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diff --git a/javatests/com/google/gerrit/acceptance/rest/change/PredicateIT.java b/javatests/com/google/gerrit/acceptance/rest/change/PredicateIT.java
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+// Copyright (C) 2021 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.rest.change;
+
+import static com.google.common.truth.Truth.assertThat;
+
+import com.google.gerrit.acceptance.AbstractPredicateTest;
+import com.google.gerrit.acceptance.RestResponse;
+import com.google.gerrit.entities.Change;
+import com.google.gson.reflect.TypeToken;
+import java.util.List;
+import java.util.Map;
+import org.junit.Test;
+
+public class PredicateIT extends AbstractPredicateTest {
+
+  @Test
+  public void testLabelPredicate() throws Exception {
+    try (AutoCloseable ignored = installPlugin(PLUGIN_NAME, PluginModule.class)) {
+      Change.Id changeId = createChange().getChange().getId();
+      approve(String.valueOf(changeId.get()));
+      List<MyInfo> myInfos =
+          pluginInfoFromSingletonList(
+              adminRestSession.get("/changes/?--my-plugin--sample&q=change:" + changeId.get()));
+
+      assertThat(myInfos).hasSize(1);
+      assertThat(myInfos.get(0).name).isEqualTo(PLUGIN_NAME);
+      assertThat(myInfos.get(0).message).isEqualTo("matched");
+    }
+  }
+
+  public List<MyInfo> pluginInfoFromSingletonList(RestResponse res) throws Exception {
+    res.assertOK();
+    List<Map<String, Object>> changeInfos =
+        GSON.fromJson(res.getReader(), new TypeToken<List<Map<String, Object>>>() {}.getType());
+
+    assertThat(changeInfos).hasSize(1);
+    return decodeRawPluginsList(changeInfos.get(0).get("plugins"));
+  }
+}