diff --git a/clipboard-apis/async-navigator-clipboard-basics.https.html b/clipboard-apis/async-navigator-clipboard-basics.https.html
index 55157f3bda230c..4a11d5ac66d845 100644
--- a/clipboard-apis/async-navigator-clipboard-basics.https.html
+++ b/clipboard-apis/async-navigator-clipboard-basics.https.html
@@ -2,17 +2,42 @@
 <meta charset="utf-8">
 <title>Async Clipboard input type validation tests</title>
 <link rel="help" href="https://w3c.github.io/clipboard-apis/#async-clipboard-api">
+<body>Body needed for test_driver.click()</body>
 <script src="/resources/testharness.js"></script>
 <script src="/resources/testharnessreport.js"></script>
+<script src="/resources/testdriver.js"></script>
+<script src="/resources/testdriver-vendor.js"></script>
+<script src="resources/user-activation.js"></script>
 <script>
 
+// Permissions are required in order to invoke navigator.clipboard functions in
+// an automated test.
+async function getPermissions() {
+  await test_driver.set_permission({name: 'clipboard-read'}, 'granted');
+  await test_driver.set_permission({name: 'clipboard-write'}, 'granted');
+  await waitForUserActivation();
+}
+
 test(() => {
   assert_not_equals(navigator.clipboard, undefined);
   assert_true(navigator.clipboard instanceof Clipboard);
   assert_equals(navigator.clipboard, navigator.clipboard);
 }, 'navigator.clipboard exists');
 
+promise_test(async t => {
+  await getPermissions();
+  const text_plain = "This text was copied using `Clipboard.prototype.write`.";
+  const html_text = "<p style='color: red; font-style: oblique;'>Test</p>";
+  await promise_rejects_dom(t, "NotAllowedError", navigator.clipboard.write([
+   new ClipboardItem({
+            "text/plain":  text_plain,
+            "text/html" : html_text
+        }),
+    ]));
+  }, 'navigator.clipboard.write(Promise<DOMString>) fails');
+
 promise_test(async () => {
+  await getPermissions();
   const blob = new Blob(['hello'], {type: 'text/plain'});
   const item = new ClipboardItem({'text/plain': blob});
 
@@ -20,38 +45,58 @@
 }, 'navigator.clipboard.write([text/plain ClipboardItem]) succeeds');
 
 promise_test(async t => {
+  await getPermissions();
+  const blob1 = new Blob(['hello'], {type: 'text/plain'});
+  const blob2 = new Blob(['world'], {type: 'text/plain'});
+
+  const item1 = new ClipboardItem({'text/plain': blob1});
+  const item2 = new ClipboardItem({'text/plain': blob2});
+
+  await promise_rejects_dom(t, "NotAllowedError",
+      navigator.clipboard.write([item1, item2]));
+}, 'navigator.clipboard.write([>1 ClipboardItems]) fails (not implemented)');
+
+promise_test(async t => {
+  await getPermissions();
   await promise_rejects_js(t, TypeError, navigator.clipboard.write());
 }, 'navigator.clipboard.write() fails (expect [ClipboardItem])');
 
 promise_test(async t => {
+  await getPermissions();
   await promise_rejects_js(t, TypeError, navigator.clipboard.write(null));
 }, 'navigator.clipboard.write(null) fails (expect [ClipboardItem])');
 
 promise_test(async t => {
+  await getPermissions();
   await promise_rejects_js(t, TypeError,
-                         navigator.clipboard.write('Bad string'));
+                           navigator.clipboard.write('Bad string'));
 }, 'navigator.clipboard.write(DOMString) fails (expect [ClipboardItem])');
 
 promise_test(async t => {
+  await getPermissions();
   const blob = new Blob(['hello'], {type: 'text/plain'});
   await promise_rejects_js(t, TypeError, navigator.clipboard.write(blob));
 }, 'navigator.clipboard.write(Blob) fails (expect [ClipboardItem])');
 
 promise_test(async () => {
+  await getPermissions();
   await navigator.clipboard.writeText('New clipboard text');
 }, 'navigator.clipboard.writeText(DOMString) succeeds');
 
 promise_test(async t => {
+  await getPermissions();
   await promise_rejects_js(t, TypeError,
-                         navigator.clipboard.writeText());
+                           navigator.clipboard.writeText());
 }, 'navigator.clipboard.writeText() fails (expect DOMString)');
 
 promise_test(async () => {
+  await getPermissions();
   const item = new ClipboardItem({'text/plain': 'test'});
   await navigator.clipboard.write([item]);
 }, 'navigator.clipboard.write({string : DOMString}) succeeds');
 
 promise_test(async () => {
+  await getPermissions();
   const fetched = await fetch('/clipboard-apis/resources/greenbox.png');
   const image = await fetched.blob();
   const item = new ClipboardItem({'image/png': image});
@@ -60,6 +105,7 @@
 }, 'navigator.clipboard.write({string : image/png Blob}) succeeds');
 
 promise_test(async() => {
+  await getPermissions();
   const fetched = await fetch('/clipboard-apis/resources/greenbox.png');
   const image = await fetched.blob();
   const item = new ClipboardItem({
@@ -70,17 +116,20 @@
 }, 'navigator.clipboard.write([text + png] succeeds');
 
 promise_test(async t => {
+  await getPermissions();
   const item = new ClipboardItem({'image/png': 'not an image'});
   await promise_rejects_js(t, TypeError, navigator.clipboard.write([item]));
 }, 'navigator.clipboard.write(image/png DOMString) fails');
 
 promise_test(async () => {
+  await getPermissions();
   const result = await navigator.clipboard.read();
   assert_true(result instanceof Object);
   assert_true(result[0] instanceof ClipboardItem);
 }, 'navigator.clipboard.read() succeeds');
 
 promise_test(async () => {
+  await getPermissions();
   const result = await navigator.clipboard.readText();
   assert_equals(typeof result, 'string');
 }, 'navigator.clipboard.readText() succeeds');
