JavaExercism/exercises/twelve-days/src/test/java/TwelveDaysTest.java

import org.junit.Ignore;
import org.junit.Rule;
import org.junit.Test;
import org.junit.rules.ExpectedException;

import static org.junit.Assert.assertEquals;

public class TwelveDaysTest {
    @Rule
    public ExpectedException expectedException = ExpectedException.none();

    @Test
    public void testVerseOne() {
        String expectedVerseOne = "On the first day of Christmas my true love gave to me, " +
                "a Partridge in a Pear Tree.\n";
        assertEquals(expectedVerseOne, TwelveDays.verse(1));
    }

    @Ignore
    @Test
    public void testVerseTwo() {
        String expectedVerseTwo = "On the second day of Christmas my true love gave to me, two Turtle Doves, " +
                "and a Partridge in a Pear Tree.\n";
        assertEquals(expectedVerseTwo, TwelveDays.verse(2));
    }

    @Ignore
    @Test
    public void testVerseThree() {
        String expectedVerseThree = "On the third day of Christmas my true love gave to me, three French Hens, " +
                "two Turtle Doves, and a Partridge in a Pear Tree.\n";
        assertEquals(expectedVerseThree, TwelveDays.verse(3));
    }

    @Ignore
    @Test
    public void testVerseFour() {
        String expectedVerseFour = "On the fourth day of Christmas my true love gave to me, four Calling Birds, " +
                "three French Hens, two Turtle Doves, and a Partridge in a Pear Tree.\n";
        assertEquals(expectedVerseFour, TwelveDays.verse(4));
    }

    @Ignore
    @Test
    public void testVerseFive() {
        String expectedVerseFive = "On the fifth day of Christmas my true love gave to me, five Gold Rings, " +
                "four Calling Birds, three French Hens, two Turtle Doves, and a Partridge in a Pear Tree.\n";
        assertEquals(expectedVerseFive, TwelveDays.verse(5));
    }

    @Ignore
    @Test
    public void testVerseSix() {
        String expectedVerseSix = "On the sixth day of Christmas my true love gave to me, six Geese-a-Laying, " +
                "five Gold Rings, four Calling Birds, three French Hens, two Turtle Doves, " +
                "and a Partridge in a Pear Tree.\n";
        assertEquals(expectedVerseSix, TwelveDays.verse(6));
    }

    @Ignore
    @Test
    public void testVerseSeven() {
        String expectedVerseSeven = "On the seventh day of Christmas my true love gave to me, " +
                "seven Swans-a-Swimming, six Geese-a-Laying, five Gold Rings, four Calling Birds, three French Hens, " +
                "two Turtle Doves, and a Partridge in a Pear Tree.\n";
        assertEquals(expectedVerseSeven, TwelveDays.verse(7));
    }

    @Ignore
    @Test
    public void testVerseEight() {
        String expectedVerseEight = "On the eighth day of Christmas my true love gave to me, eight Maids-a-Milking," +
                " seven Swans-a-Swimming, six Geese-a-Laying, five Gold Rings, four Calling Birds, " +
                "three French Hens, two Turtle Doves, and a Partridge in a Pear Tree.\n";
        assertEquals(expectedVerseEight, TwelveDays.verse(8));
    }

    @Ignore
    @Test
    public void testVerseNine() {
        String expectedVerseNine = "On the ninth day of Christmas my true love gave to me, nine Ladies Dancing, " +
                "eight Maids-a-Milking, seven Swans-a-Swimming, six Geese-a-Laying, five Gold Rings, " +
                "four Calling Birds, three French Hens, two Turtle Doves, and a Partridge in a Pear Tree.\n";
        assertEquals(expectedVerseNine, TwelveDays.verse(9));
    }

    @Ignore
    @Test
    public void testVerseTen() {
        String expectedVerseTen = "On the tenth day of Christmas my true love gave to me, ten Lords-a-Leaping, " +
                "nine Ladies Dancing, eight Maids-a-Milking, seven Swans-a-Swimming, six Geese-a-Laying, " +
                "five Gold Rings, four Calling Birds, three French Hens, two Turtle Doves, " +
                "and a Partridge in a Pear Tree.\n";
        assertEquals(expectedVerseTen, TwelveDays.verse(10));
    }

    @Ignore
    @Test
    public void testVerseEleven() {
        String expectedVerseEleven = "On the eleventh day of Christmas my true love gave to me, " +
                "eleven Pipers Piping, ten Lords-a-Leaping, nine Ladies Dancing, eight Maids-a-Milking, " +
                "seven Swans-a-Swimming, six Geese-a-Laying, five Gold Rings, four Calling Birds, " +
                "three French Hens, two Turtle Doves, and a Partridge in a Pear Tree.\n";
        assertEquals(expectedVerseEleven, TwelveDays.verse(11));
    }

    @Ignore
    @Test
    public void testVerseTwelve() {
        String expectedVerseTwelve = "On the twelfth day of Christmas my true love gave to me, " +
                "twelve Drummers Drumming, eleven Pipers Piping, ten Lords-a-Leaping, nine Ladies Dancing, " +
                "eight Maids-a-Milking, seven Swans-a-Swimming, six Geese-a-Laying, five Gold Rings, " +
                "four Calling Birds, three French Hens, two Turtle Doves, and a Partridge in a Pear Tree.\n";
        assertEquals(expectedVerseTwelve, TwelveDays.verse(12));
    }

    @Ignore
    @Test
    public void testMultipleVerses() {
        String expectedVerseOneToThree = "On the first day of Christmas my true love gave to me, " +
                "a Partridge in a Pear Tree.\n\n" +
                "On the second day of Christmas my true love gave to me, two Turtle Doves, " +
                "and a Partridge in a Pear Tree.\n\n" +
                "On the third day of Christmas my true love gave to me, three French Hens, two Turtle Doves, " +
                "and a Partridge in a Pear Tree.\n\n";
        assertEquals(expectedVerseOneToThree, TwelveDays.verses(1, 3));
    }

    @Ignore
    @Test
    public void testSingWholeSong() {
        String expectedSong = "On the first day of Christmas my true love gave to me, a Partridge in a Pear Tree.\n" +
                "\n" +
                "On the second day of Christmas my true love gave to me, two Turtle Doves, " +
                "and a Partridge in a Pear Tree.\n" +
                "\n" +
                "On the third day of Christmas my true love gave to me, three French Hens, two Turtle Doves, " +
                "and a Partridge in a Pear Tree.\n" +
                "\n" +
                "On the fourth day of Christmas my true love gave to me, four Calling Birds, three French Hens, " +
                "two Turtle Doves, and a Partridge in a Pear Tree.\n" +
                "\n" +
                "On the fifth day of Christmas my true love gave to me, five Gold Rings, four Calling Birds, " +
                "three French Hens, two Turtle Doves, and a Partridge in a Pear Tree.\n" +
                "\n" +
                "On the sixth day of Christmas my true love gave to me, six Geese-a-Laying, five Gold Rings, " +
                "four Calling Birds, three French Hens, two Turtle Doves, and a Partridge in a Pear Tree.\n" +
                "\n" +
                "On the seventh day of Christmas my true love gave to me, seven Swans-a-Swimming, " +
                "six Geese-a-Laying, five Gold Rings, four Calling Birds, three French Hens, two Turtle Doves, " +
                "and a Partridge in a Pear Tree.\n" +
                "\n" +
                "On the eighth day of Christmas my true love gave to me, eight Maids-a-Milking, " +
                "seven Swans-a-Swimming, six Geese-a-Laying, five Gold Rings, four Calling Birds, " +
                "three French Hens, two Turtle Doves, and a Partridge in a Pear Tree.\n" +
                "\n" +
                "On the ninth day of Christmas my true love gave to me, nine Ladies Dancing, eight Maids-a-Milking," +
                " seven Swans-a-Swimming, six Geese-a-Laying, five Gold Rings, four Calling Birds, " +
                "three French Hens, two Turtle Doves, and a Partridge in a Pear Tree.\n" +
                "\n" +
                "On the tenth day of Christmas my true love gave to me, ten Lords-a-Leaping, nine Ladies Dancing," +
                " eight Maids-a-Milking, seven Swans-a-Swimming, six Geese-a-Laying, five Gold Rings, " +
                "four Calling Birds, three French Hens, two Turtle Doves, and a Partridge in a Pear Tree.\n" +
                "\n" +
                "On the eleventh day of Christmas my true love gave to me, eleven Pipers Piping, " +
                "ten Lords-a-Leaping, nine Ladies Dancing, eight Maids-a-Milking, seven Swans-a-Swimming, " +
                "six Geese-a-Laying, five Gold Rings, four Calling Birds, three French Hens, two Turtle Doves, " +
                "and a Partridge in a Pear Tree.\n" +
                "\n" +
                "On the twelfth day of Christmas my true love gave to me, twelve Drummers Drumming, " +
                "eleven Pipers Piping, ten Lords-a-Leaping, nine Ladies Dancing, eight Maids-a-Milking, " +
                "seven Swans-a-Swimming, six Geese-a-Laying, five Gold Rings, four Calling Birds, " +
                "three French Hens, two Turtle Doves, and a Partridge in a Pear Tree.\n";
        assertEquals(expectedSong, TwelveDays.sing());
    }
}