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How to use duplicatesFrom method of org.assertj.core.internal.AbstractComparisonStrategy class

Best Assertj code snippet using org.assertj.core.internal.AbstractComparisonStrategy.duplicatesFrom

Source:AbstractComparisonStrategy.java

...22 * @author Joel Costigliola23 */24public abstract class AbstractComparisonStrategy implements ComparisonStrategy {25  @Override26  public Iterable<?> duplicatesFrom(Iterable<?> iterable) {27	if (isNullOrEmpty(iterable)) return EMPTY_SET;28	Set<Object> duplicates = newSetUsingComparisonStrategy();29	Set<Object> noDuplicates = newSetUsingComparisonStrategy();30	for (Object element : iterable) {31	  if (noDuplicates.contains(element)) {32		duplicates.add(element);33	  } else {34		noDuplicates.add(element);35	  }36	}37	return duplicates;38  }39  /**40   * Returns a {@link Set} honoring the comparison strategy used....

duplicatesFrom

Using AI Code Generation

1import org.assertj.core.api.Assertions;2import org.assertj.core.api.ListAssert;3import org.assertj.core.api.ListAssertBaseTest;4import org.assertj.core.internal.ComparatorBasedComparisonStrategy;5import org.assertj.core.internal.Lists;6import org.assertj.core.internal.OnFieldsComparator;7import org.assertj.core.util.introspection.FieldSupport;8import org.junit.jupiter.api.BeforeEach;9import org.junit.jupiter.api.Test;10import java.util.Comparator;11import java.util.List;12import static org.assertj.core.api.Assertions.assertThat;13import static org.assertj.core.error.ShouldContainDuplicates.shouldContainDuplicates;14import static org.assertj.core.util.AssertionsUtil.expectAssertionError;15import static org.assertj.core.util.Lists.newArrayList;16import static org.mockito.Mockito.*;17public class Lists_containsDuplicates_Test extends ListAssertBaseTest {18    private ComparatorBasedComparisonStrategy comparatorStrategy;19    private OnFieldsComparator comparator;20    public void setUp() {21        super.setUp();22        comparator = new OnFieldsComparator("id");23        comparatorStrategy = new ComparatorBasedComparisonStrategy(comparator);24        assertions.usingComparator(comparator);25        assertions.usingElementComparator(comparator);26        assertions.usingDefaultComparator();27    }28    public void should_pass_if_actual_contains_duplicates_according_to_custom_comparison_strategy() {29        List<Employee> actual = newArrayList(new Employee(1, "John"), new Employee(2, "Jane"), new Employee(1, "Jack"));30        assertions.usingComparatorForElementFieldsWithNames(comparator, "id").usingElementComparator(comparator).usingComparisonStrategy(comparatorStrategy).containsDuplicates();31    }32    public void should_fail_if_actual_is_empty_whatever_custom_comparison_strategy_is() {33        List<Employee> actual = newArrayList();34        AssertionError assertionError = expectAssertionError(() -> assertThat(actual).usingComparisonStrategy(comparatorStrategy).containsDuplicates());35        verify(failures).failure(info, shouldContainDuplicates(actual));36    }37    public void should_fail_if_actual_does_not_contain_duplicates_according_to_custom_comparison_strategy() {38        List<Employee> actual = newArrayList(new Employee(1, "John"), new Employee(2, "Jane"), new Employee(3, "Jack"));39        AssertionError assertionError = expectAssertionError(() -> assertThat(actual).usingComparisonStrategy(comparatorStrategy).containsDuplicates());40        verify(failures).failure

duplicatesFrom

Using AI Code Generation

1import org.assertj.core.api.Assertions;2import org.assertj.core.internal.StandardComparisonStrategy;3import org.assertj.core.util.Lists;4import java.util.List;5public class DuplicatesFromTest {6    public static void main(String[] args) {7        List<String> list1 = Lists.list("a", "b", "c", "d");8        List<String> list2 = Lists.list("a", "b", "c", "d");9        List<String> list3 = Lists.list("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        List<String> duplicates = StandardComparisonStrategy.instance().duplicatesFrom(list1, list2);11        Assertions.assertThat(duplicates).isEmpty();12        duplicates = StandardComparisonStrategy.instance().duplicatesFrom(list1, list3);13        Assertions.assertThat(duplicates).containsExactly("a", "b", "c", "d");14    }15}

duplicatesFrom

Using AI Code Generation

1import org.assertj.core.api.Assertions;2import org.assertj.core.api.ListAssert;3import org.assertj.core.api.ListAssertBaseTest;4import org.assertj.core.internal.Failures;5import org.assertj.core.internal.StandardComparisonStrategy;6import org.assertj.core.test.ExpectedException;7import org.assertj.core.util.Lists;8import org.junit.Before;9import org.junit.Rule;10import org.junit.Test;11import java.util.List;12import static org.assertj.core.api.Assertions.assertThat;13import static org.assertj.core.error.ShouldContainDuplicates.shouldContainDuplicates;14import static org.assertj.core.test.TestData.someInfo;15import static org.assertj.core.util.FailureMessages.actualIsNull;16import static org.assertj.core.util.Lists.newArrayList;17import static org.mockito.Mockito.verify;18public class ListAssert_duplicatesFrom_Test extends ListAssertBaseTest {19    public ExpectedException thrown = ExpectedException.none();20    private Failures failures;21    public void setUp() {22        failures = spy(new Failures());23        assertions.failures = failures;24    }25    public void should_fail_if_actual_is_null() {26        thrown.expectAssertionError(actualIsNull());27        assertThat((List<String>) null).duplicatesFrom(StandardComparisonStrategy.instance());28    }29    public void should_pass_if_actual_contains_duplicates_according_to_custom_comparison_strategy() {30        List<String> actual = newArrayList("Luke", "Luke", "Yoda", "Yoda");31        assertions.usingComparisonStrategy(StandardComparisonStrategy.instance()).duplicatesFrom(actual);32    }33    public void should_fail_if_actual_does_not_contain_duplicates_according_to_custom_comparison_strategy() {34        List<String> actual = newArrayList("Luke", "Yoda");35        try {36            assertions.usingComparisonStrategy(StandardComparisonStrategy.instance()).duplicatesFrom(actual);37        } catch (AssertionError e) {38            verify(failures).failure(info, shouldContainDuplicates(actual, StandardComparisonStrategy.instance()));39            return;40        }41        failBecauseExpectedAssertionErrorWasNotThrown();42    }43    protected ListAssert<String> invoke_api_method() {44        return assertions.duplicatesFrom(newArrayList("Luke", "Luke", "Yoda", "Yoda"));45    }46    protected void verify_internal_effects() {47        verify(iterables).assertContainsDuplicates(getInfo(assertions), getActual(assertions), newArrayList("Luke", "Luke", "Yoda", "Yoda"));48    }49}

duplicatesFrom

Using AI Code Generation

1public class AbstractComparisonStrategyTest {2    public static void main(String[] args) {3        AbstractComparisonStrategy abstractComparisonStrategy = new AbstractComparisonStrategy() {4            protected boolean areEqual(Object o1, Object o2) {5                return false;6            }7        };8        List<String> list = new ArrayList<>();

duplicatesFrom

Using AI Code Generation

1import org.assertj.core.api.Assertions;2import org.assertj.core.internal.StandardComparisonStrategy;3import org.assertj.core.util.Lists;4import java.util.List;5public class DuplicatesFromTest {6    public static void main(String[] args) {7        List<String> list = Lists.newArrayList("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");8        List<String> duplicateList = Lists.newArrayList("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", "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> duplicates = new StandardComparisonStrategy().duplicatesFrom(list);10        List<String> duplicateDuplicates = new StandardComparisonStrategy().duplicatesFrom(duplicateList);11        System.out.println("duplicates: " + duplicates);12        System.out.println("duplicateDuplicates: " + duplicateDuplicates);13    }14}

duplicatesFrom

Using AI Code Generation

1import org.assertj.core.api.Assertions;2import org.assertj.core.internal.StandardComparisonStrategy;3import org.assertj.core.util.Lists;4import java.util.List;5public class DuplicatesFromTest {6    public static void main(String[] args) {7        List<String> list = Lists.newArrayList("a",

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