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diff --git a/javatests/com/google/gerrit/acceptance/server/mail/NotificationMailFormatIT.java b/javatests/com/google/gerrit/acceptance/server/mail/NotificationMailFormatIT.java
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+// Copyright (C) 2017 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.server.mail;
+
+import static com.google.common.truth.Truth.assertThat;
+
+import com.google.gerrit.acceptance.AbstractDaemonTest;
+import com.google.gerrit.acceptance.PushOneCommit;
+import com.google.gerrit.extensions.api.changes.ReviewInput;
+import com.google.gerrit.extensions.client.GeneralPreferencesInfo;
+import com.google.gerrit.extensions.client.GeneralPreferencesInfo.EmailFormat;
+import com.google.gerrit.testing.FakeEmailSender;
+import org.junit.Test;
+
+public class NotificationMailFormatIT extends AbstractDaemonTest {
+
+  @Test
+  public void userReceivesPlaintextEmail() throws Exception {
+    // Set user preference to receive only plaintext content
+    GeneralPreferencesInfo i = new GeneralPreferencesInfo();
+    i.emailFormat = EmailFormat.PLAINTEXT;
+    gApi.accounts().id(admin.getId().toString()).setPreferences(i);
+
+    // Create change as admin and review as user
+    PushOneCommit.Result r = createChange();
+    setApiUser(user);
+    gApi.changes().id(r.getChangeId()).current().review(ReviewInput.recommend());
+
+    // Check that admin has received only plaintext content
+    assertThat(sender.getMessages()).hasSize(1);
+    FakeEmailSender.Message m = sender.getMessages().get(0);
+    assertThat(m.body()).isNotNull();
+    assertThat(m.htmlBody()).isNull();
+    assertMailReplyTo(m, admin.email);
+    assertMailReplyTo(m, user.email);
+
+    // Reset user preference
+    setApiUser(admin);
+    i.emailFormat = EmailFormat.HTML_PLAINTEXT;
+    gApi.accounts().id(admin.getId().toString()).setPreferences(i);
+  }
+
+  @Test
+  public void userReceivesHtmlAndPlaintextEmail() throws Exception {
+    // Create change as admin and review as user
+    PushOneCommit.Result r = createChange();
+    setApiUser(user);
+    gApi.changes().id(r.getChangeId()).current().review(ReviewInput.recommend());
+
+    // Check that admin has received both HTML and plaintext content
+    assertThat(sender.getMessages()).hasSize(1);
+    FakeEmailSender.Message m = sender.getMessages().get(0);
+    assertThat(m.body()).isNotNull();
+    assertThat(m.htmlBody()).isNotNull();
+    assertMailReplyTo(m, admin.email);
+    assertMailReplyTo(m, user.email);
+  }
+}