1 files changed, 24 insertions, 19 deletions
diff --git a/testing/web-platform/tests/compute-pressure/compute_pressure_options.https.any.js b/testing/web-platform/tests/compute-pressure/compute_pressure_options.https.any.js
index d0760ef622..ecf3c29dbf 100644
--- a/testing/web-platform/tests/compute-pressure/compute_pressure_options.https.any.js
+++ b/testing/web-platform/tests/compute-pressure/compute_pressure_options.https.any.js
@@ -1,26 +1,31 @@
+// META: script=/resources/test-only-api.js
+// META: script=resources/pressure-helpers.js
 // 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});
+pressure_test(async (t, mockPressureService) => {
+  await new Promise(resolve => {
+    const observer = new PressureObserver(resolve);
+    t.add_cleanup(() => observer.disconnect());
+    observer.observe('cpu', {sampleInterval: 0});
+    mockPressureService.setPressureUpdate('cpu', 'critical');
+    mockPressureService.startPlatformCollector(/*sampleInterval=*/ 200);
   });
-}, 'PressureObserver constructor requires a positive sampleInterval');
+}, 'PressureObserver observe method doesnt throw error for sampleInterval value 0');
 
-test(t => {
-  assert_throws_js(TypeError, () => {
-    new PressureObserver(() => {}, {sampleInterval: 2 ** 32});
-  });
-}, 'PressureObserver constructor requires a sampleInterval in unsigned long range');
+promise_test(async t => {
+  const observer =
+      new PressureObserver(t.unreached_func('oops should not end up here'));
+  t.add_cleanup(() => observer.disconnect());
+  await promise_rejects_js(
+      t, TypeError, observer.observe('cpu', {sampleInterval: -2}));
+}, 'PressureObserver observe method requires a positive sampleInterval');
 
-test(t => {
-  const observer = new PressureObserver(() => {}, {});
-  assert_equals(typeof observer, 'object');
-}, 'PressureObserver constructor succeeds on empty sampleInterval');
+promise_test(async t => {
+  const observer =
+      new PressureObserver(t.unreached_func('oops should not end up here'));
+  t.add_cleanup(() => observer.disconnect());
+  await promise_rejects_js(
+      t, TypeError, observer.observe('cpu', {sampleInterval: 2 ** 32}));
+}, 'PressureObserver observe method requires a sampleInterval in unsigned long range');