Fix NPE in enterprise API & fix unit tests.

Bug 21632829
Bug 21634841

Change-Id: Ic18f44e8de31fe48b1d3b7f3a49c355a4865aeca
diff --git a/src/com/android/providers/contacts/ContactsProvider2.java b/src/com/android/providers/contacts/ContactsProvider2.java
index 6cf6d98..7e91192 100644
--- a/src/com/android/providers/contacts/ContactsProvider2.java
+++ b/src/com/android/providers/contacts/ContactsProvider2.java
@@ -6771,6 +6771,10 @@
             final Uri remoteUri = maybeAddUserId(localUri, corpUserId);
             final Cursor managedCursor = getContext().getContentResolver().query(remoteUri,
                     projection, selection, selectionArgs, sortOrder, null);
+            if (managedCursor == null) {
+                // No corp results.  Just return the local result.
+                return primaryCursor;
+            }
             final Cursor[] cursorArray = new Cursor[] {
                     primaryCursor, new EnterprisePhoneCursorWrapper(managedCursor)
             };
@@ -6814,10 +6818,7 @@
             local.close();
             throw th;
         }
-
-        if (local != null) {
-            local.close();
-        }
+        // "local" is still open.  If we fail the managed CP2 query, we'll still return it.
 
         // Step 2.  No rows found in the local db, and there is a corp profile. Look at the corp
         // DB.
@@ -6831,7 +6832,11 @@
         // Note in order to re-write the cursor correctly, we need all columns from the corp cp2.
         final Cursor corp = getContext().getContentResolver().query(remoteUri, null,
                 selection, selectionArgs, sortOrder, /* cancellationsignal */null);
+        if (corp == null) {
+            return local;
+        }
         try {
+            local.close();
             if (VERBOSE_LOGGING) {
                 MoreDatabaseUtils.dumpCursor(TAG, "corp raw", corp);
             }
diff --git a/tests/src/com/android/providers/contacts/ContactsProvider2Test.java b/tests/src/com/android/providers/contacts/ContactsProvider2Test.java
index 73d0083..d75996c 100644
--- a/tests/src/com/android/providers/contacts/ContactsProvider2Test.java
+++ b/tests/src/com/android/providers/contacts/ContactsProvider2Test.java
@@ -97,6 +97,7 @@
 import com.android.providers.contacts.testutil.RawContactUtil;
 import com.android.providers.contacts.testutil.TestUtil;
 import com.android.providers.contacts.tests.R;
+import com.android.providers.contacts.util.NullContentProvider;
 
 import com.google.android.collect.Lists;
 import com.google.android.collect.Sets;
@@ -1784,6 +1785,35 @@
     }
 
     /**
+     * Test for enterprise caller-id.  Corp profile exists, but it returns a null cursor.
+     */
+    public void testPhoneLookupEnterprise_withCorpProfile_nullResult() throws Exception {
+        setUpNullCorpProvider();
+
+        Uri uri1 = Uri.withAppendedPath(PhoneLookup.ENTERPRISE_CONTENT_FILTER_URI, "408-111-1111");
+
+        // No contacts profile, no data.
+        assertEquals(0, getCount(uri1));
+
+        // Insert a contact into the primary CP2.
+        long rawContactId = ContentUris.parseId(
+                mResolver.insert(RawContacts.CONTENT_URI, new ContentValues()));
+        DataUtil.insertStructuredName(mResolver, rawContactId, "Contact1", "Doe");
+        insertPhoneNumber(rawContactId, "408-111-1111");
+
+        // Do the query again and check the result.
+        Cursor c = mResolver.query(uri1, null, null, null, null);
+        try {
+            assertEquals(1, c.getCount());
+            c.moveToPosition(0);
+            long contactId = c.getLong(c.getColumnIndex(PhoneLookup._ID));
+            assertFalse(Contacts.isEnterpriseContactId(contactId)); // Make sure it's not rewritten.
+        } finally {
+            c.close();
+        }
+    }
+
+    /**
      * Set up the corp user / CP2 and returns the corp CP2 instance.
      *
      * Create a second instance of CP2, and add it to the resolver, with the "user-id@" authority.
@@ -1802,12 +1832,27 @@
     }
 
     /**
+     * Similar to {@link setUpCorpProvider}, but the corp CP2 set up with this will always return
+     * null from query().
+     */
+    private void setUpNullCorpProvider() throws Exception {
+        mActor.mockUserManager.setUsers(MockUserManager.PRIMARY_USER, MockUserManager.CORP_USER);
+
+        mActor.addProvider(
+                NullContentProvider.class,
+                "" + MockUserManager.CORP_USER.id + "@com.android.contacts",
+                new AlteringUserContext(mActor.getProviderContext(), MockUserManager.CORP_USER.id));
+    }
+
+    /**
      * Test for query of merged primary and work contacts.
      * <p/>
      * Note: in this test, we add one more provider instance for the authority
      * "10@com.android.contacts" and use it as the corp cp2.
      */
     public void testQueryMergedDataPhones() throws Exception {
+        mActor.addPermissions("android.permission.INTERACT_ACROSS_USERS");
+
         // Insert a contact to the primary CP2.
         long rawContactId = ContentUris.parseId(
                 mResolver.insert(RawContacts.CONTENT_URI, new ContentValues()));
@@ -1880,6 +1925,43 @@
     }
 
     /**
+     * Test for query of merged primary and work contacts.
+     * <p/>
+     * Note: in this test, we add one more provider instance for the authority
+     * "10@com.android.contacts" and use it as the corp cp2.
+     */
+    public void testQueryMergedDataPhones_nullCorp() throws Exception {
+        mActor.addPermissions("android.permission.INTERACT_ACROSS_USERS");
+
+        // Insert a contact to the primary CP2.
+        long rawContactId = ContentUris.parseId(
+                mResolver.insert(RawContacts.CONTENT_URI, new ContentValues()));
+        DataUtil.insertStructuredName(mResolver, rawContactId, "Contact1", "Primary");
+
+        insertPhoneNumber(rawContactId, "111-111-1111", false, false, Phone.TYPE_MOBILE);
+
+        // Insert a contact to the corp CP2, with different name and phone number.
+        setUpNullCorpProvider();
+
+        // Execute the query to get the merged result.
+        Cursor c = mResolver.query(Phone.ENTERPRISE_CONTENT_URI, new String[]{Phone.CONTACT_ID,
+                        Phone.DISPLAY_NAME, Phone.NUMBER}, Phone.TYPE + " = ?",
+                new String[]{String.valueOf(Phone.TYPE_MOBILE)}, null);
+        try {
+            // Verify the primary contact.
+            assertEquals(1, c.getCount());
+            assertEquals(3, c.getColumnCount());
+            c.moveToPosition(0);
+            assertEquals("Contact1 Primary", c.getString(c.getColumnIndex(Phone.DISPLAY_NAME)));
+            assertEquals("111-111-1111", c.getString(c.getColumnIndex(Phone.NUMBER)));
+            long contactId = c.getLong(c.getColumnIndex(Phone.CONTACT_ID));
+            assertFalse(Contacts.isEnterpriseContactId(contactId));
+        } finally {
+            c.close();
+        }
+    }
+
+    /**
      * Test for enterprise caller-id, with the corp profile.
      *
      * Note: in this test, we add one more provider instance for the authority
@@ -1976,6 +2058,8 @@
     }
 
     public void testQueryRawContactEntitiesCorp_noCorpProfile() {
+        mActor.addPermissions("android.permission.INTERACT_ACROSS_USERS");
+
         // Insert a contact into the primary CP2.
         long rawContactId = ContentUris.parseId(
                 mResolver.insert(RawContacts.CONTENT_URI, new ContentValues()));
@@ -1987,6 +2071,8 @@
     }
 
     public void testQueryRawContactEntitiesCorp_withCorpProfile() throws Exception {
+        mActor.addPermissions("android.permission.INTERACT_ACROSS_USERS");
+
         // Insert a contact into the primary CP2.
         long rawContactId = ContentUris.parseId(
                 mResolver.insert(RawContacts.CONTENT_URI, new ContentValues()));
diff --git a/tests/src/com/android/providers/contacts/util/NullContentProvider.java b/tests/src/com/android/providers/contacts/util/NullContentProvider.java
new file mode 100644
index 0000000..1f39b18
--- /dev/null
+++ b/tests/src/com/android/providers/contacts/util/NullContentProvider.java
@@ -0,0 +1,55 @@
+/*
+ * Copyright (C) 2015 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package com.android.providers.contacts.util;
+
+import android.content.ContentProvider;
+import android.content.ContentValues;
+import android.database.Cursor;
+import android.net.Uri;
+
+public class NullContentProvider extends ContentProvider {
+
+    @Override
+    public boolean onCreate() {
+        return true;
+    }
+
+    @Override
+    public Cursor query(Uri uri, String[] projection, String selection, String[] selectionArgs,
+            String sortOrder) {
+        return null;
+    }
+
+    @Override
+    public String getType(Uri uri) {
+        return null;
+    }
+
+    @Override
+    public Uri insert(Uri uri, ContentValues values) {
+        return null;
+    }
+
+    @Override
+    public int delete(Uri uri, String selection, String[] selectionArgs) {
+        return 0;
+    }
+
+    @Override
+    public int update(Uri uri, ContentValues values, String selection, String[] selectionArgs) {
+        return 0;
+    }
+}