Consolidate all wrappers used for testing.

- Add the wrapper package and move all wrappers to the wrapper package.
- Get rid of some wrapper interface/impl implementation and have a
wrapper class directly.

Bug: 65634579
Test: make RunSettingsRoboTests
Change-Id: Ic757d8f7bacfa7a034c7e692205bc1dc4b0e1de1

src/com/android/settings/wrapper/AccessibilityServiceInfoWrapper.java

@@ -0,0 +1,47 @@
+/*
+ * 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.android.settings.wrapper;
+
+import android.accessibilityservice.AccessibilityServiceInfo;
+import android.content.ComponentName;
+
+/**
+ * This class replicates a subset of the
+ * {@link android.accessibilityservice.AccessibilityServiceInfo}. The class
+ * exists so that we can use a thin wrapper around it in production code and a mock in tests.
+ * We cannot directly mock or shadow it, because some of the methods we rely on are newer than
+ * the API version supported by Robolectric.
+ */
+public class AccessibilityServiceInfoWrapper {
+
+    private final AccessibilityServiceInfo mServiceInfo;
+
+    public AccessibilityServiceInfoWrapper(AccessibilityServiceInfo serviceInfo) {
+        mServiceInfo = serviceInfo;
+    }
+
+    /**
+     * Returns the real {@code AccessibilityServiceInfo} object.
+     */
+    public AccessibilityServiceInfo getAccessibilityServiceInfo() {
+        return mServiceInfo;
+    }
+
+    public ComponentName getComponentName() {
+        return mServiceInfo.getComponentName();
+    }
+}