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/**
 * @test
 * @bug 4068067
 * @summary test NumberFormat with exponential separator symbols. It also tests the new
 *          public methods in DecimalFormatSymbols, setExponentSeparator() and
 *          getExponentSeparator()
 * @run junit DFSExponential
 */

import java.util.*;
import java.text.*;

import org.junit.jupiter.api.Test;

import static org.junit.jupiter.api.Assertions.fail;

public class DFSExponential
{


   public void DFSExponenTest() throws Exception {
        DecimalFormatSymbols sym = new DecimalFormatSymbols(Locale.US);
        String pat[] = { "0.####E0", "00.000E00", "##0.####E000", "0.###E0;[0.###E0]"  };
        double val[] = { 0.01234, 123456789, 1.23e300, -3.141592653e-271 };
        long lval[] = { 0, -1, 1, 123456789 };
        String valFormat[][] = {
                {"1.234x10^-2", "1.2346x10^8", "1.23x10^300", "-3.1416x10^-271"},
                {"12.340x10^-03", "12.346x10^07", "12.300x10^299", "-31.416x10^-272"},
                {"12.34x10^-003", "123.4568x10^006", "1.23x10^300", "-314.1593x10^-273"},
                {"1.234x10^-2", "1.235x10^8", "1.23x10^300", "[3.142x10^-271]"},
        };


        int ival = 0, ilval = 0;
        System.out.println("Default exponent separator: "+sym.getExponentSeparator());
        try {
            sym.setExponentSeparator("x10^");
        } catch (NullPointerException e){
            fail("null String was passed to set an exponent separator symbol");
            throw new RuntimeException("Test Malfunction: null String was passed to set an exponent separator symbol" );
        }
        System.out.println("Current exponent separator: "+sym.getExponentSeparator());

        for (int p=0; p<pat.length; ++p){
            DecimalFormat fmt = new DecimalFormat(pat[p], sym);
            System.out.println("     Pattern: " + fmt.toPattern());
            String locPattern = fmt.toLocalizedPattern();
            System.out.println("     Localized pattern: "+locPattern);
            //fmt.applyLocalizedPattern(locPattern);
            //System.out.println("      fmt.applyLocalizedPattern(): "+fmt.toLocalizedPattern());

            for (int v=0; v<val.length; ++v) {
                String s = fmt.format(val[v]);
                System.out.println("         " + val[v]+" --> "+s);
                if(valFormat[p][v].equals(s)){
                    System.out.println(": Passed");
                }else{
                   fail(" Failed: Should be formatted as "+valFormat[p][v]+ "but got "+s);
                   throw new RuntimeException(" Failed: Should be formatted as "+valFormat[p][v]+ "but got "+s);
                }
           }
         } //end of the first for loop
   }
}