/**
  * Returns a composed {@link TriDoubleConsumer} that first applies the {@code before} functions to
  * its input, and then applies this consumer to the result. If evaluation of either operation
  * throws an exception, it is relayed to the caller of the composed operation. This method is just
  * convenience, to provide the ability to execute an operation which accepts {@code double} input,
  * before this primitive consumer is executed.
  *
  * @param before1 The first function to apply before this consumer is applied
  * @param before2 The second function to apply before this consumer is applied
  * @param before3 The third function to apply before this consumer is applied
  * @return A composed {@code TriDoubleConsumer} that first applies the {@code before} functions to
  *     its input, and then applies this consumer to the result.
  * @throws NullPointerException If given argument is {@code null}
  * @implSpec The input argument of this method is a able to handle primitive values. In this case
  *     this is {@code double}.
  */
 @Nonnull
 default TriDoubleConsumer composeFromDouble(
     @Nonnull final DoubleFunction<? extends T> before1,
     @Nonnull final DoubleToIntFunction before2,
     @Nonnull final DoubleToIntFunction before3) {
   Objects.requireNonNull(before1);
   Objects.requireNonNull(before2);
   Objects.requireNonNull(before3);
   return (value1, value2, value3) ->
       accept(before1.apply(value1), before2.applyAsInt(value2), before3.applyAsInt(value3));
 }
  private <E extends RuntimeException> void assertDoubleToIntFunction(
      DoubleToIntFunction test, Class<E> type) {
    assertNotNull(test);
    try {
      test.applyAsInt(0.0);
      fail();
    } catch (RuntimeException e) {
      assertException(type, e, "0.0");
    }

    try {
      DoubleStream.of(1.0, 2.0, 3.0).mapToInt(test);
    } catch (RuntimeException e) {
      assertException(type, e, "1.0");
    }
  }