Floats_assertIsNaN_Test.java

/*
 * Created on Mar 23, 2013
 *
 * 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 @2013 the original author or authors.
 */
package org.fest.assertions.internal;

import static org.fest.assertions.error.ShouldNotBeNull.shouldNotBeNull;
import static org.fest.assertions.test.TestFailures.expectedAssertionErrorNotThrown;
import static org.fest.test.ExpectedException.none;
import static org.mockito.Mockito.spy;

import org.fest.assertions.description.Description;
import org.fest.assertions.error.MessageFormatter;
import org.fest.test.ExpectedException;
import org.junit.Before;
import org.junit.Rule;
import org.junit.Test;

/**
 * @author Alex Ruiz
 * @author Yvonne Wang
 *
 */
public class Floats_assertIsNaN_Test {

  @Rule
  public ExpectedException thrown = none();

  private Floats floats;
  private Description description;
  private Failures failures;

  @Before
  public void setUp() {
    floats = new Floats();
    description = new TestDescription("testing");
    failures = spy(new Failures());
    floats.failures = failures;
  }

  @Test
  public void should_fail_if_actual_is_null() {
    thrown.expect(AssertionError.class, shouldNotBeNull().create(description));
    floats.assertIsNaN(description, null);
  }

  @Test
  public void should_fail_if_actual_is_not_NaN() {
    try {
      floats.assertIsNaN(description, 8f);
    } catch (org.junit.ComparisonFailure e) {
      MessageFormatter messageFormatter = MessageFormatter.instance();
      String message = messageFormatter.format(description, "expected:<%s> but was:<%s>", Float.NaN, 8f);
      e.getMessage().equalsIgnoreCase(message);
      return;
    }
    expectedAssertionErrorNotThrown();
  }

  @Test
  public void should_pass_if_actula_is_NaN() {
    floats.assertIsNaN(description, Float.NaN);
  }
}