@Test public void canCountNumbersOfLetters() throws Exception { String string = "abcd abc"; WordCounter wc = new WordCounter(string); assertEquals(2, wc.getCountOf('a')); assertEquals(1, wc.getCountOf('d')); assertEquals(0, wc.getCountOf('z')); }
@Test public void shouldWorkWithEmptyStrings() { WordCounter wordCounter = new WordCounter(""); assertEquals(0, wordCounter.getCountOf('a')); }