Fix unit tests

Author: grantland

Parse/src/test/java/com/parse/ParseAuthenticationManagerTest.java

@@ -57,6 +57,7 @@ public void testRegisterMultipleShouldThrow() {
   @Test
   public void testRegisterAnonymous() {
     ParseAuthenticationProvider anonymous = mock(AnonymousAuthenticationProvider.class);
+    when(anonymous.getAuthType()).thenReturn("anonymous");
 
     manager.register(anonymous);
     verifyNoMoreInteractions(controller);