How to use hasDualValuesToCompare method of org.assertj.core.api.recursive.comparison.RecursiveComparisonDifferenceCalculator class

Best Assertj code snippet using org.assertj.core.api.recursive.comparison.RecursiveComparisonDifferenceCalculator.hasDualValuesToCompare

Source:RecursiveComparisonDifferenceCalculator.java

...78    public List<ComparisonDifference> getDifferences() {79      Collections.sort(differences);80      return differences;81    }82    public boolean hasDualValuesToCompare() {83      return !dualValuesToCompare.isEmpty();84    }85    public DualValue pickDualValueToCompare() {86      final DualValue dualValue = dualValuesToCompare.removeFirst();87      if (dualValue.hasPotentialCyclingValues()) {88        // visited dual values are here to avoid cycle, java types don't have cycle, there is no need to track them.89        // moreover this would make should_fix_1854_minimal_test to fail (see the test for a detailed explanation)90        visitedDualValues.add(dualValue);91      }92      return dualValue;93    }94    private void registerForComparison(DualValue dualValue) {95      if (!visitedDualValues.contains(dualValue)) dualValuesToCompare.addFirst(dualValue);96    }97    private void initDualValuesToCompare(Object actual, Object expected, List<String> parentPath, boolean isRootObject) {98      DualValue dualValue = new DualValue(parentPath, actual, expected);99      boolean mustCompareFieldsRecursively = mustCompareFieldsRecursively(isRootObject, dualValue);100      if (dualValue.hasNoNullValues() && dualValue.hasNoContainerValues() && mustCompareFieldsRecursively) {101        // disregard the equals method and start comparing fields102        Set<String> nonIgnoredActualFieldsNames = recursiveComparisonConfiguration.getNonIgnoredActualFieldNames(dualValue);103        if (!nonIgnoredActualFieldsNames.isEmpty()) {104          // fields to ignore are evaluated when adding their corresponding dualValues to dualValuesToCompare which filters105          // ignored fields according to recursiveComparisonConfiguration106          Set<String> expectedFieldsNames = getFieldsNames(expected.getClass());107          if (expectedFieldsNames.containsAll(nonIgnoredActualFieldsNames)) {108            // we compare actual fields vs expected, ignoring expected additional fields109            for (String nonIgnoredActualFieldName : nonIgnoredActualFieldsNames) {110              DualValue fieldDualValue = new DualValue(parentPath, nonIgnoredActualFieldName,111                                                       COMPARISON.getSimpleValue(nonIgnoredActualFieldName, actual),112                                                       COMPARISON.getSimpleValue(nonIgnoredActualFieldName, expected));113              dualValuesToCompare.addFirst(fieldDualValue);114            }115          } else {116            dualValuesToCompare.addFirst(dualValue);117          }118        } else {119          dualValuesToCompare.addFirst(dualValue);120        }121      } else {122        dualValuesToCompare.addFirst(dualValue);123      }124      // We need to remove already visited fields pair to avoid infinite recursion in case125      // parent -> set{child} with child having a reference back to parent126      // it occurs to unordered collection where we compare all possible combination of the collection elements recursively127      // --128      // remove visited values one by one, DualValue.equals correctly compare respective actual and expected fields by reference129      visitedDualValues.forEach(visitedDualValue -> dualValuesToCompare.stream()130                                                                       .filter(dualValueToCompare -> dualValueToCompare.equals(visitedDualValue))131                                                                       .findFirst()132                                                                       .ifPresent(dualValuesToCompare::remove));133    }134    private boolean mustCompareFieldsRecursively(boolean isRootObject, DualValue dualValue) {135      boolean noCustomComparisonForDualValue = !recursiveComparisonConfiguration.hasCustomComparator(dualValue)136                                               && !shouldHonorOverriddenEquals(dualValue, recursiveComparisonConfiguration);137      return isRootObject || noCustomComparisonForDualValue;138    }139  }140  /**141   * Compare two objects for differences by doing a 'deep' comparison. This will traverse the142   * Object graph and perform either a field-by-field comparison on each143   * object (if not .equals() method has been overridden from Object), or it144   * will call the customized .equals() method if it exists.145   * <p>146   *147   * This method handles cycles correctly, for example A-&gt;B-&gt;C-&gt;A.148   * Suppose a and a' are two separate instances of the A with the same values149   * for all fields on A, B, and C. Then a.deepEquals(a') will return an empty list. It150   * uses cycle detection storing visited objects in a Set to prevent endless151   * loops.152   *153   * @param actual Object one to compare154   * @param expected Object two to compare155   * @param recursiveComparisonConfiguration the recursive comparison configuration156   * @return the list of differences found or an empty list if objects are equivalent.157   *         Equivalent means that all field values of both subgraphs are the same,158   *         either at the field level or via the respectively encountered overridden159   *         .equals() methods during traversal.160   */161  public List<ComparisonDifference> determineDifferences(Object actual, Object expected,162                                                         RecursiveComparisonConfiguration recursiveComparisonConfiguration) {163    if (recursiveComparisonConfiguration.isInStrictTypeCheckingMode() && expectedTypeIsNotSubtypeOfActualType(actual, expected)) {164      return list(expectedAndActualTypeDifference(actual, expected));165    }166    List<String> rootPath = list();167    List<DualValue> visited = list();168    return determineDifferences(actual, expected, rootPath, true, visited, recursiveComparisonConfiguration);169  }170  // TODO keep track of ignored fields in an RecursiveComparisonExecution class ?171  private static List<ComparisonDifference> determineDifferences(Object actual, Object expected, List<String> parentPath,172                                                                 boolean isRootObject, List<DualValue> visited,173                                                                 RecursiveComparisonConfiguration recursiveComparisonConfiguration) {174    ComparisonState comparisonState = new ComparisonState(visited, recursiveComparisonConfiguration);175    comparisonState.initDualValuesToCompare(actual, expected, parentPath, isRootObject);176    while (comparisonState.hasDualValuesToCompare()) {177      final DualValue dualValue = comparisonState.pickDualValueToCompare();178      final List<String> currentPath = dualValue.getPath();179      final Object actualFieldValue = dualValue.actual;180      final Object expectedFieldValue = dualValue.expected;181      if (actualFieldValue == expectedFieldValue) continue;182      // Custom comparators take precedence over all other types of comparison183      if (recursiveComparisonConfiguration.hasCustomComparator(dualValue)) {184        if (!propertyOrFieldValuesAreEqual(dualValue, recursiveComparisonConfiguration)) comparisonState.addDifference(dualValue);185        // since we used a custom comparator we don't need to inspect the nested fields any further186        continue;187      }188      if (actualFieldValue == null || expectedFieldValue == null) {189        // one of the value is null while the other is not as we already know that actualFieldValue != expectedFieldValue190        comparisonState.addDifference(dualValue);...

hasDualValuesToCompare

Using AI Code Generation

1public class RecursiveComparisonDifferenceCalculatorTest {2    private static final String EXPECTED = "expected";3    private static final String ACTUAL = "actual";4    private static final String DESCRIPTION = "description";5    public void should_return_false_when_both_values_are_null() {6        RecursiveComparisonDifferenceCalculator calculator = new RecursiveComparisonDifferenceCalculator(null, null, null);7        assertThat(calculator.hasDualValuesToCompare()).isFalse();8    }9    public void should_return_true_when_both_values_are_not_null() {10        RecursiveComparisonDifferenceCalculator calculator = new RecursiveComparisonDifferenceCalculator(EXPECTED, ACTUAL, null);11        assertThat(calculator.hasDualValuesToCompare()).isTrue();12    }13    public void should_return_true_when_only_expected_value_is_null() {14        RecursiveComparisonDifferenceCalculator calculator = new RecursiveComparisonDifferenceCalculator(null, ACTUAL, null);15        assertThat(calculator.hasDualValuesToCompare()).isTrue();16    }17    public void should_return_true_when_only_actual_value_is_null() {18        RecursiveComparisonDifferenceCalculator calculator = new RecursiveComparisonDifferenceCalculator(EXPECTED, null, null);19        assertThat(calculator.hasDualValuesToCompare()).isTrue();20    }21}

hasDualValuesToCompare

Using AI Code Generation

1public RecursiveComparisonDifferenceCalculatorTest()2public void should_return_false_when_differences_is_empty()3public void should_return_false_when_differences_is_not_empty()4public void should_return_false_when_differences_has_only_dual_values()5public void should_return_true_when_differences_has_only_dual_values_and_one_of_them_is_a_collection()6public void should_return_true_when_differences_has_only_dual_values_and_one_of_them_is_a_map()7public void should_return_true_when_differences_has_only_dual_values_and_one_of_them_is_an_array()8public void should_return_true_when_differences_has_only_dual_values_and_one_of_them_is_a_primitive_array()9public void should_return_true_when_differences_has_only_dual_values_and_one_of_them_is_a_multi_dimensional_primitive_array()10public void should_return_true_when_differences_has_only_dual_values_and_one_of_them_is_a_multi_dimensional_object_array()11public void should_return_true_when_differences_has_only_dual_values_and_one_of_them_is_a_multi_dimensional_primitive_array_of_arrays()12public void should_return_true_when_differences_has_only_dual_values_and_one_of_them_is_a_multi_dimensional_object_array_of_arrays()13public void should_return_true_when_differences_has_only_dual_values_and_one_of_them_is_a_multi_dimensional_array_of_multi_dimensional_array_of_primitive()14public void should_return_true_when_differences_has_only_dual_values_and_one_of_them_is_a_multi_dimensional_array_of_multi_dimensional_array_of_object()15public void should_return_true_when_differences_has_only_dual_values_and_one_of_them_is_a_multi_dimensional_array_of_multi_dimensional_array_of_multi_dimensional_array_of_primitive()16public void should_return_true_when_differences_has_only_dual_values_and_one_of_them_is_a_multi_dimensional_array_of_multi_dimensional_array_of_multi_dimensional_array_of_object()

hasDualValuesToCompare

Using AI Code Generation

1    public void test() {2        final MyObject expected = new MyObject("a", "b");3        final MyObject actual = new MyObject("a", "c");4        final RecursiveComparisonAssert<MyObject> comparison = assertThat(actual).usingRecursiveComparison();5        comparison.isEqualTo(expected);6    }7    private static class MyObject {8        private final String a;9        private final String b;10        public MyObject(String a, String b) {11            this.a = a;12            this.b = b;13        }14        public String getA() {15            return a;16        }17        public String getB() {18            return b;19        }20    }21  <MyObject{a=a, b=c}>22  <MyObject{a=a, b=b}>23assertThat(new File("actual.txt")).hasSameContentAs(new File("expected.txt"));

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