@Test
public void testGetMin() throws Exception {
// invalid values
assertEquals("INF", NumUtil.getMin("acb", "fsdf"));
assertEquals("22", NumUtil.getMin("acb", "22"));
assertEquals("-22", NumUtil.getMin("-22", "fdf3fdf22"));
// two values
assertEquals("11", NumUtil.getMin("11", "22"));
assertEquals("11", NumUtil.getMin("11", "11"));
assertEquals("11", NumUtil.getMin("12", "11"));
// three values
assertEquals("1", NumUtil.getMin("2", "1", "3"));
assertEquals("3", NumUtil.getMin("3", "3", "3"));
assertEquals("3", NumUtil.getMin("22", "3", "22"));
}
