@Test
public void testException() {

    assertEquals("", mLog.getOut());
    assertEquals("", mLog.getErr());
    Exception e = new Exception("My Exception");
    mLog.exception(e, "Test %d", 44);
    assertEquals("", mLog.getOut());
    assertTrue(mLog.getErr().startsWith("Test 44\njava.lang.Exception: My Exception"));
}