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
|
'use strict';
// Flags: --expose-gc
const common = require('../common');
common.skipIfInspectorDisabled();
const assert = require('assert');
const vm = require('vm');
const { Session } = require('inspector');
const session = new Session();
session.connect();
function notificationPromise(method) {
return new Promise((resolve) => session.once(method, resolve));
}
async function testContextCreatedAndDestroyed() {
console.log('Testing context created/destroyed notifications');
{
const mainContextPromise =
notificationPromise('Runtime.executionContextCreated');
session.post('Runtime.enable', assert.ifError);
const contextCreated = await mainContextPromise;
const { name, origin, auxData } = contextCreated.params.context;
if (common.isSunOS || common.isWindows) {
// uv_get_process_title() is unimplemented on Solaris-likes, it returns
// an empty string. On the Windows CI buildbots it returns
// "Administrator: Windows PowerShell[42]" because of a GetConsoleTitle()
// quirk. Not much we can do about either, just verify that it contains
// the PID.
assert.strictEqual(name.includes(`[${process.pid}]`), true);
} else {
let expects = `${process.argv0}[${process.pid}]`;
if (!common.isMainThread) {
expects = `Worker[${require('worker_threads').threadId}]`;
}
assert.strictEqual(expects, name);
}
assert.strictEqual(origin, '',
JSON.stringify(contextCreated));
assert.strictEqual(auxData.isDefault, true,
JSON.stringify(contextCreated));
}
{
const vmContextCreatedPromise =
notificationPromise('Runtime.executionContextCreated');
let contextDestroyed = null;
session.once('Runtime.executionContextDestroyed',
(notification) => contextDestroyed = notification);
vm.runInNewContext('1 + 1');
const contextCreated = await vmContextCreatedPromise;
const { id, name, origin, auxData } = contextCreated.params.context;
assert.strictEqual(name, 'VM Context 1',
JSON.stringify(contextCreated));
assert.strictEqual(origin, '',
JSON.stringify(contextCreated));
assert.strictEqual(auxData.isDefault, false,
JSON.stringify(contextCreated));
// GC is unpredictable...
console.log('Checking/waiting for GC.');
while (!contextDestroyed)
global.gc();
console.log('Context destroyed.');
assert.strictEqual(contextDestroyed.params.executionContextId, id,
JSON.stringify(contextDestroyed));
}
{
const vmContextCreatedPromise =
notificationPromise('Runtime.executionContextCreated');
let contextDestroyed = null;
session.once('Runtime.executionContextDestroyed',
(notification) => contextDestroyed = notification);
vm.runInNewContext('1 + 1', {}, {
contextName: 'Custom context',
contextOrigin: 'https://origin.example'
});
const contextCreated = await vmContextCreatedPromise;
const { name, origin, auxData } = contextCreated.params.context;
assert.strictEqual(name, 'Custom context',
JSON.stringify(contextCreated));
assert.strictEqual(origin, 'https://origin.example',
JSON.stringify(contextCreated));
assert.strictEqual(auxData.isDefault, false,
JSON.stringify(contextCreated));
// GC is unpredictable...
console.log('Checking/waiting for GC again.');
while (!contextDestroyed)
global.gc();
console.log('Other context destroyed.');
}
{
const vmContextCreatedPromise =
notificationPromise('Runtime.executionContextCreated');
let contextDestroyed = null;
session.once('Runtime.executionContextDestroyed',
(notification) => contextDestroyed = notification);
vm.createContext({}, { origin: 'https://nodejs.org' });
const contextCreated = await vmContextCreatedPromise;
const { name, origin, auxData } = contextCreated.params.context;
assert.strictEqual(name, 'VM Context 2',
JSON.stringify(contextCreated));
assert.strictEqual(origin, 'https://nodejs.org',
JSON.stringify(contextCreated));
assert.strictEqual(auxData.isDefault, false,
JSON.stringify(contextCreated));
// GC is unpredictable...
console.log('Checking/waiting for GC a third time.');
while (!contextDestroyed)
global.gc();
console.log('Context destroyed once again.');
}
{
const vmContextCreatedPromise =
notificationPromise('Runtime.executionContextCreated');
let contextDestroyed = null;
session.once('Runtime.executionContextDestroyed',
(notification) => contextDestroyed = notification);
vm.createContext({}, { name: 'Custom context 2' });
const contextCreated = await vmContextCreatedPromise;
const { name, auxData } = contextCreated.params.context;
assert.strictEqual(name, 'Custom context 2',
JSON.stringify(contextCreated));
assert.strictEqual(auxData.isDefault, false,
JSON.stringify(contextCreated));
// GC is unpredictable...
console.log('Checking/waiting for GC a fourth time.');
while (!contextDestroyed)
global.gc();
console.log('Context destroyed a fourth time.');
}
}
async function testBreakpointHit() {
console.log('Testing breakpoint is hit in a new context');
session.post('Debugger.enable', assert.ifError);
const pausedPromise = notificationPromise('Debugger.paused');
vm.runInNewContext('debugger', {});
await pausedPromise;
}
testContextCreatedAndDestroyed().then(common.mustCall(testBreakpointHit));
|
