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package org.biojava.utils;
import junit.framework.TestCase;
/**
*
*
* @author Matthew Pocock
*/
public class RepeatedCharSequenceTest
extends TestCase
{
public void testDefaultConstructor()
{
RepeatedCharSequence rcs = new RepeatedCharSequence();
String rcsS = rcs.toString();
assertEquals("Empty String", "", rcsS);
}
public void testCustomConstructor()
{
RepeatedCharSequence rcs = new RepeatedCharSequence(5, 'x');
String rcsS = rcs.toString();
assertEquals("Five x", "xxxxx", rcsS);
}
public void testLengthIncrease()
{
RepeatedCharSequence rcs = new RepeatedCharSequence(4, '?');
String rcsS1 = rcs.toString();
rcs.setLength(8);
String rcsS2 = rcs.toString();
assertEquals("Original length 4", 4, rcsS1.length());
assertEquals("Current length 8", 8, rcsS2.length());
assertEquals("Eight ?", "????????", rcsS2);
}
public void testLengthDecrease()
{
RepeatedCharSequence rcs = new RepeatedCharSequence(8, '*');
String rcsS1 = rcs.toString();
rcs.setLength(4);
String rcsS2 = rcs.toString();
assertEquals("Original length 8", 8, rcsS1.length());
assertEquals("Current length 4", 4, rcsS2.length());
assertEquals("Four *", "****", rcsS2);
}
public void testCharChange()
{
RepeatedCharSequence rcs = new RepeatedCharSequence(4, '$');
String rcsS1 = rcs.toString();
rcs.setCharacter('@');
String rcsS2 = rcs.toString();
System.out.println("JAM");
assertEquals("Length not changed", rcsS1.length(), rcsS2.length());
assertEquals("Now a string of @", "@@@@", rcsS2);
}
public void testSubSequence()
{
RepeatedCharSequence rcs = new RepeatedCharSequence(1000, 'k');
CharSequence rcs2 = rcs.subSequence(100, 110);
CharSequence rcs3 = rcs2.subSequence(3, 3);
assertEquals("10 ks", "kkkkkkkkkk", rcs2.toString());
assertEquals("empty", "", rcs3.toString());
}
}
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