/*
    *  Copyright 2001-2005 Stephen Colebourne
    *
    *  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 org.joda.time;
  
  import org.joda.time.chrono.ISOChronology;
  
  import junit.framework.TestCase;
  import junit.framework.TestSuite;
  
  /**
   * This class is a Junit unit test for DurationField.
   *
   * @author Stephen Colebourne
   */
  public class TestDurationField extends TestCase {
  
      public static void main(String[] args) {
          junit.textui.TestRunner.run(suite());
      }
  
      public static TestSuite suite() {
          return new TestSuite(TestDurationField.class);
      }
  
      public TestDurationField(String name) {
          super(name);
      }
  
      protected void setUp() throws Exception {
      }
  
      protected void tearDown() throws Exception {
      }
  
      //-----------------------------------------------------------------------
      public void test_subtract() throws Exception {
          DurationField fld = ISOChronology.getInstanceUTC().millis();
          assertEquals(900, fld.subtract(1000L, 100));
          assertEquals(900L, fld.subtract(1000L, 100L));
          assertEquals((1000L - Integer.MAX_VALUE), fld.subtract(1000L, Integer.MAX_VALUE));
          assertEquals((1000L - Integer.MIN_VALUE), fld.subtract(1000L, Integer.MIN_VALUE));
          assertEquals((1000L - Long.MAX_VALUE), fld.subtract(1000L, Long.MAX_VALUE));
          try {
              fld.subtract(-1000L, Long.MIN_VALUE);
              fail();
          } catch (ArithmeticException ex) {}
      }
  
  }