diff options
Diffstat (limited to 'testing/web-platform/tests/compute-pressure/observe_return_type.https.any.js')
-rw-r--r-- | testing/web-platform/tests/compute-pressure/observe_return_type.https.any.js | 18 |
1 files changed, 18 insertions, 0 deletions
diff --git a/testing/web-platform/tests/compute-pressure/observe_return_type.https.any.js b/testing/web-platform/tests/compute-pressure/observe_return_type.https.any.js new file mode 100644 index 0000000000..b24878ab39 --- /dev/null +++ b/testing/web-platform/tests/compute-pressure/observe_return_type.https.any.js @@ -0,0 +1,18 @@ +// META: script=/resources/test-only-api.js +// META: script=resources/pressure-helpers.js +// META: global=window,dedicatedworker,sharedworker + +'use strict'; + +// Regression test for https://issues.chromium.org/issues/333957909 +// Make sure that observe() always returns a Promise. +pressure_test(async (t, mockPressureService) => { + const observer = new PressureObserver(() => {}); + t.add_cleanup(() => observer.disconnect()); + + for (let i = 0; i < 2; i++) { + const promise = observer.observe('cpu'); + assert_class_string(promise, 'Promise'); + await promise; + } +}, 'PressureObserver.observe() is idempotent'); |