diff --git a/gerrit-acceptance-tests/src/test/java/com/google/gerrit/acceptance/server/project/ProjectWatchIT.java b/gerrit-acceptance-tests/src/test/java/com/google/gerrit/acceptance/server/project/ProjectWatchIT.java
index abd84ef..93134d3 100644
--- a/gerrit-acceptance-tests/src/test/java/com/google/gerrit/acceptance/server/project/ProjectWatchIT.java
+++ b/gerrit-acceptance-tests/src/test/java/com/google/gerrit/acceptance/server/project/ProjectWatchIT.java
@@ -19,6 +19,7 @@
 import com.google.gerrit.acceptance.AbstractDaemonTest;
 import com.google.gerrit.acceptance.NoHttpd;
 import com.google.gerrit.acceptance.PushOneCommit;
+import com.google.gerrit.acceptance.Sandboxed;
 import com.google.gerrit.acceptance.TestAccount;
 import com.google.gerrit.extensions.client.ProjectWatchInfo;
 import com.google.gerrit.extensions.restapi.RestApiException;
@@ -38,6 +39,7 @@
 import java.util.List;
 
 @NoHttpd
+@Sandboxed
 public class ProjectWatchIT extends AbstractDaemonTest {
   @Test
   public void newPatchSetsNotifyConfig() throws Exception {
@@ -161,6 +163,80 @@
     assertThat(m.body()).contains("Gerrit-PatchSet: 1\n");
   }
 
+  @Test
+  public void watchAllProjects() throws Exception {
+    String anyProject = createProject("anyProject").get();
+    setApiUser(user);
+
+    // watch the All-Projects project to watch all projects
+    watch(allProjects.get(), null);
+
+    // push a change to any project -> should trigger email notification
+    setApiUser(admin);
+    TestRepository<InMemoryRepository> anyRepo =
+        cloneProject(new Project.NameKey(anyProject), admin);
+    PushOneCommit.Result r = pushFactory
+        .create(db, admin.getIdent(), anyRepo, "TRIGGER", "a", "a1")
+        .to("refs/for/master");
+    r.assertOkStatus();
+
+    // assert email notification
+    List<Message> messages = sender.getMessages();
+    assertThat(messages).hasSize(1);
+    Message m = messages.get(0);
+    assertThat(m.rcpt()).containsExactly(user.emailAddress);
+    assertThat(m.body()).contains("Change subject: TRIGGER\n");
+    assertThat(m.body()).contains("Gerrit-PatchSet: 1\n");
+  }
+
+  @Test
+  public void watchFileAllProjects() throws Exception {
+    String anyProject = createProject("anyProject").get();
+    setApiUser(user);
+
+    // watch file in All-Projects project as user to watch the file in all
+    // projects
+    watch(allProjects.get(), "file:a.txt");
+
+    // push a change to watched file in any project -> should trigger email
+    // notification for user
+    setApiUser(admin);
+    TestRepository<InMemoryRepository> anyRepo =
+        cloneProject(new Project.NameKey(anyProject), admin);
+    PushOneCommit.Result r = pushFactory
+        .create(db, admin.getIdent(), anyRepo, "TRIGGER", "a.txt", "a1")
+        .to("refs/for/master");
+    r.assertOkStatus();
+
+    // assert email notification for user
+    List<Message> messages = sender.getMessages();
+    assertThat(messages).hasSize(1);
+    Message m = messages.get(0);
+    assertThat(m.rcpt()).containsExactly(user.emailAddress);
+    assertThat(m.body()).contains("Change subject: TRIGGER\n");
+    assertThat(m.body()).contains("Gerrit-PatchSet: 1\n");
+    sender.clear();
+
+    // watch project as user2
+    TestAccount user2 = accounts.create("user2", "user2@test.com", "User2");
+    setApiUser(user2);
+    watch(anyProject, null);
+
+    // push a change to non-watched file in any project -> should not trigger
+    // email notification for user, only for user2
+    r = pushFactory.create(db, admin.getIdent(), anyRepo,
+        "TRIGGER_USER2", "b.txt", "b1").to("refs/for/master");
+    r.assertOkStatus();
+
+    // assert email notification
+    messages = sender.getMessages();
+    assertThat(messages).hasSize(1);
+    m = messages.get(0);
+    assertThat(m.rcpt()).containsExactly(user2.emailAddress);
+    assertThat(m.body()).contains("Change subject: TRIGGER_USER2\n");
+    assertThat(m.body()).contains("Gerrit-PatchSet: 1\n");
+  }
+
   private void watch(String project, String filter)
       throws RestApiException {
     List<ProjectWatchInfo> projectsToWatch = new ArrayList<>();