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'use strict';
require('../common');
const assert = require('assert');
const v8 = require('v8');
const s = v8.getHeapStatistics();
const keys = [
'does_zap_garbage',
'heap_size_limit',
'malloced_memory',
'number_of_detached_contexts',
'number_of_native_contexts',
'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.strictEqual(typeof s[key], 'number');
});
const heapCodeStatistics = v8.getHeapCodeStatistics();
const heapCodeStatisticsKeys = [
'bytecode_and_metadata_size',
'code_and_metadata_size',
'external_script_source_size'];
assert.deepStrictEqual(Object.keys(heapCodeStatistics).sort(),
heapCodeStatisticsKeys);
heapCodeStatisticsKeys.forEach(function(key) {
assert.strictEqual(typeof heapCodeStatistics[key], 'number');
});
const expectedHeapSpaces = [
'code_large_object_space',
'code_space',
'large_object_space',
'map_space',
'new_large_object_space',
'new_space',
'old_space',
'read_only_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');
});
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