new EqualsTester()
        .addEqualityGroup(FALSE, Predicates.alwaysFalse())
        .addEqualityGroup(TRUE)
        .addEqualityGroup(Predicates.not(FALSE))
        .testEquals();

    new EqualsTester()
        .addEqualityGroup(Predicates.isNull(), Predicates.isNull())
        .addEqualityGroup(Predicates.notNull())
        .addEqualityGroup(Predicates.not(Predicates.isNull()))
        .testEquals();

            MediaType.parse("text/plain; charset=\tUTF-8"))
        .addEqualityGroup(MediaType.parse("text/plain; charset=utf-8; charset=utf-8"))
        .addEqualityGroup(
            MediaType.create("text", "plain").withParameter("a", "value"),
            MediaType.create("text", "plain").withParameter("A", "value"))
        .addEqualityGroup(
            MediaType.create("text", "plain").withParameter("a", "VALUE"),

    private final EqualsTester tester = new EqualsTester();

    TypeVariableEqualsTester addEqualityGroup(Type jvmType, Type... types) {
      if (Types.NativeTypeVariableEquals.NATIVE_TYPE_VARIABLE_ONLY) {
        tester.addEqualityGroup(jvmType);
        tester.addEqualityGroup((Object[]) types);
      } else {
        tester.addEqualityGroup(Lists.asList(jvmType, types).toArray());
      }
      return this;
    }

    private final EqualsTester tester = new EqualsTester();

    TypeVariableEqualsTester addEqualityGroup(Type jvmType, Type... types) {
      if (Types.NativeTypeVariableEquals.NATIVE_TYPE_VARIABLE_ONLY) {
        tester.addEqualityGroup(jvmType);
        tester.addEqualityGroup((Object[]) types);
      } else {
        tester.addEqualityGroup(Lists.asList(jvmType, types).toArray());
      }
      return this;
    }

    new EqualsTester()
        .addEqualityGroup(FALSE, Predicates.alwaysFalse())
        .addEqualityGroup(TRUE)
        .addEqualityGroup(Predicates.not(FALSE))
        .testEquals();

    new EqualsTester()
        .addEqualityGroup(Predicates.isNull(), Predicates.isNull())
        .addEqualityGroup(Predicates.notNull())
        .addEqualityGroup(Predicates.not(Predicates.isNull()))
        .testEquals();

    new EqualsTester()
        .addEqualityGroup(f, Functions.constant("correct"))
        .addEqualityGroup(Functions.constant("incorrect"))
        .addEqualityGroup(Functions.toStringFunction())
        .addEqualityGroup(g)
        .testEquals();

    new EqualsTester()
        .addEqualityGroup(g, Functions.<@Nullable Object>constant(null))
        .addEqualityGroup(Functions.constant("incorrect"))

  private static final File FILE = new File(".");

  public void testEquals() {
    new EqualsTester()
        .addEqualityGroup(classInfo(ClassPathTest.class), classInfo(ClassPathTest.class))
        .addEqualityGroup(classInfo(Test.class), classInfo(Test.class, getClass().getClassLoader()))
        .addEqualityGroup(
            new ResourceInfo(FILE, "a/b/c.txt", getClass().getClassLoader()),

    new EqualsTester()
        .addEqualityGroup(A.constructor(), A.constructor())
        .addEqualityGroup(A.method("privateMethod"), A.method("privateMethod"))
        .addEqualityGroup(A.method("publicFinalMethod"))
        .addEqualityGroup(Prepender.constructor(), Prepender.constructor())
        .addEqualityGroup(Prepender.constructor(String.class, int.class))

    new EqualsTester()
        .addEqualityGroup(A.constructor(), A.constructor())
        .addEqualityGroup(A.method("privateMethod"), A.method("privateMethod"))
        .addEqualityGroup(A.method("publicFinalMethod"))
        .addEqualityGroup(Prepender.constructor(), Prepender.constructor())
        .addEqualityGroup(Prepender.constructor(String.class, int.class))

  }

  public void testEquals() {
    new EqualsTester()
        .addEqualityGroup(
            EnumBiMap.create(ImmutableMap.of(Currency.DOLLAR, Country.CANADA)),
            EnumBiMap.create(ImmutableMap.of(Currency.DOLLAR, Country.CANADA)))
        .addEqualityGroup(EnumBiMap.create(ImmutableMap.of(Currency.DOLLAR, Country.CHILE)))
        .addEqualityGroup(EnumBiMap.create(ImmutableMap.of(Currency.FRANC, Country.CANADA)))