try {
      Utf8.encodedLength(invalidString);
      fail();
    } catch (IllegalArgumentException expected) {
      assertThat(expected)
          .hasMessageThat()
          .isEqualTo("Unpaired surrogate at index " + invalidCodePointIndex);
    }
  }

  // 128 - [chars 0x0000 to 0x007f]

        assertThrows(
            AssertionFailedError.class,
            () ->
                new EqualsTester().addEqualityGroup(new EqualsBasedOnToString("foo")).testEquals());
    assertThat(e).hasMessageThat().contains("toString representation");
  }

  private static void assertErrorMessage(Throwable e, String message) {
    // TODO(kevinb): use a Truth assertion here
    if (!e.getMessage().contains(message)) {

    IllegalArgumentException expected =
        assertThrows(
            IllegalArgumentException.class,
            () -> builder.addAll(nCopies(Integer.MAX_VALUE - 50, "a")));
    assertThat(expected)
        .hasMessageThat()
        .contains("cannot store more than Integer.MAX_VALUE elements");
  }

    IllegalArgumentException expected =
        assertThrows(
            IllegalArgumentException.class,
            () -> builder.addAll(nCopies(Integer.MAX_VALUE - 50, "a")));
    assertThat(expected)
        .hasMessageThat()
        .contains("cannot store more than Integer.MAX_VALUE elements");
  }

            () -> {
              BloomFilter<String> unused =
                  BloomFilter.create(HashTestUtils.BAD_FUNNEL, Integer.MAX_VALUE, Double.MIN_VALUE);
            });
    assertThat(expected)
        .hasMessageThat()
        .isEqualTo("Could not create BloomFilter of 3327428144502 bits");
  }

  @AndroidIncompatible // OutOfMemoryError
  public void testLargeNumberOfInsertions() {