27 lines
1,008 B
JavaScript
27 lines
1,008 B
JavaScript
// META: script=/common/get-host-info.sub.js
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// META: script=./resources/checker.js
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// META: script=./resources/common.js
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// META: timeout=long
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'use strict';
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function indexOfEmptyEntry(result) {
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return result.breakdown.findIndex(isEmptyBreakdownEntry);
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}
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promise_test(async testCase => {
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assert_true(self.crossOriginIsolated);
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const initial = await performance.measureUserAgentSpecificMemory();
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let observed_different_order = false;
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for (let i = 0; i < 100; ++i) {
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const current = await performance.measureUserAgentSpecificMemory();
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if (indexOfEmptyEntry(initial) != indexOfEmptyEntry(current)) {
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observed_different_order = true;
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}
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}
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// The order of the breakdown entries must be randomized.
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// A conforming implementation may fail the following assert with
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// the probability of at most 2^-100 since there are at least two
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// entries in the breakdown.
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assert_true(observed_different_order);
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}, 'Well-formed result of performance.measureUserAgentSpecificMemory.');
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