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// META: global=window,dedicatedworker,sharedworker
'use strict';
test(t => {
const observer = new PressureObserver(() => {}, {sampleInterval: 0});
assert_equals(typeof observer, 'object');
}, 'PressureObserver constructor doesnt throw error for sampleInterval value 0');
test(t => {
assert_throws_js(TypeError, () => {
new PressureObserver(() => {}, {sampleInterval: -2});
});
}, 'PressureObserver constructor requires a positive sampleInterval');
test(t => {
assert_throws_js(TypeError, () => {
new PressureObserver(() => {}, {sampleInterval: 2 ** 32});
});
}, 'PressureObserver constructor requires a sampleInterval in unsigned long range');
test(t => {
const observer = new PressureObserver(() => {}, {});
assert_equals(typeof observer, 'object');
}, 'PressureObserver constructor succeeds on empty sampleInterval');
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