public void last2()
{
assertEquals("Input: last2(\"hixxhi\")", 1, exercises.Last2("hixxhi"));
assertEquals("Input: last2(\"xaxxaxaxx\")", 1, exercises.Last2("xaxxaxaxx"));
assertEquals("Input: last2(\"axxxaaxx\")", 2, exercises.Last2("axxxaaxx"));
assertEquals("Input: last2(\"xxaxxaxxaxx\")", 3, exercises.Last2("xxaxxaxxaxx"));
assertEquals("Input: last2(\"xaxaxaxx\")", 0, exercises.Last2("xaxaxaxx"));
assertEquals("Input: last2(\"xxxx\")", 2, exercises.Last2("xxxx"));
assertEquals("Input: last2(\"13121312\")", 1, exercises.Last2("13121312"));
assertEquals("Input: last2(\"11212\")", 1, exercises.Last2("11212"));
assertEquals("Input: last2(\"13121311\")", 0, exercises.Last2("13121311"));
assertEquals("Input: last2(\"1717171\")", 2, exercises.Last2("1717171"));
assertEquals("Input: last2(\"hi\")", 0, exercises.Last2("hi"));
assertEquals("Input: last2(\"h\")", 0, exercises.Last2("h"));
assertEquals("Input: last2(\"\")", 0, exercises.Last2(""));
}
