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How to use missingActualElements method of org.assertj.core.internal.IterableDiff class

Best Assertj code snippet using org.assertj.core.internal.IterableDiff.missingActualElements

Source:IterableDiff.java

...27    this.comparisonStrategy = comparisonStrategy;28    // return the elements in actual that are not in expected: actual - expected29    this.unexpected = unexpectedActualElements(actual, expected);30    // return the elements in expected that are not in actual: expected - actual31    this.missing = missingActualElements(actual, expected);32  }33  static <T> IterableDiff<T> diff(Iterable<T> actual, Iterable<T> expected, ComparisonStrategy comparisonStrategy) {34    return new IterableDiff<>(actual, expected, comparisonStrategy);35  }36  static <T> IterableDiff<T> diff(Iterable<T> actual, Iterable<T> expected) {37    return diff(actual, expected, StandardComparisonStrategy.instance());38  }39  boolean differencesFound() {40    return !unexpected.isEmpty() || !missing.isEmpty();41  }42  /**43   * Returns the list of elements in the first iterable that are not in the second, i.e. first - second44   *45   * @param actual the list we want to subtract from46   * @param expected the list to subtract47   * @return the list of elements in the first iterable that are not in the second, i.e. first - second48   */49  private List<T> unexpectedActualElements(Iterable<T> actual, Iterable<T> expected) {50    List<T> missingInFirst = new ArrayList<>();51    // use a copy to deal correctly with potential duplicates52    List<T> copyOfExpected = newArrayList(expected);53    for (T elementInActual : actual) {54      if (isActualElementInExpected(elementInActual, copyOfExpected)) {55        // remove the element otherwise a duplicate would be found in the case if there is one in actual56        iterablesRemoveFirst(copyOfExpected, elementInActual);57      } else {58        missingInFirst.add(elementInActual);59      }60    }61    return unmodifiableList(missingInFirst);62  }63  private boolean isActualElementInExpected(T elementInActual, List<T> copyOfExpected) {64    // the order of comparisonStrategy.areEqual is important if element comparison is not symmetrical, we must compare actual to65    // expected but not expected to actual, for ex recursive comparison where:66    // - actual element is PersonDto, expected a list of Person67    // - Person has more fields than PersonDto => comparing PersonDto to Person is ok as it looks at PersonDto fields only,68    // --- the opposite always fails as the reference fields are Person fields and PersonDto does not have all of them.69    return copyOfExpected.stream().anyMatch(expectedElement -> comparisonStrategy.areEqual(elementInActual, expectedElement));70  }71  private List<T> missingActualElements(Iterable<T> actual, Iterable<T> expected) {72    List<T> missingInExpected = new ArrayList<>();73    // use a copy to deal correctly with potential duplicates74    List<T> copyOfActual = newArrayList(actual);75    for (T expectedElement : expected) {76      if (iterableContains(copyOfActual, expectedElement)) {77        // remove the element otherwise a duplicate would be found in the case if there is one in actual78        iterablesRemoveFirst(copyOfActual, expectedElement);79      } else {80        missingInExpected.add(expectedElement);81      }82    }83    return unmodifiableList(missingInExpected);84  }85  private boolean iterableContains(Iterable<?> actual, T expectedElement) {...

missingActualElements

Using AI Code Generation

1import org.assertj.core.api.Assertions;2import org.assertj.core.internal.IterableDiff;3import org.assertj.core.internal.Objects;4import org.junit.Test;5import java.util.ArrayList;6import java.util.Arrays;7import java.util.List;8public class IterableDiffTest {9    public void testMissingActualElements() {10        IterableDiff iterableDiff = new IterableDiff();11        List<String> expected = Arrays.asList("a", "b");12        List<String> actual = Arrays.asList("a", "b", "c", "d", "e");13        List<String> missingActualElements = iterableDiff.missingActualElements(expected, actual);14        Assertions.assertThat(missingActualElements).containsExactly("c", "d", "e");15    }16}17protected List<E> missingActualElements(List<? extends E> expected, List<? extends E> actual) {18    List<E> missing = new ArrayList<E>();19    for (E e : actual) {20      if (!contains(expected, e)) {21        missing.add(e);22      }23    }24    return missing;25  }26public boolean contains(List<?> list, Object element) {27    return list.contains(element);28  }29public boolean contains(Object o) {30    return indexOf(o) >= 0;31  }32public int indexOf(Object o) {33    if (o == null) {34      for (int i = 0; i < size; i++)35        if (elementData[i]==null)36          return i;37    } else {38      for (int i = 0; i < size; i++)39        if (o.equals(elementData[i]))40          return i;41    }42    return -1;43  }44public boolean equals(Object obj)

missingActualElements

Using AI Code Generation

1public class MissingElements {2    public static void main(String[] args) {3        List<Integer> actual = Arrays.asList(1, 2, 3, 4, 5);4        List<Integer> expected = Arrays.asList(1, 2, 4, 5);5        IterableDiff iterableDiff = new IterableDiff();6        List<Integer> missingElements = iterableDiff.missingActualElements(expected, actual);7        System.out.println("Missing elements are: " + missingElements);8    }9}

missingActualElements

Using AI Code Generation

1    public void test() {2        IterableDiff iterableDiff = new IterableDiff();3        List<String> actual = Arrays.asList("a", "b", "c", "d", "e", "f", "g", "h", "i", "j");4        List<String> expected = Arrays.asList("a", "b", "c", "d", "e", "f", "g", "h", "i");5        List<String> missingElements = iterableDiff.missingActualElements(actual, expected);6        System.out.println(missingElements);7    }8assertThat(missingElements).containsExactly("j");9assertThat(missingElements).containsOnly("j");10assertThat(missingElements).contains("j");11assertThat(missingElements).containsSequence("j");12assertThat(missingElements).hasSize(1);13assertThat(missingElements).hasSameSizeAs(expected);14assertThat(missingElements).hasSameSizeAs(actual);15assertThat(missingElements).containsExactlyInAnyOrder("j");16assertThat(missingElements).containsExactlyInAnyOrderElementsOf(expected);17assertThat(missingElements).containsExactlyInAnyOrderElementsOf(actual);18assertThat(missingElements).containsExactlyInAnyOrderElementsOf(missingElements);19assertThat(missingElements).containsExactlyInAnyOrderElementsOf(expected);20assertThat(missingElements).containsExactlyInAnyOrderElementsOf(actual);21assertThat(missingElements).containsExactlyInAnyOrderElementsOf(missingElements);22assertThat(missingElements).containsExactlyInAnyOrder("j");23assertThat(missingElements).containsExactlyInAnyOrderElementsOf(expected);24assertThat(missingElements).containsExactlyInAnyOrderElementsOf(actual);25assertThat(missingElements).containsExactlyInAnyOrderElementsOf(missingElements);26assertThat(missingElements).containsExactlyInAnyOrder("j");27assertThat(missingElements).containsExactlyInAnyOrderElementsOf(expected);28assertThat(missingElements).containsExactlyInAnyOrderElementsOf(actual);29assertThat(missingElements).containsExactlyInAnyOrderElementsOf(missingElements);30assertThat(missingElements).containsExactlyInAnyOrder("j");31assertThat(missingElements).containsExactlyInAnyOrderElementsOf(expected);32assertThat(missingElements).containsExactlyInAnyOrderElementsOf(actual

missingActualElements

Using AI Code Generation

1import org.assertj.core.api.Assertions;2import org.assertj.core.api.IterableAssert;3import org.assertj.core.internal.IterableDiff;4import org.assertj.core.internal.Iterables;5import org.assertj.core.internal.Objects;6import org.assertj.core.util.introspection.IntrospectionError;7import org.assertj.core.util.introspection.IntrospectionUtils;8import org.assertj.core.util.introspection.PropertyOrFieldSupport;9import java.util.ArrayList;10import java.util.Collection;11import java.util.List;12public class IterableAssertWithMissingActualElements extends IterableAssert<Object> {13    public IterableAssertWithMissingActualElements(Collection<?> actual) {14        super(actual);15    }16    public IterableAssert<Object> containsExactly(Object... values) {17        if (actual == null) {18            throw new AssertionError("Expecting actual not to be null");19        }20        if (values == null) {21            throw new AssertionError("Expecting values not to be null");22        }23        List<Object> actualAsList = new ArrayList<Object>(actual);24        List<Object> valuesAsList = new ArrayList<Object>(values.length);25        for (Object value : values) {26            valuesAsList.add(value);27        }28        List<Object> missing = new IterableDiff<Object>(actualAsList, valuesAsList).missingActualElements();29        if (!missing.isEmpty()) {30            throw new AssertionError("Expecting actual to contain exactly the elements of values but missing elements were: " + missing);31        }32        return this;33    }34}35import org.junit.Test;36import java.util.Arrays;37import java.util.List;38import static org.assertj.core.api.Assertions.assertThat;39public class IterableAssertWithMissingActualElementsTest {40    public void test() {41        List<String> list = Arrays.asList("one", "two", "three");42        assertThat(list).containsExactly("one", "two", "three", "four");43    }44}

missingActualElements

Using AI Code Generation

1import org.assertj.core.api.Assertions2import org.assertj.core.internal.IterableDiff3class IterableDiffTest {4    void testMissingActualElements() {5        def iterableDiff = new IterableDiff()6        def missingActualElements = iterableDiff.missingActualElements(actual, other)7        Assertions.assertThat(missingActualElements).isEmpty()8        missingActualElements = iterableDiff.missingActualElements(actual, other)9        Assertions.assertThat(missingActualElements).containsExactly(5)10        missingActualElements = iterableDiff.missingActualElements(actual, other)11        Assertions.assertThat(missingActualElements).containsExactly(5, 6)12        missingActualElements = iterableDiff.missingActualElements(actual, other)13        Assertions.assertThat(missingActualElements).containsExactly(5, 6, 7)14    }15}

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