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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.way.testable;

/**
 * @author [email protected] (Marcio Endo)
 */
public final class EqualityBuilder {

  private final AbstractTester tester;

  EqualityBuilder(AbstractTester tester) {
    this.tester = tester;
  }

  @SuppressWarnings("unchecked")
  public Equality test(T a, Object b) {
    try {
      if (b == null) {
        return Equality.nullValue();
      }

      T that = (T) b;
      return tester.test(a, that);
    } catch (ClassCastException e) {
      Class typeA = a.getClass();
      Class typeB = b.getClass();
      return Equality.typeNotEqual(typeA, typeB);
    }
  }

}