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function checkContainer(actual, expected) {
if (!actual) return true;
if (!expected) return false;
return actual.id == expected.id && actual.src == expected.src;
}
function checkAttribution(attribution, expected) {
assert_own_property(attribution, 'url');
assert_own_property(attribution, 'scope');
let found = false;
for (const e of expected) {
if (attribution.url === e.url &&
attribution.scope === e.scope &&
checkContainer(attribution.container, e.container)) {
found = true;
e.found = true;
}
}
assert_true(found, JSON.stringify(attribution) +
' is not found in ' + JSON.stringify(expected) + '.');
}
function checkBreakdown(breakdown, expected) {
assert_own_property(breakdown, 'bytes');
assert_greater_than_equal(breakdown.bytes, 0);
assert_own_property(breakdown, 'types');
for (const memoryType of breakdown.types) {
assert_equals(typeof memoryType, 'string');
}
assert_own_property(breakdown, 'attribution');
for (const attribution of breakdown.attribution) {
checkAttribution(attribution, expected);
}
}
function isEmptyBreakdownEntry(entry) {
return entry.bytes === 0 && entry.attribution.length === 0 &&
entry.types.length === 0;
}
function checkMeasureMemory(result, expected) {
assert_own_property(result, 'bytes');
assert_own_property(result, 'breakdown');
let bytes = 0;
for (let breakdown of result.breakdown) {
checkBreakdown(breakdown, expected);
bytes += breakdown.bytes;
}
assert_equals(bytes, result.bytes);
for (const e of expected) {
if (e.required) {
assert_true(e.found,
JSON.stringify(e) + ' did not appear in the result.');
}
}
assert_true(result.breakdown.some(isEmptyBreakdownEntry),
'The result must include an empty breakdown entry.');
}
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