// import becker.robots.*;
// import java.util.Random;

/** A class of code for testing arithmetic
 *
 * @author Duncan Buell
 *
 * written: 14 October 2007
 *
**/
public class TestCode
{

/* **************************************************************************** */
/** Put in a constructor just in case I want one later.
**/
  public TestCode()
  {
  }
   
/* **************************************************************************** */
/** test the integer arithmetic size
**/
  public void doIntegerTest()
  {
    int theNumberBefore,theNumberAfter;

    System.out.println("");
    System.out.println("Test of positive integer arithmetic sizes");
    theNumberBefore = 1;
    theNumberAfter = 1;
    System.out.printf("   i        Before         After   2^i%n");
    for(int i = 1; i <= 32; ++i)
    {
      theNumberAfter = theNumberBefore * 2;
      System.out.printf("%4d %13d %13d %5d%n",i,theNumberBefore,theNumberAfter,i);
      theNumberBefore = theNumberAfter;
    } // for(int i = 1; i <= 32; ++i)

    System.out.println("");
    System.out.println("Test of negative integer arithmetic sizes");
    System.out.printf("   i        Before         After   2^i%n");
    theNumberBefore = -1;
    theNumberAfter = -1;
    for(int i = 1; i <= 32; ++i)
    {
      theNumberAfter = theNumberBefore * 2;
      System.out.printf("%4d %13d %13d %5d%n",i,theNumberBefore,theNumberAfter,i);
      theNumberBefore = theNumberAfter;
    } // for(int i = 1; i <= 32; ++i)

  } // public void doIntegerTest();
  
/* **************************************************************************** */
/** test the double precision point arithmetic size
  * all this shows is that doubles are not like integers
**/
  public void doDoubleTest1()
  {
    double theNumberBefore,theNumberAfter;

    System.out.println("");
    System.out.println("Test 1 of positive double precision arithmetic sizes");
    System.out.printf("   i             Before              After   2.0^i%n");
    theNumberBefore = 1.0;
    theNumberAfter = 1.0;
    for(int i = 1; i <= 32; ++i)
    {
      theNumberAfter = theNumberBefore * 2.0;
      System.out.printf("%4d %18f %18f %5d%n",i,theNumberBefore,theNumberAfter,i);
      theNumberBefore = theNumberAfter;
    } // for(int i = 1; i <= 32; ++i)

    System.out.println("");
    System.out.println("Test 1 of negative double precision arithmetic sizes");
    System.out.printf("   i             Before              After   2.0^i%n");
    theNumberBefore = -1.0;
    theNumberAfter = -1.0;
    for(int i = 1; i <= 32; ++i)
    {
      theNumberAfter = theNumberBefore * 2.0;
      System.out.printf("%4d %18f %18f %5d%n",i,theNumberBefore,theNumberAfter,i);
      theNumberBefore = theNumberAfter;
    } // for(int i = 1; i <= 32; ++i)

  } // public void doDoubleTest1();
  
/* **************************************************************************** */
/** test the double precision point arithmetic size
  * this test demonstrates double precision sizes
**/
  public void doDoubleTest2()
  {
    double theNumberBefore,theNumberAfter;

    System.out.println("");
    System.out.println("Test 2 of double precision arithmetic sizes");
    theNumberBefore = 2.0;
    theNumberAfter = 2.0;
    for(int i = 1; i <= 12; ++i)
    {
      theNumberAfter = theNumberBefore * theNumberBefore;
      System.out.println("i=" + i + " Before=" + theNumberBefore + ", After=" + theNumberAfter + " is Before^2");
      System.out.printf("%4d %18f %18f %5d%n",i,theNumberBefore,theNumberAfter,i);
      theNumberBefore = theNumberAfter;
    } // for(int i = 1; i <= 12; ++i)

  } // public void doDoubleTest2();
  
/* **************************************************************************** */
/** test the double precision point arithmetic size
  * this test demonstrates double precision sizes
**/
  public void doDoubleTest3()
  {
    double theAddin, theBaseNumber,theSum;

    System.out.println("");
    System.out.println("Test 3 of double precision arithmetic sizes");
    theBaseNumber= 1.0;
    theAddin = 1.0;
    for(int i = 1; i <= 53; ++i)
    {
      theAddin = theAddin / 2.0;
      theSum = theBaseNumber + theAddin;
//      System.out.printf("%4d %18f %18f %18f%n",i,theBaseNumber,theAddin,theSum);
      System.out.printf("%4d %24.20f %24.20f %24.20f%n",i,theBaseNumber,theAddin,theSum);
    } // for(int i = 1; i <= 53; ++i)

  } // public void doDoubleTest3();
  
/* **************************************************************************** */
/** test double precision arithmetic for money
**/
  public void doTenCentsTest()
  {
    double tenCents,theSum;

    System.out.println("");
    System.out.println("Test of double precision arithmetic for money");
    theSum = 1.00;
    tenCents = 1.00/10.0;
    System.out.println("Ten Cents is " + tenCents);
    System.out.printf("Ten Cents is %e%n",tenCents);
    for(int i = 1; i <= 100; ++i)
    {
      theSum = theSum + tenCents;
      System.out.println("Sum after " + i + " additions is " + theSum);
    } // for(int i = 1; i <= 10000; ++i)

  } // public void doTenCentsTest()
  
} // public class TestCode