1 /*
2  * Copyright (C) 2018 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 <functional>
18 #include <string_view>
19 
20 #include <gmock/gmock.h>
21 #include <gtest/gtest.h>
22 
23 #include "DisplayHardware/DisplayIdentification.h"
24 
25 namespace android {
26 namespace {
27 
28 const unsigned char kInternalEdid[] =
29         "\x00\xff\xff\xff\xff\xff\xff\x00\x4c\xa3\x42\x31\x00\x00\x00\x00"
30         "\x00\x15\x01\x03\x80\x1a\x10\x78\x0a\xd3\xe5\x95\x5c\x60\x90\x27"
31         "\x19\x50\x54\x00\x00\x00\x01\x01\x01\x01\x01\x01\x01\x01\x01\x01"
32         "\x01\x01\x01\x01\x01\x01\x9e\x1b\x00\xa0\x50\x20\x12\x30\x10\x30"
33         "\x13\x00\x05\xa3\x10\x00\x00\x19\x00\x00\x00\x0f\x00\x00\x00\x00"
34         "\x00\x00\x00\x00\x00\x23\x87\x02\x64\x00\x00\x00\x00\xfe\x00\x53"
35         "\x41\x4d\x53\x55\x4e\x47\x0a\x20\x20\x20\x20\x20\x00\x00\x00\xfe"
36         "\x00\x31\x32\x31\x41\x54\x31\x31\x2d\x38\x30\x31\x0a\x20\x00\x45";
37 
38 const unsigned char kExternalEdid[] =
39         "\x00\xff\xff\xff\xff\xff\xff\x00\x22\xf0\x6c\x28\x01\x01\x01\x01"
40         "\x02\x16\x01\x04\xb5\x40\x28\x78\xe2\x8d\x85\xad\x4f\x35\xb1\x25"
41         "\x0e\x50\x54\x00\x00\x00\x01\x01\x01\x01\x01\x01\x01\x01\x01\x01"
42         "\x01\x01\x01\x01\x01\x01\xe2\x68\x00\xa0\xa0\x40\x2e\x60\x30\x20"
43         "\x36\x00\x81\x90\x21\x00\x00\x1a\xbc\x1b\x00\xa0\x50\x20\x17\x30"
44         "\x30\x20\x36\x00\x81\x90\x21\x00\x00\x1a\x00\x00\x00\xfc\x00\x48"
45         "\x50\x20\x5a\x52\x33\x30\x77\x0a\x20\x20\x20\x20\x00\x00\x00\xff"
46         "\x00\x43\x4e\x34\x32\x30\x32\x31\x33\x37\x51\x0a\x20\x20\x00\x71";
47 
48 // Extended EDID with timing extension.
49 const unsigned char kExternalEedid[] =
50         "\x00\xff\xff\xff\xff\xff\xff\x00\x4c\x2d\xfe\x08\x00\x00\x00\x00"
51         "\x29\x15\x01\x03\x80\x10\x09\x78\x0a\xee\x91\xa3\x54\x4c\x99\x26"
52         "\x0f\x50\x54\xbd\xef\x80\x71\x4f\x81\xc0\x81\x00\x81\x80\x95\x00"
53         "\xa9\xc0\xb3\x00\x01\x01\x02\x3a\x80\x18\x71\x38\x2d\x40\x58\x2c"
54         "\x45\x00\xa0\x5a\x00\x00\x00\x1e\x66\x21\x56\xaa\x51\x00\x1e\x30"
55         "\x46\x8f\x33\x00\xa0\x5a\x00\x00\x00\x1e\x00\x00\x00\xfd\x00\x18"
56         "\x4b\x0f\x51\x17\x00\x0a\x20\x20\x20\x20\x20\x20\x00\x00\x00\xfc"
57         "\x00\x53\x41\x4d\x53\x55\x4e\x47\x0a\x20\x20\x20\x20\x20\x01\x1d"
58         "\x02\x03\x1f\xf1\x47\x90\x04\x05\x03\x20\x22\x07\x23\x09\x07\x07"
59         "\x83\x01\x00\x00\xe2\x00\x0f\x67\x03\x0c\x00\x20\x00\xb8\x2d\x01"
60         "\x1d\x80\x18\x71\x1c\x16\x20\x58\x2c\x25\x00\xa0\x5a\x00\x00\x00"
61         "\x9e\x01\x1d\x00\x72\x51\xd0\x1e\x20\x6e\x28\x55\x00\xa0\x5a\x00"
62         "\x00\x00\x1e\x8c\x0a\xd0\x8a\x20\xe0\x2d\x10\x10\x3e\x96\x00\xa0"
63         "\x5a\x00\x00\x00\x18\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
64         "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
65         "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\xc6";
66 
67 const unsigned char kPanasonicTvEdid[] =
68         "\x00\xff\xff\xff\xff\xff\xff\x00\x34\xa9\x96\xa2\x01\x01\x01"
69         "\x01\x00\x1d\x01\x03\x80\x80\x48\x78\x0a\xda\xff\xa3\x58\x4a"
70         "\xa2\x29\x17\x49\x4b\x20\x08\x00\x31\x40\x61\x40\x01\x01\x01"
71         "\x01\x01\x01\x01\x01\x01\x01\x01\x01\x08\xe8\x00\x30\xf2\x70"
72         "\x5a\x80\xb0\x58\x8a\x00\xba\x88\x21\x00\x00\x1e\x02\x3a\x80"
73         "\x18\x71\x38\x2d\x40\x58\x2c\x45\x00\xba\x88\x21\x00\x00\x1e"
74         "\x00\x00\x00\xfc\x00\x50\x61\x6e\x61\x73\x6f\x6e\x69\x63\x2d"
75         "\x54\x56\x0a\x00\x00\x00\xfd\x00\x17\x3d\x0f\x88\x3c\x00\x0a"
76         "\x20\x20\x20\x20\x20\x20\x01\x1d\x02\x03\x6b\xf0\x57\x61\x60"
77         "\x10\x1f\x66\x65\x05\x14\x20\x21\x22\x04\x13\x03\x12\x07\x16"
78         "\x5d\x5e\x5f\x62\x63\x64\x2c\x0d\x07\x01\x15\x07\x50\x57\x07"
79         "\x01\x67\x04\x03\x83\x0f\x00\x00\x6e\x03\x0c\x00\x20\x00\x38"
80         "\x3c\x2f\x08\x80\x01\x02\x03\x04\x67\xd8\x5d\xc4\x01\x78\x80"
81         "\x03\xe2\x00\x4b\xe3\x05\xff\x01\xe2\x0f\x33\xe3\x06\x0f\x01"
82         "\xe5\x01\x8b\x84\x90\x01\xeb\x01\x46\xd0\x00\x44\x03\x70\x80"
83         "\x5e\x75\x94\xe6\x11\x46\xd0\x00\x70\x00\x66\x21\x56\xaa\x51"
84         "\x00\x1e\x30\x46\x8f\x33\x00\xba\x88\x21\x00\x00\x1e\x00\x00"
85         "\xc8";
86 
87 const unsigned char kHisenseTvEdid[] =
88         "\x00\xff\xff\xff\xff\xff\xff\x00\x20\xa3\x00\x00\x00\x00\x00"
89         "\x00\x12\x1d\x01\x03\x80\x00\x00\x78\x0a\xd7\xa5\xa2\x59\x4a"
90         "\x96\x24\x14\x50\x54\xa3\x08\x00\xd1\xc0\xb3\x00\x81\x00\x81"
91         "\x80\x81\x40\x81\xc0\x01\x01\x01\x01\x02\x3a\x80\x18\x71\x38"
92         "\x2d\x40\x58\x2c\x45\x00\x3f\x43\x21\x00\x00\x1a\x02\x3a\x80"
93         "\x18\x71\x38\x2d\x40\x58\x2c\x45\x00\x3f\x43\x21\x00\x00\x1a"
94         "\x00\x00\x00\xfd\x00\x1e\x4c\x1e\x5a\x1e\x00\x0a\x20\x20\x20"
95         "\x20\x20\x20\x00\x00\x00\xfc\x00\x48\x69\x73\x65\x6e\x73\x65"
96         "\x0a\x20\x20\x20\x20\x20\x01\x47\x02\x03\x2d\x71\x50\x90\x05"
97         "\x04\x03\x07\x02\x06\x01\x1f\x14\x13\x12\x16\x11\x15\x20\x2c"
98         "\x09\x07\x03\x15\x07\x50\x57\x07\x00\x39\x07\xbb\x66\x03\x0c"
99         "\x00\x12\x34\x00\x83\x01\x00\x00\x01\x1d\x00\x72\x51\xd0\x1e"
100         "\x20\x6e\x28\x55\x00\xc4\x8e\x21\x00\x00\x1e\x01\x1d\x80\x18"
101         "\x71\x1c\x16\x20\x58\x2c\x25\x00\xc4\x8e\x21\x00\x00\x9e\x8c"
102         "\x0a\xd0\x8a\x20\xe0\x2d\x10\x10\x3e\x96\x00\x13\x8e\x21\x00"
103         "\x00\x18\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
104         "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
105         "\x07";
106 
107 const unsigned char kCtlDisplayEdid[] =
108         "\x00\xff\xff\xff\xff\xff\xff\x00\x0e\x8c\x9d\x24\x00\x00\x00\x00"
109         "\xff\x17\x01\x04\xa5\x34\x1d\x78\x3a\xa7\x25\xa4\x57\x51\xa0\x26"
110         "\x10\x50\x54\xbf\xef\x80\xb3\x00\xa9\x40\x95\x00\x81\x40\x81\x80"
111         "\x95\x0f\x71\x4f\x90\x40\x02\x3a\x80\x18\x71\x38\x2d\x40\x58\x2c"
112         "\x45\x00\x09\x25\x21\x00\x00\x1e\x66\x21\x50\xb0\x51\x00\x1b\x30"
113         "\x40\x70\x36\x00\x09\x25\x21\x00\x00\x1e\x00\x00\x00\xfd\x00\x31"
114         "\x4c\x1e\x52\x14\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\xfc"
115         "\x00\x4c\x50\x32\x33\x36\x31\x0a\x20\x20\x20\x20\x20\x20\x01\x3e"
116         "\x02\x03\x22\xf2\x4f\x90\x9f\x05\x14\x04\x13\x03\x02\x12\x11\x07"
117         "\x06\x16\x15\x01\x23\x09\x07\x07\x83\x01\x00\x00\x65\xb9\x14\x00"
118         "\x04\x00\x02\x3a\x80\x18\x71\x38\x2d\x40\x58\x2c\x45\x00\x09\x25"
119         "\x21\x00\x00\x1e\x02\x3a\x80\xd0\x72\x38\x2d\x40\x10\x2c\x45\x80"
120         "\x09\x25\x21\x00\x00\x1e\x01\x1d\x00\x72\x51\xd0\x1e\x20\x6e\x28"
121         "\x55\x00\x09\x25\x21\x00\x00\x1e\x8c\x0a\xd0\x8a\x20\xe0\x2d\x10"
122         "\x10\x3e\x96\x00\x09\x25\x21\x00\x00\x18\x00\x00\x00\x00\x00\x00"
123         "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\xf4";
124 
125 template <size_t N>
asDisplayIdentificationData(const unsigned char (& bytes)[N])126 DisplayIdentificationData asDisplayIdentificationData(const unsigned char (&bytes)[N]) {
127     return DisplayIdentificationData(bytes, bytes + N - 1);
128 }
129 
hash(const char * str)130 uint32_t hash(const char* str) {
131     return static_cast<uint32_t>(std::hash<std::string_view>()(str));
132 }
133 
134 } // namespace
135 
getInternalEdid()136 const DisplayIdentificationData& getInternalEdid() {
137     static const DisplayIdentificationData data = asDisplayIdentificationData(kInternalEdid);
138     return data;
139 }
140 
getExternalEdid()141 const DisplayIdentificationData& getExternalEdid() {
142     static const DisplayIdentificationData data = asDisplayIdentificationData(kExternalEdid);
143     return data;
144 }
145 
getExternalEedid()146 const DisplayIdentificationData& getExternalEedid() {
147     static const DisplayIdentificationData data = asDisplayIdentificationData(kExternalEedid);
148     return data;
149 }
150 
getPanasonicTvEdid()151 const DisplayIdentificationData& getPanasonicTvEdid() {
152     static const DisplayIdentificationData data = asDisplayIdentificationData(kPanasonicTvEdid);
153     return data;
154 }
155 
getHisenseTvEdid()156 const DisplayIdentificationData& getHisenseTvEdid() {
157     static const DisplayIdentificationData data = asDisplayIdentificationData(kHisenseTvEdid);
158     return data;
159 }
160 
getCtlDisplayEdid()161 const DisplayIdentificationData& getCtlDisplayEdid() {
162     static const DisplayIdentificationData data = asDisplayIdentificationData(kCtlDisplayEdid);
163     return data;
164 }
165 
TEST(DisplayIdentificationTest,isEdid)166 TEST(DisplayIdentificationTest, isEdid) {
167     EXPECT_FALSE(isEdid({}));
168 
169     EXPECT_TRUE(isEdid(getInternalEdid()));
170     EXPECT_TRUE(isEdid(getExternalEdid()));
171     EXPECT_TRUE(isEdid(getExternalEedid()));
172     EXPECT_TRUE(isEdid(getPanasonicTvEdid()));
173     EXPECT_TRUE(isEdid(getHisenseTvEdid()));
174     EXPECT_TRUE(isEdid(getCtlDisplayEdid()));
175 }
176 
TEST(DisplayIdentificationTest,parseEdid)177 TEST(DisplayIdentificationTest, parseEdid) {
178     auto edid = parseEdid(getInternalEdid());
179     ASSERT_TRUE(edid);
180     EXPECT_EQ(0x4ca3u, edid->manufacturerId);
181     EXPECT_STREQ("SEC", edid->pnpId.data());
182     // ASCII text should be used as fallback if display name and serial number are missing.
183     EXPECT_EQ(hash("121AT11-801"), edid->modelHash);
184     EXPECT_TRUE(edid->displayName.empty());
185     EXPECT_EQ(12610, edid->productId);
186     EXPECT_EQ(21, edid->manufactureOrModelYear);
187     EXPECT_EQ(0, edid->manufactureWeek);
188     EXPECT_FALSE(edid->cea861Block);
189 
190     edid = parseEdid(getExternalEdid());
191     ASSERT_TRUE(edid);
192     EXPECT_EQ(0x22f0u, edid->manufacturerId);
193     EXPECT_STREQ("HWP", edid->pnpId.data());
194     EXPECT_EQ(hash("HP ZR30w"), edid->modelHash);
195     EXPECT_EQ("HP ZR30w", edid->displayName);
196     EXPECT_EQ(10348, edid->productId);
197     EXPECT_EQ(22, edid->manufactureOrModelYear);
198     EXPECT_EQ(2, edid->manufactureWeek);
199     EXPECT_FALSE(edid->cea861Block);
200 
201     edid = parseEdid(getExternalEedid());
202     ASSERT_TRUE(edid);
203     EXPECT_EQ(0x4c2du, edid->manufacturerId);
204     EXPECT_STREQ("SAM", edid->pnpId.data());
205     EXPECT_EQ(hash("SAMSUNG"), edid->modelHash);
206     EXPECT_EQ("SAMSUNG", edid->displayName);
207     EXPECT_EQ(2302, edid->productId);
208     EXPECT_EQ(21, edid->manufactureOrModelYear);
209     EXPECT_EQ(41, edid->manufactureWeek);
210     ASSERT_TRUE(edid->cea861Block);
211     ASSERT_TRUE(edid->cea861Block->hdmiVendorDataBlock);
212     auto physicalAddress = edid->cea861Block->hdmiVendorDataBlock->physicalAddress;
213     EXPECT_EQ(2, physicalAddress.a);
214     EXPECT_EQ(0, physicalAddress.b);
215     EXPECT_EQ(0, physicalAddress.c);
216     EXPECT_EQ(0, physicalAddress.d);
217 
218     edid = parseEdid(getPanasonicTvEdid());
219     ASSERT_TRUE(edid);
220     EXPECT_EQ(13481, edid->manufacturerId);
221     EXPECT_STREQ("MEI", edid->pnpId.data());
222     EXPECT_EQ(hash("Panasonic-TV"), edid->modelHash);
223     EXPECT_EQ("Panasonic-TV", edid->displayName);
224     EXPECT_EQ(41622, edid->productId);
225     EXPECT_EQ(29, edid->manufactureOrModelYear);
226     EXPECT_EQ(0, edid->manufactureWeek);
227     ASSERT_TRUE(edid->cea861Block);
228     ASSERT_TRUE(edid->cea861Block->hdmiVendorDataBlock);
229     physicalAddress = edid->cea861Block->hdmiVendorDataBlock->physicalAddress;
230     EXPECT_EQ(2, physicalAddress.a);
231     EXPECT_EQ(0, physicalAddress.b);
232     EXPECT_EQ(0, physicalAddress.c);
233     EXPECT_EQ(0, physicalAddress.d);
234 
235     edid = parseEdid(getHisenseTvEdid());
236     ASSERT_TRUE(edid);
237     EXPECT_EQ(8355, edid->manufacturerId);
238     EXPECT_STREQ("HEC", edid->pnpId.data());
239     EXPECT_EQ(hash("Hisense"), edid->modelHash);
240     EXPECT_EQ("Hisense", edid->displayName);
241     EXPECT_EQ(0, edid->productId);
242     EXPECT_EQ(29, edid->manufactureOrModelYear);
243     EXPECT_EQ(18, edid->manufactureWeek);
244     ASSERT_TRUE(edid->cea861Block);
245     ASSERT_TRUE(edid->cea861Block->hdmiVendorDataBlock);
246     physicalAddress = edid->cea861Block->hdmiVendorDataBlock->physicalAddress;
247     EXPECT_EQ(1, physicalAddress.a);
248     EXPECT_EQ(2, physicalAddress.b);
249     EXPECT_EQ(3, physicalAddress.c);
250     EXPECT_EQ(4, physicalAddress.d);
251 
252     edid = parseEdid(getCtlDisplayEdid());
253     ASSERT_TRUE(edid);
254     EXPECT_EQ(3724, edid->manufacturerId);
255     EXPECT_STREQ("CTL", edid->pnpId.data());
256     EXPECT_EQ(hash("LP2361"), edid->modelHash);
257     EXPECT_EQ("LP2361", edid->displayName);
258     EXPECT_EQ(9373, edid->productId);
259     EXPECT_EQ(23, edid->manufactureOrModelYear);
260     EXPECT_EQ(0xff, edid->manufactureWeek);
261     ASSERT_TRUE(edid->cea861Block);
262     EXPECT_FALSE(edid->cea861Block->hdmiVendorDataBlock);
263 }
264 
TEST(DisplayIdentificationTest,parseInvalidEdid)265 TEST(DisplayIdentificationTest, parseInvalidEdid) {
266     EXPECT_FALSE(isEdid({}));
267     EXPECT_FALSE(parseEdid({}));
268 
269     // Display name must be printable.
270     auto data = getExternalEdid();
271     data[97] = '\x1b';
272     auto edid = parseEdid(data);
273     ASSERT_TRUE(edid);
274     // Serial number should be used as fallback if display name is invalid.
275     const auto modelHash = hash("CN4202137Q");
276     EXPECT_EQ(modelHash, edid->modelHash);
277     EXPECT_TRUE(edid->displayName.empty());
278 
279     // Parsing should succeed even if EDID is truncated.
280     data.pop_back();
281     edid = parseEdid(data);
282     ASSERT_TRUE(edid);
283     EXPECT_EQ(modelHash, edid->modelHash);
284 }
285 
TEST(DisplayIdentificationTest,getPnpId)286 TEST(DisplayIdentificationTest, getPnpId) {
287     EXPECT_FALSE(getPnpId(0));
288     EXPECT_FALSE(getPnpId(static_cast<uint16_t>(-1)));
289 
290     EXPECT_STREQ("SEC", getPnpId(0x4ca3u).value_or(PnpId{}).data());
291     EXPECT_STREQ("HWP", getPnpId(0x22f0u).value_or(PnpId{}).data());
292     EXPECT_STREQ("SAM", getPnpId(0x4c2du).value_or(PnpId{}).data());
293 }
294 
TEST(DisplayIdentificationTest,parseDisplayIdentificationData)295 TEST(DisplayIdentificationTest, parseDisplayIdentificationData) {
296     const auto primaryInfo = parseDisplayIdentificationData(0, getInternalEdid());
297     ASSERT_TRUE(primaryInfo);
298 
299     const auto secondaryInfo = parseDisplayIdentificationData(1, getExternalEdid());
300     ASSERT_TRUE(secondaryInfo);
301 
302     const auto tertiaryInfo = parseDisplayIdentificationData(2, getExternalEedid());
303     ASSERT_TRUE(tertiaryInfo);
304 
305     // Display IDs should be unique.
306     EXPECT_NE(primaryInfo->id, secondaryInfo->id);
307     EXPECT_NE(primaryInfo->id, tertiaryInfo->id);
308     EXPECT_NE(secondaryInfo->id, tertiaryInfo->id);
309 }
310 
TEST(DisplayIdentificationTest,deviceProductInfo)311 TEST(DisplayIdentificationTest, deviceProductInfo) {
312     using ManufactureYear = DeviceProductInfo::ManufactureYear;
313     using ManufactureWeekAndYear = DeviceProductInfo::ManufactureWeekAndYear;
314     using ModelYear = DeviceProductInfo::ModelYear;
315     using RelativeAddress = DeviceProductInfo::RelativeAddress;
316 
317     {
318         const auto displayIdInfo = parseDisplayIdentificationData(0, getInternalEdid());
319         ASSERT_TRUE(displayIdInfo);
320         ASSERT_TRUE(displayIdInfo->deviceProductInfo);
321         const auto& info = *displayIdInfo->deviceProductInfo;
322         EXPECT_STREQ("", info.name.data());
323         EXPECT_STREQ("SEC", info.manufacturerPnpId.data());
324         EXPECT_STREQ("12610", info.productId.data());
325         ASSERT_TRUE(std::holds_alternative<ManufactureYear>(info.manufactureOrModelDate));
326         EXPECT_EQ(2011, std::get<ManufactureYear>(info.manufactureOrModelDate).year);
327         EXPECT_EQ(DeviceProductInfo::NO_RELATIVE_ADDRESS, info.relativeAddress);
328     }
329     {
330         const auto displayIdInfo = parseDisplayIdentificationData(0, getExternalEdid());
331         ASSERT_TRUE(displayIdInfo);
332         ASSERT_TRUE(displayIdInfo->deviceProductInfo);
333         const auto& info = *displayIdInfo->deviceProductInfo;
334         EXPECT_STREQ("HP ZR30w", info.name.data());
335         EXPECT_STREQ("HWP", info.manufacturerPnpId.data());
336         EXPECT_STREQ("10348", info.productId.data());
337         ASSERT_TRUE(std::holds_alternative<ManufactureWeekAndYear>(info.manufactureOrModelDate));
338         const auto& date = std::get<ManufactureWeekAndYear>(info.manufactureOrModelDate);
339         EXPECT_EQ(2012, date.year);
340         EXPECT_EQ(2, date.week);
341         EXPECT_EQ(DeviceProductInfo::NO_RELATIVE_ADDRESS, info.relativeAddress);
342     }
343     {
344         const auto displayIdInfo = parseDisplayIdentificationData(0, getExternalEedid());
345         ASSERT_TRUE(displayIdInfo);
346         ASSERT_TRUE(displayIdInfo->deviceProductInfo);
347         const auto& info = *displayIdInfo->deviceProductInfo;
348         EXPECT_STREQ("SAMSUNG", info.name.data());
349         EXPECT_STREQ("SAM", info.manufacturerPnpId.data());
350         EXPECT_STREQ("2302", info.productId.data());
351         ASSERT_TRUE(std::holds_alternative<ManufactureWeekAndYear>(info.manufactureOrModelDate));
352         const auto& date = std::get<ManufactureWeekAndYear>(info.manufactureOrModelDate);
353         EXPECT_EQ(2011, date.year);
354         EXPECT_EQ(41, date.week);
355         EXPECT_EQ((RelativeAddress{{2, 0, 0, 0}}), info.relativeAddress);
356     }
357     {
358         const auto displayIdInfo = parseDisplayIdentificationData(0, getPanasonicTvEdid());
359         ASSERT_TRUE(displayIdInfo);
360         ASSERT_TRUE(displayIdInfo->deviceProductInfo);
361         const auto& info = *displayIdInfo->deviceProductInfo;
362         EXPECT_STREQ("Panasonic-TV", info.name.data());
363         EXPECT_STREQ("MEI", info.manufacturerPnpId.data());
364         EXPECT_STREQ("41622", info.productId.data());
365         ASSERT_TRUE(std::holds_alternative<ManufactureYear>(info.manufactureOrModelDate));
366         const auto& date = std::get<ManufactureYear>(info.manufactureOrModelDate);
367         EXPECT_EQ(2019, date.year);
368         EXPECT_EQ((RelativeAddress{{2, 0, 0, 0}}), info.relativeAddress);
369     }
370     {
371         const auto displayIdInfo = parseDisplayIdentificationData(0, getHisenseTvEdid());
372         ASSERT_TRUE(displayIdInfo);
373         ASSERT_TRUE(displayIdInfo->deviceProductInfo);
374         const auto& info = *displayIdInfo->deviceProductInfo;
375         EXPECT_STREQ("Hisense", info.name.data());
376         EXPECT_STREQ("HEC", info.manufacturerPnpId.data());
377         EXPECT_STREQ("0", info.productId.data());
378         ASSERT_TRUE(std::holds_alternative<ManufactureWeekAndYear>(info.manufactureOrModelDate));
379         const auto& date = std::get<ManufactureWeekAndYear>(info.manufactureOrModelDate);
380         EXPECT_EQ(2019, date.year);
381         EXPECT_EQ(18, date.week);
382         EXPECT_EQ((RelativeAddress{{1, 2, 3, 4}}), info.relativeAddress);
383     }
384     {
385         const auto displayIdInfo = parseDisplayIdentificationData(0, getCtlDisplayEdid());
386         ASSERT_TRUE(displayIdInfo);
387         ASSERT_TRUE(displayIdInfo->deviceProductInfo);
388         const auto& info = *displayIdInfo->deviceProductInfo;
389         EXPECT_STREQ("LP2361", info.name.data());
390         EXPECT_STREQ("CTL", info.manufacturerPnpId.data());
391         EXPECT_STREQ("9373", info.productId.data());
392         ASSERT_TRUE(std::holds_alternative<ModelYear>(info.manufactureOrModelDate));
393         EXPECT_EQ(2013, std::get<ModelYear>(info.manufactureOrModelDate).year);
394         EXPECT_EQ(DeviceProductInfo::NO_RELATIVE_ADDRESS, info.relativeAddress);
395     }
396 }
397 
TEST(DisplayIdentificationTest,getFallbackDisplayId)398 TEST(DisplayIdentificationTest, getFallbackDisplayId) {
399     // Manufacturer ID should be invalid.
400     ASSERT_FALSE(getPnpId(getFallbackDisplayId(0)));
401     ASSERT_FALSE(getPnpId(getFallbackDisplayId(0xffu)));
402 }
403 
TEST(DisplayIdentificationTest,getVirtualDisplayId)404 TEST(DisplayIdentificationTest, getVirtualDisplayId) {
405     // Manufacturer ID should be invalid.
406     ASSERT_FALSE(getPnpId(getVirtualDisplayId(0)));
407     ASSERT_FALSE(getPnpId(getVirtualDisplayId(0xffff'ffffu)));
408 }
409 
410 } // namespace android
411