assertThat(SignedBytes.join(",", (byte) -128, (byte) -1)).isEqualTo("-128,-1");
  }

  @J2ktIncompatible // b/285319375
  public void testLexicographicalComparator() {
    List<byte[]> ordered =
        Arrays.asList(
            new byte[] {},
            new byte[] {LEAST},
            new byte[] {LEAST, LEAST},
            new byte[] {LEAST, (byte) 1},

                (int) 0x12345678L,
                (int) 0x5a4316b8L,
                (int) 0xff1a618bL,
                (int) 0L))
        .isEqualTo((int) 0L);
  }

  public void testLexicographicalComparator() {
    List<int[]> ordered =
        Arrays.asList(
            new int[] {},
            new int[] {LEAST},
            new int[] {LEAST, LEAST},
            new int[] {LEAST, (int) 1L},

    } else {
      assertThat(defaultComparator).isEqualTo(UnsignedBytes.lexicographicalComparatorJavaImpl());
    }
  }

  public void testLexicographicalComparator() {
    List<byte[]> ordered =
        Arrays.asList(
            new byte[] {},
            new byte[] {LEAST},
            new byte[] {LEAST, LEAST},
            new byte[] {LEAST, (byte) 1},

    assertThat(Chars.join(",", '1')).isEqualTo("1");
    assertThat(Chars.join(",", '1', '2')).isEqualTo("1,2");
    assertThat(Chars.join("", '1', '2', '3')).isEqualTo("123");
  }

  public void testLexicographicalComparator() {
    List<char[]> ordered =
        Arrays.asList(
            new char[] {},
            new char[] {LEAST},
            new char[] {LEAST, LEAST},
            new char[] {LEAST, (char) 1},

    assertThat(Doubles.join(",", 1.3, 2.4)).isEqualTo("1.3,2.4");
    assertThat(Doubles.join("", 1.4, 2.5, 3.6)).isEqualTo("1.42.53.6");
  }

  public void testLexicographicalComparator() {
    List<double[]> ordered =
        Arrays.asList(
            new double[] {},
            new double[] {LEAST},
            new double[] {LEAST, LEAST},
            new double[] {LEAST, 1.0},

    assertThat(Ints.join(",", (int) 1, (int) 2)).isEqualTo("1,2");
    assertThat(Ints.join("", (int) 1, (int) 2, (int) 3)).isEqualTo("123");
  }

  public void testLexicographicalComparator() {
    List<int[]> ordered =
        Arrays.asList(
            new int[] {},
            new int[] {LEAST},
            new int[] {LEAST, LEAST},
            new int[] {LEAST, (int) 1},

    assertThat(Booleans.join(",", false, true)).isEqualTo("false,true");
    assertThat(Booleans.join("", false, true, false)).isEqualTo("falsetruefalse");
  }

  public void testLexicographicalComparator() {
    List<boolean[]> ordered =
        Arrays.asList(
            new boolean[] {},
            new boolean[] {false},
            new boolean[] {false, false},
            new boolean[] {false, true},

    assertThat(Shorts.join(",", (short) 1, (short) 2)).isEqualTo("1,2");
    assertThat(Shorts.join("", (short) 1, (short) 2, (short) 3)).isEqualTo("123");
  }

  public void testLexicographicalComparator() {
    List<short[]> ordered =
        Arrays.asList(
            new short[] {},
            new short[] {LEAST},
            new short[] {LEAST, LEAST},
            new short[] {LEAST, (short) 1},