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Beefed up unit test.

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git-svn-id: https://samskivert.googlecode.com/svn/trunk@748 6335cc39-0255-0410-8fd6-9bcaacd3b74c
This commit is contained in:
mdb
2002-05-16 22:15:19 +00:00
parent 0f91263c38
commit d88837ba3e
1 changed files with 35 additions and 8 deletions
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projects/samskivert/tests/src/java/com/samskivert/util/ArrayIntSetTest.java
+35 -8
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@@ -1,5 +1,5 @@
//
// $Id: ArrayIntSetTest.java,v 1.3 2002/05/16 20:50:31 mdb Exp $
// $Id: ArrayIntSetTest.java,v 1.4 2002/05/16 22:15:19 mdb Exp $
//
// samskivert library - useful routines for java programs
// Copyright (C) 2001 Michael Bayne
@@ -21,6 +21,7 @@
package com.samskivert.util;
import java.util.Arrays;
import java.util.Random;
import junit.framework.Test;
import junit.framework.TestCase;
@@ -37,13 +38,7 @@ public class ArrayIntSetTest extends TestCase
public void runTest ()
{
ArrayIntSet set = new ArrayIntSet();
set.add(3);
set.add(5);
set.add(5);
set.add(9);
set.add(5);
set.add(7);
set.add(1);
set.add(new int[] { 3, 5, 5, 9, 5, 7, 1 });
int[] values = { 1, 3, 5, 7, 9 };
int[] setvals = set.toIntArray();
@@ -68,10 +63,42 @@ public class ArrayIntSetTest extends TestCase
// make sure that retainAll returns false if we do something that
// doesn't modify the set
assertTrue("retain didn't modify", !set1.retainAll(set3));
Random rando = new Random();
for (int i = 0; i < 1000; i++) {
ArrayIntSet s1 = new ArrayIntSet();
ArrayIntSet s2 = new ArrayIntSet();
ArrayIntSet s3 = new ArrayIntSet();
// add some odd numbers to all three sets
for (int c = 0; c < 100; c++) {
int r = rando.nextInt(5000) * 2 + 1;
s1.add(r);
s2.add(r);
s3.add(r);
}
// now add some even numbers to each of the first two sets in
// non-overlapping ranges
for (int c = 0; c < 100; c++) {
s1.add(rando.nextInt(5000)*2);
s2.add(rando.nextInt(5000)*2 + 15000);
}
// now ensure that s1.retainAll(s2) equals s3
s1.retainAll(s2);
assertTrue("random intersection", s1.equals(s3));
}
}
public static Test suite ()
{
return new ArrayIntSetTest();
}
public static void main (String[] args)
{
ArrayIntSetTest test = new ArrayIntSetTest();
test.runTest();
}
}