How to use

invoke

method

in

org.kie.dmn.feel.runtime.functions.twovaluelogic.NNModeFunction

public static List mode(List<Number> list) {
  return modeFunction.invoke(list).cata(e -> null, Function.identity());
}

  public FEELFnResult<List> invoke(@ParameterName("n") Object[] list) {
    if ( list == null ) {
      return FEELFnResult.ofResult( null );
    }
    return invoke( Arrays.asList( list ) );
  }
}

@Test
public void invokeArrayParamSupportedTypesWithNull() {
  FunctionTestUtil.assertResult(modeFunction.invoke(Arrays.asList(20, 30, null, (long) 20, null, BigDecimal.TEN)),
      Arrays.asList( BigDecimal.valueOf(20) ));
  FunctionTestUtil.assertResult(modeFunction.invoke(Arrays.asList(20, 30, null, (long) 20, 30, BigDecimal.TEN)),
      Arrays.asList( BigDecimal.valueOf(20), BigDecimal.valueOf(30) ));
  FunctionTestUtil.assertResult(modeFunction.invoke(Arrays.asList(null, null, null)),
      null);
}

@Test
public void invokeListParamSupportedTypesWithNull() {
  FunctionTestUtil.assertResult(modeFunction.invoke(Arrays.asList(20, 30, null, (long) 20, null, BigDecimal.TEN)),
      Arrays.asList( BigDecimal.valueOf(20) ));
  FunctionTestUtil.assertResult(modeFunction.invoke(Arrays.asList(20, 30, null, (long) 20, 30, BigDecimal.TEN)),
      Arrays.asList( BigDecimal.valueOf(20), BigDecimal.valueOf(30) ));
  FunctionTestUtil.assertResult(modeFunction.invoke(Arrays.asList(null, null, null)),
      null);
}

@Test
public void invokeListEmpty() {
  FunctionTestUtil.assertResult(modeFunction.invoke(Collections.emptyList()), null);
}

@Test
public void invokeListTypeHeterogenous() {
  FunctionTestUtil.assertResultError(modeFunction.invoke(Arrays.asList(1, "test")), InvalidParametersEvent.class);
}

@Test
public void invokeArrayTypeHeterogenous() {
  FunctionTestUtil.assertResultError(modeFunction.invoke(new Object[]{1, "test"}), InvalidParametersEvent.class);
}

@Test
public void invokeArrayEmpty() {
  FunctionTestUtil.assertResult(modeFunction.invoke(new Object[]{}), null);
}

@Test
public void invokeListNull() {
  FunctionTestUtil.assertResult(modeFunction.invoke((List) null), null);
}

@Test
public void invokeArrayNull() {
  FunctionTestUtil.assertResult(modeFunction.invoke((Object[]) null), null);
}