assertAbsent("a")
    assertValue("b", "bb", "bbbb")
    assertValue("c", "c", "c")

    // Causing the size to grow to 10 should evict nothing.
    set("d", "d", "d")
    cache.flush()
    assertThat(cache.size()).isEqualTo(10)
    assertAbsent("a")
    assertValue("b", "bb", "bbbb")
    assertValue("c", "c", "c")
    assertValue("d", "d", "d")

    assertFalse(TypeToken.of(wildcardType).isSupertypeOf(wildcardType));
    assertFalse(TypeToken.of(int[].class).isSupertypeOf(wildcardType));
  }

  public void testAssignableWildcardTypeParameterToClassTypeParameter() {
    TypeToken<?> wildcardType = new TypeToken<Iterable<? extends Object[]>>() {};
    assertFalse(new TypeToken<Iterable<Object[]>>() {}.isSupertypeOf(wildcardType));

    b = asList(4, 8, 15, 16, 23, 42);
    assertFalse(elementsEqual(a.iterator(), b.iterator()));
    assertFalse(elementsEqual(b.iterator(), a.iterator()));

    // Different lengths, one is empty.
    a = emptySet();
    b = asList(4, 8, 15, 16, 23, 42);
    assertFalse(elementsEqual(a.iterator(), b.iterator()));
    assertFalse(elementsEqual(b.iterator(), a.iterator()));
  }

  public void testPartition_badSize() {

    b = asList(4, 8, 15, 16, 23, 42);
    assertFalse(elementsEqual(a.iterator(), b.iterator()));
    assertFalse(elementsEqual(b.iterator(), a.iterator()));

    // Different lengths, one is empty.
    a = emptySet();
    b = asList(4, 8, 15, 16, 23, 42);
    assertFalse(elementsEqual(a.iterator(), b.iterator()));
    assertFalse(elementsEqual(b.iterator(), a.iterator()));
  }

  public void testPartition_badSize() {

    assertFalse(TypeToken.of(wildcardType).isSupertypeOf(wildcardType));
    assertFalse(TypeToken.of(int[].class).isSupertypeOf(wildcardType));
  }

  public void testAssignableWildcardTypeParameterToClassTypeParameter() {
    TypeToken<?> wildcardType = new TypeToken<Iterable<? extends Object[]>>() {};
    assertFalse(new TypeToken<Iterable<Object[]>>() {}.isSupertypeOf(wildcardType));

        getFinishedSignal.countDown();
      }
    }.start();

    computationStarted.await();
    cache.invalidate(getKey);
    cache.invalidate(refreshKey);
    assertFalse(map.containsKey(getKey));
    assertFalse(map.containsKey(refreshKey));

    // let computation complete
    letGetFinishSignal.countDown();
    getFinishedSignal.await();
    checkNothingLogged();