Ejemplo n.º 1
0
 /**
  * Assert that the given object is lenient equals by ignoring null fields value on other object.
  *
  * @param info contains information about the assertion.
  * @param actual the given object.
  * @param other the object to compare {@code actual} to.
  * @throws NullPointerException if the actual type is {@code null}.
  * @throws NullPointerException if the other type is {@code null}.
  * @throws AssertionError if the actual and the given object are not lenient equals.
  * @throws AssertionError if the other object is not an instance of the actual type.
  */
 public <A> void assertIsLenientEqualsToByIgnoringNullFields(
     AssertionInfo info, A actual, A other) {
   assertIsInstanceOf(info, other, actual.getClass());
   List<String> fieldsNames = new LinkedList<String>();
   List<Object> values = new LinkedList<Object>();
   List<String> nullFields = new LinkedList<String>();
   for (Field field : actual.getClass().getDeclaredFields()) {
     try {
       Object otherFieldValue =
           propertySupport.propertyValue(field.getName(), field.getType(), other);
       if (otherFieldValue != null) {
         Object actualFieldValue =
             propertySupport.propertyValue(field.getName(), field.getType(), actual);
         if (!otherFieldValue.equals(actualFieldValue)) {
           fieldsNames.add(field.getName());
           values.add(otherFieldValue);
         }
       } else {
         nullFields.add(field.getName());
       }
     } catch (IntrospectionError e) {
       // Not readeable field, skip.
     }
   }
   if (fieldsNames.isEmpty()) return;
   throw failures.failure(
       info, shouldBeLenientEqualByIgnoring(actual, fieldsNames, values, nullFields));
 }
Ejemplo n.º 2
0
 /**
  * Verifies that the actual value is not exactly a instance of given type.
  *
  * @param info contains information about the assertion.
  * @param actual the given object.
  * @param type the type to check the actual value against.
  * @throws AssertionError if the actual is exactly a instance of given type.
  * @throws NullPointerException if the actual value is null.
  * @throws NullPointerException if the given object is null.
  */
 public void assertIsNotExactlyInstanceOf(AssertionInfo info, Object actual, Class<?> type) {
   assertNotNull(info, actual);
   if (type == null) throw new NullPointerException("The given type should not be null");
   Class<?> current = actual.getClass();
   if (!type.equals(current)) return;
   throw failures.failure(info, shouldNotBeExactlyInstance(actual, type));
 }
Ejemplo n.º 3
0
 /**
  * Assert that the given object is lenient equals by ignoring fields.
  *
  * @param info contains information about the assertion.
  * @param actual the given object.
  * @param other the object to compare {@code actual} to.
  * @param fields the fields to ignore in comparison
  * @throws NullPointerException if the actual type is {@code null}.
  * @throws NullPointerException if the other type is {@code null}.
  * @throws AssertionError if the actual and the given object are not lenient equals.
  * @throws AssertionError if the other object is not an instance of the actual type.
  */
 public <A> void assertIsLenientEqualsToByIgnoringFields(
     AssertionInfo info, A actual, A other, String... fields) {
   assertIsInstanceOf(info, other, actual.getClass());
   List<String> fieldsNames = new LinkedList<String>();
   List<Object> expectedValues = new LinkedList<Object>();
   Set<String> ignoredFields = set(fields);
   for (Field field : actual.getClass().getDeclaredFields()) {
     try {
       if (!ignoredFields.contains(field.getName())) {
         String fieldName = field.getName();
         Object actualFieldValue = propertySupport.propertyValue(fieldName, Object.class, actual);
         Object otherFieldValue = propertySupport.propertyValue(fieldName, Object.class, other);
         if (!org.fest.util.Objects.areEqual(actualFieldValue, otherFieldValue)) {
           fieldsNames.add(fieldName);
           expectedValues.add(otherFieldValue);
         }
       }
     } catch (IntrospectionError e) {
       // Not readeable field, skip.
     }
   }
   if (fieldsNames.isEmpty()) return;
   throw failures.failure(
       info, shouldBeLenientEqualByIgnoring(actual, fieldsNames, expectedValues, list(fields)));
 }
Ejemplo n.º 4
0
 /**
  * Verifies that the actual value does not have the same class as the given object.
  *
  * @param info contains information about the assertion.
  * @param actual the given object.
  * @param other the object to check type against.
  * @throws AssertionError if the actual has the same type has the given object.
  * @throws NullPointerException if the actual value is null.
  * @throws NullPointerException if the given object is null.
  */
 public void assertDoesNotHaveSameClassAs(AssertionInfo info, Object actual, Object other) {
   assertNotNull(info, actual);
   if (other == null) throw new NullPointerException("The given object should not be null");
   Class<?> actualClass = actual.getClass();
   Class<?> otherClass = other.getClass();
   if (!actualClass.equals(otherClass)) return;
   throw failures.failure(info, shouldNotHaveSameClass(actual, other));
 }
Ejemplo n.º 5
0
 /**
  * Verifies that the given object is not an instance of any of the given types.
  *
  * @param info contains information about the assertion.
  * @param actual the given object.
  * @param types the types to check the given object against.
  * @throws NullPointerException if the given array is {@code null}.
  * @throws IllegalArgumentException if the given array is empty.
  * @throws NullPointerException if the given array has {@code null} elements.
  * @throws AssertionError if the given object is {@code null}.
  * @throws AssertionError if the given object is an instance of any of the given types.
  */
 public void assertIsNotInstanceOfAny(AssertionInfo info, Object actual, Class<?>[] types) {
   checkIsNotNullAndIsNotEmpty(types);
   assertNotNull(info, actual);
   boolean found = false;
   for (Class<?> type : types) {
     if (type == null) {
       String format = "The given array of types:<%s> should not have null elements";
       throw new NullPointerException(String.format(format, toStringOf(types)));
     }
     if (type.isInstance(actual)) {
       found = true;
       break;
     }
   }
   if (!found) return;
   throw failures.failure(info, shouldNotBeInstanceOfAny(actual, types));
 }
Ejemplo n.º 6
0
 /**
  * Assert that the given object is lenient equals to other object by comparing given fields value
  * only.
  *
  * @param info contains information about the assertion.
  * @param actual the given object.
  * @param other the object to compare {@code actual} to.
  * @param fields accepted fields
  * @throws NullPointerException if the actual type is {@code null}.
  * @throws NullPointerException if the other type is {@code null}.
  * @throws AssertionError if the actual and the given object are not lenient equals.
  * @throws AssertionError if the other object is not an instance of the actual type.
  * @throws IntrospectionError if a field does not exist in actual.
  */
 public <A> void assertIsLenientEqualsToByAcceptingFields(
     AssertionInfo info, A actual, A other, String... fields) {
   assertIsInstanceOf(info, other, actual.getClass());
   List<String> rejectedFieldsNames = new LinkedList<String>();
   List<Object> expectedValues = new LinkedList<Object>();
   for (String fieldName : fields) {
     Object actualFieldValue = propertySupport.propertyValue(fieldName, Object.class, actual);
     Object otherFieldValue = propertySupport.propertyValue(fieldName, Object.class, other);
     if (!(actualFieldValue == otherFieldValue
         || (actualFieldValue != null && actualFieldValue.equals(otherFieldValue)))) {
       rejectedFieldsNames.add(fieldName);
       expectedValues.add(otherFieldValue);
     }
   }
   if (rejectedFieldsNames.isEmpty()) return;
   throw failures.failure(
       info,
       shouldBeLenientEqualByAccepting(actual, rejectedFieldsNames, expectedValues, list(fields)));
 }
Ejemplo n.º 7
0
 /**
  * Asserts that the given object is not present in the given collection.
  *
  * @param info contains information about the assertion.
  * @param actual the given object.
  * @param values the given collection.
  * @throws NullPointerException if the given iterable is {@code null}.
  * @throws IllegalArgumentException if the given collection is empty.
  * @throws AssertionError if the given object is present in the given collection.
  */
 public <A> void assertIsNotIn(AssertionInfo info, A actual, Iterable<? extends A> values) {
   checkIsNotNullAndNotEmpty(values);
   assertNotNull(info, actual);
   if (!isActualIn(actual, values)) return;
   throw failures.failure(info, shouldNotBeIn(actual, values, comparisonStrategy));
 }
Ejemplo n.º 8
0
 /**
  * Asserts that the given object is not present in the given array.
  *
  * @param info contains information about the assertion.
  * @param actual the given object.
  * @param values the given array.
  * @throws NullPointerException if the given array is {@code null}.
  * @throws IllegalArgumentException if the given array is empty.
  * @throws AssertionError if the given object is present in the given array.
  */
 public void assertIsNotIn(AssertionInfo info, Object actual, Object[] values) {
   checkIsNotNullAndNotEmpty(values);
   assertNotNull(info, actual);
   if (!isItemInArray(actual, values)) return;
   throw failures.failure(info, shouldNotBeIn(actual, values, comparisonStrategy));
 }
Ejemplo n.º 9
0
 /**
  * Asserts that two objects do not refer to the same object.
  *
  * @param info contains information about the assertion.
  * @param actual the given object.
  * @param other the object to compare {@code actual} to.
  * @throws AssertionError if the given objects refer to the same object.
  */
 public void assertNotSame(AssertionInfo info, Object actual, Object other) {
   if (actual != other) return;
   throw failures.failure(info, shouldNotBeSame(actual));
 }
Ejemplo n.º 10
0
 /**
  * Asserts that two objects refer to the same object.
  *
  * @param info contains information about the assertion.
  * @param actual the given object.
  * @param expected the expected object.
  * @throws AssertionError if the given objects do not refer to the same object.
  */
 public void assertSame(AssertionInfo info, Object actual, Object expected) {
   if (actual == expected) return;
   throw failures.failure(info, shouldBeSame(actual, expected));
 }
Ejemplo n.º 11
0
 /**
  * Asserts that the given object is {@code null}.
  *
  * @param info contains information about the assertion.
  * @param actual the given object.
  * @throws AssertionError if the given object is not {@code null}.
  */
 public void assertNull(AssertionInfo info, Object actual) {
   if (actual == null) return;
   throw failures.failure(info, shouldBeEqual(actual, null, comparisonStrategy));
 }
Ejemplo n.º 12
0
 /**
  * Asserts that two objects are not equal.
  *
  * @param info contains information about the assertion.
  * @param actual the given object.
  * @param other the object to compare {@code actual} to.
  * @throws AssertionError if {@code actual} is equal to {@code other}.
  */
 public void assertNotEqual(AssertionInfo info, Object actual, Object other) {
   if (!areEqual(actual, other)) return;
   throw failures.failure(info, shouldNotBeEqual(actual, other, comparisonStrategy));
 }
Ejemplo n.º 13
0
 /**
  * Asserts that two objects are equal.
  *
  * @param info contains information about the assertion.
  * @param actual the "actual" object.
  * @param expected the "expected" object.
  * @throws AssertionError if {@code actual} is not equal to {@code expected}. This method will
  *     throw a {@code org.junit.ComparisonFailure} instead if JUnit is in the classpath and the
  *     given objects are not equal.
  */
 public void assertEqual(AssertionInfo info, Object actual, Object expected) {
   if (areEqual(actual, expected)) return;
   throw failures.failure(info, shouldBeEqual(actual, expected, comparisonStrategy));
 }
Ejemplo n.º 14
0
 /**
  * Verifies that the actual value type is not in given types.
  *
  * @param info contains information about the assertion.
  * @param actual the given object.
  * @param types the types to check the actual value against.
  * @throws AssertionError if the actual value type is in given type.
  * @throws NullPointerException if the actual value is null.
  * @throws NullPointerException if the given types is null.
  */
 public void assertIsNotOfAnyClassIn(AssertionInfo info, Object actual, Class<?>[] types) {
   assertNotNull(info, actual);
   if (types == null) throw new NullPointerException("The given types should not be null");
   if (!isItemInArray(actual.getClass(), types)) return;
   throw failures.failure(info, shouldNotBeOfClassIn(actual, types));
 }
Ejemplo n.º 15
0
 /**
  * Asserts that the given object is not {@code null}.
  *
  * @param info contains information about the assertion.
  * @param actual the given object.
  * @throws AssertionError if the given object is {@code null}.
  */
 public void assertNotNull(AssertionInfo info, Object actual) {
   if (actual != null) return;
   throw failures.failure(info, shouldNotBeNull());
 }
Ejemplo n.º 16
0
/**
 * Reusable assertions for {@code Object}s.
 *
 * @author Yvonne Wang
 * @author Alex Ruiz
 * @author Nicolas François
 * @author Mikhail Mazursky
 */
public class Objects {

  private static final Objects INSTANCE = new Objects();

  /**
   * Returns the singleton instance of this class based on {@link StandardComparisonStrategy}.
   *
   * @return the singleton instance of this class based on {@link StandardComparisonStrategy}.
   */
  public static Objects instance() {
    return INSTANCE;
  }

  @VisibleForTesting Failures failures = Failures.instance();

  @VisibleForTesting PropertySupport propertySupport = PropertySupport.instance();

  private final ComparisonStrategy comparisonStrategy;

  @VisibleForTesting
  Objects() {
    this(StandardComparisonStrategy.instance());
  }

  public Objects(ComparisonStrategy comparisonStrategy) {
    this.comparisonStrategy = comparisonStrategy;
  }

  @VisibleForTesting
  public Comparator<?> getComparator() {
    if (comparisonStrategy instanceof ComparatorBasedComparisonStrategy) {
      return ((ComparatorBasedComparisonStrategy) comparisonStrategy).getComparator();
    }
    return null;
  }

  /**
   * Verifies that the given object is an instance of the given type.
   *
   * @param info contains information about the assertion.
   * @param actual the given object.
   * @param type the type to check the given object against.
   * @throws NullPointerException if the given type is {@code null}.
   * @throws AssertionError if the given object is {@code null}.
   * @throws AssertionError if the given object is not an instance of the given type.
   */
  public void assertIsInstanceOf(AssertionInfo info, Object actual, Class<?> type) {
    if (type == null) throw new NullPointerException("The given type should not be null");
    assertNotNull(info, actual);
    if (type.isInstance(actual)) return;
    throw failures.failure(info, shouldBeInstance(actual, type));
  }

  /**
   * Verifies that the given object is an instance of any of the given types.
   *
   * @param info contains information about the assertion.
   * @param actual the given object.
   * @param types the types to check the given object against.
   * @throws NullPointerException if the given array is {@code null}.
   * @throws IllegalArgumentException if the given array is empty.
   * @throws NullPointerException if the given array has {@code null} elements.
   * @throws AssertionError if the given object is {@code null}.
   * @throws AssertionError if the given object is not an instance of any of the given types.
   */
  public void assertIsInstanceOfAny(AssertionInfo info, Object actual, Class<?>[] types) {
    checkIsNotNullAndIsNotEmpty(types);
    assertNotNull(info, actual);
    boolean found = false;
    for (Class<?> type : types) {
      if (type == null) {
        String format = "The given array of types:<%s> should not have null elements";
        throw new NullPointerException(String.format(format, toStringOf(types)));
      }
      if (type.isInstance(actual)) {
        found = true;
        break;
      }
    }
    if (found) return;
    throw failures.failure(info, shouldBeInstanceOfAny(actual, types));
  }

  /**
   * Verifies that the given object is not an instance of the given type.
   *
   * @param info contains information about the assertion.
   * @param actual the given object.
   * @param type the type to check the given object against.
   * @throws NullPointerException if the given type is {@code null}.
   * @throws AssertionError if the given object is {@code null}.
   * @throws AssertionError if the given object is an instance of the given type.
   */
  public void assertIsNotInstanceOf(AssertionInfo info, Object actual, Class<?> type) {
    if (type == null) throw new NullPointerException("The given type should not be null");
    assertNotNull(info, actual);
    if (!type.isInstance(actual)) return;
    throw failures.failure(info, shouldNotBeInstance(actual, type));
  }

  /**
   * Verifies that the given object is not an instance of any of the given types.
   *
   * @param info contains information about the assertion.
   * @param actual the given object.
   * @param types the types to check the given object against.
   * @throws NullPointerException if the given array is {@code null}.
   * @throws IllegalArgumentException if the given array is empty.
   * @throws NullPointerException if the given array has {@code null} elements.
   * @throws AssertionError if the given object is {@code null}.
   * @throws AssertionError if the given object is an instance of any of the given types.
   */
  public void assertIsNotInstanceOfAny(AssertionInfo info, Object actual, Class<?>[] types) {
    checkIsNotNullAndIsNotEmpty(types);
    assertNotNull(info, actual);
    boolean found = false;
    for (Class<?> type : types) {
      if (type == null) {
        String format = "The given array of types:<%s> should not have null elements";
        throw new NullPointerException(String.format(format, toStringOf(types)));
      }
      if (type.isInstance(actual)) {
        found = true;
        break;
      }
    }
    if (!found) return;
    throw failures.failure(info, shouldNotBeInstanceOfAny(actual, types));
  }

  /**
   * Verifies that the actual value has the same class as the given object.
   *
   * @param info contains information about the assertion.
   * @param actual the given object.
   * @throws AssertionError if the actual has not the same type has the given object.
   * @throws NullPointerException if the actual value is null.
   * @throws NullPointerException if the given object is null.
   */
  public void assertHasSameClassAs(AssertionInfo info, Object actual, Object other) {
    assertNotNull(info, actual);
    if (other == null) throw new NullPointerException("The given object should not be null");
    Class<?> actualClass = actual.getClass();
    Class<?> otherClass = other.getClass();
    if (actualClass.equals(otherClass)) return;
    throw failures.failure(info, shouldHaveSameClass(actual, other));
  }

  /**
   * Verifies that the actual value does not have the same class as the given object.
   *
   * @param info contains information about the assertion.
   * @param actual the given object.
   * @param other the object to check type against.
   * @throws AssertionError if the actual has the same type has the given object.
   * @throws NullPointerException if the actual value is null.
   * @throws NullPointerException if the given object is null.
   */
  public void assertDoesNotHaveSameClassAs(AssertionInfo info, Object actual, Object other) {
    assertNotNull(info, actual);
    if (other == null) throw new NullPointerException("The given object should not be null");
    Class<?> actualClass = actual.getClass();
    Class<?> otherClass = other.getClass();
    if (!actualClass.equals(otherClass)) return;
    throw failures.failure(info, shouldNotHaveSameClass(actual, other));
  }

  /**
   * Verifies that the actual value is exactly a instance of given type.
   *
   * @param info contains information about the assertion.
   * @param actual the given object.
   * @param type the type to check the actual value against.
   * @throws AssertionError if the actual is not exactly a instance of given type.
   * @throws NullPointerException if the actual value is null.
   * @throws NullPointerException if the given object is null.
   */
  public void assertIsExactlyInstanceOf(AssertionInfo info, Object actual, Class<?> type) {
    assertNotNull(info, actual);
    if (type == null) throw new NullPointerException("The given type should not be null");
    Class<?> current = actual.getClass();
    if (type.equals(current)) return;
    throw failures.failure(info, shouldBeExactlyInstance(actual, type));
  }

  /**
   * Verifies that the actual value is not exactly a instance of given type.
   *
   * @param info contains information about the assertion.
   * @param actual the given object.
   * @param type the type to check the actual value against.
   * @throws AssertionError if the actual is exactly a instance of given type.
   * @throws NullPointerException if the actual value is null.
   * @throws NullPointerException if the given object is null.
   */
  public void assertIsNotExactlyInstanceOf(AssertionInfo info, Object actual, Class<?> type) {
    assertNotNull(info, actual);
    if (type == null) throw new NullPointerException("The given type should not be null");
    Class<?> current = actual.getClass();
    if (!type.equals(current)) return;
    throw failures.failure(info, shouldNotBeExactlyInstance(actual, type));
  }

  /**
   * Verifies that the actual value type is in given types.
   *
   * @param info contains information about the assertion.
   * @param actual the given object.
   * @param types the types to check the actual value against.
   * @throws AssertionError if the actual value type is in given type.
   * @throws NullPointerException if the actual value is null.
   * @throws NullPointerException if the given types is null.
   */
  public void assertIsOfAnyClassIn(AssertionInfo info, Object actual, Class<?>[] types) {
    assertNotNull(info, actual);
    if (types == null) throw new NullPointerException("The given types should not be null");
    if (isItemInArray(actual.getClass(), types)) return;
    throw failures.failure(info, shouldBeOfClassIn(actual, types));
  }

  /**
   * Verifies that the actual value type is not in given types.
   *
   * @param info contains information about the assertion.
   * @param actual the given object.
   * @param types the types to check the actual value against.
   * @throws AssertionError if the actual value type is in given type.
   * @throws NullPointerException if the actual value is null.
   * @throws NullPointerException if the given types is null.
   */
  public void assertIsNotOfAnyClassIn(AssertionInfo info, Object actual, Class<?>[] types) {
    assertNotNull(info, actual);
    if (types == null) throw new NullPointerException("The given types should not be null");
    if (!isItemInArray(actual.getClass(), types)) return;
    throw failures.failure(info, shouldNotBeOfClassIn(actual, types));
  }

  private void checkIsNotNullAndIsNotEmpty(Class<?>[] types) {
    if (types == null)
      throw new NullPointerException("The given array of types should not be null");
    if (types.length == 0)
      throw new IllegalArgumentException("The given array of types should not be empty");
  }

  /**
   * Asserts that two objects are equal.
   *
   * @param info contains information about the assertion.
   * @param actual the "actual" object.
   * @param expected the "expected" object.
   * @throws AssertionError if {@code actual} is not equal to {@code expected}. This method will
   *     throw a {@code org.junit.ComparisonFailure} instead if JUnit is in the classpath and the
   *     given objects are not equal.
   */
  public void assertEqual(AssertionInfo info, Object actual, Object expected) {
    if (areEqual(actual, expected)) return;
    throw failures.failure(info, shouldBeEqual(actual, expected, comparisonStrategy));
  }

  /**
   * Asserts that two objects are not equal.
   *
   * @param info contains information about the assertion.
   * @param actual the given object.
   * @param other the object to compare {@code actual} to.
   * @throws AssertionError if {@code actual} is equal to {@code other}.
   */
  public void assertNotEqual(AssertionInfo info, Object actual, Object other) {
    if (!areEqual(actual, other)) return;
    throw failures.failure(info, shouldNotBeEqual(actual, other, comparisonStrategy));
  }

  /**
   * Compares actual and other with standard strategy (null safe equals check).
   *
   * @param actual the object to compare to other
   * @param other the object to compare to actual
   * @return true if actual and other are equal (null safe equals check), false otherwise.
   */
  private boolean areEqual(Object actual, Object other) {
    return comparisonStrategy.areEqual(other, actual);
  }

  /**
   * Asserts that the given object is {@code null}.
   *
   * @param info contains information about the assertion.
   * @param actual the given object.
   * @throws AssertionError if the given object is not {@code null}.
   */
  public void assertNull(AssertionInfo info, Object actual) {
    if (actual == null) return;
    throw failures.failure(info, shouldBeEqual(actual, null, comparisonStrategy));
  }

  /**
   * Asserts that the given object is not {@code null}.
   *
   * @param info contains information about the assertion.
   * @param actual the given object.
   * @throws AssertionError if the given object is {@code null}.
   */
  public void assertNotNull(AssertionInfo info, Object actual) {
    if (actual != null) return;
    throw failures.failure(info, shouldNotBeNull());
  }

  /**
   * Asserts that two objects refer to the same object.
   *
   * @param info contains information about the assertion.
   * @param actual the given object.
   * @param expected the expected object.
   * @throws AssertionError if the given objects do not refer to the same object.
   */
  public void assertSame(AssertionInfo info, Object actual, Object expected) {
    if (actual == expected) return;
    throw failures.failure(info, shouldBeSame(actual, expected));
  }

  /**
   * Asserts that two objects do not refer to the same object.
   *
   * @param info contains information about the assertion.
   * @param actual the given object.
   * @param other the object to compare {@code actual} to.
   * @throws AssertionError if the given objects refer to the same object.
   */
  public void assertNotSame(AssertionInfo info, Object actual, Object other) {
    if (actual != other) return;
    throw failures.failure(info, shouldNotBeSame(actual));
  }

  /**
   * Asserts that the given object is present in the given array.
   *
   * @param info contains information about the assertion.
   * @param actual the given object.
   * @param values the given array.
   * @throws NullPointerException if the given array is {@code null}.
   * @throws IllegalArgumentException if the given array is empty.
   * @throws AssertionError if the given object is not present in the given array.
   */
  public void assertIsIn(AssertionInfo info, Object actual, Object[] values) {
    checkIsNotNullAndNotEmpty(values);
    assertNotNull(info, actual);
    if (isItemInArray(actual, values)) return;
    throw failures.failure(info, shouldBeIn(actual, values, comparisonStrategy));
  }

  /**
   * Asserts that the given object is not present in the given array.
   *
   * @param info contains information about the assertion.
   * @param actual the given object.
   * @param values the given array.
   * @throws NullPointerException if the given array is {@code null}.
   * @throws IllegalArgumentException if the given array is empty.
   * @throws AssertionError if the given object is present in the given array.
   */
  public void assertIsNotIn(AssertionInfo info, Object actual, Object[] values) {
    checkIsNotNullAndNotEmpty(values);
    assertNotNull(info, actual);
    if (!isItemInArray(actual, values)) return;
    throw failures.failure(info, shouldNotBeIn(actual, values, comparisonStrategy));
  }

  private void checkIsNotNullAndNotEmpty(Object[] values) {
    if (values == null) throw new NullPointerException("The given array should not be null");
    if (values.length == 0)
      throw new IllegalArgumentException("The given array should not be empty");
  }

  /**
   * Returns <code>true</code> if given item is in given array, <code>false</code> otherwise.
   *
   * @param item the object to look for in arrayOfValues
   * @param arrayOfValues the array of values
   * @return <code>true</code> if given item is in given array, <code>false</code> otherwise.
   */
  private boolean isItemInArray(Object item, Object[] arrayOfValues) {
    for (Object value : arrayOfValues) if (areEqual(value, item)) return true;
    return false;
  }

  /**
   * Asserts that the given object is present in the given collection.
   *
   * @param info contains information about the assertion.
   * @param actual the given object.
   * @param values the given iterable.
   * @throws NullPointerException if the given collection is {@code null}.
   * @throws IllegalArgumentException if the given collection is empty.
   * @throws AssertionError if the given object is not present in the given collection.
   */
  public <A> void assertIsIn(AssertionInfo info, A actual, Iterable<? extends A> values) {
    checkIsNotNullAndNotEmpty(values);
    assertNotNull(info, actual);
    if (isActualIn(actual, values)) return;
    throw failures.failure(info, shouldBeIn(actual, values, comparisonStrategy));
  }

  /**
   * Asserts that the given object is not present in the given collection.
   *
   * @param info contains information about the assertion.
   * @param actual the given object.
   * @param values the given collection.
   * @throws NullPointerException if the given iterable is {@code null}.
   * @throws IllegalArgumentException if the given collection is empty.
   * @throws AssertionError if the given object is present in the given collection.
   */
  public <A> void assertIsNotIn(AssertionInfo info, A actual, Iterable<? extends A> values) {
    checkIsNotNullAndNotEmpty(values);
    assertNotNull(info, actual);
    if (!isActualIn(actual, values)) return;
    throw failures.failure(info, shouldNotBeIn(actual, values, comparisonStrategy));
  }

  private void checkIsNotNullAndNotEmpty(Iterable<?> values) {
    if (values == null) throw new NullPointerException("The given iterable should not be null");
    if (!values.iterator().hasNext())
      throw new IllegalArgumentException("The given iterable should not be empty");
  }

  private <A> boolean isActualIn(A actual, Iterable<? extends A> values) {
    for (A value : values) if (areEqual(value, actual)) return true;
    return false;
  }

  /**
   * Assert that the given object is lenient equals by ignoring null fields value on other object.
   *
   * @param info contains information about the assertion.
   * @param actual the given object.
   * @param other the object to compare {@code actual} to.
   * @throws NullPointerException if the actual type is {@code null}.
   * @throws NullPointerException if the other type is {@code null}.
   * @throws AssertionError if the actual and the given object are not lenient equals.
   * @throws AssertionError if the other object is not an instance of the actual type.
   */
  public <A> void assertIsLenientEqualsToByIgnoringNullFields(
      AssertionInfo info, A actual, A other) {
    assertIsInstanceOf(info, other, actual.getClass());
    List<String> fieldsNames = new LinkedList<String>();
    List<Object> values = new LinkedList<Object>();
    List<String> nullFields = new LinkedList<String>();
    for (Field field : actual.getClass().getDeclaredFields()) {
      try {
        Object otherFieldValue =
            propertySupport.propertyValue(field.getName(), field.getType(), other);
        if (otherFieldValue != null) {
          Object actualFieldValue =
              propertySupport.propertyValue(field.getName(), field.getType(), actual);
          if (!otherFieldValue.equals(actualFieldValue)) {
            fieldsNames.add(field.getName());
            values.add(otherFieldValue);
          }
        } else {
          nullFields.add(field.getName());
        }
      } catch (IntrospectionError e) {
        // Not readeable field, skip.
      }
    }
    if (fieldsNames.isEmpty()) return;
    throw failures.failure(
        info, shouldBeLenientEqualByIgnoring(actual, fieldsNames, values, nullFields));
  }

  /**
   * Assert that the given object is lenient equals to other object by comparing given fields value
   * only.
   *
   * @param info contains information about the assertion.
   * @param actual the given object.
   * @param other the object to compare {@code actual} to.
   * @param fields accepted fields
   * @throws NullPointerException if the actual type is {@code null}.
   * @throws NullPointerException if the other type is {@code null}.
   * @throws AssertionError if the actual and the given object are not lenient equals.
   * @throws AssertionError if the other object is not an instance of the actual type.
   * @throws IntrospectionError if a field does not exist in actual.
   */
  public <A> void assertIsLenientEqualsToByAcceptingFields(
      AssertionInfo info, A actual, A other, String... fields) {
    assertIsInstanceOf(info, other, actual.getClass());
    List<String> rejectedFieldsNames = new LinkedList<String>();
    List<Object> expectedValues = new LinkedList<Object>();
    for (String fieldName : fields) {
      Object actualFieldValue = propertySupport.propertyValue(fieldName, Object.class, actual);
      Object otherFieldValue = propertySupport.propertyValue(fieldName, Object.class, other);
      if (!(actualFieldValue == otherFieldValue
          || (actualFieldValue != null && actualFieldValue.equals(otherFieldValue)))) {
        rejectedFieldsNames.add(fieldName);
        expectedValues.add(otherFieldValue);
      }
    }
    if (rejectedFieldsNames.isEmpty()) return;
    throw failures.failure(
        info,
        shouldBeLenientEqualByAccepting(actual, rejectedFieldsNames, expectedValues, list(fields)));
  }

  /**
   * Assert that the given object is lenient equals by ignoring fields.
   *
   * @param info contains information about the assertion.
   * @param actual the given object.
   * @param other the object to compare {@code actual} to.
   * @param fields the fields to ignore in comparison
   * @throws NullPointerException if the actual type is {@code null}.
   * @throws NullPointerException if the other type is {@code null}.
   * @throws AssertionError if the actual and the given object are not lenient equals.
   * @throws AssertionError if the other object is not an instance of the actual type.
   */
  public <A> void assertIsLenientEqualsToByIgnoringFields(
      AssertionInfo info, A actual, A other, String... fields) {
    assertIsInstanceOf(info, other, actual.getClass());
    List<String> fieldsNames = new LinkedList<String>();
    List<Object> expectedValues = new LinkedList<Object>();
    Set<String> ignoredFields = set(fields);
    for (Field field : actual.getClass().getDeclaredFields()) {
      try {
        if (!ignoredFields.contains(field.getName())) {
          String fieldName = field.getName();
          Object actualFieldValue = propertySupport.propertyValue(fieldName, Object.class, actual);
          Object otherFieldValue = propertySupport.propertyValue(fieldName, Object.class, other);
          if (!org.fest.util.Objects.areEqual(actualFieldValue, otherFieldValue)) {
            fieldsNames.add(fieldName);
            expectedValues.add(otherFieldValue);
          }
        }
      } catch (IntrospectionError e) {
        // Not readeable field, skip.
      }
    }
    if (fieldsNames.isEmpty()) return;
    throw failures.failure(
        info, shouldBeLenientEqualByIgnoring(actual, fieldsNames, expectedValues, list(fields)));
  }
}
Ejemplo n.º 17
0
 /**
  * Verifies that the given object is not an instance of the given type.
  *
  * @param info contains information about the assertion.
  * @param actual the given object.
  * @param type the type to check the given object against.
  * @throws NullPointerException if the given type is {@code null}.
  * @throws AssertionError if the given object is {@code null}.
  * @throws AssertionError if the given object is an instance of the given type.
  */
 public void assertIsNotInstanceOf(AssertionInfo info, Object actual, Class<?> type) {
   if (type == null) throw new NullPointerException("The given type should not be null");
   assertNotNull(info, actual);
   if (!type.isInstance(actual)) return;
   throw failures.failure(info, shouldNotBeInstance(actual, type));
 }