[Android backup] Restore nothing if signed in user isn't valid

chrome/android/junit/src/org/chromium/chrome/browser/ChromeBackupAgentTest.java

Index: chrome/android/junit/src/org/chromium/chrome/browser/ChromeBackupAgentTest.java
diff --git a/chrome/android/junit/src/org/chromium/chrome/browser/ChromeBackupAgentTest.java b/chrome/android/junit/src/org/chromium/chrome/browser/ChromeBackupAgentTest.java
index 62853b63670ed4184200d8536f827d5e3cead0cb..4d7d9305255e9da41136be958c3672a4fc154a65 100644
--- a/chrome/android/junit/src/org/chromium/chrome/browser/ChromeBackupAgentTest.java
+++ b/chrome/android/junit/src/org/chromium/chrome/browser/ChromeBackupAgentTest.java
@@ -8,6 +8,9 @@ import static org.hamcrest.CoreMatchers.equalTo;
 import static org.hamcrest.CoreMatchers.nullValue;
 import static org.junit.Assert.assertThat;
 
+import android.accounts.Account;
+import android.accounts.AccountManager;
+import android.content.Context;
 import android.content.SharedPreferences;
 
 import org.chromium.base.ContextUtils;
@@ -36,6 +39,10 @@ public class ChromeBackupAgentTest {
     @Before
     public void setUp() throws Exception {
         ContextUtils.initApplicationContextForTests(Robolectric.application);
+        AccountManager manager =
+                (AccountManager) Robolectric.application.getSystemService(Context.ACCOUNT_SERVICE);
+        manager.addAccountExplicitly(new Account("user1", "dummy"), null, null);
+        manager.addAccountExplicitly(new Account("user2", "dummy"), null, null);
     }
 
     @Test
@@ -58,4 +65,38 @@ public class ChromeBackupAgentTest {
         assertThat(sharedPrefs.getString("first_run_signin_account_name", null), equalTo("user1"));
     }
 
+    @Test
+    public void testOnRestoreFinishedNoUser() {
+        SharedPreferences sharedPrefs = ContextUtils.getAppSharedPreferences();
+        SharedPreferences.Editor editor = sharedPrefs.edit();
+        editor.putBoolean("crash_dump_upload", false);
+        editor.putString("junk", "junk");
+        editor.commit();
+
+        new ChromeTestBackupAgent().onRestoreFinished();
+
+        // Check that we haven't restored any preferences
+        assertThat(sharedPrefs.getBoolean("crash_dump_upload", true), equalTo(true));
+        assertThat(sharedPrefs.getString("google.services.username", null), nullValue());
+        assertThat(sharedPrefs.getString("junk", null), nullValue());
+        assertThat(sharedPrefs.getString("first_run_signin_account_name", null), nullValue());
+    }
+
+    @Test
+    public void testOnRestoreFinishedWrongUser() {
+        SharedPreferences sharedPrefs = ContextUtils.getAppSharedPreferences();
+        SharedPreferences.Editor editor = sharedPrefs.edit();
+        editor.putBoolean("crash_dump_upload", false);
+        editor.putString("google.services.username", "wrong_user");
+        editor.putString("junk", "junk");
+        editor.commit();
+
+        new ChromeTestBackupAgent().onRestoreFinished();
+
+        // Check that we haven't restored any preferences
+        assertThat(sharedPrefs.getBoolean("crash_dump_upload", true), equalTo(true));
+        assertThat(sharedPrefs.getString("google.services.username", null), nullValue());
+        assertThat(sharedPrefs.getString("junk", null), nullValue());
+        assertThat(sharedPrefs.getString("first_run_signin_account_name", null), nullValue());
+    }
 }