content: /*
   * Created on Aug 5, 2009
   *
   * 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.
   *
   * Copyright @2009-2013 the original author or authors.
   */
  package org.fest.swing.core;
  
  import static java.awt.event.InputEvent.ALT_GRAPH_MASK;
  import static java.awt.event.InputEvent.ALT_MASK;
  import static java.awt.event.InputEvent.CTRL_MASK;
  import static java.awt.event.InputEvent.META_MASK;
  import static java.awt.event.InputEvent.SHIFT_MASK;
  import static org.fest.assertions.Assertions.assertThat;
  import static org.fest.util.Lists.newArrayList;
  
  import java.util.Collection;
  import java.util.List;
  
  import org.junit.Test;
  import org.junit.runner.RunWith;
  import org.junit.runners.Parameterized;
  import org.junit.runners.Parameterized.Parameters;
  
  /**
   * Tests for {@link InputModifiers}.
   *
   * @author Alex Ruiz
   */
  @RunWith(Parameterized.class)
  public class InputModifiers_unify_Test {
    private final int[] modifiers;
  
    @Parameters
    public static Collection<Object[]> modifiers() {
      return newArrayList(new Object[][] {
          { new int[] { ALT_MASK, ALT_GRAPH_MASK, CTRL_MASK, META_MASK, SHIFT_MASK } },
          { new int[] { ALT_MASK, ALT_GRAPH_MASK, CTRL_MASK, META_MASK } },
          { new int[] { ALT_MASK, ALT_GRAPH_MASK, CTRL_MASK } }, { new int[] { ALT_MASK, ALT_GRAPH_MASK } },
          { new int[] { ALT_MASK } }
        });
    }
  
    public InputModifiers_unify_Test(int[] modifiers) {
      this.modifiers = modifiers;
    }
  
    @Test
    public void should_unify_modifiers() {
      int unified = InputModifiers.unify(modifiers);
      // asserts that contains only the passed modifiers
      for (int modifier : modifiers) {
        assertThat((unified & modifier) != 0).isTrue();
      }
      // asserts that does not contain modifiers that were not passed
      for (int modifier : missingModifiersIn(modifiers)) {
        assertThat((unified & modifier) != 0).isFalse();
      }
    }
  
    private List<Integer> missingModifiersIn(int[] existingModifiers) {
      List<Integer> allModifiers = allModifiers();
      for (Integer modifier : existingModifiers) {
        allModifiers.remove(modifier);
      }
      return allModifiers;
    }
  
    private List<Integer> allModifiers() {
      return newArrayList(ALT_MASK, ALT_GRAPH_MASK, CTRL_MASK, META_MASK, SHIFT_MASK);
    }
  }
  