4 files changed, 74 insertions, 0 deletions
diff --git a/testing/web-platform/tests/idle-detection/resources/idle-detection-allowed-by-permissions-policy-worker.js b/testing/web-platform/tests/idle-detection/resources/idle-detection-allowed-by-permissions-policy-worker.js
new file mode 100644
index 0000000000..1fe410ed11
--- /dev/null
+++ b/testing/web-platform/tests/idle-detection/resources/idle-detection-allowed-by-permissions-policy-worker.js
@@ -0,0 +1,16 @@
+'use strict';
+
+importScripts('/resources/testharness.js');
+
+let workerType;
+
+if (typeof postMessage === 'function') {
+  workerType = 'dedicated';
+}
+
+promise_test(async () => {
+  await new IdleDetector().start()
+},
+    `Inherited header permissions policy allows ${workerType} workers.`)
+
+done();
diff --git a/testing/web-platform/tests/idle-detection/resources/idle-detection-disabled-by-permissions-policy-worker.js b/testing/web-platform/tests/idle-detection/resources/idle-detection-disabled-by-permissions-policy-worker.js
new file mode 100644
index 0000000000..c30f7c188e
--- /dev/null
+++ b/testing/web-platform/tests/idle-detection/resources/idle-detection-disabled-by-permissions-policy-worker.js
@@ -0,0 +1,22 @@
+'use strict';
+
+importScripts('/resources/testharness.js');
+
+const header = 'Permissions-Policy header idle-detection=()';
+let workerType;
+
+if (typeof postMessage === 'function') {
+  workerType = 'dedicated';
+}
+
+promise_test(async () => {
+  try {
+    await new IdleDetector().start();
+    assert_unreached('expected start() to throw with SecurityError');
+  } catch (error) {
+    assert_equals(error.name, 'SecurityError');
+  }
+},
+`Inherited ${header} disallows ${workerType} workers.`);
+
+done();
diff --git a/testing/web-platform/tests/idle-detection/resources/idle-detection-helper.js b/testing/web-platform/tests/idle-detection/resources/idle-detection-helper.js
new file mode 100644
index 0000000000..f053e635e0
--- /dev/null
+++ b/testing/web-platform/tests/idle-detection/resources/idle-detection-helper.js
@@ -0,0 +1,14 @@
+'use strict';
+
+// These tests rely on the User Agent providing an implementation of
+// platform nfc backends.
+//
+// In Chromium-based browsers this implementation is provided by a polyfill
+// in order to reduce the amount of test-only code shipped to users. To enable
+// these tests the browser must be run with these options:
+//
+//   --enable-blink-features=MojoJS,MojoJSTest
+
+async function loadChromiumResources() {
+  await import('/resources/chromium/mock-idle-detection.js');
+}
diff --git a/testing/web-platform/tests/idle-detection/resources/idlharness-worker.js b/testing/web-platform/tests/idle-detection/resources/idlharness-worker.js
new file mode 100644
index 0000000000..9733050284
--- /dev/null
+++ b/testing/web-platform/tests/idle-detection/resources/idlharness-worker.js
@@ -0,0 +1,22 @@
+'use strict';
+
+importScripts("/resources/testharness.js");
+importScripts("/resources/WebIDLParser.js", "/resources/idlharness.js");
+
+idl_test(
+    ['idle-detection'],
+    ['dom', 'html'],
+    async (idl_array, t) => {
+      self.idle = new IdleDetector();
+      let watcher = new EventWatcher(t, self.idle, ["change"]);
+      let initial_state = watcher.wait_for("change");
+      await self.idle.start();
+      await initial_state;
+
+      idl_array.add_objects({
+        IdleDetector: ['idle'],
+      });
+    }
+);
+
+done();