@Test
    void requireThatEqualsWorksAsExpected() {
        Headers lhs = new Headers();
        Headers rhs = new Headers();
        assertEquals(lhs, rhs);
        lhs.add("foo", "bar");
        assertNotEquals(lhs, rhs);
        rhs.add("foo", "bar");
        assertEquals(lhs, rhs);
    }
@author Simon Thoresen Hult
@author Einar M R Rosenvinge
application/src/test/java/com/yahoo/application/container/handler/HeadersTestCase.java