Adding WebView select tests to test select element's dropdown menu

android_webview/tools/automated_ui_tests/javatests/src/org/chromium/webview_ui_test/test/util/Actions.java

Index: android_webview/tools/automated_ui_tests/javatests/src/org/chromium/webview_ui_test/test/util/Actions.java
diff --git a/android_webview/tools/automated_ui_tests/javatests/src/org/chromium/webview_ui_test/test/util/Actions.java b/android_webview/tools/automated_ui_tests/javatests/src/org/chromium/webview_ui_test/test/util/Actions.java
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index 0000000000000000000000000000000000000000..bf2fecc085a0e33b78453c820b12a6445ad686ed
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+++ b/android_webview/tools/automated_ui_tests/javatests/src/org/chromium/webview_ui_test/test/util/Actions.java
@@ -0,0 +1,82 @@
+// Copyright 2016 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.webview_ui_test.test.util;
+
+import static android.support.test.espresso.matcher.ViewMatchers.isAssignableFrom;
+import static android.support.test.espresso.matcher.ViewMatchers.isDescendantOfA;
+import static android.support.test.espresso.matcher.ViewMatchers.withEffectiveVisibility;
+
+import static org.hamcrest.Matchers.allOf;
+
+import android.support.annotation.NonNull;
+import android.support.test.espresso.UiController;
+import android.support.test.espresso.ViewAction;
+import android.support.test.espresso.matcher.ViewMatchers;
+import android.view.View;
+import android.webkit.WebView;
+
+import org.hamcrest.Matcher;
+
+/**
+ * Actions to help with WebView tests
+ */
+public class Actions {
+
+    public static ViewAction setUseWideViewPort() {
+        return setUseWideViewPort(true);
+    }
+    public static ViewAction setUseWideViewPort(final boolean useWideViewPort) {
+        return new ViewAction() {
+            @Override
+            public Matcher<View> getConstraints() {
+                return isAssignableFrom(WebView.class);
+            }
+
+            @Override
+            public String getDescription() {
+                return "use wide viewport: " + useWideViewPort;
+            }
+
+            /**
+             * Performs setUseWideViewPort then waits for completion.
+             *
+             * @param uiController the controller to use to interact with the UI.
+             * @param view         the view to act upon.  Must be webview or a subclass thereof.
+             */
+            @Override
+            public void perform(UiController uiController, @NonNull View view) {
+                WebView webview = (WebView) view;
+                webview.getSettings().setUseWideViewPort(useWideViewPort);
+                uiController.loopMainThreadUntilIdle();
+            }
+        };
+    }
+    public static ViewAction scrollBy(final int x, final int y) {
+        return new ViewAction() {
+            @Override
+            public Matcher<View> getConstraints() {
+                return allOf(withEffectiveVisibility(ViewMatchers.Visibility.VISIBLE),
+                    isDescendantOfA(isAssignableFrom(View.class)));
+            }
+
+            @Override
+            public String getDescription() {
+                return "scroll by: " + x + "," + y;
+            }
+
+            /**
+             * Performs setUseWideViewPort then waits for completion.
+             *
+             * @param uiController the controller to use to interact with the UI.
+             * @param view         the view to act upon.
+             */
+            @Override
+            public void perform(UiController uiController, @NonNull View view) {
+                view.scrollBy(x, y);
+                uiController.loopMainThreadUntilIdle();
+            }
+        };
+    }
+}