    1   /*
    2    $Id: RangeTest.java,v 1.9 2005/07/25 08:09:00 phk Exp $
    3
    4    Copyright 2003 (C) James Strachan and Bob Mcwhirter. All Rights Reserved.
    5
    6    Redistribution and use of this software and associated documentation
    7    ("Software"), with or without modification, are permitted provided
    8    that the following conditions are met:
    9
    10   1. Redistributions of source code must retain copyright
    11      statements and notices.  Redistributions must also contain a
    12      copy of this document.
    13
    14   2. Redistributions in binary form must reproduce the
    15      above copyright notice, this list of conditions and the
    16      following disclaimer in the documentation and/or other
    17      materials provided with the distribution.
    18
    19   3. The name "groovy" must not be used to endorse or promote
    20      products derived from this Software without prior written
    21      permission of The Codehaus.  For written permission,
    22      please contact info@codehaus.org.
    23
    24   4. Products derived from this Software may not be called "groovy"
    25      nor may "groovy" appear in their names without prior written
    26      permission of The Codehaus. "groovy" is a registered
    27      trademark of The Codehaus.
    28
    29   5. Due credit should be given to The Codehaus -
    30      http://groovy.codehaus.org/
    31
    32   THIS SOFTWARE IS PROVIDED BY THE CODEHAUS AND CONTRIBUTORS
    33   ``AS IS'' AND ANY EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT
    34   NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
    35   FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL
    36   THE CODEHAUS OR ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
    37   INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
    38   (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
    39   SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
    40   HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
    41   STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
    42   ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
    43   OF THE POSSIBILITY OF SUCH DAMAGE.
    44
    45   */
    46  package groovy.lang;
    47
    48  import java.util.List;
    49  import java.util.Iterator;
    50  import java.math.BigDecimal;
    51
    52  import junit.framework.TestCase;
    53
    54  /***
    55   * @author James Strachan
    56   * @version $Revision: 1.9 $
    57   */
    58  public class RangeTest extends TestCase {
    59
    60      public void testSize() {
    61          Range r = createRange(0, 10);
    62          assertEquals("Size of " + r, 11, r.size());
    63          r = createRange(0, 1);
    64          assertEquals("Size of " + r, 2, r.size());
    65          r = createRange(0, 0);
    66          assertEquals("Size of " + r, 1, r.size());
    67
    68          r = createRange(new BigDecimal("2.1"), new BigDecimal("10.0"));
    69          assertEquals("Size of " + r, 8, r.size());
    70      }
    71
    72      public void testProperties() {
    73          Range r = createRange(0, 10);
    74          assertEquals("from", 0, r.getFrom());
    75          assertEquals("to", 10, r.getTo());
    76      }
    77
    78      public void testGet() {
    79          Range r = createRange(10, 20);
    80          for (int i = 0; i < 10; i++) {
    81              Integer value = (Integer) r.get(i);
    82              assertEquals("Item at index: " + i, i + 10, value.intValue());
    83          }
    84
    85          r = createRange(new BigDecimal("3.2"), new BigDecimal("9.9"));
    86          for (int i = 0; i < r.size(); i++) {
    87              BigDecimal value = (BigDecimal) r.get(i);
    88              assertEquals("Item at index: " + i, new BigDecimal("3.2").add(new BigDecimal("" + i)), value);
    89          }
    90      }
    91
    92      public void testGetOutOfRange() {
    93          Range r = createRange(10, 20);
    94
    95          try {
    96              r.get(-1);
    97              fail("Should have thrown IndexOut");
    98          }
    99          catch (IndexOutOfBoundsException e) {
    100             // worked
    101         }
    102         try {
    103             r.get(11);
    104             fail("Should have thrown IndexOut");
    105         }
    106         catch (IndexOutOfBoundsException e) {
    107             // worked
    108         }
    109
    110         r = createRange(new BigDecimal("-4.3"), new BigDecimal("1.4"));
    111
    112         try {
    113             r.get(-1);
    114             fail("Should have thrown IndexOut");
    115         }
    116         catch (IndexOutOfBoundsException e) {
    117             // worked
    118         }
    119         try {
    120             r.get(7);
    121             fail("Should have thrown IndexOut");
    122         }
    123         catch (IndexOutOfBoundsException e) {
    124             // worked
    125         }
    126
    127     }
    128
    129     public void testContains() {
    130         Range r = createRange(10, 20);
    131
    132         assertTrue("contains 11", r.contains(new Integer(11)));
    133         assertTrue("contains 10", r.contains(new Integer(10)));
    134         assertTrue("contains 19", r.contains(new Integer(19)));
    135         assertFalse("contains 9", r.contains(new Integer(9)));
    136         assertFalse("contains 21", r.contains(new Integer(21)));
    137         assertFalse("contains 100", r.contains(new Integer(100)));
    138         assertFalse("contains -1", r.contains(new Integer(-1)));
    139
    140         r = createRange(new BigDecimal("2.1"), new BigDecimal("10.0"));
    141
    142         assertTrue("contains 9.1", r.contains(new BigDecimal("9.1")));
    143         assertFalse("contains 8.0", r.contains(new BigDecimal("8.0")));
    144     }
    145
    146     public void testSubList() {
    147         Range r = createRange(10, 20);
    148
    149         List s = r.subList(2, 4);
    150
    151         Range sr = (Range) s;
    152
    153         assertEquals("from", 12, sr.getFrom());
    154         assertEquals("to", 13, sr.getTo());
    155         assertEquals("size", 2, sr.size());
    156
    157         r = createRange(new BigDecimal("0.5"), new BigDecimal("8.5"));
    158         assertEquals("size", 9, r.size());
    159         s = r.subList(2, 5);
    160         sr = (Range) s;
    161
    162         assertEquals("from", new BigDecimal("2.5"), sr.getFrom());
    163         assertEquals("to", new BigDecimal("4.5"), sr.getTo());
    164         assertTrue("contains 4.5", sr.contains(new BigDecimal("4.5")));
    165         assertFalse("contains 5.5", sr.contains(new BigDecimal("5.5")));
    166         assertEquals("size", 3, sr.size());
    167
    168     }
    169
    170     public void testHashCodeAndEquals() {
    171         Range a = createRange(1, 11);
    172         Range b = createRange(1, 11);
    173         Range c = createRange(2, 11);
    174
    175         assertEquals("hashcode", a.hashCode(), b.hashCode());
    176         assertTrue("hashcode", a.hashCode() != c.hashCode());
    177
    178         assertEquals("a and b", a, b);
    179         assertFalse("a != c", a.equals(c));
    180     }
    181
    182     public void testIterator() {
    183         Range r = createRange(5, 11);
    184
    185         int i = 5;
    186         for (Iterator it = r.iterator(); it.hasNext(); ) {
    187             assertEquals("equals to " + i, new Integer(i), (Integer) (it.next()));
    188             i++;
    189         }
    190
    191         r = createRange(new BigDecimal("5.0"), new BigDecimal("11.0"));
    192         BigDecimal one = new BigDecimal("1.0");
    193
    194         BigDecimal val = new BigDecimal("5.0");
    195         for (Iterator it = r.iterator(); it.hasNext(); ) {
    196             assertEquals("equals to " + val, val, (BigDecimal) (it.next()));
    197             val = val.add(one);
    198         }
    199     }
    200
    201     protected Range createRange(int from, int to) {
    202         return new ObjectRange(new Integer(from), new Integer(to));
    203     }
    204
    205     protected Range createRange(BigDecimal from, BigDecimal to) {
    206         return new ObjectRange(from, to);
    207     }
    208
    209     protected void assertEquals(String msg, int expected, Object value) {
    210         assertEquals(msg, new Integer(expected), value);
    211     }
    212
    213
    214 }