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nodejs/test/sequential/test-inspector-async-call-stack.js
Ali Ijaz Sheikh 5886e204f0 inspector: track async stacks when necessary
With this change, we do async stack tracking only when explicitly
requested by the inspector client. This avoids unnecessary overhead
for clients that might not be interested in async stack traces.

PR-URL: https://github.com/nodejs/node/pull/16308
Fixes: https://github.com/nodejs/node/issues/16180
Reviewed-By: Eugene Ostroukhov <eostroukhov@google.com>
Reviewed-By: Refael Ackermann <refack@gmail.com>
Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: Ben Noordhuis <info@bnoordhuis.nl>
Reviewed-By: Timothy Gu <timothygu99@gmail.com>
2017-10-29 09:38:37 -07:00

80 lines
2.6 KiB
JavaScript

'use strict';
const common = require('../common');
common.skipIfInspectorDisabled();
common.skipIf32Bits();
const assert = require('assert');
const async_wrap = process.binding('async_wrap');
const { kTotals } = async_wrap.constants;
const inspector = require('inspector');
const setDepth = 'Debugger.setAsyncCallStackDepth';
function verifyAsyncHookDisabled(message) {
assert.strictEqual(async_wrap.async_hook_fields[kTotals], 0);
}
function verifyAsyncHookEnabled(message) {
assert.strictEqual(async_wrap.async_hook_fields[kTotals], 4);
}
// By default inspector async hooks should not have been installed.
verifyAsyncHookDisabled('inspector async hook should be disabled at startup');
const session = new inspector.Session();
verifyAsyncHookDisabled('creating a session should not enable async hooks');
session.connect();
verifyAsyncHookDisabled('connecting a session should not enable async hooks');
session.post('Debugger.enable', () => {
verifyAsyncHookDisabled('enabling debugger should not enable async hooks');
session.post(setDepth, { invalid: 'message' }, () => {
verifyAsyncHookDisabled('invalid message should not enable async hooks');
session.post(setDepth, { maxDepth: 'five' }, () => {
verifyAsyncHookDisabled('invalid maxDepth (string) should not enable ' +
'async hooks');
session.post(setDepth, { maxDepth: NaN }, () => {
verifyAsyncHookDisabled('invalid maxDepth (NaN) should not enable ' +
'async hooks');
session.post(setDepth, { maxDepth: 10 }, () => {
verifyAsyncHookEnabled('valid message should enable async hooks');
session.post(setDepth, { maxDepth: 0 }, () => {
verifyAsyncHookDisabled('Setting maxDepth to 0 should disable ' +
'async hooks');
runTestSet2(session);
});
});
});
});
});
});
function runTestSet2(session) {
session.post(setDepth, { maxDepth: 32 }, () => {
verifyAsyncHookEnabled('valid message should enable async hooks');
session.post('Debugger.disable', () => {
verifyAsyncHookDisabled('Debugger.disable should disable async hooks');
session.post('Debugger.enable', () => {
verifyAsyncHookDisabled('Enabling debugger should not enable hooks');
session.post(setDepth, { maxDepth: 64 }, () => {
verifyAsyncHookEnabled('valid message should enable async hooks');
session.disconnect();
verifyAsyncHookDisabled('Disconnecting session should disable ' +
'async hooks');
});
});
});
});
}