Cloning a bunch of stuff from the native_client repository at r6528

ppapi/native_client/tests/ppapi_browser/ppp_instance/ppapi_ppp_instance.js

+// Copyright (c) 2011 The Native Client Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+function startsWith(str, prefix) {
+  return (str.indexOf(prefix) === 0);
+}
+
+function setupTests(tester, plugin) {
+  //////////////////////////////////////////////////////////////////////////////
+  // Test Helpers
+  //////////////////////////////////////////////////////////////////////////////
+  var numMessages = 0;
+  function addTestListeners(numListeners, test, testFunction, runCheck) {
+    var messageListener = test.wrap(function(message) {
+      if (!startsWith(message.data, testFunction)) return;
+      test.log(message.data);
+      numMessages++;
+      plugin.removeEventListener('message', messageListener, false);
+      test.assertEqual(message.data, testFunction + ':PASSED');
+      if (runCheck) test.assert(runCheck());
+      if (numMessages < numListeners) {
+        plugin.addEventListener('message', messageListener, false);
+      } else {
+        numMessages = 0;
+        test.pass();
+      }
+    });
+    plugin.addEventListener('message', messageListener, false);
+  }
+
+  function addTestListener(test, testFunction, runCheck) {
+    return addTestListeners(1, test, testFunction, runCheck);
+  }
+
+  //////////////////////////////////////////////////////////////////////////////
+  // Tests
+  //////////////////////////////////////////////////////////////////////////////
+
+  tester.addTest('PPP_Instance::DidCreate', function() {
+    assertEqual(plugin.lastError, '');
+  });
+
+  tester.addAsyncTest('PPP_Instance::DidChangeView', function(test) {
+    addTestListeners(3, test, 'DidChangeView');
+  });
+
+  tester.addAsyncTest('PPP_Instance::DidChangeFocus', function(test) {
+    // TODO(polina): How can I simulate focusing on Windows?
+    // For now just pass explicitely.
+    if (startsWith(navigator.platform, 'Win')) {
+      test.log('skipping test on ' + navigator.platform);
+      test.pass();
+      return;
+    }
+    addTestListeners(2, test, 'DidChangeFocus');
+    plugin.tabIndex = 0;
+    plugin.focus();
+    plugin.blur();
+  });
+
+  // PPP_Instance::HandleDocumentLoad is only used with full-frame plugins.
+  // This is tested in tests/ppapi_browser/extension_mime_handler/
+
+  // PPP_Instance::DidDestroy is never invoked in the untrusted code.
+  // We could wait for a crash event from it, but CallOnMainThread semantics
+  // on shutdown are still buggy, so it might never come even if the function
+  // triggered. Plus waiting for something not to happen makes the test flaky.
+}