* change the true min and max.
   */
  static class ManyValues {

    private final ImmutableList<Double> values;

    ManyValues(double[] values) {
      this.values = ImmutableList.copyOf(Doubles.asList(values));
    }

    ImmutableList<Double> asIterable() {
      return values;
    }

    double[] asArray() {
      return Doubles.toArray(values);
    }

      Map<K, V> map = new HashMap<K, V>();
      for (K key : keys) {
        map.put(key, localCache.getOrLoad(key));
      }
      return ImmutableMap.copyOf(map);
    }

    @Override
    public void refresh(K key) {
      throw new UnsupportedOperationException();
    }
  }

  /**

    INFINITE(Timeout.LARGE, Timeout.MAX);

    final ImmutableList<Timeout> timeouts;

    TimeoutsToUse(Timeout... timeouts) {
      this.timeouts = ImmutableList.copyOf(timeouts);
    }
  }

  /** Possible outcomes of calling any of the methods under test. */
  private enum Outcome {

    /** The method returned normally and is either void or returned true. */

    checkArgument(minLength >= 0, "Invalid minLength: %s", minLength);
    checkArgument(padding >= 0, "Invalid padding: %s", padding);
    return (array.length < minLength) ? Arrays.copyOf(array, minLength + padding) : array;
  }

  /**
   * Returns a string containing the supplied {@code char} values separated by {@code separator}.

    checkArgument(minLength >= 0, "Invalid minLength: %s", minLength);
    checkArgument(padding >= 0, "Invalid padding: %s", padding);
    return (array.length < minLength) ? Arrays.copyOf(array, minLength + padding) : array;
  }

  /**
   * Returns a string containing the supplied {@code short} values separated by {@code separator}.

    checkArgument(minLength >= 0, "Invalid minLength: %s", minLength);
    checkArgument(padding >= 0, "Invalid padding: %s", padding);
    return (array.length < minLength) ? Arrays.copyOf(array, minLength + padding) : array;
  }

  /**
   * Returns a string containing the supplied {@code short} values separated by {@code separator}.

    assertEquals(asList(5, 7, 8, 3), fromList);
    toList.clear();
    assertEquals(emptyList(), fromList);
  }

  @SafeVarargs
  private static <E> List<E> list(E... elements) {
    return ImmutableList.copyOf(elements);
  }

  public void testCartesianProduct_binary1x1() {
    assertThat(cartesianProduct(list(1), list(2))).contains(list(1, 2));
  }

  public void testCartesianProduct_binary1x2() {

    Iterator<TestDatum> merged =
        Iterators.mergeSorted(ImmutableList.of(left.iterator(), right.iterator()), comparator);

    ImmutableList<TestDatum> result = ImmutableList.copyOf(merged);

    assertThat(result)
        .containsExactly(
            new TestDatum("A", 2),
            new TestDatum("B", 1),
            new TestDatum("C", 1),
            new TestDatum("C", 2))

  }

  private static final class Signature {
    private final String name;
    private final ImmutableList<Class<?>> parameterTypes;

    Signature(Method method) {
      this(method.getName(), ImmutableList.copyOf(method.getParameterTypes()));
    }

    Signature(String name, ImmutableList<Class<?>> parameterTypes) {
      this.name = name;
      this.parameterTypes = parameterTypes;
    }

    @Override

    // Hash keys of the form {}, {0}, {0,1}, {0,1,2}... up to N=255,using 256-N as the seed
    for (int i = 0; i < 256; i++) {
      key[i] = (byte) i;
      int seed = 256 - i;
      byte[] hash = hashFunction.hash(Arrays.copyOf(key, i), seed);
      System.arraycopy(hash, 0, hashes, i * hashBytes, hash.length);
    }

    // Then hash the result array
    byte[] result = hashFunction.hash(hashes, 0);