ImmutableMultimap.builderWithExpectedKeys(1);
    builder.put("key", "value");
    assertThat(builder.build().entries()).containsExactly(immutableEntry("key", "value"));
  }

  public void testBuilderWithExpectedValuesPerKeyNegative() {
    assertThrows(
        IllegalArgumentException.class, () -> ImmutableMultimap.builder().expectedValuesPerKey(-1));
  }

  public void testBuilderWithExpectedValuesPerKeyZero() {

    builder.put("key", "value");
    assertThat(builder.build().entries()).containsExactly(Maps.immutableEntry("key", "value"));
  }

  public void testBuilderWithExpectedValuesPerKeyNegative() {
    ImmutableSetMultimap.Builder<String, String> builder = ImmutableSetMultimap.builder();
    assertThrows(IllegalArgumentException.class, () -> builder.expectedValuesPerKey(-1));
  }

    builder.put("key", "value");
    assertThat(builder.build().entries()).containsExactly(Maps.immutableEntry("key", "value"));
  }

  public void testBuilderWithExpectedValuesPerKeyNegative() {
    ImmutableListMultimap.Builder<String, String> builder = ImmutableListMultimap.builder();
    assertThrows(IllegalArgumentException.class, () -> builder.expectedValuesPerKey(-1));
  }

    builder.put("key", "value");
    assertThat(builder.build().entries()).containsExactly(Maps.immutableEntry("key", "value"));
  }

  public void testBuilderWithExpectedValuesPerKeyNegative() {
    ImmutableListMultimap.Builder<String, String> builder = ImmutableListMultimap.builder();
    assertThrows(IllegalArgumentException.class, () -> builder.expectedValuesPerKey(-1));
  }