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/*
 * @test
 * @bug 8187551
 * @summary test MessageFormat.setFormat() method to throw AIOOBE on invalid
 *          index
 */

import java.text.ChoiceFormat;
import java.text.MessageFormat;
import java.util.Arrays;

public class Bug8187551 {

    public static void main(String[] args) {

        //invalid cases ("pattern", "invalid format element index")
        String[][] invalidCases = {{"The disk \"{1}\" contains {0}.", "2"},
                {"The disk \"{1}\" contains {0}.", "9"},
                {"On {1}, there are {0} and {2} folders", "3"}};

        //invalid cases (must throw exception)
        Arrays.stream(invalidCases).forEach(entry -> testSetFormat(entry[0],
                Integer.valueOf(entry[1])));

    }

    // test the setFormat method for the given pattern and
    // format element index
    private static void testSetFormat(String pattern, int elemIndex) {
        MessageFormat form = new MessageFormat(pattern);

        double[] fileLimits = {0, 1, 2};
        String[] filePart = {"no files", "one file", "{0,number} files"};
        ChoiceFormat fileForm = new ChoiceFormat(fileLimits, filePart);

        boolean AIOOBEThrown = false;
        try {
            form.setFormat(elemIndex, fileForm);
        } catch (ArrayIndexOutOfBoundsException ex) {
            AIOOBEThrown = true;
        }

        if (!AIOOBEThrown) {
            throw new RuntimeException("[FAILED: Must throw" +
                    " ArrayIndexOutOfBoundsException for" +
                    " invalid index " + elemIndex + " used in" +
                    " MessageFormat.setFormat(index, format)]");
        }
    }

}