test/jdk/java/text/Format/DecimalFormat/Bug8165466.java

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/*
 * @test
 * @bug 8165466
 * @summary Checks the subsequent function calls of the DecimalFormat.format()
 *          method in which the minimumFractionDigit is set to 0 and one of
 *          the format() call include formatting of the number with zero
 *          fraction value e.g. 0.00, 9.00
 */

import java.text.DecimalFormat;
import java.util.Locale;

public class Bug8165466 {

    public static void main(String[] args) {
        DecimalFormat nf = (DecimalFormat) DecimalFormat
                .getPercentInstance(Locale.US);
        nf.setMaximumFractionDigits(3);
        nf.setMinimumFractionDigits(0);
        nf.setMultiplier(1);

        double d = 0.005678;
        String result = nf.format(d);
        if (!result.equals("0.006%")) {
            throw new RuntimeException("[Failed while formatting the double"
                    + " value: " + d + " Expected: 0.006%, Found: " + result
                    + "]");
        }

        d = 0.00;
        result = nf.format(d);
        if (!result.equals("0%")) {
            throw new RuntimeException("[Failed while formatting the double"
                    + " value: " + d + " Expected: 0%, Found: " + result
                    + "]");
        }

        d = 0.005678;
        result = nf.format(d);
        if (!result.equals("0.006%")) {
            throw new RuntimeException("[Failed while formatting the double"
                    + " value: " + d + " Expected: 0.006%, Found: " + result
                    + "]");
        }

        //checking with the non zero value
        d = 0.005678;
        result = nf.format(d);
        if (!result.equals("0.006%")) {
            throw new RuntimeException("[Failed while formatting the double"
                    + " value: " + d + " Expected: 0.006%, Found: " + result
                    + "]");
        }

        d = 9.00;
        result = nf.format(d);
        if (!result.equals("9%")) {
            throw new RuntimeException("[Failed while formatting the double"
                    + " value: " + d + " Expected: 9%, Found: " + result
                    + "]");
        }

        d = 0.005678;
        result = nf.format(d);
        if (!result.equals("0.006%")) {
            throw new RuntimeException("[Failed while formatting the double"
                    + " value: " + d + " Expected: 0.006%, Found: " + result
                    + "]");
        }
    }

}