Upstream: Launch WebApkActivity from WebAPK.

chrome/android/javatests/src/org/chromium/chrome/browser/webapps/ActivityAssignerTest.java

 // Copyright 2015 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.chrome.browser.webapps;
 
 import android.test.InstrumentationTestCase;
 import android.test.UiThreadTest;
 import android.test.suitebuilder.annotation.SmallTest;
 
 import org.chromium.base.metrics.RecordHistogram;
 import org.chromium.base.test.util.AdvancedMockContext;
 import org.chromium.base.test.util.Feature;
+import org.chromium.webapk.lib.common.WebApkConstants;
 
 import java.util.HashMap;
 import java.util.HashSet;
 import java.util.List;
 import java.util.Map;
 
 /**
  * Tests for the ActivityAssigner class.
  */
 public class ActivityAssignerTest extends InstrumentationTestCase {
     private static final String BASE_WEBAPP_ID = "BASE_WEBAPP_ID_";
 
     private AdvancedMockContext mContext;
-    private HashMap<String, Object> mPreferences;
+    private HashMap<String, Object>[] mPreferences;
 
     @Override
     protected void setUp() throws Exception {
         super.setUp();
         RecordHistogram.disableForTests();
         mContext = new AdvancedMockContext();
-        mPreferences = new HashMap<String, Object>();
-        mContext.addSharedPreferences(ActivityAssigner.PREF_PACKAGE, mPreferences);
+        mPreferences = new HashMap[ActivityAssigner.ACTIVITY_TYPE_COUNT];
+        for (int i = 0; i < ActivityAssigner.ACTIVITY_TYPE_COUNT; ++i) {
+            mPreferences[i] = new HashMap<String, Object>();
+            mContext.addSharedPreferences(ActivityAssigner.PREF_PACKAGE[i], mPreferences[i]);
+        }
     }
 
     @UiThreadTest
     @SmallTest
     @Feature({"Webapps"})
     public void testEntriesCreated() {
-        ActivityAssigner assigner = ActivityAssigner.instance(mContext);
+        String webappId = BASE_WEBAPP_ID;
+        ActivityAssigner assigner = ActivityAssigner.instance(mContext, webappId);
 
         // Make sure that no webapps have been assigned to any Activities for a fresh install.
+        List<ActivityAssigner.ActivityEntry> entries = assigner.getEntries();

[gone, 2016/05/26 18:20:36]

This ordering change seems unnecessary.

[Xi Han, 2016/05/26 20:54:58]

Done.

         checkState(assigner);
-        List<ActivityAssigner.ActivityEntry> entries = assigner.getEntries();
         assertEquals(ActivityAssigner.NUM_WEBAPP_ACTIVITIES, entries.size());
         for (ActivityAssigner.ActivityEntry entry : entries) {
             assertEquals(null, entry.mWebappId);
         }
     }
 
     /**
      * Make sure invalid entries get culled & that we still have the correct number of unique
      * Activity indices available.
      */
     @UiThreadTest
     @SmallTest
     @Feature({"Webapps"})
     public void testEntriesDownsized() {
         // Store preferences indicating that more Activities existed previously than there are now.
         int numSavedEntries = ActivityAssigner.NUM_WEBAPP_ACTIVITIES + 1;
-        createPreferences(numSavedEntries);
+        String webappId = BASE_WEBAPP_ID;
+        int index = ActivityAssigner.getIndex(webappId);
+        createPreferences(numSavedEntries, index);
 
-        ActivityAssigner assigner = ActivityAssigner.instance(mContext);
+        ActivityAssigner assigner = ActivityAssigner.instance(mContext, webappId);
+        assertEquals(index, assigner.getActivityTypeIndex());
         checkState(assigner);
     }
 
     /**
      * Make sure we recover from corrupted stored preferences.
      */
     @UiThreadTest
     @SmallTest
     @Feature({"Webapps"})
     public void testCorruptedPreferences() {
         String wrongVariableType = "omgwtfbbq";
-        mPreferences.clear();
-        mPreferences.put(ActivityAssigner.PREF_NUM_SAVED_ENTRIES, wrongVariableType);
+        String webappId = BASE_WEBAPP_ID;
+        int index = ActivityAssigner.getIndex(BASE_WEBAPP_ID);
+        mPreferences[index].clear();
+        mPreferences[index].put(ActivityAssigner.PREF_NUM_SAVED_ENTRIES[index], wrongVariableType);
 
-        ActivityAssigner assigner = ActivityAssigner.instance(mContext);
+        ActivityAssigner assigner = ActivityAssigner.instance(mContext, webappId);
+        assertEquals(index, assigner.getActivityTypeIndex());
         checkState(assigner);
     }
 
     @UiThreadTest
     @SmallTest
     @Feature({"Webapps"})
     public void testAssignment() {
-        ActivityAssigner assigner = ActivityAssigner.instance(mContext);
+        String webappId = BASE_WEBAPP_ID;
+        ActivityAssigner assigner = ActivityAssigner.instance(mContext, webappId);
+        int index = assigner.getActivityTypeIndex();
+
         checkState(assigner);
 
         // Assign all of the Activities to webapps.
         // Go backwards to make sure ordering doesn't matter.
         Map<String, Integer> testMap = new HashMap<String, Integer>();
         for (int i = ActivityAssigner.NUM_WEBAPP_ACTIVITIES - 1; i >= 0; --i) {
             String currentWebappId = BASE_WEBAPP_ID + i;
             int activityIndex = assigner.assign(currentWebappId);
             testMap.put(currentWebappId, activityIndex);
         }
         assertEquals(ActivityAssigner.NUM_WEBAPP_ACTIVITIES, testMap.size());
 
         // Make sure that passing in the same webapp ID gives back the same Activity.
         for (int i = 0; i < ActivityAssigner.NUM_WEBAPP_ACTIVITIES; ++i) {
             String currentWebappId = BASE_WEBAPP_ID + i;
             int actualIndex = assigner.assign(currentWebappId);
             int expectedIndex = testMap.get(currentWebappId);
             assertEquals(expectedIndex, actualIndex);
         }
 
         // Access all but the last one to ensure that the last Activity is recycled.
         for (int i = 0; i < ActivityAssigner.NUM_WEBAPP_ACTIVITIES - 1; ++i) {
             String currentWebappId = BASE_WEBAPP_ID + i;
             int activityIndex = testMap.get(currentWebappId);
             assigner.markActivityUsed(activityIndex, currentWebappId);
         }
 
         // Make sure that the least recently used Activity is repurposed when we run out.
         String overflowWebappId = "OVERFLOW_ID";
+        assertEquals(index, ActivityAssigner.getIndex(overflowWebappId));
         int overflowActivityIndex = assigner.assign(overflowWebappId);
 
         String lastAssignedWebappId = BASE_WEBAPP_ID + (ActivityAssigner.NUM_WEBAPP_ACTIVITIES - 1);
         int lastAssignedCurrentActivityIndex = assigner.assign(lastAssignedWebappId);
         int lastAssignedPreviousActivityIndex = testMap.get(lastAssignedWebappId);
 
         assertEquals("Overflow webapp did not steal the Activity from the other webapp",
                 lastAssignedPreviousActivityIndex, overflowActivityIndex);
         assertNotSame("Webapp did not get reassigned to a new Activity.",
                 lastAssignedPreviousActivityIndex, lastAssignedCurrentActivityIndex);
 
         checkState(assigner);
     }
 
+    @UiThreadTest
+    @SmallTest
+    @Feature({"WebApk"})
+    public void testGetIndex() {
+        String webappId = BASE_WEBAPP_ID;
+        assertEquals(ActivityAssigner.WEBAPP_ACTIVITY_INDEX, ActivityAssigner.getIndex(webappId));
+
+        String webApkId = WebApkConstants.WEBAPK_ID_PREFIX + "id";
+        assertEquals(ActivityAssigner.WEBAPK_ACTIVITY_INDEX, ActivityAssigner.getIndex(webApkId));
+    }
+
     /** Saves state indicating that a number of WebappActivities have already been saved out. */
-    private void createPreferences(int numSavedEntries) {
-        mPreferences.clear();
-        mPreferences.put(ActivityAssigner.PREF_NUM_SAVED_ENTRIES, numSavedEntries);
+    private void createPreferences(int numSavedEntries, int activityTypeIndex) {
+        mPreferences[activityTypeIndex].clear();
+        mPreferences[activityTypeIndex].put(
+                ActivityAssigner.PREF_NUM_SAVED_ENTRIES[activityTypeIndex], numSavedEntries);
         for (int i = 0; i < numSavedEntries; ++i) {
-            String activityIndexKey = ActivityAssigner.PREF_ACTIVITY_INDEX + i;
-            mPreferences.put(activityIndexKey, i);
+            String activityIndexKey =
+                    ActivityAssigner.PREF_ACTIVITY_INDEX[activityTypeIndex] + i;
+            mPreferences[activityTypeIndex].put(activityIndexKey, i);
 
-            String webappIdKey = ActivityAssigner.PREF_WEBAPP_ID + i;
+            String webappIdKey = ActivityAssigner.PREF_WEBAPP_ID[activityTypeIndex] + i;
             String webappIdValue = BASE_WEBAPP_ID + i;
-            mPreferences.put(webappIdKey, webappIdValue);
+            mPreferences[activityTypeIndex].put(webappIdKey, webappIdValue);
         }
     }
 
     /** Checks the saved state to make sure it makes sense. */
     private void checkState(ActivityAssigner assigner) {
         List<ActivityAssigner.ActivityEntry> entries = assigner.getEntries();
+        int activityTypeIndex = assigner.getActivityTypeIndex();
 
         // Confirm that the right number of entries in memory and in the preferences.
         assertEquals(ActivityAssigner.NUM_WEBAPP_ACTIVITIES, entries.size());
         assertEquals(ActivityAssigner.NUM_WEBAPP_ACTIVITIES,
-                (int) (Integer) mPreferences.get(ActivityAssigner.PREF_NUM_SAVED_ENTRIES));
+                (int) (Integer) mPreferences[activityTypeIndex].get(
+                        ActivityAssigner.PREF_NUM_SAVED_ENTRIES[activityTypeIndex]));
 
         // Confirm that the Activity indices go from 0 to NUM_WEBAPP_ACTIVITIES - 1.
         HashSet<Integer> assignedActivities = new HashSet<Integer>();
         for (ActivityAssigner.ActivityEntry entry : entries) {
             assignedActivities.add(entry.mActivityIndex);
         }
         for (int i = 0; i < ActivityAssigner.NUM_WEBAPP_ACTIVITIES; ++i) {
             assertTrue(assignedActivities.contains(i));
         }
     }
 }