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'use strict';
// Flags: --expose-gc
const common = require('../common');
common.skipIfInspectorDisabled();
const { strictEqual } = require('assert');
const { createContext, runInNewContext } = 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');
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.
strictEqual(name.includes(`[${process.pid}]`), true);
} else {
let expects = `${process.argv0}[${process.pid}]`;
if (!common.isMainThread) {
expects = `Worker[${require('worker_threads').threadId}]`;
}
strictEqual(expects, name);
}
strictEqual(origin, '',
JSON.stringify(contextCreated));
strictEqual(auxData.isDefault, true,
JSON.stringify(contextCreated));
}
{
const vmContextCreatedPromise =
notificationPromise('Runtime.executionContextCreated');
let contextDestroyed = null;
session.once('Runtime.executionContextDestroyed',
(notification) => contextDestroyed = notification);
runInNewContext('1 + 1');
const contextCreated = await vmContextCreatedPromise;
const { id, name, origin, auxData } = contextCreated.params.context;
strictEqual(name, 'VM Context 1',
JSON.stringify(contextCreated));
strictEqual(origin, '',
JSON.stringify(contextCreated));
strictEqual(auxData.isDefault, false,
JSON.stringify(contextCreated));
// GC is unpredictable...
while (!contextDestroyed)
global.gc();
strictEqual(contextDestroyed.params.executionContextId, id,
JSON.stringify(contextDestroyed));
}
{
const vmContextCreatedPromise =
notificationPromise('Runtime.executionContextCreated');
let contextDestroyed = null;
session.once('Runtime.executionContextDestroyed',
(notification) => contextDestroyed = notification);
runInNewContext('1 + 1', {}, {
contextName: 'Custom context',
contextOrigin: 'https://origin.example'
});
const contextCreated = await vmContextCreatedPromise;
const { name, origin, auxData } = contextCreated.params.context;
strictEqual(name, 'Custom context',
JSON.stringify(contextCreated));
strictEqual(origin, 'https://origin.example',
JSON.stringify(contextCreated));
strictEqual(auxData.isDefault, false,
JSON.stringify(contextCreated));
// GC is unpredictable...
while (!contextDestroyed)
global.gc();
}
{
const vmContextCreatedPromise =
notificationPromise('Runtime.executionContextCreated');
let contextDestroyed = null;
session.once('Runtime.executionContextDestroyed',
(notification) => contextDestroyed = notification);
createContext({}, { origin: 'https://nodejs.org' });
const contextCreated = await vmContextCreatedPromise;
const { name, origin, auxData } = contextCreated.params.context;
strictEqual(name, 'VM Context 2',
JSON.stringify(contextCreated));
strictEqual(origin, 'https://nodejs.org',
JSON.stringify(contextCreated));
strictEqual(auxData.isDefault, false,
JSON.stringify(contextCreated));
// GC is unpredictable...
while (!contextDestroyed)
global.gc();
}
{
const vmContextCreatedPromise =
notificationPromise('Runtime.executionContextCreated');
let contextDestroyed = null;
session.once('Runtime.executionContextDestroyed',
(notification) => contextDestroyed = notification);
createContext({}, { name: 'Custom context 2' });
const contextCreated = await vmContextCreatedPromise;
const { name, auxData } = contextCreated.params.context;
strictEqual(name, 'Custom context 2',
JSON.stringify(contextCreated));
strictEqual(auxData.isDefault, false,
JSON.stringify(contextCreated));
// GC is unpredictable...
while (!contextDestroyed)
global.gc();
}
}
async function testBreakpointHit() {
console.log('Testing breakpoint is hit in a new context');
session.post('Debugger.enable');
const pausedPromise = notificationPromise('Debugger.paused');
runInNewContext('debugger', {});
await pausedPromise;
}
testContextCreatedAndDestroyed().then(testBreakpointHit);
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