Add a UrlManagerTest

chrome/android/java/src/org/chromium/chrome/browser/physicalweb/UrlManager.java

Index: chrome/android/java/src/org/chromium/chrome/browser/physicalweb/UrlManager.java
diff --git a/chrome/android/java/src/org/chromium/chrome/browser/physicalweb/UrlManager.java b/chrome/android/java/src/org/chromium/chrome/browser/physicalweb/UrlManager.java
index 45924a7f66a3fb2697139fb5dd3efa85d86f0691..683234c934e1410ad3ce1c9610d06ded597c8343 100644
--- a/chrome/android/java/src/org/chromium/chrome/browser/physicalweb/UrlManager.java
+++ b/chrome/android/java/src/org/chromium/chrome/browser/physicalweb/UrlManager.java
@@ -5,6 +5,7 @@
 package org.chromium.chrome.browser.physicalweb;
 
 import android.app.Notification;
+import android.app.NotificationManager;
 import android.app.PendingIntent;
 import android.content.Context;
 import android.content.Intent;
@@ -14,11 +15,13 @@ import android.graphics.Bitmap;
 import android.graphics.BitmapFactory;
 import android.os.SystemClock;
 import android.support.v4.app.NotificationCompat;
-import android.support.v4.app.NotificationManagerCompat;
 
 import org.chromium.base.Log;
+import org.chromium.base.VisibleForTesting;
 import org.chromium.chrome.R;
 import org.chromium.chrome.browser.notifications.NotificationConstants;
+import org.chromium.chrome.browser.notifications.NotificationManagerProxy;
+import org.chromium.chrome.browser.notifications.NotificationManagerProxyImpl;
 
 import java.util.Arrays;
 import java.util.Collection;
@@ -48,8 +51,8 @@ class UrlManager {
     private static final int PREFS_VERSION = 2;
     private static UrlManager sInstance = null;
     private final Context mContext;
-    private final NotificationManagerCompat mNotificationManager;
-    private final PwsClient mPwsClient;
+    private NotificationManagerProxy mNotificationManager;
+    private PwsClient mPwsClient;
 
     /**
      * Construct the UrlManager.
@@ -57,8 +60,9 @@ class UrlManager {
      */
     public UrlManager(Context context) {
         mContext = context;
-        mNotificationManager = NotificationManagerCompat.from(context);
-        mPwsClient = new PwsClient();
+        mNotificationManager = new NotificationManagerProxyImpl(
+                (NotificationManager) context.getSystemService(Context.NOTIFICATION_SERVICE));
+        mPwsClient = new PwsClientImpl();
         initSharedPreferences();
     }
 
@@ -79,6 +83,7 @@ class UrlManager {
      * This method additionally updates the Physical Web notification.
      * @param url The URL to add.
      */
+    @VisibleForTesting
     public void addUrl(String url) {
         Log.d(TAG, "URL found: " + url);
         boolean isOnboarding = PhysicalWeb.isOnboarding(mContext);
@@ -342,4 +347,15 @@ class UrlManager {
     private void clearNotification() {
         mNotificationManager.cancel(NotificationConstants.NOTIFICATION_ID_PHYSICAL_WEB);
     }
+
+    @VisibleForTesting
+    void overridePwsClientForTesting(PwsClient pwsClient) {
+        mPwsClient = pwsClient;
+    }
+
+    @VisibleForTesting
+    void overrideNotificationManagerForTesting(
+            NotificationManagerProxy notificationManager) {
+        mNotificationManager = notificationManager;
+    }
 }