1 files changed, 58 insertions, 0 deletions
diff --git a/testing/web-platform/tests/cookie-store/change_eventhandler_for_no_name_and_no_value.https.window.js b/testing/web-platform/tests/cookie-store/change_eventhandler_for_no_name_and_no_value.https.window.js
new file mode 100644
index 0000000000..4498caf596
--- /dev/null
+++ b/testing/web-platform/tests/cookie-store/change_eventhandler_for_no_name_and_no_value.https.window.js
@@ -0,0 +1,58 @@
+// META: title=Cookie Store API: Observing 'change' events in document when modifications API is called with blank arguments
+// META: script=resources/cookie-test-helpers.js
+
+'use strict';
+
+cookie_test(async t => {
+  let eventPromise = observeNextCookieChangeEvent();
+  await cookieStore.set('', 'first-value');
+  const actual1 =
+      (await cookieStore.getAll('')).map(({ value }) => value).join(';');
+  const expected1 = 'first-value';
+  assert_equals(actual1, expected1);
+  await verifyCookieChangeEvent(
+    eventPromise, {changed: [{name: '', value: 'first-value'}]},
+    'Observed no-name change');
+
+  await promise_rejects_js(
+    t,
+    TypeError,
+    cookieStore.set('', ''),
+    'Expected promise rejection when setting a cookie with' +
+      ' no name and no value');
+
+  await promise_rejects_js(
+    t,
+    TypeError,
+    cookieStore.set({name: '', value: ''}),
+    'Expected promise rejection when setting a cookie with' +
+      ' no name and no value');
+
+  const cookies = await cookieStore.getAll('');
+  assert_equals(cookies.length, 1);
+  assert_equals(cookies[0].name, '');
+  assert_equals(cookies[0].value, 'first-value',
+      'Cookie with no name should still have previous value.');
+
+  eventPromise = observeNextCookieChangeEvent();
+  await cookieStore.delete('');
+  await verifyCookieChangeEvent(
+    eventPromise, {deleted: [{name: ''}]},
+    'Observed no-name deletion');
+
+  assert_equals(
+    await getCookieString(),
+      undefined,
+      'Empty cookie jar');
+  assert_equals(
+    await getCookieStringHttp(),
+    undefined,
+    'Empty HTTP cookie jar');
+  if (kHasDocument) {
+    assert_equals(
+      await getCookieStringDocument(),
+      undefined,
+      'Empty document.cookie cookie jar');
+  }
+
+}, 'Verify behavior of no-name and no-value cookies.');