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function assert_animations(filterFn, mappingFn, expected, message) {
const values = document.getAnimations()
.filter(filterFn)
.map(mappingFn);
const unique_values = [...new Set(values)].sort();
const format = entries => entries.join(", ");
assert_equals(format(unique_values), format(expected), message);
}
function assert_animation_pseudos(element, expected, message) {
const filterFn = a => a.effect.target == element;
const mappingFn = a => a.effect.pseudoElement;
return assert_animations(filterFn, mappingFn, expected, message);
}
function assert_animation_names(target, expected, message) {
const filterFn = a => a.effect.pseudoElement == target;
const mappingFn = a => a.animationName;
return assert_animations(filterFn, mappingFn, expected, message);
}