Create ContentShellActivityTestRule and BaseJUnitRunner

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

Index: content/public/android/javatests/src/org/chromium/content/browser/ContentDetectionActivityTestRule.java
diff --git a/content/public/android/javatests/src/org/chromium/content/browser/ContentDetectionActivityTestRule.java b/content/public/android/javatests/src/org/chromium/content/browser/ContentDetectionActivityTestRule.java
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+++ b/content/public/android/javatests/src/org/chromium/content/browser/ContentDetectionActivityTestRule.java
@@ -0,0 +1,96 @@
+// Copyright 2017 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 static org.chromium.base.test.util.ScalableTimeout.scaleTimeout;
+
+import android.net.Uri;
+import android.support.test.InstrumentationRegistry;
+
+import org.chromium.base.test.util.UrlUtils;
+import org.chromium.content.browser.test.util.DOMUtils;
+import org.chromium.content.browser.test.util.TestCallbackHelperContainer;
+import org.chromium.content.browser.test.util.TestCallbackHelperContainer.OnPageFinishedHelper;
+import org.chromium.content.browser.test.util.TestCallbackHelperContainer.OnStartContentIntentHelper;
+import org.chromium.content_shell_apk.ContentShellActivityTestRule;
+
+import java.util.concurrent.TimeUnit;
+
+/**
+ * ActivityTestRule for content detection test suites.
+ */
+public class ContentDetectionActivityTestRule extends ContentShellActivityTestRule {
+    private static final long WAIT_TIMEOUT_SECONDS = scaleTimeout(10);
+
+    private TestCallbackHelperContainer mCallbackHelper;
+
+    /**
+     * Returns the TestCallbackHelperContainer associated with this ContentView,
+     * or creates it lazily.
+     */
+    public TestCallbackHelperContainer getTestCallbackHelperContainer() {
+        if (mCallbackHelper == null) {
+            mCallbackHelper = new TestCallbackHelperContainer(getContentViewCore());
+        }
+        return mCallbackHelper;
+    }
+
+    /**
+     * Encodes the provided content string into an escaped url as intents do.
+     * @param content Content to escape into a url.
+     * @return Escaped url.
+     */
+    public String urlForContent(String content) {
+        return Uri.encode(content).replaceAll("%20", "+");
+    }
+
+    /**
+     * Checks if the provided test url is the current url in the content view.
+     * @param testUrl Test url to check.
+     * @return true if the test url is the current one, false otherwise.
+     */
+    public boolean isCurrentTestUrl(String testUrl) {
+        return UrlUtils.getIsolatedTestFileUrl(testUrl).equals(
+                getContentViewCore().getWebContents().getUrl());
+    }
+
+    /**
+     * Scrolls to the node with the provided id, taps on it and waits for an intent to come.
+     * @param id Id of the node to scroll and tap.
+     * @return The content url of the received intent or null if none.
+     */
+    public String scrollAndTapExpectingIntent(String id) throws Throwable {
+        TestCallbackHelperContainer callbackHelperContainer = getTestCallbackHelperContainer();
+        OnStartContentIntentHelper onStartContentIntentHelper =
+                callbackHelperContainer.getOnStartContentIntentHelper();
+        int currentCallCount = onStartContentIntentHelper.getCallCount();
+
+        DOMUtils.clickNode(getContentViewCore(), id);
+
+        onStartContentIntentHelper.waitForCallback(
+                currentCallCount, 1, WAIT_TIMEOUT_SECONDS, TimeUnit.SECONDS);
+        InstrumentationRegistry.getInstrumentation().waitForIdleSync();
+        return onStartContentIntentHelper.getIntentUrl();
+    }
+
+    /**
+     * Scrolls to the node with the provided id, taps on it and waits for a new page load to finish.
+     * Useful when tapping on links that take to other pages.
+     * @param id Id of the node to scroll and tap.
+     * @return The content url of the received intent or null if none.
+     */
+    public void scrollAndTapNavigatingOut(String id) throws Throwable {
+        TestCallbackHelperContainer callbackHelperContainer = getTestCallbackHelperContainer();
+        OnPageFinishedHelper onPageFinishedHelper =
+                callbackHelperContainer.getOnPageFinishedHelper();
+        int currentCallCount = onPageFinishedHelper.getCallCount();
+
+        DOMUtils.clickNode(getContentViewCore(), id);
+
+        onPageFinishedHelper.waitForCallback(
+                currentCallCount, 1, WAIT_TIMEOUT_SECONDS, TimeUnit.SECONDS);
+        InstrumentationRegistry.getInstrumentation().waitForIdleSync();
+    }
+}