@Test
public void toLong() throws Exception {
assertThat(RubyUtils.toLong(null)).isNull();
assertThat(RubyUtils.toLong(2)).isEqualTo(2L);
assertThat(RubyUtils.toLong(3L)).isEqualTo(3L);
assertThat(RubyUtils.toLong("4")).isEqualTo(4L);
}
@Test
public void toLong_unexpected_class() throws Exception {
throwable.expect(IllegalArgumentException.class);
RubyUtils.toLong(false);
}