tester.clickLink("start");
tester.assertLabel("guessesRemaining", "5");
clickLetter(tester, 'f');
tester.assertLabel("guessesRemaining", "4");
clickLetter(tester, 'e');
tester.assertLabel("guessesRemaining", "3");
clickLetter(tester, 't');
tester.assertLabel("guessesRemaining", "2");
clickLetter(tester, 'x');
tester.assertLabel("guessesRemaining", "1");
clickLetter(tester, 'z');