InputDispatcher_test.cpp revision 7b159c9a4f589da7fdab7c16f3aefea25e0e7e4f 
1/*
2 * Copyright (C) 2010 The Android Open Source Project
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 *
8 *      http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 */
16
17#include "../InputDispatcher.h"
18
19#include <gtest/gtest.h>
20#include <linux/input.h>
21
22namespace android {
23
24// An arbitrary time value.
25static const nsecs_t ARBITRARY_TIME = 1234;
26
27// An arbitrary device id.
28static const int32_t DEVICE_ID = 1;
29
30// An arbitrary display id.
31static const int32_t DISPLAY_ID = 0;
32
33// An arbitrary injector pid / uid pair that has permission to inject events.
34static const int32_t INJECTOR_PID = 999;
35static const int32_t INJECTOR_UID = 1001;
36
37
38// --- FakeInputDispatcherPolicy ---
39
40class FakeInputDispatcherPolicy : public InputDispatcherPolicyInterface {
41    InputDispatcherConfiguration mConfig;
42
43protected:
44    virtual ~FakeInputDispatcherPolicy() {
45    }
46
47public:
48    FakeInputDispatcherPolicy() {
49    }
50
51private:
52    virtual void notifyConfigurationChanged(nsecs_t) {
53    }
54
55    virtual nsecs_t notifyANR(const sp<InputApplicationHandle>&,
56            const sp<InputWindowHandle>&,
57            const String8&) {
58        return 0;
59    }
60
61    virtual void notifyInputChannelBroken(const sp<InputWindowHandle>&) {
62    }
63
64    virtual void getDispatcherConfiguration(InputDispatcherConfiguration* outConfig) {
65        *outConfig = mConfig;
66    }
67
68    virtual bool filterInputEvent(const InputEvent*, uint32_t) {
69        return true;
70    }
71
72    virtual void interceptKeyBeforeQueueing(const KeyEvent*, uint32_t&) {
73    }
74
75    virtual void interceptMotionBeforeQueueing(nsecs_t, uint32_t&) {
76    }
77
78    virtual nsecs_t interceptKeyBeforeDispatching(const sp<InputWindowHandle>&,
79            const KeyEvent*, uint32_t) {
80        return 0;
81    }
82
83    virtual bool dispatchUnhandledKey(const sp<InputWindowHandle>&,
84            const KeyEvent*, uint32_t, KeyEvent*) {
85        return false;
86    }
87
88    virtual void notifySwitch(nsecs_t, uint32_t, uint32_t, uint32_t) {
89    }
90
91    virtual void pokeUserActivity(nsecs_t, int32_t) {
92    }
93
94    virtual bool checkInjectEventsPermissionNonReentrant(int32_t, int32_t) {
95        return false;
96    }
97};
98
99
100// --- InputDispatcherTest ---
101
102class InputDispatcherTest : public testing::Test {
103protected:
104    sp<FakeInputDispatcherPolicy> mFakePolicy;
105    sp<InputDispatcher> mDispatcher;
106
107    virtual void SetUp() {
108        mFakePolicy = new FakeInputDispatcherPolicy();
109        mDispatcher = new InputDispatcher(mFakePolicy);
110    }
111
112    virtual void TearDown() {
113        mFakePolicy.clear();
114        mDispatcher.clear();
115    }
116};
117
118
119TEST_F(InputDispatcherTest, InjectInputEvent_ValidatesKeyEvents) {
120    KeyEvent event;
121
122    // Rejects undefined key actions.
123    event.initialize(DEVICE_ID, AINPUT_SOURCE_KEYBOARD,
124            /*action*/ -1, 0,
125            AKEYCODE_A, KEY_A, AMETA_NONE, 0, ARBITRARY_TIME, ARBITRARY_TIME);
126    ASSERT_EQ(INPUT_EVENT_INJECTION_FAILED, mDispatcher->injectInputEvent(
127            &event, DISPLAY_ID,
128            INJECTOR_PID, INJECTOR_UID, INPUT_EVENT_INJECTION_SYNC_NONE, 0, 0))
129            << "Should reject key events with undefined action.";
130
131    // Rejects ACTION_MULTIPLE since it is not supported despite being defined in the API.
132    event.initialize(DEVICE_ID, AINPUT_SOURCE_KEYBOARD,
133            AKEY_EVENT_ACTION_MULTIPLE, 0,
134            AKEYCODE_A, KEY_A, AMETA_NONE, 0, ARBITRARY_TIME, ARBITRARY_TIME);
135    ASSERT_EQ(INPUT_EVENT_INJECTION_FAILED, mDispatcher->injectInputEvent(
136            &event, DISPLAY_ID,
137            INJECTOR_PID, INJECTOR_UID, INPUT_EVENT_INJECTION_SYNC_NONE, 0, 0))
138            << "Should reject key events with ACTION_MULTIPLE.";
139}
140
141TEST_F(InputDispatcherTest, InjectInputEvent_ValidatesMotionEvents) {
142    MotionEvent event;
143    PointerProperties pointerProperties[MAX_POINTERS + 1];
144    PointerCoords pointerCoords[MAX_POINTERS + 1];
145    for (int i = 0; i <= MAX_POINTERS; i++) {
146        pointerProperties[i].clear();
147        pointerProperties[i].id = i;
148        pointerCoords[i].clear();
149    }
150
151    // Rejects undefined motion actions.
152    event.initialize(DEVICE_ID, AINPUT_SOURCE_TOUCHSCREEN,
153            /*action*/ -1, 0, 0, 0, AMETA_NONE, 0, 0, 0, 0, 0,
154            ARBITRARY_TIME, ARBITRARY_TIME,
155            /*pointerCount*/ 1, pointerProperties, pointerCoords);
156    ASSERT_EQ(INPUT_EVENT_INJECTION_FAILED, mDispatcher->injectInputEvent(
157            &event, DISPLAY_ID,
158            INJECTOR_PID, INJECTOR_UID, INPUT_EVENT_INJECTION_SYNC_NONE, 0, 0))
159            << "Should reject motion events with undefined action.";
160
161    // Rejects pointer down with invalid index.
162    event.initialize(DEVICE_ID, AINPUT_SOURCE_TOUCHSCREEN,
163            AMOTION_EVENT_ACTION_POINTER_DOWN | (1 << AMOTION_EVENT_ACTION_POINTER_INDEX_SHIFT),
164            0, 0, 0, AMETA_NONE, 0, 0, 0, 0, 0,
165            ARBITRARY_TIME, ARBITRARY_TIME,
166            /*pointerCount*/ 1, pointerProperties, pointerCoords);
167    ASSERT_EQ(INPUT_EVENT_INJECTION_FAILED, mDispatcher->injectInputEvent(
168            &event, DISPLAY_ID,
169            INJECTOR_PID, INJECTOR_UID, INPUT_EVENT_INJECTION_SYNC_NONE, 0, 0))
170            << "Should reject motion events with pointer down index too large.";
171
172    event.initialize(DEVICE_ID, AINPUT_SOURCE_TOUCHSCREEN,
173            AMOTION_EVENT_ACTION_POINTER_DOWN | (-1 << AMOTION_EVENT_ACTION_POINTER_INDEX_SHIFT),
174            0, 0, 0, AMETA_NONE, 0, 0, 0, 0, 0,
175            ARBITRARY_TIME, ARBITRARY_TIME,
176            /*pointerCount*/ 1, pointerProperties, pointerCoords);
177    ASSERT_EQ(INPUT_EVENT_INJECTION_FAILED, mDispatcher->injectInputEvent(
178            &event, DISPLAY_ID,
179            INJECTOR_PID, INJECTOR_UID, INPUT_EVENT_INJECTION_SYNC_NONE, 0, 0))
180            << "Should reject motion events with pointer down index too small.";
181
182    // Rejects pointer up with invalid index.
183    event.initialize(DEVICE_ID, AINPUT_SOURCE_TOUCHSCREEN,
184            AMOTION_EVENT_ACTION_POINTER_UP | (1 << AMOTION_EVENT_ACTION_POINTER_INDEX_SHIFT),
185            0, 0, 0, AMETA_NONE, 0, 0, 0, 0, 0,
186            ARBITRARY_TIME, ARBITRARY_TIME,
187            /*pointerCount*/ 1, pointerProperties, pointerCoords);
188    ASSERT_EQ(INPUT_EVENT_INJECTION_FAILED, mDispatcher->injectInputEvent(
189            &event, DISPLAY_ID,
190            INJECTOR_PID, INJECTOR_UID, INPUT_EVENT_INJECTION_SYNC_NONE, 0, 0))
191            << "Should reject motion events with pointer up index too large.";
192
193    event.initialize(DEVICE_ID, AINPUT_SOURCE_TOUCHSCREEN,
194            AMOTION_EVENT_ACTION_POINTER_UP | (-1 << AMOTION_EVENT_ACTION_POINTER_INDEX_SHIFT),
195            0, 0, 0, AMETA_NONE, 0, 0, 0, 0, 0,
196            ARBITRARY_TIME, ARBITRARY_TIME,
197            /*pointerCount*/ 1, pointerProperties, pointerCoords);
198    ASSERT_EQ(INPUT_EVENT_INJECTION_FAILED, mDispatcher->injectInputEvent(
199            &event, DISPLAY_ID,
200            INJECTOR_PID, INJECTOR_UID, INPUT_EVENT_INJECTION_SYNC_NONE, 0, 0))
201            << "Should reject motion events with pointer up index too small.";
202
203    // Rejects motion events with invalid number of pointers.
204    event.initialize(DEVICE_ID, AINPUT_SOURCE_TOUCHSCREEN,
205            AMOTION_EVENT_ACTION_DOWN, 0, 0, 0, AMETA_NONE, 0, 0, 0, 0, 0,
206            ARBITRARY_TIME, ARBITRARY_TIME,
207            /*pointerCount*/ 0, pointerProperties, pointerCoords);
208    ASSERT_EQ(INPUT_EVENT_INJECTION_FAILED, mDispatcher->injectInputEvent(
209            &event, DISPLAY_ID,
210            INJECTOR_PID, INJECTOR_UID, INPUT_EVENT_INJECTION_SYNC_NONE, 0, 0))
211            << "Should reject motion events with 0 pointers.";
212
213    event.initialize(DEVICE_ID, AINPUT_SOURCE_TOUCHSCREEN,
214            AMOTION_EVENT_ACTION_DOWN, 0, 0, 0, AMETA_NONE, 0, 0, 0, 0, 0,
215            ARBITRARY_TIME, ARBITRARY_TIME,
216            /*pointerCount*/ MAX_POINTERS + 1, pointerProperties, pointerCoords);
217    ASSERT_EQ(INPUT_EVENT_INJECTION_FAILED, mDispatcher->injectInputEvent(
218            &event, DISPLAY_ID,
219            INJECTOR_PID, INJECTOR_UID, INPUT_EVENT_INJECTION_SYNC_NONE, 0, 0))
220            << "Should reject motion events with more than MAX_POINTERS pointers.";
221
222    // Rejects motion events with invalid pointer ids.
223    pointerProperties[0].id = -1;
224    event.initialize(DEVICE_ID, AINPUT_SOURCE_TOUCHSCREEN,
225            AMOTION_EVENT_ACTION_DOWN, 0, 0, 0, AMETA_NONE, 0, 0, 0, 0, 0,
226            ARBITRARY_TIME, ARBITRARY_TIME,
227            /*pointerCount*/ 1, pointerProperties, pointerCoords);
228    ASSERT_EQ(INPUT_EVENT_INJECTION_FAILED, mDispatcher->injectInputEvent(
229            &event, DISPLAY_ID,
230            INJECTOR_PID, INJECTOR_UID, INPUT_EVENT_INJECTION_SYNC_NONE, 0, 0))
231            << "Should reject motion events with pointer ids less than 0.";
232
233    pointerProperties[0].id = MAX_POINTER_ID + 1;
234    event.initialize(DEVICE_ID, AINPUT_SOURCE_TOUCHSCREEN,
235            AMOTION_EVENT_ACTION_DOWN, 0, 0, 0, AMETA_NONE, 0, 0, 0, 0, 0,
236            ARBITRARY_TIME, ARBITRARY_TIME,
237            /*pointerCount*/ 1, pointerProperties, pointerCoords);
238    ASSERT_EQ(INPUT_EVENT_INJECTION_FAILED, mDispatcher->injectInputEvent(
239            &event, DISPLAY_ID,
240            INJECTOR_PID, INJECTOR_UID, INPUT_EVENT_INJECTION_SYNC_NONE, 0, 0))
241            << "Should reject motion events with pointer ids greater than MAX_POINTER_ID.";
242
243    // Rejects motion events with duplicate pointer ids.
244    pointerProperties[0].id = 1;
245    pointerProperties[1].id = 1;
246    event.initialize(DEVICE_ID, AINPUT_SOURCE_TOUCHSCREEN,
247            AMOTION_EVENT_ACTION_DOWN, 0, 0, 0, AMETA_NONE, 0, 0, 0, 0, 0,
248            ARBITRARY_TIME, ARBITRARY_TIME,
249            /*pointerCount*/ 2, pointerProperties, pointerCoords);
250    ASSERT_EQ(INPUT_EVENT_INJECTION_FAILED, mDispatcher->injectInputEvent(
251            &event, DISPLAY_ID,
252            INJECTOR_PID, INJECTOR_UID, INPUT_EVENT_INJECTION_SYNC_NONE, 0, 0))
253            << "Should reject motion events with duplicate pointer ids.";
254}
255
256} // namespace android
257