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import java.util.Random;
public class RecursionLLTester
{
public static void main(String[] args)
{
RecursionLinkedList rll = new RecursionLinkedList();
int point = 0;
boolean isError = false;
System.out.println("Create an empty RecursionLinkedList named rll.");
System.out.print("Test the method contains() on an empty RecursionLinkedList: ");
if(rll.contains(5) != false)
{
System.out.println("FAIL");
System.out.println("Nothing is added into RecursionLinkedList rll.");
System.out.println("rll.contains(5) should return 0.");
System.out.println("But your rll.contains(5) returns " + rll.contains(5) + ".");
}
else
{
System.out.println("PASS");
point++;
}
System.out.print("Test the method getFrequencyOf() on an empty RecursionLinkedList: ");
if(rll.getFrequencyOf(5) != 0)
{
System.out.println("FAIL");
System.out.println("Nothing is added into RecursionLinkedList rll.");
System.out.println("rll.getFrequencyOf(5) should return 0.");
System.out.println("But your rll.getFrequencyOf(5) returns " + rll.getFrequencyOf(5) + ".");
}
else
{
System.out.println("PASS");
point++;
}
Random rand = new Random();
int num = 20;
int[] array = new int[5];
for(int i = 0; i < 5; i++)
{
array[i] = 0;
}
System.out.println("Add the following integer into rll:");
String s = "]";
for(int i = 0; i < num - 1; i++)
{
int temp = rand.nextInt(5);
System.out.print(temp + " ");
s = "," + temp + s;
array[temp]++;
rll.add(temp);
}
int temp = rand.nextInt(5);
System.out.println(temp);
s = "[" + temp + s;
array[temp]++;
rll.add(temp);
System.out.println("\nTest the method contains() on a non-empty RecursionLinkedList");
System.out.print(" - Test rll.contains(-1): ");
if(rll.contains(-1) != false)
{
System.out.println("FAIL");
System.out.println("No -1 has been added into the RecursionLinkedList rll.");
System.out.println("rll.contains(-1) should return 0.");
System.out.println("But your rll.contains(-1) returns " + rll.contains(-1));
}
else
{
System.out.println("PASS");
point++;
}
for(int i = 0; i < 5; i++)
{
System.out.print(" - Test rll.contains(" + i + "): ");
if(rll.contains(i) != (array[i] != 0))
{
System.out.println("FAIL");
System.out.println("There are " + array[i] + " in RecursiveLinkedList rll.");
System.out.println("rll.contains(" + i + ") should return " + (array[i] != 0));
System.out.println("But your rll.contains(" + i + ") returns " + rll.contains(i));
isError = true;
}
else
{
System.out.println("PASS");
}
}
if(!isError)
{
point++;
isError = false;
}
System.out.print(" - Test rll.contains(5): ");
if(rll.contains(5) != false)
{
System.out.println("FAIL");
System.out.println("No 5 has been added into the RecursionLinkedList rll.");
System.out.println("rll.contains(5) should return 0.");
System.out.println("But your rll.contains(5) returns " + rll.contains(5));
}
else
{
System.out.println("PASS");
point++;
}
System.out.println("Test the method getFrequencyOf() on a non-empty RecursionLinkedList");
System.out.print(" - Test rll.getFrequencyOf(-1): ");
if(rll.getFrequencyOf(-1) != 0)
{
System.out.println("FAIL");
System.out.println("No -1 has been added into the RecursionLinkedList rll.");
System.out.println("rll.getFrequencyOf(-1) should return 0.");
System.out.println("But your rll.getFrequencyOf(-1) returns " + rll.getFrequencyOf(-1));
}
else
{
System.out.println("PASS");
point++;
}
for(int i = 0; i < 5; i++)
{
System.out.print(" - Test rll.getFrequencyOf(" + i + "): ");
if(rll.getFrequencyOf(i) != array[i])
{
System.out.println("FAIL");
System.out.println(i + " has been added to the RecursionLinkedList " + array[i] + " times.");
System.out.println("rll.getFrequencyOf(" + i + ") should return " + array[i] + ".");
System.out.println("But your rll.getFrequencyOf(" + i + ") returns " + rll.getFrequencyOf(i));
isError = true;
}
else
{
System.out.println("PASS");
}
}
if(!isError)
{
point++;
isError = false;
}
System.out.print(" - Test rll.getFrequencyOf(5): ");
if(rll.getFrequencyOf(5) != 0)
{
System.out.println("FAIL");
System.out.println("No 5 has been added into the RecursionLinkedList rll.");
System.out.println("rll.getFrequencyOf(5) should return 0.");
System.out.println("But your rll.getFrequencyOf(5) returns " + rll.getFrequencyOf(5));
}
else
{
System.out.println("PASS");
point++;
}
System.out.print("Test the method toString(): ");
if(!s.equals(rll.toString()))
{
System.out.println("FAIL");
System.out.println("rll.toString() should return the string \"" + s + "\".");
System.out.println("But your rll.toString() returns the string \"" + rll.toString() + "\".");
}
else
{
System.out.println("PASS");
point++;
}
System.out.println("Test the method getIndexOf()");
System.out.println("Currently the rll is " + rll + ".");
String[] str = rll.toString().split(",");
str[0] = str[0].substring(1);
str[str.length - 1] = str[str.length - 1].substring(0, 1);
for(int i = -1; i <= 5; i++)
{
System.out.print("Test the method getIndexOf(" + i + "): ");
if(getIndex(str,i) != rll.getIndexOf(i))
{
System.out.println("FAIL");
System.out.println("The index of " + i + " should be " + getIndex(str,i) + ".");
System.out.println("But your rll.getIndexOf(" + i + ") returns " + rll.getIndexOf(i) + ".");
isError = true;
}
else
{
System.out.println("PASS");
}
}
if(!isError)
{
point++;
isError = false;
}
System.out.println("Your current point is " + point + ".");
}
public static int getIndex(String[] str, int s)
{
int result = -1;
for(int i = 0; i < str.length; i++)
{
if(s == Integer.parseInt(str[i]))
{
return i;
}
}
return result;
}
}
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