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

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

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...683 final Object actualFieldValue = dualValue.actual;684 final Object expectedFieldValue = dualValue.expected;685 /​/​ check field comparators as they take precedence over type comparators686 Comparator fieldComparator = recursiveComparisonConfiguration.getComparatorForField(fieldName);687 if (fieldComparator != null) return areEqualUsingComparator(actualFieldValue, expectedFieldValue, fieldComparator);688 /​/​ check if a type comparators exist for the field type689 Class fieldType = actualFieldValue != null ? actualFieldValue.getClass() : expectedFieldValue.getClass();690 Comparator typeComparator = recursiveComparisonConfiguration.getComparatorForType(fieldType);691 if (typeComparator != null) return areEqualUsingComparator(actualFieldValue, expectedFieldValue, typeComparator);692 /​/​ default comparison using equals693 return deepEquals(actualFieldValue, expectedFieldValue);694 }695 private static boolean areEqualUsingComparator(final Object actual, final Object expected, Comparator<Object> comparator) {696 try {697 return comparator.compare(actual, expected) == 0;698 } catch (ClassCastException e) {699 /​/​ this occurs when comparing field of different types, Person.id is an int and PersonDto.id is a long700 return false;701 }702 }703 private static ComparisonDifference expectedAndActualTypeDifference(Object actual, Object expected) {704 String additionalInformation = format("actual and expected are considered different since the comparison enforces strict type check and expected type %s is not a subtype of actual type %s",705 expected.getClass().getName(), actual.getClass().getName());706 return rootComparisonDifference(actual, expected, additionalInformation);707 }708 /​/​ TODO should be checking actual!709 private static boolean expectedTypeIsNotSubtypeOfActualType(DualValue dualField) {...

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areEqualUsingComparator

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1import static org.assertj.core.api.Assertions.assertThat;2import static org.assertj.core.api.recursive.comparison.RecursiveComparisonDifferenceCalculator.areEqualUsingComparator;3import java.util.Comparator;4import org.assertj.core.api.recursive.comparison.Difference;5import org.assertj.core.api.recursive.comparison.RecursiveComparisonConfiguration;6import org.assertj.core.api.recursive.comparison.RecursiveComparisonDifferenceCalculator;7import org.assertj.core.api.recursive.comparison.RecursiveComparisonDifferenceCalculatorTest;8import org.assertj.core.test.Employee;9import org.assertj.core.test.Jedi;10import org.assertj.core.test.Name;11import org.assertj.core.test.Person;12import org.assertj.core.test.RecursiveComparisonConfigurationWithIgnoredFields;13import org.junit.jupiter.api.Test;14class RecursiveComparisonConfigurationWithIgnoredFieldsTest {15 void should_use_RecursiveComparisonConfiguration_with_ignored_fields() {16 Jedi actual = new Jedi("Yoda", "Green");17 Person expected = new Person(new Name("Yoda"));18 RecursiveComparisonConfiguration recursiveComparisonConfiguration = new RecursiveComparisonConfigurationWithIgnoredFields();19 boolean equal = areEqualUsingComparator(actual, expected, recursiveComparisonConfiguration);20 assertThat(equal).isTrue();21 }22 void should_ignore_fields_in_comparator() {23 Employee luke = new Employee(new Name("Luke"));24 Employee yoda = new Employee(new Name("Yoda"));25 RecursiveComparisonConfiguration recursiveComparisonConfiguration = new RecursiveComparisonConfigurationWithIgnoredFields();26 boolean equal = areEqualUsingComparator(luke, yoda, recursiveComparisonConfiguration);27 assertThat(equal).isTrue();28 }29 void should_ignore_fields_in_comparator_when_comparing_to_null() {30 Employee luke = new Employee(new Name("Luke"));31 RecursiveComparisonConfiguration recursiveComparisonConfiguration = new RecursiveComparisonConfigurationWithIgnoredFields();32 boolean equal = areEqualUsingComparator(luke, null, recursiveComparisonConfiguration);33 assertThat(equal).isFalse();34 }35 void should_ignore_fields_in_comparator_when_comparing_null_to_null() {36 RecursiveComparisonConfiguration recursiveComparisonConfiguration = new RecursiveComparisonConfigurationWithIgnoredFields();37 boolean equal = areEqualUsingComparator(null, null, recursiveComparisonConfiguration);

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areEqualUsingComparator

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1import static org.assertj.core.api.Assertions.assertThat;2import static org.assertj.core.api.recursive.comparison.RecursiveComparisonDifferenceCalculator.areEqualUsingComparator;3import static org.assertj.core.api.recursive.comparison.RecursiveComparisonDifferenceCalculator.differencesFound;4import java.util.Comparator;5import java.util.List;6import org.assertj.core.api.recursive.comparison.Difference;7import org.junit.jupiter.api.Test;8class RecursiveComparisonDifferenceCalculatorTest {9 void should_return_true_if_objects_are_equal_using_comparator() {10 Comparator<String> stringComparator = (s1, s2) -> s1.length() == s2.length();11 boolean areEqual = areEqualUsingComparator("a", "bb", stringComparator);12 assertThat(areEqual).isTrue();13 }14 void should_return_false_if_objects_are_not_equal_using_comparator() {15 Comparator<String> stringComparator = (s1, s2) -> s1.length() == s2.length();16 boolean areEqual = areEqualUsingComparator("a", "bbb", stringComparator);17 assertThat(areEqual).isFalse();18 }19 void should_return_differences_if_objects_are_not_equal_using_comparator() {20 Comparator<String> stringComparator = (s1, s2) -> s1.length() == s2.length();21 List<Difference> differences = differencesFound("a", "bbb", stringComparator);22 assertThat(differences).hasSize(1);23 assertThat(differences.get(0).getValue()).isEqualTo("a");24 assertThat(differences.get(0).getExpected()).isEqualTo("bbb");25 }26}

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areEqualUsingComparator

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1import org.assertj.core.api.recursive.comparison.RecursiveComparisonDifferenceCalculator;2import org.assertj.core.api.recursive.comparison.RecursiveComparisonDifference;3public class Test {4 public static void main(String[] args) {5 String a = "abcd";6 String b = "abcd";7 RecursiveComparisonDifferenceCalculator recursiveComparisonDifferenceCalculator = new RecursiveComparisonDifferenceCalculator();8 RecursiveComparisonDifference recursiveComparisonDifference = recursiveComparisonDifferenceCalculator.calculateDifferences(a, b);9 boolean isEqual = recursiveComparisonDifference == null;10 System.out.println(isEqual);11 }12}

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areEqualUsingComparator

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1import org.assertj.core.api.recursive.comparison.RecursiveComparisonDifferenceCalculator;2import org.assertj.core.api.recursive.comparison.RecursiveComparisonDifference;3import java.util.List;4import java.util.Comparator;5public class AssertJComparatorExample {6 public static void main(String[] args) {7 Person person1 = new Person("John", 35, "NY");8 Person person2 = new Person("John", 35, "NY");9 Person person3 = new Person("John", 36, "NY");10 boolean isEqual = RecursiveComparisonDifferenceCalculator.areEqualUsingComparator(person1, person2, new PersonComparator());11 System.out.println("person1 and person2 are equal: " + isEqual);12 isEqual = RecursiveComparisonDifferenceCalculator.areEqualUsingComparator(person1, person3, new PersonComparator());13 System.out.println("person1 and person3 are equal: " + isEqual);14 isEqual = RecursiveComparisonDifferenceCalculator.areEqualUsingComparator(person1, person2, new PersonComparator());15 System.out.println("person1 and person2 are equal: " + isEqual);16 List<RecursiveComparisonDifference> differences = RecursiveComparisonDifferenceCalculator.calculateDifferencesUsingComparator(person1, person3, new PersonComparator());17 System.out.println("person1 and person3 differences: " + differences);18 }19}20class Person {21 private String name;22 private int age;23 private String address;24 public Person(String name, int age, String address) {25 this.name = name;26 this.age = age;27 this.address = address;28 }29 public String getName() {30 return name;31 }32 public int getAge() {33 return age;34 }35 public String getAddress() {36 return address;37 }38}39class PersonComparator implements Comparator<Person> {40 public int compare(Person p1, Person p2) {41 if (p1.getAge() == p2.getAge()) {42 return 0;43 } else {44 return -1;45 }46 }47}

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areEqualUsingComparator

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1import org.assertj.core.api.recursive.comparison.RecursiveComparisonDifferenceCalculator;2Person p1 = new Person("John", 30);3Person p2 = new Person("John", 30);4RecursiveComparisonDifferenceCalculator calculator = new RecursiveComparisonDifferenceCalculator();5List<RecursiveComparisonDifference> differences = calculator.calculateDifferences(p1, p2);6differences.forEach(System.out::println);7isListSizeOnlyAndOrderMattersAndNotCyclic(): This method is used to check whether the list size is only

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areEqualUsingComparator

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1import static org.assertj.core.api.Assertions.*;2import static org.assertj.core.api.recursive.comparison.RecursiveComparisonDifferenceCalculator.areEqualUsingComparator;3import java.util.Comparator;4import org.assertj.core.test.Person;5import org.assertj.core.test.Name;6import org.assertj.core.test.Jedi;7import org.assertj.core.test.Employee;8import org.assertj.core.test.Employee.EmployeeBuilder;9import org.assertj.core.test.Employee.EmployeeComparator;10import org.assertj.core.test.Employee.EmployeeWithCustomComparator;11import org.assertj.core.test.Employee.EmployeeWithCustomComparator.EmployeeWithCustomComparatorBuilder;12import org.junit.Test;13public class RecursiveComparisonDifferenceCalculatorTest {14 public void testAreEqualUsingComparator() {15 EmployeeBuilder employeeBuilder = Employee.builder()16 .id(1)17 .name("Yoda")18 .age(800)19 .address("Death Star")20 .phoneNumbers("123456789")21 .phoneNumbers("987654321");22 Employee employee = employeeBuilder.build();23 EmployeeWithCustomComparatorBuilder employeeWithCustomComparatorBuilder = EmployeeWithCustomComparator.builder()24 .id(1)25 .name("Yoda")26 .age(800)27 .address("Death Star")28 .phoneNumbers("123456789")29 .phoneNumbers("987654321");30 EmployeeWithCustomComparator employeeWithCustomComparator = employeeWithCustomComparatorBuilder.build();31 assertThat(areEqualUsingComparator(employee, employeeWithCustomComparator, new EmployeeComparator())).isTrue();32 }33}34package org.assertj.core.api.recursive.comparison;35import static org.assertj.core.api.Assertions.assertThat;36import static org.assertj.core.api.recursive.comparison.RecursiveComparisonDifferenceCalculator.areEqualUsingComparator;37import java.util.Comparator;38import org.assertj.core.test.Person;39import org.assertj.core.test.Name;40import org.assertj.core.test.Jedi;41import org.assertj.core.test.Employee;42import org.assertj.core.test.Employee.EmployeeBuilder;43import org.assertj.core.test.Employee.EmployeeComparator;44import org.assertj.core.test.Employee.EmployeeWithCustomComparator;45import org.assertj.core.test.Employee.EmployeeWithCustomComparator.EmployeeWithCustomComparatorBuilder;46import org.junit.Test;47public class RecursiveComparisonDifferenceCalculatorTest {48 public void testAreEqualUsingComparator() {

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