing.InMemoryH2Type;
+import com.google.gerrit.testing.InMemoryRepositoryManager;
+import com.google.gwtorm.server.OrmException;
+import com.google.gwtorm.server.OrmRuntimeException;
+import com.google.gwtorm.server.SchemaFactory;
+import com.google.inject.Inject;
+import com.google.inject.Key;
+import com.google.inject.ProvisionException;
+import com.google.inject.TypeLiteral;
+import com.google.inject.util.Providers;
+import java.io.IOException;
+import java.nio.file.Files;
+import java.nio.file.Path;
+import org.eclipse.jgit.lib.Config;
+
+class InMemoryTestingDatabaseModule extends LifecycleModule {
+  private final Config cfg;
+  private final Path sitePath;
+  @Nullable private final InMemoryRepositoryManager repoManager;
+  @Nullable private final InMemoryDatabase.Instance inMemoryDatabaseInstance;
+
+  InMemoryTestingDatabaseModule(
+      Config cfg,
+      Path sitePath,
+      @Nullable InMemoryRepositoryManager repoManager,
+      @Nullable InMemoryDatabase.Instance inMemoryDatabaseInstance) {
+    this.cfg = cfg;
+    this.sitePath = sitePath;
+    this.repoManager = repoManager;
+    this.inMemoryDatabaseInstance = inMemoryDatabaseInstance;
+    makeSiteDirs(sitePath);
+  }
+
+  @Override
+  protected void configure() {
+    bind(Config.class).annotatedWith(GerritServerConfig.class).toInstance(cfg);
+
+    // TODO(dborowitz): Use jimfs.
+    bind(Path.class).annotatedWith(SitePath.class).toInstance(sitePath);
+
+    if (repoManager != null) {
+      bind(GitRepositoryManager.class).toInstance(repoManager);
+    } else {
+      bind(GitRepositoryManager.class).to(InMemoryRepositoryManager.class);
+      bind(InMemoryRepositoryManager.class).in(SINGLETON);
+    }
+
+    bind(MetricMaker.class).to(DisabledMetricMaker.class);
+    bind(DataSourceType.class).to(InMemoryH2Type.class);
+
+    install(new NotesMigration.Module());
+    TypeLiteral<SchemaFactory<ReviewDb>> schemaFactory =
+        new TypeLiteral<SchemaFactory<ReviewDb>>() {};
+    bind(schemaFactory).to(NotesMigrationSchemaFactory.class);
+    bind(InMemoryDatabase.Instance.class).toProvider(Providers.of(inMemoryDatabaseInstance));
+    bind(Key.get(schemaFactory, ReviewDbFactory.class)).to(InMemoryDatabase.class);
+    bind(InMemoryDatabase.class).in(SINGLETON);
+    bind(ChangeBundleReader.class).to(GwtormChangeBundleReader.class);
+
+    listener().to(CreateDatabase.class);
+
+    bind(SitePaths.class);
+    bind(TrackingFooters.class).toProvider(TrackingFootersProvider.class).in(SINGLETON);
+
+    install(new SchemaModule());
+    bind(SchemaVersion.class).to(SchemaVersion.C);
+
+    install(new SshdModule());
+  }
+
+  static class CreateDatabase implements LifecycleListener {
+    private final InMemoryDatabase mem;
+
+    @Inject
+    CreateDatabase(InMemoryDatabase mem) {
+      this.mem = mem;
+    }
+
+    @Override
+    public void start() {
+      try {
+        mem.create();
+      } catch (OrmException e) {
+        throw new OrmRuntimeException(e);
+      }
+    }
+
+    @Override
+    public void stop() {
+      mem.getDbInstance().drop();
+    }
+  }
+
+  private static void makeSiteDirs(Path p) {
+    try {
+      Files.createDirectories(p.resolve("etc"));
+    } catch (IOException e) {
+      throw new ProvisionException(e.getMessage(), e);
+    }
+  }
+}