1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
|
// Copyright 2021 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "content/browser/handwriting/handwriting_recognition_service_impl_cros.h"
#include <optional>
#include <utility>
#include <vector>
#include "base/command_line.h"
#include "base/run_loop.h"
#include "base/test/bind.h"
#include "chromeos/services/machine_learning/public/cpp/fake_service_connection.h"
#include "chromeos/services/machine_learning/public/cpp/ml_switches.h"
#include "chromeos/services/machine_learning/public/cpp/service_connection.h"
#include "content/browser/handwriting/handwriting_recognizer_impl_cros.h"
#include "content/public/test/test_renderer_host.h"
#include "mojo/public/cpp/bindings/pending_receiver.h"
#include "mojo/public/cpp/bindings/pending_remote.h"
#include "mojo/public/cpp/bindings/remote.h"
#include "third_party/blink/public/mojom/handwriting/handwriting.mojom.h"
namespace content {
class HandwritingRecognitionServiceImplCrOSTest
: public RenderViewHostTestHarness {
public:
void SetUp() override {
RenderViewHostTestHarness::SetUp();
chromeos::machine_learning::ServiceConnection::
UseFakeServiceConnectionForTesting(&fake_ml_service_connection_);
chromeos::machine_learning::ServiceConnection::GetInstance()->Initialize();
// We need to add the switch to "enable" HWR support.
base::CommandLine::ForCurrentProcess()->AppendSwitchASCII(
::switches::kOndeviceHandwritingSwitch, "use_rootfs");
}
chromeos::machine_learning::FakeServiceConnectionImpl&
GetMlServiceConnection() {
return fake_ml_service_connection_;
}
private:
chromeos::machine_learning::FakeServiceConnectionImpl
fake_ml_service_connection_;
};
TEST_F(HandwritingRecognitionServiceImplCrOSTest, CreateHandwritingRecognizer) {
mojo::Remote<handwriting::mojom::HandwritingRecognitionService>
service_remote;
CrOSHandwritingRecognitionServiceImpl::Create(
service_remote.BindNewPipeAndPassReceiver());
auto model_constraint = handwriting::mojom::HandwritingModelConstraint::New();
model_constraint->languages.push_back("en");
bool is_callback_called = false;
base::RunLoop runloop;
service_remote->CreateHandwritingRecognizer(
std::move(model_constraint),
base::BindLambdaForTesting(
[&](handwriting::mojom::CreateHandwritingRecognizerResult result,
mojo::PendingRemote<handwriting::mojom::HandwritingRecognizer>
remote) {
EXPECT_EQ(
result,
handwriting::mojom::CreateHandwritingRecognizerResult::kOk);
is_callback_called = true;
runloop.Quit();
}));
runloop.Run();
EXPECT_TRUE(is_callback_called);
}
// In this test we provide valid input/output to check the mojo calls and data
// copying code work correctly.
TEST_F(HandwritingRecognitionServiceImplCrOSTest,
GetPredictionCorrectConversion) {
mojo::Remote<handwriting::mojom::HandwritingRecognitionService>
service_remote;
CrOSHandwritingRecognitionServiceImpl::Create(
service_remote.BindNewPipeAndPassReceiver());
auto model_constraint = handwriting::mojom::HandwritingModelConstraint::New();
model_constraint->languages.push_back("en");
bool is_callback_called = false;
mojo::Remote<handwriting::mojom::HandwritingRecognizer> recognizer_remote;
base::RunLoop runloop_create_recognizer;
service_remote->CreateHandwritingRecognizer(
std::move(model_constraint),
base::BindLambdaForTesting(
[&](handwriting::mojom::CreateHandwritingRecognizerResult result,
mojo::PendingRemote<handwriting::mojom::HandwritingRecognizer>
input_remote) {
is_callback_called = true;
ASSERT_EQ(
result,
handwriting::mojom::CreateHandwritingRecognizerResult::kOk);
recognizer_remote.Bind(std::move(input_remote));
runloop_create_recognizer.Quit();
}));
runloop_create_recognizer.Run();
ASSERT_TRUE(is_callback_called);
// Generate and set the fake recognition result.
auto prediction = chromeos::machine_learning::web_platform::mojom::
HandwritingPrediction::New();
prediction->text = "text wrote";
auto segment = chromeos::machine_learning::web_platform::mojom::
HandwritingSegment::New();
segment->grapheme = "seg";
segment->begin_index = 0u;
segment->end_index = 3u;
segment->drawing_segments.push_back(
chromeos::machine_learning::web_platform::mojom::
HandwritingDrawingSegment::New(0u, 10u, 15u));
segment->drawing_segments.push_back(
chromeos::machine_learning::web_platform::mojom::
HandwritingDrawingSegment::New(1u, 0u, 13u));
prediction->segmentation_result.push_back(std::move(segment));
std::vector<
chromeos::machine_learning::web_platform::mojom::HandwritingPredictionPtr>
predictions;
predictions.push_back(std::move(prediction));
GetMlServiceConnection().SetOutputWebPlatformHandwritingRecognizerResult(
std::move(predictions));
// Generate 3 input strokes.
std::vector<handwriting::mojom::HandwritingStrokePtr> strokes;
const std::vector<int> num_points = {15, 10, 21};
for (int npts : num_points) {
auto stroke = handwriting::mojom::HandwritingStroke::New();
for (int i = 0; i < npts; ++i) {
// The actual values of the points do not matter.
stroke->points.emplace_back(handwriting::mojom::HandwritingPoint::New());
}
strokes.emplace_back(std::move(stroke));
}
is_callback_called = false;
base::RunLoop runloop_prediction;
recognizer_remote->GetPrediction(
std::move(strokes), handwriting::mojom::HandwritingHints::New(),
base::BindLambdaForTesting(
[&](std::optional<std::vector<
handwriting::mojom::HandwritingPredictionPtr>> result) {
is_callback_called = true;
ASSERT_TRUE(result.has_value());
ASSERT_EQ(result.value().size(), 1u);
EXPECT_EQ(result.value()[0]->text, "text wrote");
ASSERT_EQ(result.value()[0]->segmentation_result.size(), 1u);
EXPECT_EQ(result.value()[0]->segmentation_result[0]->grapheme,
"seg");
// It is 0 because it is the first segment.
EXPECT_EQ(result.value()[0]->segmentation_result[0]->begin_index,
0u);
// This is the Length of the grapheme "seg".
EXPECT_EQ(result.value()[0]->segmentation_result[0]->end_index, 3u);
// Equals `ink_range->end_stroke-ink_range->begin_stroke+1`.
ASSERT_EQ(result.value()[0]
->segmentation_result[0]
->drawing_segments.size(),
2u);
EXPECT_EQ(result.value()[0]
->segmentation_result[0]
->drawing_segments[0]
->stroke_index,
0u);
// Equals `ink_range->start_point`.
EXPECT_EQ(result.value()[0]
->segmentation_result[0]
->drawing_segments[0]
->begin_point_index,
10u);
// Equals `num_points[0]`.
EXPECT_EQ(result.value()[0]
->segmentation_result[0]
->drawing_segments[0]
->end_point_index,
15u);
EXPECT_EQ(result.value()[0]
->segmentation_result[0]
->drawing_segments[1]
->stroke_index,
1u);
EXPECT_EQ(result.value()[0]
->segmentation_result[0]
->drawing_segments[1]
->begin_point_index,
0u);
// Equals `ink_range->end_point+1`.
EXPECT_EQ(result.value()[0]
->segmentation_result[0]
->drawing_segments[1]
->end_point_index,
13u);
runloop_prediction.Quit();
}));
runloop_prediction.Run();
EXPECT_TRUE(is_callback_called);
}
} // namespace content
|
