Test Twenty Threads Running

This is part of JavaUnitTestChallengeSolved. -- DonWells

---

I use two arrays to hold my threads, 10 each.

 public class TwentyThreadsTogether extends Test {
    public BoundedBuffer buffer;
    public PutThread putThreads [];
    public TakeThread takeThreads [];

    public void setUp(){
        buffer = new BoundedBuffer();
        putThreads = new PutThread [10];
        takeThreads = new TakeThread [10];
        for (int each = 0; each < 10; each++) {
            putThreads[each] = new PutThread(buffer);
            takeThreads[each] = new TakeThread(buffer);}}

    public void tearDown(){
        for (int each = 0; each < 10; each++) {
            putThreads[each].stop();
            takeThreads[each].stop();}}

    public void runTest (){
        TakeThread.resetOutput();
        for (int each = 0; each < 10; each++) {
            takeThreads[each].start();};
        for (int each = 0; each < 10; each++) {
            putThreads[each].start();};
        waitForTakeToFinish();
        should(TakeThread.outputLength() == 50, "output was too short");
        should(TakeThread.doesOuputHaveTenOf("a"), "should get ten a");
        should(TakeThread.doesOuputHaveTenOf("b"), "should get ten b");
        should(TakeThread.doesOuputHaveTenOf("c"), "should get ten c");
        should(TakeThread.doesOuputHaveTenOf("d"), "should get ten d");
        should(TakeThread.doesOuputHaveTenOf("e"), "should get ten e");}

    public void waitForTakeToFinish(){
        try {
            for (int each = 0; each < 10; each++) {
                takeThreads[each].join(4000);}}
        catch (InterruptedException exception) {};}
 }

I also modified the TakeThread so that it can hold 50 strings of output and added the doesOuputHaveTenOf method, which is almost identical to the two version. I refactored out the part which counts how many of a string there are into a separate method.

    public static boolean doesOuputHaveTwoOf (String aValue){
        return howManyOf(aValue) == 2;}

    public static boolean doesOuputHaveTenOf (String aValue){
        return howManyOf(aValue) == 10;}

    public static int howManyOf (String aValue){
        int howMany = 0;
        for (int each = 0; each < outputLength; each++){
            if (output[each] == aValue) howMany++;}
        return howMany;}

    public static String outputString (){
        String outputAsString = "";
        for (int each = 0; each < outputLength; each++){
            outputAsString += output[each];};
        return outputAsString;}

    public static int outputLength(){
        return outputString().length();}

Now I can try it. This test runs just fine too.