public RoundToDoubleTester roundUnnecessaryShouldThrow() {
      unnecessaryShouldThrow = true;
      return this;
    }

    public void test() {
      assertThat(expectedValues.keySet())
          .containsAtLeastElementsIn(EnumSet.complementOf(EnumSet.of(UNNECESSARY)));
      for (Map.Entry<RoundingMode, Double> entry : expectedValues.entrySet()) {
        RoundingMode mode = entry.getKey();
        Double expectation = entry.getValue();

    assertThat(invokableMethods).containsAtLeastElementsIn(accessibleObjectMethods);
    Class<?> genericDeclaration;
    try {
      genericDeclaration = Class.forName("java.lang.reflect.GenericDeclaration");
      ImmutableSet<String> genericDeclarationMethods =
          publicMethodSignatures(genericDeclaration, ImmutableSet.<String>of());
      assertThat(invokableMethods).containsAtLeastElementsIn(genericDeclarationMethods);

    assertThat(invokableMethods).containsAtLeastElementsIn(accessibleObjectMethods);
    Class<?> genericDeclaration;
    try {
      genericDeclaration = Class.forName("java.lang.reflect.GenericDeclaration");
      ImmutableSet<String> genericDeclarationMethods =
          publicMethodSignatures(genericDeclaration, ImmutableSet.<String>of());
      assertThat(invokableMethods).containsAtLeastElementsIn(genericDeclarationMethods);

      unnecessaryShouldThrow = true;
      return this;
    }

    public void test() {
      assertThat(expectedValues.keySet())
          .containsAtLeastElementsIn(EnumSet.complementOf(EnumSet.of(UNNECESSARY)));
      for (Map.Entry<RoundingMode, Double> entry : expectedValues.entrySet()) {
        RoundingMode mode = entry.getKey();
        Double expectation = entry.getValue();