.createTestSuite());
    suite.addTestSuite(ImmutableListMultimapTest.class);
    return suite;
  }

  public void testBuilderWithExpectedKeysNegative() {
    assertThrows(
        IllegalArgumentException.class, () -> ImmutableListMultimap.builderWithExpectedKeys(-1));
  }

  public void testBuilderWithExpectedKeysZero() {