1 /*
2 * Copyright 2023 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 "MultiTouchMotionAccumulator.h"
18 #include "InputMapperTest.h"
19
20 namespace android {
21
22 class MultiTouchMotionAccumulatorTest : public InputMapperUnitTest {
23 protected:
24 static constexpr size_t SLOT_COUNT = 8;
25
SetUp()26 void SetUp() override { InputMapperUnitTest::SetUp(); }
27
28 MultiTouchMotionAccumulator mMotionAccumulator;
29
processMotionEvent(int32_t type,int32_t code,int32_t value)30 void processMotionEvent(int32_t type, int32_t code, int32_t value) {
31 RawEvent event;
32 event.when = ARBITRARY_TIME;
33 event.readTime = READ_TIME;
34 event.deviceId = EVENTHUB_ID;
35 event.type = type;
36 event.code = code;
37 event.value = value;
38 mMotionAccumulator.process(event);
39 }
40 };
41
TEST_F(MultiTouchMotionAccumulatorTest,ActiveSlotCountUsingSlotsProtocol)42 TEST_F(MultiTouchMotionAccumulatorTest, ActiveSlotCountUsingSlotsProtocol) {
43 mMotionAccumulator.configure(*mDeviceContext, SLOT_COUNT, /*usingSlotsProtocol=*/true);
44 // We expect active slot count to match the touches being tracked
45 // first touch
46 processMotionEvent(EV_ABS, ABS_MT_SLOT, 0);
47 processMotionEvent(EV_ABS, ABS_MT_TRACKING_ID, 123);
48 processMotionEvent(EV_SYN, SYN_REPORT, 0);
49 ASSERT_EQ(1u, mMotionAccumulator.getActiveSlotsCount());
50
51 // second touch
52 processMotionEvent(EV_ABS, ABS_MT_SLOT, 1);
53 processMotionEvent(EV_ABS, ABS_MT_TRACKING_ID, 456);
54 processMotionEvent(EV_SYN, SYN_REPORT, 0);
55 ASSERT_EQ(2u, mMotionAccumulator.getActiveSlotsCount());
56
57 // second lifted
58 processMotionEvent(EV_ABS, ABS_MT_TRACKING_ID, -1);
59 processMotionEvent(EV_SYN, SYN_REPORT, 0);
60 ASSERT_EQ(1u, mMotionAccumulator.getActiveSlotsCount());
61
62 // first lifted
63 processMotionEvent(EV_ABS, ABS_MT_SLOT, 0);
64 processMotionEvent(EV_ABS, ABS_MT_TRACKING_ID, -1);
65 processMotionEvent(EV_SYN, SYN_REPORT, 0);
66 ASSERT_EQ(0u, mMotionAccumulator.getActiveSlotsCount());
67 }
68
TEST_F(MultiTouchMotionAccumulatorTest,ActiveSlotCountNotUsingSlotsProtocol)69 TEST_F(MultiTouchMotionAccumulatorTest, ActiveSlotCountNotUsingSlotsProtocol) {
70 mMotionAccumulator.configure(*mDeviceContext, SLOT_COUNT, /*usingSlotsProtocol=*/false);
71
72 // first touch
73 processMotionEvent(EV_ABS, ABS_MT_POSITION_X, 0);
74 processMotionEvent(EV_ABS, ABS_MT_POSITION_Y, 0);
75 processMotionEvent(EV_SYN, SYN_MT_REPORT, 0);
76 ASSERT_EQ(1u, mMotionAccumulator.getActiveSlotsCount());
77
78 // second touch
79 processMotionEvent(EV_ABS, ABS_MT_POSITION_X, 50);
80 processMotionEvent(EV_ABS, ABS_MT_POSITION_Y, 50);
81 processMotionEvent(EV_SYN, SYN_MT_REPORT, 0);
82 ASSERT_EQ(2u, mMotionAccumulator.getActiveSlotsCount());
83
84 // reset
85 mMotionAccumulator.finishSync();
86 ASSERT_EQ(0u, mMotionAccumulator.getActiveSlotsCount());
87 }
88
89 } // namespace android
90