1 files changed, 13 insertions, 0 deletions
diff --git a/testing/web-platform/tests/cookie-store/cookieStore_delete_basic.https.any.js b/testing/web-platform/tests/cookie-store/cookieStore_delete_basic.https.any.js
new file mode 100644
index 0000000000..08a1fac5af
--- /dev/null
+++ b/testing/web-platform/tests/cookie-store/cookieStore_delete_basic.https.any.js
@@ -0,0 +1,13 @@
+// META: title=Cookie Store API: cookieStore.delete() return type
+// META: global=window,serviceworker
+
+'use strict';
+
+promise_test(async testCase => {
+  const p = cookieStore.delete('cookie-name');
+  assert_true(p instanceof Promise,
+              'cookieStore.delete() returns a promise');
+  const result = await p;
+  assert_equals(result, undefined,
+                'cookieStore.delete() promise resolves to undefined');
+}, 'cookieStore.delete return type is Promise<void>');