1 files changed, 20 insertions, 0 deletions
diff --git a/testing/web-platform/tests/screen-details/permission.https.window.js b/testing/web-platform/tests/screen-details/permission.https.window.js
new file mode 100644
index 0000000000..32596fac9e
--- /dev/null
+++ b/testing/web-platform/tests/screen-details/permission.https.window.js
@@ -0,0 +1,20 @@
+// META: global=window
+// META: script=/resources/testdriver.js
+// META: script=/resources/testdriver-vendor.js
+"use strict";
+
+promise_test(async t => {
+  await test_driver.set_permission({ name: "window-placement" }, "denied");
+
+  const status = await navigator.permissions.query({ name:"window-placement" });
+  assert_class_string(status, "PermissionStatus");
+  assert_equals(status.state, "denied");
+}, "Deny window management permission should work.");
+
+promise_test(async t => {
+  await test_driver.set_permission({ name: "window-placement" }, "granted");
+
+  const status = await navigator.permissions.query({ name: "window-placement" });
+  assert_class_string(status, "PermissionStatus");
+  assert_equals(status.state, "granted");
+}, "Grant window management permission should work.");