@Test
void test_Tuple_equals() {

    Tuple same=new Tuple<>("a", "b");
    assertTrue(same.equals(same));
    assertFalse(same.equals(Integer.valueOf(0)));
    assertEquals(new Tuple<>("a", "b"), new Tuple<>("a", "b"));
    assertNotEquals(new Tuple<>("B", "b"), new Tuple<>("a", "b"));
    assertNotEquals(new Tuple<>("a", "B"), new Tuple<>("a", "b"));
}