Tidy up our tests

- Remove redundant testutils file
- Update PMSTest comment

Bug: 286043820
Test: atest DisplayServiceTests PowerServiceTests
Change-Id: Icb2df8321534a5e39d57bde2c3850316cf1ba712
diff --git a/services/tests/powerservicetests/src/com/android/server/power/PowerManagerServiceTest.java b/services/tests/powerservicetests/src/com/android/server/power/PowerManagerServiceTest.java
index 9bce536..77b8a83 100644
--- a/services/tests/powerservicetests/src/com/android/server/power/PowerManagerServiceTest.java
+++ b/services/tests/powerservicetests/src/com/android/server/power/PowerManagerServiceTest.java
@@ -137,7 +137,7 @@
  * Tests for {@link com.android.server.power.PowerManagerService}.
  *
  * Build/Install/Run:
- *  atest FrameworksServicesTests:PowerManagerServiceTest
+ *  atest PowerServiceTests:PowerManagerServiceTest
  */
 @SuppressWarnings("GuardedBy")
 public class PowerManagerServiceTest {
diff --git a/services/tests/servicestests/Android.bp b/services/tests/servicestests/Android.bp
index 173c5f5..3272ce6 100644
--- a/services/tests/servicestests/Android.bp
+++ b/services/tests/servicestests/Android.bp
@@ -134,7 +134,6 @@
     name: "servicestests-core-utils",
     srcs: [
         "src/com/android/server/am/DeviceConfigSession.java",
-        "src/com/android/server/display/TestUtils.java",
         "src/com/android/server/pm/PackageSettingBuilder.java",
         "src/com/android/server/pm/parsing/TestPackageParser2.kt",
     ],
diff --git a/services/tests/servicestests/src/com/android/server/display/TestUtils.java b/services/tests/servicestests/src/com/android/server/display/TestUtils.java
deleted file mode 100644
index 8b45145..0000000
--- a/services/tests/servicestests/src/com/android/server/display/TestUtils.java
+++ /dev/null
@@ -1,94 +0,0 @@
-/*
- * Copyright (C) 2019 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.android.server.display;
-
-import android.hardware.Sensor;
-import android.hardware.SensorEvent;
-import android.hardware.input.InputSensorInfo;
-import android.os.Parcel;
-import android.os.SystemClock;
-import android.view.DisplayAddress;
-
-import java.lang.reflect.Constructor;
-import java.lang.reflect.Field;
-import java.lang.reflect.Method;
-
-public final class TestUtils {
-
-    public static SensorEvent createSensorEvent(Sensor sensor, int value) throws Exception {
-        final Constructor<SensorEvent> constructor =
-                SensorEvent.class.getDeclaredConstructor(int.class);
-        constructor.setAccessible(true);
-        final SensorEvent event = constructor.newInstance(1);
-        event.sensor = sensor;
-        event.values[0] = value;
-        event.timestamp = SystemClock.elapsedRealtimeNanos();
-        return event;
-    }
-
-
-    public static void setSensorType(Sensor sensor, int type, String strType) throws Exception {
-        Method setter = Sensor.class.getDeclaredMethod("setType", Integer.TYPE);
-        setter.setAccessible(true);
-        setter.invoke(sensor, type);
-        if (strType != null) {
-            Field f = sensor.getClass().getDeclaredField("mStringType");
-            f.setAccessible(true);
-            f.set(sensor, strType);
-        }
-    }
-
-    public static void setMaximumRange(Sensor sensor, float maximumRange) throws Exception {
-        Method setter = Sensor.class.getDeclaredMethod("setRange", Float.TYPE, Float.TYPE);
-        setter.setAccessible(true);
-        setter.invoke(sensor, maximumRange, 1);
-    }
-
-    public static Sensor createSensor(int type, String strType) throws Exception {
-        Constructor<Sensor> constr = Sensor.class.getDeclaredConstructor();
-        constr.setAccessible(true);
-        Sensor sensor = constr.newInstance();
-        setSensorType(sensor, type, strType);
-        return sensor;
-    }
-
-    public static Sensor createSensor(int type, String strType, float maximumRange)
-            throws Exception {
-        Constructor<Sensor> constr = Sensor.class.getDeclaredConstructor();
-        constr.setAccessible(true);
-        Sensor sensor = constr.newInstance();
-        setSensorType(sensor, type, strType);
-        setMaximumRange(sensor, maximumRange);
-        return sensor;
-    }
-
-    public static Sensor createSensor(String type, String name) {
-        return new Sensor(new InputSensorInfo(
-                name, "vendor", 0, 0, 0, 1f, 1f, 1, 1, 1, 1,
-                type, "", 0, 0, 0));
-    }
-
-    /**
-     * Create a custom {@link DisplayAddress} to ensure we're not relying on any specific
-     * display-address implementation in our code. Intentionally uses default object (reference)
-     * equality rules.
-     */
-    public static class TestDisplayAddress extends DisplayAddress {
-        @Override
-        public void writeToParcel(Parcel out, int flags) { }
-    }
-}