Upstream JavaBridge tests.

content/public/android/javatests/src/org/chromium/content/browser/JavaBridgeTestBase.java

+// Copyright (c) 2012 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+package org.chromium.content.browser;
+
+import junit.framework.Assert;
+
+import org.chromium.content.browser.LoadUrlParams;
+
+/**
+ * Common functionality for testing the Java Bridge.
+ */
+public class JavaBridgeTestBase extends ContentViewTestBase {
+    protected class Controller {
+        private boolean mIsResultReady;
+
+        protected synchronized void notifyResultIsReady() {
+            mIsResultReady = true;
+            notify();
+        }
+        protected synchronized void waitForResult() {
+            while (!mIsResultReady) {
+                try {
+                    wait(5000);
+                } catch (Exception e) {
+                    continue;
+                }
+                if (!mIsResultReady) {
+                    Assert.fail("Wait timed out");
+                }
+            }
+            mIsResultReady = false;
+        }
+    }
+
+    protected void executeJavaScript(final String script) throws Throwable {
+        runTestOnUiThread(new Runnable() {
+            @Override
+            public void run() {
+                // When a JavaScript URL is executed, if the value of the last
+                // expression evaluated is not 'undefined', this value is
+                // converted to a string and used as the new document for the
+                // frame. We don't want this behaviour, so wrap the script in
+                // an anonymous function.
+                getContentView().loadUrl(new LoadUrlParams(
+                        "javascript:(function() { " + script + " })()"));
+            }
+        });
+    }
+}