1 files changed, 42 insertions, 0 deletions
diff --git a/testing/web-platform/tests/webhid/resources/automation.js b/testing/web-platform/tests/webhid/resources/automation.js
new file mode 100644
index 0000000000..f7477d1ecc
--- /dev/null
+++ b/testing/web-platform/tests/webhid/resources/automation.js
@@ -0,0 +1,42 @@
+'use strict';
+
+let fakeHidService = undefined;
+
+function hid_test(func, name, properties) {
+  promise_test(async (test) => {
+    assert_implements(navigator.hid, 'missing navigator.hid');
+    if (fakeHidService === undefined) {
+      // Try loading a polyfill for the fake hid service.
+      if (isChromiumBased) {
+        const fakes = await import('/resources/chromium/fake-hid.js');
+        fakeHidService = fakes.fakeHidService;
+      }
+    }
+    assert_implements(
+        fakeHidService, 'missing fakeHidService after initialization');
+
+    fakeHidService.start();
+    try {
+      await func(test, fakeHidService);
+    } finally {
+      fakeHidService.stop();
+      fakeHidService.reset();
+    }
+  }, name, properties);
+}
+
+function trustedClick() {
+  return new Promise(resolve => {
+    let button = document.createElement('button');
+    button.textContent = 'click to continue test';
+    button.style.display = 'block';
+    button.style.fontSize = '20px';
+    button.style.padding = '10px';
+    button.onclick = () => {
+      document.body.removeChild(button);
+      resolve();
+    };
+    document.body.appendChild(button);
+    test_driver.click(button);
+  });
+}