--- old/test/java/time/test/java/time/temporal/TestIsoWeekFields.java	2015-11-08 21:18:32.188449000 +0300
+++ new/test/java/time/test/java/time/temporal/TestIsoWeekFields.java	2015-11-08 21:18:32.015449000 +0300
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2014, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 2014,2015, Oracle and/or its affiliates. All rights reserved.
  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
  *
  * This code is free software; you can redistribute it and/or modify it
@@ -120,6 +120,14 @@
     public void test_WBY_isSupportedBy_ISO() {
         assertEquals(IsoFields.WEEK_BASED_YEAR.isSupportedBy(ThaiBuddhistDate.now()), false);
     }
+    
+    @Test
+    public void test_Unit_isSupportedBy_ISO() {
+        assertEquals(IsoFields.WEEK_BASED_YEARS.isSupportedBy(LocalDate.now()),true);  
+        assertEquals(IsoFields.WEEK_BASED_YEARS.isSupportedBy(ThaiBuddhistDate.now()),false);  
+        assertEquals(IsoFields.QUARTER_YEARS.isSupportedBy(LocalDate.now()),true);  
+        assertEquals(IsoFields.QUARTER_YEARS.isSupportedBy(ThaiBuddhistDate.now()),false);  
+    }
 
     @Test(dataProvider = "fields")
     public void test_WBY_range(TemporalField weekField, TemporalField yearField) {