import org.junit.Assert;
import org.junit.Before;
import org.junit.Test;

public class RomanNumeralsTest {

    private RomanNumerals romanNumerals;

    @Before
    public void setUp(){
        romanNumerals = new RomanNumerals();
    }

    @Test
    public void testCaseForNumberSmallerThanZero(){
        Assert.assertEquals("Invalid number", romanNumerals.createRomanNumber(0));
    }

    @Test
    public void testCaseForNumberBiggerThanFourThousand(){
        Assert.assertEquals("Invalid number", romanNumerals.createRomanNumber(4001));
    }

    @Test
    public void testCaseForNumberOne(){
        String expected = "I";
        Assert.assertEquals(expected, romanNumerals.createRomanNumber(1));
    }

    @Test
    public void testCaseForNumberTwo(){
        String expected = "II";
        Assert.assertEquals(expected, romanNumerals.createRomanNumber(2));
    }

    @Test
    public void testCaseForNumberThree(){
        String expected ="III";
        Assert.assertEquals(expected, romanNumerals.createRomanNumber(3));
    }

    @Test
    public void testCaseForNumberFour(){
        String expected ="IV";
        Assert.assertEquals(expected, romanNumerals.createRomanNumber(4));
    }

    @Test
    public void testCaseForNumberFive(){
        String expected ="V";
        Assert.assertEquals(expected, romanNumerals.createRomanNumber(5));
    }

    @Test
    public void testCaseForNumberSix(){
        String expected ="VI";
        Assert.assertEquals(expected, romanNumerals.createRomanNumber(6));
    }

    @Test
    public void testCaseForNumberSeven(){
        String expected ="VII";
        Assert.assertEquals(expected, romanNumerals.createRomanNumber(7));
    }

    @Test
    public void testCaseForNumberEight(){
        String expected ="VIII";
        Assert.assertEquals(expected, romanNumerals.createRomanNumber(8));
    }

    @Test
    public void testCaseForNumberNine(){
        String expected ="IX";
        Assert.assertEquals(expected, romanNumerals.createRomanNumber(9));
    }

    @Test
    public void testCaseForNumberTen(){
        String expected ="X";
        Assert.assertEquals(expected, romanNumerals.createRomanNumber(10));
    }

    @Test
    public void testCaseForNumberEleven(){
        String expected ="XI";
        Assert.assertEquals(expected, romanNumerals.createRomanNumber(11));
    }

    @Test
    public void testCaseForNumberTwelve(){
        String expected ="XII";
        Assert.assertEquals(expected, romanNumerals.createRomanNumber(12));
    }

    @Test
    public void testCaseForNumberThirteen(){
        String expected ="XIII";
        Assert.assertEquals(expected, romanNumerals.createRomanNumber(13));
    }

    @Test
    public void testCaseForNumberFourteen(){
        String expected ="XIV";
        Assert.assertEquals(expected, romanNumerals.createRomanNumber(14));
    }


}