node/test/parallel/test-v8-stats.js
Gareth Ellis 440057eae0
src: extend HeapStatistics with new fields
src: Add does_zap_garbage, malloced_memory and
peak_malloced_memory to v8 HeapStatistics

Following https://github.com/nodejs/code-and-learn/issues/56 I
have exposed does_zap_garbage to HeapStatistics.
The other fields, malloced_memory and peak_malloced_memory don't
seem to be in the current version of v8 in master.

PR-URL: https://github.com/nodejs/node/pull/8610
Reviewed-By: Colin Ihrig <cjihrig@gmail.com>
Reviewed-By: Anna Henningsen <anna@addaleax.net>
Reviewed-By: Ben Noordhuis <info@bnoordhuis.nl>
2016-11-20 02:23:00 +01:00

40 lines
1.2 KiB
JavaScript

'use strict';
require('../common');
var assert = require('assert');
var v8 = require('v8');
var s = v8.getHeapStatistics();
var keys = [
'does_zap_garbage',
'heap_size_limit',
'malloced_memory',
'peak_malloced_memory',
'total_available_size',
'total_heap_size',
'total_heap_size_executable',
'total_physical_size',
'used_heap_size'];
assert.deepStrictEqual(Object.keys(s).sort(), keys);
keys.forEach(function(key) {
assert.equal(typeof s[key], 'number');
});
const expectedHeapSpaces = [
'new_space',
'old_space',
'code_space',
'map_space',
'large_object_space'
];
const heapSpaceStatistics = v8.getHeapSpaceStatistics();
const actualHeapSpaceNames = heapSpaceStatistics.map((s) => s.space_name);
assert.deepStrictEqual(actualHeapSpaceNames.sort(), expectedHeapSpaces.sort());
heapSpaceStatistics.forEach((heapSpace) => {
assert.strictEqual(typeof heapSpace.space_name, 'string');
assert.strictEqual(typeof heapSpace.space_size, 'number');
assert.strictEqual(typeof heapSpace.space_used_size, 'number');
assert.strictEqual(typeof heapSpace.space_available_size, 'number');
assert.strictEqual(typeof heapSpace.physical_space_size, 'number');
});