TestStringUtils

package me.dvorkin;

import static org.junit.Assert.*;

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

public class TestStringUtils {
    String s;

    @Before
    public void setUp() {
        s = "Hello, Denis!";
    }

    @Test
    public void testRemoveVowels() {
        assertEquals(StringUtils.removeVowels("hello"), "hll");
        assertEquals(StringUtils.removeVowels("HELLO"), "HLL");
    }

    @Test
    public void testSequential() {
        s = StringUtils.removeVowels(s);
        assertEquals(s, "Hll, Dns!");
        s = StringUtils.removeN(s);
        assertEquals(s, "Hll, Ds!");
    }

    @Test
    public void testSequential2() {
        s = StringUtils.removeN(s);
        assertEquals(s, "Hello, Deis!");
        s = StringUtils.removeVowels(s);
        assertEquals(s, "Hll, Ds!");
    }
}