1 files changed, 123 insertions, 0 deletions
diff --git a/testing/web-platform/tests/clipboard-apis/async-custom-formats-write-fail.tentative.https.html b/testing/web-platform/tests/clipboard-apis/async-custom-formats-write-fail.tentative.https.html
new file mode 100644
index 0000000000..8b1b42ec78
--- /dev/null
+++ b/testing/web-platform/tests/clipboard-apis/async-custom-formats-write-fail.tentative.https.html
@@ -0,0 +1,123 @@
+<!doctype html>
+<meta charset="utf-8">
+<title>Async Clipboard web custom format write 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>
+'use strict';
+
+promise_test(async t => {
+  await test_driver.set_permission({name: 'clipboard-write'}, 'granted');
+
+  const customFormatArray = [];
+  const customFormatMap = {};
+  for (let i = 0; i <= 100; i++) {
+    customFormatArray.push("web text/CustomFormat" + i);
+    const blobInput = new Blob(['input data'], {type: customFormatArray[i]});
+    customFormatMap[customFormatArray[i]] = blobInput;
+  }
+  const clipboardItemInput = new ClipboardItem(customFormatMap);
+  await waitForUserActivation();
+  await promise_rejects_dom(t, 'NotAllowedError',
+      navigator.clipboard.write([clipboardItemInput]));
+}, 'navigator.clipboard.write() fails for more than 100 custom formats');
+
+promise_test(async t => {
+  await test_driver.set_permission({name: 'clipboard-write'}, 'granted');
+
+  const format1 = 'application/x-custom-format-clipboard-test-format-1';
+  const format2 = 'application/x-custom-format-clipboard-test-format-2';
+  const blobInput1 = new Blob(['input data 1'], {type: format1});
+  const blobInput2 = new Blob(['input data 2'], {type: format2});
+  const clipboardItemInput = new ClipboardItem(
+      {[format1]: blobInput1, [format2]: blobInput2});
+  await waitForUserActivation();
+  await promise_rejects_dom(t, 'NotAllowedError',
+      navigator.clipboard.write([clipboardItemInput]));
+}, 'navigator.clipboard.write() fails for custom formats without web prefix');
+
+promise_test(async t => {
+  await test_driver.set_permission({name: 'clipboard-write'}, 'granted');
+
+  const format1 = 'web ';
+  const format2 = 'web a';
+  const blobInput1 = new Blob(['input data 1'], {type: format1});
+  const blobInput2 = new Blob(['input data 2'], {type: format2});
+  const clipboardItemInput = new ClipboardItem(
+      {[format1]: blobInput1, [format2]: blobInput2});
+  await waitForUserActivation();
+  await promise_rejects_dom(t, 'NotAllowedError',
+      navigator.clipboard.write([clipboardItemInput]));
+}, 'navigator.clipboard.write() fails for custom formats with web prefix, but invalid MIME types');
+
+promise_test(async t => {
+  await test_driver.set_permission({name: 'clipboard-write'}, 'granted');
+
+  const format1 = 'web text/plain';
+  const format2 = 'text/custom';
+  const blobInput1 = new Blob(['input data 1'], {type: format2});
+  const clipboardItemInput = new ClipboardItem(
+      {[format1]: blobInput1});
+  await waitForUserActivation();
+  await promise_rejects_dom(t, 'NotAllowedError',
+      navigator.clipboard.write([clipboardItemInput]));
+}, 'navigator.clipboard.write() fails for custom format with web prefix, but different Blob type');
+
+promise_test(async t => {
+  await test_driver.set_permission({name: 'clipboard-write'}, 'granted');
+
+  const format1 = 'web Text/plain';
+  const format2 = 'text/plain';
+  const blobInput1 = new Blob(['input data 1'], {type: format2});
+  const clipboardItemInput = new ClipboardItem(
+      {[format1]: blobInput1});
+      await waitForUserActivation();
+  await promise_rejects_dom(t, 'NotAllowedError',
+      navigator.clipboard.write([clipboardItemInput]));
+}, 'navigator.clipboard.write() fails for custom format with different case than the Blob type');
+
+promise_test(async t => {
+  await test_driver.set_permission({name: 'clipboard-write'}, 'granted');
+
+  const format1 = 'web text/plain';
+  const format2 = 'Text/plain';
+  const blobInput1 = new Blob(['input data 1'], {type: format1});
+  const clipboardItemInput = new ClipboardItem(
+      {[format2]: blobInput1});
+  await waitForUserActivation();
+  await promise_rejects_dom(t, 'NotAllowedError',
+      navigator.clipboard.write([clipboardItemInput]));
+}, 'navigator.clipboard.write() fails for invalid mime type that is different than the Blob type');
+
+promise_test(async t => {
+  await test_driver.set_permission({name: 'clipboard-write'}, 'granted');
+
+  const format1 = 'web Text/plain';
+  const format2 = 'web text/plain';
+  const blobInput1 = new Blob(['input data 1'], {type: format2});
+  const clipboardItemInput = new ClipboardItem(
+      {[format1]: blobInput1});
+      await waitForUserActivation();
+  await promise_rejects_dom(t, 'NotAllowedError',
+      navigator.clipboard.write([clipboardItemInput]));
+}, 'navigator.clipboard.write() fails for invalid mime type with web prefix and the Blob type');
+
+promise_test(async t => {
+  await test_driver.set_permission({name: 'clipboard-write'}, 'granted');
+
+  const format1 = 'Text/plain';
+  const format2 = 'text/plain';
+  const blobInput1 = new Blob(['input data 1'], {type: format2});
+  const clipboardItemInput = new ClipboardItem(
+      {[format1]: blobInput1});
+  await waitForUserActivation();
+  await promise_rejects_dom(t, 'NotAllowedError',
+      navigator.clipboard.write([clipboardItemInput]));
+}, 'navigator.clipboard.write() fails for custom format and Blob type with different case');
+
+</script>