ArrayInspection_sizeOf_Test.java

/*
 * Created on Oct 2, 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.assertions;

import org.junit.Test;

import static org.junit.Assert.assertEquals;
import static org.junit.Assert.fail;

/**
 * Tests for {@link ArrayInspection#sizeOf(Object)}.
 *
 * @author Alex Ruiz
 */
public class ArrayInspection_sizeOf_Test {
  @Test(expected = NullPointerException.class)
  public void should_throw_error_if_array_is_null() {
    ArrayInspection.sizeOf(null);
  }

  @Test
  public void should_throw_error_if_object_is_not_array() {
    try {
      ArrayInspection.sizeOf("Hello");
      fail("Expecting IllegalArgumentException");
    } catch (IllegalArgumentException e) {
      assertEquals("The given object is not an array", e.getMessage());
    }
  }

  @Test
  public void should_return_size_of_array() {
    boolean[] array = {true, false};
    assertEquals(2, ArrayInspection.sizeOf(array));
  }
}