@Test public void should_return_empty_String_if_array_to_join_is_null() { assertEquals("", Strings.join((String[]) null).with("|")); }
@Test public void should_join_using_delimeter() { assertEquals("Luke|Leia|Han", Strings.join("Luke", "Leia", "Han").with("|")); }
@Test public void should_throw_error_if_delimeter_is_null() { thrown.expect(NullPointerException.class); Strings.join(null, "Uno", "Dos").with(null); }