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'use strict';
function test_query_selector(parentNode, selector, expected) {
if (!Array.isArray(expected))
expected = [ expected ];
test(function(){
const elementList = parentNode.querySelectorAll(selector);
assert_equals(elementList.length, expected.length);
for (let i = 0; i < elementList.length; ++i) {
if (typeof expected[i] === 'string')
assert_equals(elementList[i].id, expected[i]);
else
assert_equals(elementList[i], expected[i]);
}
}, "Selector '" + selector + '" should find the expected elements');
}