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
|
// Copyright 2024 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include <tuple>
#include <vector>
#include "base/command_line.h"
#include "base/strings/string_util.h"
#include "base/strings/stringprintf.h"
#include "base/strings/to_string.h"
#include "base/test/scoped_feature_list.h"
#include "base/version_info/channel.h"
#include "chrome/browser/extensions/extension_browsertest.h"
#include "content/public/common/content_switches.h"
#include "content/public/test/browser_test.h"
#include "extensions/test/result_catcher.h"
#include "extensions/test/test_extension_dir.h"
#include "testing/gtest/include/gtest/gtest.h"
#include "third_party/blink/public/common/features_generated.h"
namespace extensions {
namespace {
// The `key` field stores the public key for the extension with id
// "jnapclmfkaejhjkddbmiafekigmcbmma".
static constexpr char kManifestTemplate[] =
R"JS(
{
"name": "AI language model test",
"version": "0.1",
"manifest_version": 3,
"key": "MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEA3H6Jc0On6l0H3DJ6bx4aOW3+srCfjSdr+3ukwIEZrL6jDy500XweIwOp9PItpM9sijwu8v1rdyoBPubm/ottp/oz42aKp+2xIxcMTa6/cA2BL2kOWxwv+WP9d01IOFbFpWmQBDQNpp2UmH67OFbie6zHhyrSJKL2o9d05iX0a9Xwv9W48JKYpldo+/2JTP/5en0jxgiN+qkOCZuLag2cS/6Az0LArqsf5D+ReJemIBCNJhVxu3P0naxfEG6B6XczzuuptrX3H2vDr1LxZasLh9bzV88+8BxarjETACebOfqy366QxXluwAjnu/NHPv53edXlXvXrZ0C69RvvlMh1qQIDAQAB",
"description": "Extension for testing the AI language model API.",
"background": {
"service_worker": "sw.js"
}
}
)JS";
// The boolean tuple describing:
// 1. if the `kAIPromptAPI` chrome://flag is explicitly enabled;
// 2. if the `kAIPromptAPI` kill switch is triggered;
// 3. if the `kAIPromptAPIForExtension` kill switch is triggered;
using Variant = std::tuple<bool, bool, bool>;
bool IsAPIFlagEnabled(Variant v) {
return std::get<0>(v);
}
bool IsAPIKillSwitchTriggered(Variant v) {
return std::get<1>(v);
}
bool IsExtensionKillSwitchTriggered(Variant v) {
return std::get<2>(v);
}
// Describes the test variants in a meaningful way in the parameterized tests.
std::string DescribeTestVariant(const testing::TestParamInfo<Variant> info) {
std::string api_flag_enabled =
IsAPIFlagEnabled(info.param) ? "WithAPIFlag" : "NoAPIFlag";
std::string api_kill_switch = IsAPIKillSwitchTriggered(info.param)
? "WithAPIKillswitch"
: "NoAPIKillswitch";
std::string extension_kill_switch = IsExtensionKillSwitchTriggered(info.param)
? "WithExtensionKillswitch"
: "NoExtensionKillswitch";
return base::JoinString(
{api_flag_enabled, api_kill_switch, extension_kill_switch}, "_");
}
} // namespace
// TODO(crbug.com/419321441): Support Built-In AI APIs on ChromeOS.
#if BUILDFLAG(IS_CHROMEOS)
#define MAYBE_ExtensionAILanguageModelBrowserTest \
DISABLED_ExtensionAILanguageModelBrowserTest
#else
#define MAYBE_ExtensionAILanguageModelBrowserTest \
ExtensionAILanguageModelBrowserTest
#endif // BUILDFLAG(IS_CHROMEOS)
class MAYBE_ExtensionAILanguageModelBrowserTest
: public ExtensionBrowserTest,
public testing::WithParamInterface<Variant> {
public:
void SetUpCommandLine(base::CommandLine* command_line) override {
ExtensionBrowserTest::SetUpCommandLine(command_line);
if (IsAPIFlagEnabled(GetParam())) {
command_line->AppendSwitchASCII(switches::kEnableBlinkFeatures,
"AIPromptAPI");
}
base::flat_map<base::test::FeatureRef, bool> feature_states;
if (IsAPIKillSwitchTriggered(GetParam())) {
feature_states[blink::features::kAIPromptAPI] = false;
}
if (IsExtensionKillSwitchTriggered(GetParam())) {
feature_states[blink::features::kAIPromptAPIForExtension] = false;
}
feature_list_.InitWithFeatureStates(feature_states);
}
private:
base::test::ScopedFeatureList feature_list_;
};
INSTANTIATE_TEST_SUITE_P(
/* no prefix */,
MAYBE_ExtensionAILanguageModelBrowserTest,
testing::Combine(testing::Bool(), testing::Bool(), testing::Bool()),
&DescribeTestVariant);
// Check whether the API is exposed to the extension worker when expected.
IN_PROC_BROWSER_TEST_P(MAYBE_ExtensionAILanguageModelBrowserTest,
ExposedToWorker) {
static constexpr char kScript[] = R"JS(
chrome.test.runTests([
function verifyLanguageModelExposed() {
const expectLanguageModel = %s;
chrome.test.assertEq(expectLanguageModel, !!self.LanguageModel);
chrome.test.succeed();
},
]);
)JS";
TestExtensionDir test_dir;
test_dir.WriteManifest(kManifestTemplate);
// Extension access is blocked by either kill switch.
const bool is_api_exposed = IsAPIFlagEnabled(GetParam()) ||
(!IsAPIKillSwitchTriggered(GetParam()) &&
!IsExtensionKillSwitchTriggered(GetParam()));
test_dir.WriteFile(
FILE_PATH_LITERAL("sw.js"),
base::StringPrintf(kScript, base::ToString(is_api_exposed)));
ResultCatcher result_catcher;
const Extension* extension = LoadExtension(test_dir.UnpackedPath());
ASSERT_TRUE(extension);
EXPECT_TRUE(result_catcher.GetNextResult()) << result_catcher.message();
}
// Invoke availability() for basic API functionality coverage beyond WPTs.
IN_PROC_BROWSER_TEST_P(MAYBE_ExtensionAILanguageModelBrowserTest,
AvailableInWorker) {
static constexpr char kScript[] = R"JS(
chrome.test.runTests([
async function verifyLanguageModelAvailability() {
if (!!self.LanguageModel) { // Skip checking when not exposed.
const availability = await LanguageModel.availability();
chrome.test.assertEq(typeof(availability), 'string');
}
chrome.test.succeed();
},
]);
)JS";
TestExtensionDir test_dir;
test_dir.WriteManifest(kManifestTemplate);
test_dir.WriteFile(FILE_PATH_LITERAL("sw.js"), kScript);
ResultCatcher result_catcher;
const Extension* extension = LoadExtension(test_dir.UnpackedPath());
ASSERT_TRUE(extension);
EXPECT_TRUE(result_catcher.GetNextResult()) << result_catcher.message();
// TODO(crbug.com/421031829): Resolve underlying issue behind UnloadExtension.
UnloadExtension(extension->id());
}
} // namespace extensions
|
