}

  public void testConstructor_returnType() throws Exception {
    assertEquals(Prepender.class, Prepender.constructor().getReturnType().getType());
  }

  private static class WithConstructorAndTypeParameter<T> {
    @SuppressWarnings("unused") // by reflection
    <X> WithConstructorAndTypeParameter() {}
  }

  public void testConstructor_returnType_hasTypeParameter() throws Exception {

  public void testConstructor_classObject() {
    String toTest = MoreObjects.toStringHelper(TestClass.class).toString();
    assertEquals("TestClass{}", toTest);
  }

  public void testConstructorLenient_classObject() {
    String toTest = MoreObjects.toStringHelper(TestClass.class).toString();
    assertTrue(toTest, toTest.matches(".*\\{\\}"));
  }

  public void testConstructor_stringObject() {

  }

  public void testConstructor_returnType() throws Exception {
    assertEquals(Prepender.class, Prepender.constructor().getReturnType().getType());
  }

  private static class WithConstructorAndTypeParameter<T> {
    @SuppressWarnings("unused") // by reflection
    <X> WithConstructorAndTypeParameter() {}
  }

  public void testConstructor_returnType_hasTypeParameter() throws Exception {

  }

  /**
   * Runs {@link #testConstructor} on every constructor in class {@code c} that has at least {@code
   * minimalVisibility}.
   */
  public void testConstructors(Class<?> c, Visibility minimalVisibility) {
    for (Constructor<?> constructor : c.getDeclaredConstructors()) {
      if (minimalVisibility.isVisible(constructor) && !isIgnored(constructor)) {
        testConstructor(constructor);
      }
    }
  }

  public void testConstructor_classObject() {
    String toTest = MoreObjects.toStringHelper(TestClass.class).toString();
    assertEquals("TestClass{}", toTest);
  }

  public void testConstructorLenient_classObject() {
    String toTest = MoreObjects.toStringHelper(TestClass.class).toString();
    assertTrue(toTest, toTest.matches(".*\\{\\}"));
  }

  public void testConstructor_stringObject() {

  }

  /**
   * Runs {@link #testConstructor} on every constructor in class {@code c} that has at least {@code
   * minimalVisibility}.
   */
  public void testConstructors(Class<?> c, Visibility minimalVisibility) {
    for (Constructor<?> constructor : c.getDeclaredConstructors()) {
      if (minimalVisibility.isVisible(constructor) && !isIgnored(constructor)) {
        testConstructor(constructor);
      }
    }
  }

  }

  /** constructor initializes to given value */
  public void testConstructor() {
    for (double x : VALUES) {
      AtomicDouble a = new AtomicDouble(x);
      assertBitEquals(x, a.get());
    }
  }

  /** default constructed initializes to zero */
  public void testConstructor2() {
    AtomicDouble a = new AtomicDouble();
    assertBitEquals(0.0, a.get());
  }

  }

  public void testConstructor_notDeclaredByType() throws NoSuchMethodException {
    Constructor<String> constructor = String.class.getConstructor();
    assertThrows(
        IllegalArgumentException.class, () -> TypeToken.of(Object.class).constructor(constructor));
  }

  public void testConstructor_declaredBySuperclass() throws NoSuchMethodException {

  }

  /** constructor initializes to given value */
  public void testConstructor() {
    for (double x : VALUES) {
      AtomicDouble a = new AtomicDouble(x);
      assertBitEquals(x, a.get());
    }
  }

  /** default constructed initializes to zero */
  public void testConstructor2() {
    AtomicDouble a = new AtomicDouble();
    assertBitEquals(0.0, a.get());
  }

    assertEquals(Double.doubleToRawLongBits(x), Double.doubleToRawLongBits(y));
  }

  /** constructor creates array of given size with all elements zero */
  public void testConstructor() {
    AtomicDoubleArray aa = new AtomicDoubleArray(SIZE);
    for (int i = 0; i < SIZE; i++) {
      assertBitEquals(0.0, aa.get(i));
    }
  }

  /** constructor with null array throws NPE */