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// Copyright 2019 the V8 project authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
// Test the performance.measureMemory() function of d8. This test only makes
// sense with d8.
load('test/mjsunit/mjsunit.js');
function assertLessThanOrEqual(a, b) {
assertTrue(a <= b, `Expected ${a} <= ${b}`);
}
function checkMeasureMemoryResult(result) {
assertTrue('total' in result);
assertTrue('jsMemoryEstimate' in result.total);
assertTrue('jsMemoryRange' in result.total);
assertEquals('number', typeof result.total.jsMemoryEstimate);
assertEquals(2, result.total.jsMemoryRange.length);
assertEquals('number', typeof result.total.jsMemoryRange[0]);
assertEquals('number', typeof result.total.jsMemoryRange[1]);
assertLessThanOrEqual(result.total.jsMemoryRange[0],
result.total.jsMemoryRange[1]);
assertLessThanOrEqual(result.total.jsMemoryRange[0],
result.total.jsMemoryEstimate);
assertLessThanOrEqual(result.total.jsMemoryEstimate,
result.total.jsMemoryRange[1]);
}
if (this.performance && performance.measureMemory) {
assertPromiseResult((async () => {
let result = await performance.measureMemory();
checkMeasureMemoryResult(result);
})());
assertPromiseResult((async () => {
let result = await performance.measureMemory({detailed: false});
checkMeasureMemoryResult(result);
})());
assertPromiseResult((async () => {
let result = await performance.measureMemory({detailed: true});
// TODO(ulan): Also check the detailed results once measureMemory
// supports them.
checkMeasureMemoryResult(result);
})());
}
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