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Java example source code file (TCKDateTimeFormatterBuilder.java)

This example Java source code file (TCKDateTimeFormatterBuilder.java) is included in the alvinalexander.com "Java Source Code Warehouse" project. The intent of this project is to help you "Learn Java by Example" TM.

Learn more about this Java project at its project page.

Java - Java tags/keywords

dataprovider, datetimeformatter, exception, hh:mm:ss, hhmmss, localdate\:\:from, object, qqqqq, string, temporal, test, util, zoneoffset

The TCKDateTimeFormatterBuilder.java Java example source code

/*
 * Copyright (c) 2012, 2013, Oracle and/or its affiliates. All rights reserved.
 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
 *
 * This code is free software; you can redistribute it and/or modify it
 * under the terms of the GNU General Public License version 2 only, as
 * published by the Free Software Foundation.
 *
 * This code is distributed in the hope that it will be useful, but WITHOUT
 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
 * version 2 for more details (a copy is included in the LICENSE file that
 * accompanied this code).
 *
 * You should have received a copy of the GNU General Public License version
 * 2 along with this work; if not, write to the Free Software Foundation,
 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
 *
 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
 * or visit www.oracle.com if you need additional information or have any
 * questions.
 */

/*
 * This file is available under and governed by the GNU General Public
 * License version 2 only, as published by the Free Software Foundation.
 * However, the following notice accompanied the original version of this
 * file:
 *
 * Copyright (c) 2009-2012, Stephen Colebourne & Michael Nascimento Santos
 *
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are met:
 *
 *  * Redistributions of source code must retain the above copyright notice,
 *    this list of conditions and the following disclaimer.
 *
 *  * Redistributions in binary form must reproduce the above copyright notice,
 *    this list of conditions and the following disclaimer in the documentation
 *    and/or other materials provided with the distribution.
 *
 *  * Neither the name of JSR-310 nor the names of its contributors
 *    may be used to endorse or promote products derived from this software
 *    without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
 * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
 * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */
package tck.java.time.format;

import static java.time.temporal.ChronoField.DAY_OF_MONTH;
import static java.time.temporal.ChronoField.MINUTE_OF_HOUR;
import static java.time.temporal.ChronoField.MONTH_OF_YEAR;
import static java.time.temporal.ChronoField.YEAR;
import static org.testng.Assert.assertEquals;

import java.time.LocalDate;
import java.time.YearMonth;
import java.time.ZoneOffset;
import java.time.format.DateTimeFormatter;
import java.time.format.DateTimeFormatterBuilder;
import java.time.format.SignStyle;
import java.time.format.TextStyle;
import java.time.temporal.Temporal;
import java.util.HashMap;
import java.util.Locale;
import java.util.Map;

import org.testng.annotations.BeforeMethod;
import org.testng.annotations.DataProvider;
import org.testng.annotations.Test;

/**
 * Test DateTimeFormatterBuilder.
 */
@Test
public class TCKDateTimeFormatterBuilder {

    private DateTimeFormatterBuilder builder;

    @BeforeMethod
    public void setUp() {
        builder = new DateTimeFormatterBuilder();
    }

    //-----------------------------------------------------------------------
    @Test
    public void test_toFormatter_empty() throws Exception {
        DateTimeFormatter f = builder.toFormatter();
        assertEquals(f.format(LocalDate.of(2012, 6, 30)), "");
    }

    //-----------------------------------------------------------------------
    @Test
    public void test_parseDefaulting_entireDate() {
        DateTimeFormatter f = builder
            .parseDefaulting(YEAR, 2012).parseDefaulting(MONTH_OF_YEAR, 6)
            .parseDefaulting(DAY_OF_MONTH, 30).toFormatter();
        LocalDate parsed = f.parse("", LocalDate::from);  // blank string can be parsed
        assertEquals(parsed, LocalDate.of(2012, 6, 30));
    }

    @Test
    public void test_parseDefaulting_yearOptionalMonthOptionalDay() {
        DateTimeFormatter f = builder
                .appendValue(YEAR)
                .optionalStart().appendLiteral('-').appendValue(MONTH_OF_YEAR)
                .optionalStart().appendLiteral('-').appendValue(DAY_OF_MONTH)
                .optionalEnd().optionalEnd()
                .parseDefaulting(MONTH_OF_YEAR, 1)
                .parseDefaulting(DAY_OF_MONTH, 1).toFormatter();
        assertEquals(f.parse("2012", LocalDate::from), LocalDate.of(2012, 1, 1));
        assertEquals(f.parse("2012-6", LocalDate::from), LocalDate.of(2012, 6, 1));
        assertEquals(f.parse("2012-6-30", LocalDate::from), LocalDate.of(2012, 6, 30));
    }

    @Test(expectedExceptions = NullPointerException.class)
    public void test_parseDefaulting_null() {
        builder.parseDefaulting(null, 1);
    }

    //-----------------------------------------------------------------------
    @Test(expectedExceptions=NullPointerException.class)
    public void test_appendValue_1arg_null() throws Exception {
        builder.appendValue(null);
    }

    //-----------------------------------------------------------------------
    @Test(expectedExceptions=NullPointerException.class)
    public void test_appendValue_2arg_null() throws Exception {
        builder.appendValue(null, 3);
    }

    @Test(expectedExceptions=IllegalArgumentException.class)
    public void test_appendValue_2arg_widthTooSmall() throws Exception {
        builder.appendValue(DAY_OF_MONTH, 0);
    }

    @Test(expectedExceptions=IllegalArgumentException.class)
    public void test_appendValue_2arg_widthTooBig() throws Exception {
        builder.appendValue(DAY_OF_MONTH, 20);
    }

    //-----------------------------------------------------------------------
    @Test(expectedExceptions=NullPointerException.class)
    public void test_appendValue_3arg_nullField() throws Exception {
        builder.appendValue(null, 2, 3, SignStyle.NORMAL);
    }

    @Test(expectedExceptions=IllegalArgumentException.class)
    public void test_appendValue_3arg_minWidthTooSmall() throws Exception {
        builder.appendValue(DAY_OF_MONTH, 0, 2, SignStyle.NORMAL);
    }

    @Test(expectedExceptions=IllegalArgumentException.class)
    public void test_appendValue_3arg_minWidthTooBig() throws Exception {
        builder.appendValue(DAY_OF_MONTH, 20, 2, SignStyle.NORMAL);
    }

    @Test(expectedExceptions=IllegalArgumentException.class)
    public void test_appendValue_3arg_maxWidthTooSmall() throws Exception {
        builder.appendValue(DAY_OF_MONTH, 2, 0, SignStyle.NORMAL);
    }

    @Test(expectedExceptions=IllegalArgumentException.class)
    public void test_appendValue_3arg_maxWidthTooBig() throws Exception {
        builder.appendValue(DAY_OF_MONTH, 2, 20, SignStyle.NORMAL);
    }

    @Test(expectedExceptions=IllegalArgumentException.class)
    public void test_appendValue_3arg_maxWidthMinWidth() throws Exception {
        builder.appendValue(DAY_OF_MONTH, 4, 2, SignStyle.NORMAL);
    }

    @Test(expectedExceptions=NullPointerException.class)
    public void test_appendValue_3arg_nullSignStyle() throws Exception {
        builder.appendValue(DAY_OF_MONTH, 2, 3, null);
    }

    //-----------------------------------------------------------------------
    @Test(expectedExceptions=NullPointerException.class)
    public void test_appendValueReduced_int_nullField() throws Exception {
        builder.appendValueReduced(null, 2, 2, 2000);
    }

    @Test(expectedExceptions=IllegalArgumentException.class)
    public void test_appendValueReduced_int_minWidthTooSmall() throws Exception {
        builder.appendValueReduced(YEAR, 0, 2, 2000);
    }

    @Test(expectedExceptions=IllegalArgumentException.class)
    public void test_appendValueReduced_int_minWidthTooBig() throws Exception {
        builder.appendValueReduced(YEAR, 11, 2, 2000);
    }

    @Test(expectedExceptions=IllegalArgumentException.class)
    public void test_appendValueReduced_int_maxWidthTooSmall() throws Exception {
        builder.appendValueReduced(YEAR, 2, 0, 2000);
    }

    @Test(expectedExceptions=IllegalArgumentException.class)
    public void test_appendValueReduced_int_maxWidthTooBig() throws Exception {
        builder.appendValueReduced(YEAR, 2, 11, 2000);
    }

    @Test(expectedExceptions=IllegalArgumentException.class)
    public void test_appendValueReduced_int_maxWidthLessThanMin() throws Exception {
        builder.appendValueReduced(YEAR, 2, 1, 2000);
    }

    //-----------------------------------------------------------------------
    @Test(expectedExceptions=NullPointerException.class)
    public void test_appendValueReduced_date_nullField() throws Exception {
        builder.appendValueReduced(null, 2, 2, LocalDate.of(2000, 1, 1));
    }

    @Test(expectedExceptions=NullPointerException.class)
    public void test_appendValueReduced_date_nullDate() throws Exception {
        builder.appendValueReduced(YEAR, 2, 2, null);
    }

    @Test(expectedExceptions=IllegalArgumentException.class)
    public void test_appendValueReduced_date_minWidthTooSmall() throws Exception {
        builder.appendValueReduced(YEAR, 0, 2, LocalDate.of(2000, 1, 1));
    }

    @Test(expectedExceptions=IllegalArgumentException.class)
    public void test_appendValueReduced_date_minWidthTooBig() throws Exception {
        builder.appendValueReduced(YEAR, 11, 2, LocalDate.of(2000, 1, 1));
    }

    @Test(expectedExceptions=IllegalArgumentException.class)
    public void test_appendValueReduced_date_maxWidthTooSmall() throws Exception {
        builder.appendValueReduced(YEAR, 2, 0, LocalDate.of(2000, 1, 1));
    }

    @Test(expectedExceptions=IllegalArgumentException.class)
    public void test_appendValueReduced_date_maxWidthTooBig() throws Exception {
        builder.appendValueReduced(YEAR, 2, 11, LocalDate.of(2000, 1, 1));
    }

    @Test(expectedExceptions=IllegalArgumentException.class)
    public void test_appendValueReduced_date_maxWidthLessThanMin() throws Exception {
        builder.appendValueReduced(YEAR, 2, 1, LocalDate.of(2000, 1, 1));
    }

    //-----------------------------------------------------------------------
    //-----------------------------------------------------------------------
    //-----------------------------------------------------------------------
    @Test(expectedExceptions=NullPointerException.class)
    public void test_appendFraction_4arg_nullRule() throws Exception {
        builder.appendFraction(null, 1, 9, false);
    }

    @Test(expectedExceptions=IllegalArgumentException.class)
    public void test_appendFraction_4arg_invalidRuleNotFixedSet() throws Exception {
        builder.appendFraction(DAY_OF_MONTH, 1, 9, false);
    }

    @Test(expectedExceptions=IllegalArgumentException.class)
    public void test_appendFraction_4arg_minTooSmall() throws Exception {
        builder.appendFraction(MINUTE_OF_HOUR, -1, 9, false);
    }

    @Test(expectedExceptions=IllegalArgumentException.class)
    public void test_appendFraction_4arg_minTooBig() throws Exception {
        builder.appendFraction(MINUTE_OF_HOUR, 10, 9, false);
    }

    @Test(expectedExceptions=IllegalArgumentException.class)
    public void test_appendFraction_4arg_maxTooSmall() throws Exception {
        builder.appendFraction(MINUTE_OF_HOUR, 0, -1, false);
    }

    @Test(expectedExceptions=IllegalArgumentException.class)
    public void test_appendFraction_4arg_maxTooBig() throws Exception {
        builder.appendFraction(MINUTE_OF_HOUR, 1, 10, false);
    }

    @Test(expectedExceptions=IllegalArgumentException.class)
    public void test_appendFraction_4arg_maxWidthMinWidth() throws Exception {
        builder.appendFraction(MINUTE_OF_HOUR, 9, 3, false);
    }

    //-----------------------------------------------------------------------
    //-----------------------------------------------------------------------
    //-----------------------------------------------------------------------
    @Test(expectedExceptions=NullPointerException.class)
    public void test_appendText_1arg_null() throws Exception {
        builder.appendText(null);
    }

    //-----------------------------------------------------------------------
    @Test(expectedExceptions=NullPointerException.class)
    public void test_appendText_2arg_nullRule() throws Exception {
        builder.appendText(null, TextStyle.SHORT);
    }

    @Test(expectedExceptions=NullPointerException.class)
    public void test_appendText_2arg_nullStyle() throws Exception {
        builder.appendText(MONTH_OF_YEAR, (TextStyle) null);
    }

    //-----------------------------------------------------------------------
    @Test(expectedExceptions=NullPointerException.class)
    public void test_appendTextMap_nullRule() throws Exception {
        builder.appendText(null, new HashMap<>());
    }

    @Test(expectedExceptions=NullPointerException.class)
    public void test_appendTextMap_nullStyle() throws Exception {
        builder.appendText(MONTH_OF_YEAR, (Map<Long, String>) null);
    }

    //-----------------------------------------------------------------------
    //-----------------------------------------------------------------------
    //-----------------------------------------------------------------------
    @DataProvider(name="offsetPatterns")
    Object[][] data_offsetPatterns() {
        return new Object[][] {
                {"+HH", 2, 0, 0, "+02"},
                {"+HH", -2, 0, 0, "-02"},
                {"+HH", 2, 30, 0, "+02"},
                {"+HH", 2, 0, 45, "+02"},
                {"+HH", 2, 30, 45, "+02"},

                {"+HHMM", 2, 0, 0, "+0200"},
                {"+HHMM", -2, 0, 0, "-0200"},
                {"+HHMM", 2, 30, 0, "+0230"},
                {"+HHMM", 2, 0, 45, "+0200"},
                {"+HHMM", 2, 30, 45, "+0230"},

                {"+HH:MM", 2, 0, 0, "+02:00"},
                {"+HH:MM", -2, 0, 0, "-02:00"},
                {"+HH:MM", 2, 30, 0, "+02:30"},
                {"+HH:MM", 2, 0, 45, "+02:00"},
                {"+HH:MM", 2, 30, 45, "+02:30"},

                {"+HHMMss", 2, 0, 0, "+0200"},
                {"+HHMMss", -2, 0, 0, "-0200"},
                {"+HHMMss", 2, 30, 0, "+0230"},
                {"+HHMMss", 2, 0, 45, "+020045"},
                {"+HHMMss", 2, 30, 45, "+023045"},

                {"+HH:MM:ss", 2, 0, 0, "+02:00"},
                {"+HH:MM:ss", -2, 0, 0, "-02:00"},
                {"+HH:MM:ss", 2, 30, 0, "+02:30"},
                {"+HH:MM:ss", 2, 0, 45, "+02:00:45"},
                {"+HH:MM:ss", 2, 30, 45, "+02:30:45"},

                {"+HHMMSS", 2, 0, 0, "+020000"},
                {"+HHMMSS", -2, 0, 0, "-020000"},
                {"+HHMMSS", 2, 30, 0, "+023000"},
                {"+HHMMSS", 2, 0, 45, "+020045"},
                {"+HHMMSS", 2, 30, 45, "+023045"},

                {"+HH:MM:SS", 2, 0, 0, "+02:00:00"},
                {"+HH:MM:SS", -2, 0, 0, "-02:00:00"},
                {"+HH:MM:SS", 2, 30, 0, "+02:30:00"},
                {"+HH:MM:SS", 2, 0, 45, "+02:00:45"},
                {"+HH:MM:SS", 2, 30, 45, "+02:30:45"},
        };
    }

    @Test(dataProvider="offsetPatterns")
    public void test_appendOffset_format(String pattern, int h, int m, int s, String expected) throws Exception {
        builder.appendOffset(pattern, "Z");
        DateTimeFormatter f = builder.toFormatter();
        ZoneOffset offset = ZoneOffset.ofHoursMinutesSeconds(h, m, s);
        assertEquals(f.format(offset), expected);
    }

    @Test(dataProvider="offsetPatterns")
    public void test_appendOffset_parse(String pattern, int h, int m, int s, String expected) throws Exception {
        builder.appendOffset(pattern, "Z");
        DateTimeFormatter f = builder.toFormatter();
        ZoneOffset parsed = f.parse(expected, ZoneOffset::from);
        assertEquals(f.format(parsed), expected);
    }

    @DataProvider(name="badOffsetPatterns")
    Object[][] data_badOffsetPatterns() {
        return new Object[][] {
            {"HH"},
            {"HHMM"},
            {"HH:MM"},
            {"HHMMss"},
            {"HH:MM:ss"},
            {"HHMMSS"},
            {"HH:MM:SS"},
            {"+H"},
            {"+HMM"},
            {"+HHM"},
            {"+A"},
        };
    }

    @Test(dataProvider="badOffsetPatterns", expectedExceptions=IllegalArgumentException.class)
    public void test_appendOffset_badPattern(String pattern) throws Exception {
        builder.appendOffset(pattern, "Z");
    }

    @Test(expectedExceptions=NullPointerException.class)
    public void test_appendOffset_3arg_nullText() throws Exception {
        builder.appendOffset("+HH:MM", null);
    }

    @Test(expectedExceptions=NullPointerException.class)
    public void test_appendOffset_3arg_nullPattern() throws Exception {
        builder.appendOffset(null, "Z");
    }

    //-----------------------------------------------------------------------
    //-----------------------------------------------------------------------
    //-----------------------------------------------------------------------
    @Test(expectedExceptions=NullPointerException.class)
    public void test_appendZoneText_1arg_nullText() throws Exception {
        builder.appendZoneText(null);
    }

    //-----------------------------------------------------------------------
    //-----------------------------------------------------------------------
    //-----------------------------------------------------------------------
    @Test
    public void test_padNext_1arg() {
        builder.appendValue(MONTH_OF_YEAR).appendLiteral(':').padNext(2).appendValue(DAY_OF_MONTH);
        assertEquals(builder.toFormatter().format(LocalDate.of(2013, 2, 1)), "2: 1");
    }

    @Test(expectedExceptions=IllegalArgumentException.class)
    public void test_padNext_1arg_invalidWidth() throws Exception {
        builder.padNext(0);
    }

    //-----------------------------------------------------------------------
    @Test
    public void test_padNext_2arg_dash() throws Exception {
        builder.appendValue(MONTH_OF_YEAR).appendLiteral(':').padNext(2, '-').appendValue(DAY_OF_MONTH);
        assertEquals(builder.toFormatter().format(LocalDate.of(2013, 2, 1)), "2:-1");
    }

    @Test(expectedExceptions=IllegalArgumentException.class)
    public void test_padNext_2arg_invalidWidth() throws Exception {
        builder.padNext(0, '-');
    }

    //-----------------------------------------------------------------------
    @Test
    public void test_padOptional() throws Exception {
        builder.appendValue(MONTH_OF_YEAR).appendLiteral(':')
                .padNext(5).optionalStart().appendValue(DAY_OF_MONTH).optionalEnd()
                .appendLiteral(':').appendValue(YEAR);
        assertEquals(builder.toFormatter().format(LocalDate.of(2013, 2, 1)), "2:    1:2013");
        assertEquals(builder.toFormatter().format(YearMonth.of(2013, 2)), "2:     :2013");
    }

    //-----------------------------------------------------------------------
    //-----------------------------------------------------------------------
    //-----------------------------------------------------------------------
    @Test(expectedExceptions=IllegalStateException.class)
    public void test_optionalEnd_noStart() throws Exception {
        builder.optionalEnd();
    }

    //-----------------------------------------------------------------------
    //-----------------------------------------------------------------------
    //-----------------------------------------------------------------------
    @DataProvider(name="validPatterns")
    Object[][] dataValid() {
        return new Object[][] {
            {"'a'"},
            {"''"},
            {"'!'"},
            {"!"},
            {"'#'"},

            {"'hello_people,][)('"},
            {"'hi'"},
            {"'yyyy'"},
            {"''''"},
            {"'o''clock'"},

            {"G"},
            {"GG"},
            {"GGG"},
            {"GGGG"},
            {"GGGGG"},

            {"y"},
            {"yy"},
            {"yyy"},
            {"yyyy"},
            {"yyyyy"},

            {"M"},
            {"MM"},
            {"MMM"},
            {"MMMM"},
            {"MMMMM"},

            {"L"},
            {"LL"},
            {"LLL"},
            {"LLLL"},
            {"LLLLL"},

            {"D"},
            {"DD"},
            {"DDD"},

            {"d"},
            {"dd"},

            {"F"},

            {"Q"},
            {"QQ"},
            {"QQQ"},
            {"QQQQ"},
            {"QQQQQ"},

            {"q"},
            {"qq"},
            {"qqq"},
            {"qqqq"},
            {"qqqqq"},

            {"E"},
            {"EE"},
            {"EEE"},
            {"EEEE"},
            {"EEEEE"},

            {"e"},
            {"ee"},
            {"eee"},
            {"eeee"},
            {"eeeee"},

            {"c"},
            {"ccc"},
            {"cccc"},
            {"ccccc"},

            {"a"},

            {"H"},
            {"HH"},

            {"K"},
            {"KK"},

            {"k"},
            {"kk"},

            {"h"},
            {"hh"},

            {"m"},
            {"mm"},

            {"s"},
            {"ss"},

            {"S"},
            {"SS"},
            {"SSS"},
            {"SSSSSSSSS"},

            {"A"},
            {"AA"},
            {"AAA"},

            {"n"},
            {"nn"},
            {"nnn"},

            {"N"},
            {"NN"},
            {"NNN"},

            {"z"},
            {"zz"},
            {"zzz"},
            {"zzzz"},

            {"VV"},

            {"Z"},
            {"ZZ"},
            {"ZZZ"},

            {"X"},
            {"XX"},
            {"XXX"},
            {"XXXX"},
            {"XXXXX"},

            {"x"},
            {"xx"},
            {"xxx"},
            {"xxxx"},
            {"xxxxx"},

            {"ppH"},
            {"pppDD"},

            {"yyyy[-MM[-dd"},
            {"yyyy[-MM[-dd]]"},
            {"yyyy[-MM[]-dd]"},

            {"yyyy-MM-dd'T'HH:mm:ss.SSS"},

            {"e"},
            {"w"},
            {"ww"},
            {"W"},
            {"W"},

        };
    }

    @Test(dataProvider="validPatterns")
    public void test_appendPattern_valid(String input) throws Exception {
        builder.appendPattern(input);  // test is for no error here
    }

    //-----------------------------------------------------------------------
    @DataProvider(name="invalidPatterns")
    Object[][] dataInvalid() {
        return new Object[][] {
            {"'"},
            {"'hello"},
            {"'hel''lo"},
            {"'hello''"},
            {"{"},
            {"}"},
            {"{}"},
            {"#"},
            {"]"},
            {"yyyy]"},
            {"yyyy]MM"},
            {"yyyy[MM]]"},

            {"aa"},
            {"aaa"},
            {"aaaa"},
            {"aaaaa"},
            {"aaaaaa"},
            {"MMMMMM"},
            {"QQQQQQ"},
            {"qqqqqq"},
            {"EEEEEE"},
            {"eeeeee"},
            {"cc"},
            {"cccccc"},
            {"ddd"},
            {"DDDD"},
            {"FF"},
            {"FFF"},
            {"hhh"},
            {"HHH"},
            {"kkk"},
            {"KKK"},
            {"mmm"},
            {"sss"},
            {"OO"},
            {"OOO"},
            {"OOOOO"},
            {"XXXXXX"},
            {"zzzzz"},
            {"ZZZZZZ"},

            {"RO"},

            {"p"},
            {"pp"},
            {"p:"},

            {"f"},
            {"ff"},
            {"f:"},
            {"fy"},
            {"fa"},
            {"fM"},

            {"www"},
            {"WW"},
        };
    }

    @Test(dataProvider="invalidPatterns", expectedExceptions=IllegalArgumentException.class)
    public void test_appendPattern_invalid(String input) throws Exception {
        builder.appendPattern(input);  // test is for error here
    }

    //-----------------------------------------------------------------------
    @DataProvider(name="patternPrint")
    Object[][] data_patternPrint() {
        return new Object[][] {
            {"Q", date(2012, 2, 10), "1"},
            {"QQ", date(2012, 2, 10), "01"},
            {"QQQ", date(2012, 2, 10), "Q1"},
            {"QQQQ", date(2012, 2, 10), "1st quarter"},
            {"QQQQQ", date(2012, 2, 10), "1"},
        };
    }

    @Test(dataProvider="patternPrint")
    public void test_appendPattern_patternPrint(String input, Temporal temporal, String expected) throws Exception {
        DateTimeFormatter f = builder.appendPattern(input).toFormatter(Locale.UK);
        String test = f.format(temporal);
        assertEquals(test, expected);
    }

    private static Temporal date(int y, int m, int d) {
        return LocalDate.of(y, m, d);
    }

}

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