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/*
 * Copyright 2015 Objectos, Fábrica de Software LTDA.
 *
 * Licensed under the Apache License, Version 2.0 (the "License"); you may not
 * use this file except in compliance with the License. You may obtain a copy of
 * the License at
 *
 * http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
 * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
 * License for the specific language governing permissions and limitations under
 * the License.
 */
package br.com.objectos.testable;

/**
 * @author [email protected] (Marcio Endo)
 */
public interface Equality {

  static  EqualityBuilder using(AbstractTester tester) {
    return new EqualityBuilder<>(tester);
  }

  static Equality elementMissing(int index, Object expected) {
    return ElementMissing.of(index, expected);
  }

  static Equality elementNotEqual(int index, Object a, Object b) {
    return ElementNotEqual.of(index, a, b);
  }

  static Equality elementNotExpected(int index, Object found) {
    return ElementNotExpected.of(index, found);
  }

  static Equality equal() {
    return Equal.INSTANCE;
  }

  static Equality fail(String expected, String found) {
    return new Fail(expected, found);
  }

  static Equality instanceOf(Object that, Class type) {
    if (that == null) {
      return nullValue();
    }

    if (!type.isInstance(that)) {
      return typeNotEqual(type, that.getClass());
    }

    return equal();
  }

  static Equality notEqual(String name, String a, String b) {
    return new NotEqual(name, a, b);
  }

  static Equality nullValue() {
    return NullValue.INSTANCE;
  }

  static Equality typeNotEqual(Class typeA, Class typeB) {
    return new TypeNotEqual(typeA, typeB);
  }

  void accept(Reporter reporter);

  boolean isEqual();

}