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How to use compareUnorderedCollection method of org.assertj.core.internal.DeepDifference class

Best Assertj code snippet using org.assertj.core.internal.DeepDifference.compareUnorderedCollection

Source:DeepDifference.java

...222        continue;223      }224      // Handle unordered Collection.225      if (key1 instanceof Collection) {226        if (!compareUnorderedCollection((Collection<?>) key1, (Collection<?>) key2, currentPath, toCompare,227                                        visited, comparatorByPropertyOrField, comparatorByType)) {228          differences.add(new Difference(currentPath, key1, key2));229          continue;230        }231        continue;232      }233      // Compare two SortedMaps. This takes advantage of the fact that these234      // Maps can be compared in O(N) time due to their ordering.235      if (key1 instanceof SortedMap) {236        if (!compareSortedMap((SortedMap<?, ?>) key1, (SortedMap<?, ?>) key2, currentPath, toCompare, visited)) {237          differences.add(new Difference(currentPath, key1, key2));238          continue;239        }240        continue;241      }242      // Compare two Unordered Maps. This is a slightly more expensive comparison because243      // order cannot be assumed, therefore a temporary Map must be created, however the244      // comparison still runs in O(N) time.245      if (key1 instanceof Map) {246        if (!compareUnorderedMap((Map<?, ?>) key1, (Map<?, ?>) key2, currentPath, toCompare, visited)) {247          differences.add(new Difference(currentPath, key1, key2));248          continue;249        }250        continue;251      }252      if (hasCustomEquals(key1.getClass())) {253        if (!key1.equals(key2)) {254          differences.add(new Difference(currentPath, key1, key2));255          continue;256        }257        continue;258      }259      Set<String> key1FieldsNames = getFieldsNames(getDeclaredFieldsIncludingInherited(key1.getClass()));260      Set<String> key2FieldsNames = getFieldsNames(getDeclaredFieldsIncludingInherited(key2.getClass()));261      if (!key2FieldsNames.containsAll(key1FieldsNames)) {262        differences.add(new Difference(currentPath, key1, key2));263      } else {264        for (String fieldName : key1FieldsNames) {265          List<String> path = new ArrayList<>(currentPath);266          path.add(fieldName);267          DualKey dk = new DualKey(path,268                                   COMPARISON.getSimpleValue(fieldName, key1),269                                   COMPARISON.getSimpleValue(fieldName, key2));270          if (!visited.contains(dk)) {271            toCompare.addFirst(dk);272          }273        }274      }275    }276    return differences;277  }278  private static boolean hasCustomComparator(DualKey dualKey, Map<String, Comparator<?>> comparatorByPropertyOrField,279                                             TypeComparators comparatorByType) {280    String fieldName = dualKey.getConcatenatedPath();281    if (comparatorByPropertyOrField.containsKey(fieldName)) return true;282    // we know that dualKey.key1 != dualKey.key2 at this point, so one the key is not null283    Class<?> keyType = dualKey.key1 != null ? dualKey.key1.getClass() : dualKey.key2.getClass();284    return comparatorByType.get(keyType) != null;285  }286  private static Deque<DualKey> initStack(Object a, Object b, List<String> parentPath,287                                          Map<String, Comparator<?>> comparatorByPropertyOrField,288                                          TypeComparators comparatorByType) {289    Deque<DualKey> stack = new LinkedList<>();290    boolean isRootObject = parentPath == null;291    List<String> currentPath = isRootObject ? new ArrayList<String>() : parentPath;292    DualKey basicDualKey = new DualKey(currentPath, a, b);293    if (a != null && b != null && !isContainerType(a) && !isContainerType(b)294        && (isRootObject || !hasCustomComparator(basicDualKey, comparatorByPropertyOrField, comparatorByType))) {295      // disregard the equals method and start comparing fields296      Set<String> aFieldsNames = getFieldsNames(getDeclaredFieldsIncludingInherited(a.getClass()));297      if (!aFieldsNames.isEmpty()) {298        Set<String> bFieldsNames = getFieldsNames(getDeclaredFieldsIncludingInherited(b.getClass()));299        if (!bFieldsNames.containsAll(aFieldsNames)) {300          stack.addFirst(basicDualKey);301        } else {302          for (String fieldName : aFieldsNames) {303            List<String> fieldPath = new ArrayList<>(currentPath);304            fieldPath.add(fieldName);305            DualKey dk = new DualKey(fieldPath,306                                     COMPARISON.getSimpleValue(fieldName, a),307                                     COMPARISON.getSimpleValue(fieldName, b));308            stack.addFirst(dk);309          }310        }311      } else {312        stack.addFirst(basicDualKey);313      }314    } else {315      stack.addFirst(basicDualKey);316    }317    return stack;318  }319  private static Set<String> getFieldsNames(Collection<Field> fields) {320    Set<String> fieldNames = new LinkedHashSet<>();321    for (Field field : fields) {322      fieldNames.add(field.getName());323    }324    return fieldNames;325  }326  private static boolean isContainerType(Object o) {327    return o instanceof Collection || o instanceof Map;328  }329  /**330   * Deeply compare to Arrays []. Both arrays must be of the same type, same331   * length, and all elements within the arrays must be deeply equal in order332   * to return true.333   * 334   * @param array1 [] type (Object[], String[], etc.)335   * @param array2 [] type (Object[], String[], etc.)336   * @param path the path to the arrays to compare337   * @param toCompare add items to compare to the Stack (Stack versus recursion)338   * @param visited Set of objects already compared (prevents cycles)339   * @return true if the two arrays are the same length and contain deeply340   *         equivalent items.341   */342  private static boolean compareArrays(Object array1, Object array2, List<String> path, Deque<DualKey> toCompare,343                                       Set<DualKey> visited) {344    int len = Array.getLength(array1);345    if (len != Array.getLength(array2)) {346      return false;347    }348    for (int i = 0; i < len; i++) {349      DualKey dk = new DualKey(path, Array.get(array1, i), Array.get(array2, i));350      if (!visited.contains(dk)) {351        toCompare.addFirst(dk);352      }353    }354    return true;355  }356  /**357   * Deeply compare two Collections that must be same length and in same358   * order.359   * 360   * @param col1 First collection of items to compare361   * @param col2 Second collection of items to compare362   * @param path The path to the collections363   * @param toCompare add items to compare to the Stack (Stack versus recursion)364   * @param visited365   *          Set of objects already compared (prevents cycles) value of366   *          'true' indicates that the Collections may be equal, and the367   *          sets items will be added to the Stack for further comparison.368   */369  private static <K, V> boolean compareOrderedCollection(Collection<K> col1, Collection<V> col2,370                                                         List<String> path, Deque<DualKey> toCompare,371                                                         Set<DualKey> visited) {372    if (col1.size() != col2.size()) return false;373    Iterator<V> i2 = col2.iterator();374    for (K k : col1) {375      DualKey dk = new DualKey(path, k, i2.next());376      if (!visited.contains(dk)) toCompare.addFirst(dk);377    }378    return true;379  }380  /**381   * It places one collection into a temporary Map by deepHashCode(), so that it382   * can walk the other collection and look for each item in the map, which383   * runs in O(N) time, rather than an O(N^2) lookup that would occur if each384   * item from collection one was scanned for in collection two.385   * 386   * @param col1 First collection of items to compare387   * @param col2 Second collection of items to compare388   * @param path the path to the collections to compare389   * @param toCompare add items to compare to the Stack (Stack versus recursion)390   * @param visited Set containing items that have already been compared, so as to391   *          prevent cycles.392   * @return boolean false if the Collections are for certain not equals. A393   *         value of 'true' indicates that the Collections may be equal, and394   *         the sets items will be added to the Stack for further comparison.395   */396  private static <K, V> boolean compareUnorderedCollectionByHashCodes(Collection<K> col1, Collection<V> col2,397                                                                      List<String> path, Deque<DualKey> toCompare,398                                                                      Set<DualKey> visited) {399    Map<Integer, Object> fastLookup = new HashMap<>();400    for (Object o : col2) {401      fastLookup.put(deepHashCode(o), o);402    }403    for (Object o : col1) {404      Object other = fastLookup.get(deepHashCode(o));405      if (other == null) {406        // Item not even found in other Collection, no need to continue.407        return false;408      }409      DualKey dk = new DualKey(path, o, other);410      if (!visited.contains(dk)) {411        toCompare.addFirst(dk);412      }413    }414    return true;415  }416  /**417   * Deeply compares two collections referenced by dualKey. This method attempts418   * to quickly determine inequality by length, then if lengths match, in case of419   * collection type is Set and there are passed no custom comparators, there is used420   * comparison on hashcodes basis, otherwise each element from one collection is checked421   * for existence in another one using 'deep' comparison.422   */423  private static <K, V> boolean compareUnorderedCollection(Collection<K> col1, Collection<V> col2,424                                                           List<String> path, Deque<DualKey> toCompare,425                                                           Set<DualKey> visited,426                                                           Map<String, Comparator<?>> comparatorByPropertyOrField,427                                                           TypeComparators comparatorByType) {428    if (col1.size() != col2.size()) return false;429    boolean noCustomComparators = comparatorByPropertyOrField.isEmpty() && comparatorByType.isEmpty();430    if (noCustomComparators && col1 instanceof Set) {431      // this comparison is used for performance optimization reasons432      return compareUnorderedCollectionByHashCodes(col1, col2, path, toCompare, visited);433    }434    Collection<V> col2Copy = new LinkedList<>(col2);435    for (Object o1 : col1) {436      Iterator<V> iterator = col2Copy.iterator();437      while (iterator.hasNext()) {438        Object o2 = iterator.next();439        if (determineDifferences(o1, o2, path, comparatorByPropertyOrField, comparatorByType).isEmpty()) {440          iterator.remove();441          break;442        }443      }444    }445    return col2Copy.isEmpty();446  }...

compareUnorderedCollection

Using AI Code Generation

1import org.assertj.core.api.Assertions;2import org.assertj.core.internal.DeepDifference;3import java.util.ArrayList;4import java.util.Arrays;5import java.util.List;6public class DeepDifferenceTest {7    public static void main(String[] args) {8        List<String> a = new ArrayList<>(Arrays.asList("a", "b", "c", "d", "e", "f", "g", "h", "i", "j", "k", "l", "m", "n", "o", "p", "q", "r", "s", "t", "u", "v", "w", "x", "y", "z"));9        List<String> b = new ArrayList<>(Arrays.asList("a", "b", "c", "d", "e", "f", "g", "h", "i", "j", "k", "l", "m", "n", "o", "p", "q", "r", "s", "t", "u", "v", "w", "x", "y", "z"));10        DeepDifference deepDifference = new DeepDifference();11        Assertions.assertThat(deepDifference.compareUnorderedCollection(a, b)).isNull();12    }13}14import org.assertj.core.api.Assertions;15import org.assertj.core.internal.DeepDifference;16import java.util.ArrayList;17import java.util.Arrays;18import java.util.List;19public class DeepDifferenceTest {20    public static void main(String[] args) {21        List<String> a = new ArrayList<>(Arrays.asList("a", "b", "c", "d", "e", "f", "g", "h", "i", "j", "k", "l", "m", "n", "o", "p", "q", "r", "s", "t", "u", "v", "w", "x", "y", "z"));22        List<String> b = new ArrayList<>(Arrays.asList("a", "b", "c", "d", "e", "f", "g", "h", "i", "j", "k", "l", "

compareUnorderedCollection

Using AI Code Generation

1import org.assertj.core.internal.DeepDifference;2import org.assertj.core.internal.DeepDifference.Difference;3import java.util.ArrayList;4import java.util.List;5public class DeepDifferenceExample {6    public static void main(String[] args) {7        List<String> actual = new ArrayList<>();8        actual.add("one");9        actual.add("two");10        actual.add("three");11        actual.add("four");12        List<String> expected = new ArrayList<>();13        expected.add("one");14        expected.add("two");15        expected.add("three");16        expected.add("four");17        DeepDifference deepDifference = new DeepDifference();18        Difference difference = deepDifference.compareUnorderedCollection(expected, actual);19        System.out.println("difference: " + difference);20    }21}22import org.assertj.core.internal.DeepDifference;23import org.assertj.core.internal.DeepDifference.Difference;24import java.util.ArrayList;25import java.util.List;26public class DeepDifferenceExample {27    public static void main(String[] args) {28        List<String> actual = new ArrayList<>();29        actual.add("one");30        actual.add("two");31        actual.add("three");32        actual.add("four");33        List<String> expected = new ArrayList<>();34        expected.add("one");35        expected.add("two");36        expected.add("three");37        expected.add("four");38        DeepDifference deepDifference = new DeepDifference();39        Difference difference = deepDifference.compareOrderedCollection(expected, actual);40        System.out.println("difference: " + difference);41    }42}43import org.assertj.core.internal.DeepDifference;44import org.assertj.core.internal.DeepDifference.Difference;45import java.util.ArrayList;46import java.util.List;47public class DeepDifferenceExample {48    public static void main(String[] args) {49        List<String> actual = new ArrayList<>();50        actual.add("one");51        actual.add("two");52        actual.add("three");53        actual.add("four");54        List<String> expected = new ArrayList<>();55        expected.add("four");56        expected.add("two");57        expected.add("three");

compareUnorderedCollection

Using AI Code Generation

1public class CompareUnorderedCollection {2    public static void main(String[] args) {3        List<Integer> list1 = new ArrayList<>();4        list1.add(1);5        list1.add(2);6        list1.add(3);7        list1.add(4);8        list1.add(5);9        list1.add(6);10        List<Integer> list2 = new ArrayList<>();11        list2.add(1);12        list2.add(2);13        list2.add(3);14        list2.add(4);15        list2.add(5);16        list2.add(6);17        List<Integer> list3 = new ArrayList<>();18        list3.add(1);19        list3.add(2);20        list3.add(3);21        list3.add(4);22        list3.add(5);23        list3.add(7);24        List<Integer> list4 = new ArrayList<>();25        list4.add(1);26        list4.add(2);27        list4.add(3);28        list4.add(4);29        list4.add(5);30        System.out.println("list1 and list2 are equal: " + compareUnorderedCollection(list1, list2));31        System.out.println("list1 and list3 are equal: " + compareUnorderedCollection(list1, list3));32        System.out.println("list1 and list4 are equal: " + compareUnorderedCollection(list1, list4));33    }34    private static boolean compareUnorderedCollection(List<Integer> list1, List<Integer> list2) {35        DeepDifference deepDifference = new DeepDifference(list1, list2);36        deepDifference.compareUnorderedCollection();37        return deepDifference.areEqual();38    }39}

compareUnorderedCollection

Using AI Code Generation

1    def compareUnorderedCollection(Collection actual, Collection expected, ComparisonStrategy comparisonStrategy) {2        def deepDifference = new DeepDifference(actual, expected, comparisonStrategy)3        if (difference != null) {4        }5    }6    def "should not throw AssertionError when comparing unordered collections"() {7        def difference = compareUnorderedCollection(actual, expected, StandardComparisonStrategy.instance())8    }9    def "should throw AssertionError when comparing unordered collections"() {10        def difference = compareUnorderedCollection(actual, expected, StandardComparisonStrategy.instance())11    }12}13Your name to display (optional):14Your name to display (optional):

compareUnorderedCollection

Using AI Code Generation

1package com.example;2import static org.assertj.core.api.Assertions.assertThat;3import static org.assertj.core.api.Assertions.assertThatThrownBy;4import static org.assertj.core.api.Assertions.fail;5import static org.assertj.core.internal.DeepDifference.compareUnorderedCollection;6import java.util.ArrayList;7import java.util.Arrays;8import java.util.List;9import org.assertj.core.internal.DeepDifference.Difference;10import org.junit.Test;11public class CollectionDifferenceTest {12    public void test() {13        List<String> list1 = new ArrayList<>(Arrays.asList("a", "b", "c"));14        List<String> list2 = new ArrayList<>(Arrays.asList("a", "b", "c", "d"));15        Difference diff = compareUnorderedCollection(list1, list2, "list1", "list2");16        if (diff != null) {17            System.out.println(diff);18            fail("Lists are not equal");19        }20    }21}

compareUnorderedCollection

Using AI Code Generation

1import org.assertj.core.internal.DeepDifference;2import org.assertj.core.internal.Difference;3import java.util.ArrayList;4import java.util.Arrays;5import java.util.List;6public class TestDeepDifference {7    public static void main(String[] args) {8        List list1 = new ArrayList();9        list1.add("one");10        list1.add("two");11        list1.add("three");12        list1.add("four");13        list1.add("five");14        list1.add("six");15        list1.add("seven");16        list1.add("eight");17        list1.add("nine");18        list1.add("ten");19        List list2 = new ArrayList();20        list2.add(new Object());

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