CollectSpliterators.flatMapToInt(
                    Arrays.spliterator(new Integer[] {1, 0, 1, 2, 3}),
                    (Integer i) -> i == 0 ? null : IntStream.of(i).spliterator(),
                    Spliterator.SIZED | Spliterator.DISTINCT | Spliterator.NONNULL,
                    4))
        .expect(1, 1, 2, 3);
  }

  public void testFlatMapToLong_nullStream() {
    SpliteratorTester.ofLong(
            () ->

        assertVersionOlder("1.1", "1.2");
        assertVersionOlder("1.0.0", "1.1");
        assertVersionOlder("1.1", "1.2.0");

        assertVersionOlder("1.1.2.alpha1", "1.1.2");
        assertVersionOlder("1.1.2.alpha1", "1.1.2.beta1");
        assertVersionOlder("1.1.2.beta1", "1.2");

        assertVersionOlder("1.0-alpha-1", "1.0");
        assertVersionOlder("1.0-alpha-1", "1.0-alpha-2");

        map sigbuild-r2.13-python3.8 2.13-python3.8
        map sigbuild-r2.13-python3.9 2.13-python3.9
        map sigbuild-r2.13-python3.10 2.13-python3.10
        map sigbuild-r2.13-python3.11 2.13-python3.11
        # TF 2.13 + Clang (containers are the same, but env vars in configs.bzl are different)
        map sigbuild-r2.13-clang 2.13-python3.9
        map sigbuild-r2.13-clang-python3.8 2.13-python3.8

  }

  /**
   * Returns a string containing the supplied {@code int} values separated by {@code separator}. For
   * example, {@code join("-", 1, 2, 3)} returns the string {@code "1-2-3"}.
   *
   * @param separator the text that should appear between consecutive values in the resulting string
   *     (but not at the start or end)

            ImmutableDoubleArray.of(1, 2),
            reserialize(ImmutableDoubleArray.of(1, 2)),
            ImmutableDoubleArray.of(0, 1, 2, 3).subArray(1, 3))
        .addEqualityGroup(ImmutableDoubleArray.of(1, 3))
        .addEqualityGroup(ImmutableDoubleArray.of(1, 2, 3))
        .testEquals();
  }

  /**
   * This is probably a weird and hacky way to test what we're really trying to test, but hey, it

            ImmutableMap.ofEntries(entry(1, 1)),
            map(1, 1))
        .addEqualityGroup(
            ImmutableMap.of(1, 1, 2, 2),
            ImmutableMap.builder().put(1, 1).put(2, 2).buildOrThrow(),
            ImmutableMap.ofEntries(entry(1, 1), entry(2, 2)),
            map(1, 1, 2, 2))
        .addEqualityGroup(
            ImmutableMap.of(1, 1, 2, 2, 3, 3),

        .addEqualityGroup(
            ImmutableIntArray.of(1, 2),
            reserialize(ImmutableIntArray.of(1, 2)),
            ImmutableIntArray.of(0, 1, 2, 3).subArray(1, 3))
        .addEqualityGroup(ImmutableIntArray.of(1, 3))
        .addEqualityGroup(ImmutableIntArray.of(1, 2, 3))
        .testEquals();
  }

  /**
   * This is probably a weird and hacky way to test what we're really trying to test, but hey, it

            ImmutableDoubleArray.of(1, 2),
            reserialize(ImmutableDoubleArray.of(1, 2)),
            ImmutableDoubleArray.of(0, 1, 2, 3).subArray(1, 3))
        .addEqualityGroup(ImmutableDoubleArray.of(1, 3))
        .addEqualityGroup(ImmutableDoubleArray.of(1, 2, 3))
        .testEquals();
  }

  /**
   * This is probably a weird and hacky way to test what we're really trying to test, but hey, it

  public void testToString() {
    SetMultimap<String, Integer> multimap = create();
    multimap.putAll("bar", asList(3, 1, 2));
    multimap.putAll("foo", asList(2, 3, 1, -1, 4));
    assertEquals("{bar=[1, 2, 3], foo=[-1, 1, 2, 3, 4]}", multimap.toString());
  }

  public void testOrderedGet() {
    TreeMultimap<String, Integer> multimap = createPopulate();
    assertThat(multimap.get("foo")).containsExactly(1, 3, 7).inOrder();

rich==13.7.1 \
    --hash=sha256:4edbae314f59eb482f54e9e30bf00d33350aaa94f4bfcd4e9e3110e64d0d7222 \
    --hash=sha256:9be308cb1fe2f1f57d67ce99e95af38a1e2bc71ad9813b0e247cf7ffbcc3a432
    # via keras-nightly
scipy==1.11.3 \
    --hash=sha256:00f325434b6424952fbb636506f0567898dca7b0f7654d48f1c382ea338ce9a3 \
    --hash=sha256:033c3fd95d55012dd1148b201b72ae854d5086d25e7c316ec9850de4fe776929 \
    --hash=sha256:0d3a136ae1ff0883fffbb1b05b0b2fea251cb1046