1 /*
2  * Copyright (C) 2017 The Android Open Source Project
3  *
4  * Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file
5  * except in compliance with the License. You may obtain a copy of the License at
6  *
7  *      http://www.apache.org/licenses/LICENSE-2.0
8  *
9  * Unless required by applicable law or agreed to in writing, software distributed under the
10  * License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
11  * KIND, either express or implied. See the License for the specific language governing
12  * permissions and limitations under the License.
13  */
14 
15 package com.android.systemui;
16 
17 import static org.mockito.Mockito.mock;
18 
19 import android.content.Context;
20 import android.util.ArrayMap;
21 import android.util.ArraySet;
22 import android.util.Log;
23 
24 public class TestableDependency extends Dependency {
25     private static final String TAG = "TestableDependency";
26 
27     private final ArrayMap<Object, Object> mObjs = new ArrayMap<>();
28     private final ArraySet<Object> mInstantiatedObjects = new ArraySet<>();
29 
TestableDependency(Context context)30     public TestableDependency(Context context) {
31         SystemUIFactory.createFromConfig(context);
32         SystemUIFactory.getInstance().getRootComponent()
33                 .createDependency()
34                 .createSystemUI(this);
35         start();
36     }
37 
injectMockDependency(Class<T> cls)38     public <T> T injectMockDependency(Class<T> cls) {
39         final T mock = mock(cls);
40         injectTestDependency(cls, mock);
41         return mock;
42     }
43 
injectTestDependency(DependencyKey<T> key, T obj)44     public <T> void injectTestDependency(DependencyKey<T> key, T obj) {
45         mObjs.put(key, obj);
46     }
47 
injectTestDependency(Class<T> key, T obj)48     public <T> void injectTestDependency(Class<T> key, T obj) {
49         if (mInstantiatedObjects.contains(key)) {
50             Log.d(TAG, key + " was already initialized but overriding with testDependency.");
51         }
52         mObjs.put(key, obj);
53     }
54 
55     @Override
createDependency(Object key)56     protected <T> T createDependency(Object key) {
57         if (mObjs.containsKey(key)) return (T) mObjs.get(key);
58 
59         mInstantiatedObjects.add(key);
60         return super.createDependency(key);
61     }
62 
63     @Override
autoRegisterModulesForDump()64     protected boolean autoRegisterModulesForDump() {
65         return false;
66     }
67 
hasInstantiatedDependency(Class<T> key)68     public <T> boolean hasInstantiatedDependency(Class<T> key) {
69         return mObjs.containsKey(key) || mInstantiatedObjects.contains(key);
70     }
71 }
72