How to use ByFieldsComparison method of org.assertj.core.internal.Objects class

Best Assertj code snippet using org.assertj.core.internal.Objects.ByFieldsComparison

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...508 * @throws IntrospectionError if a field does not exist in actual.509 */​510 public <A> void assertIsEqualToComparingOnlyGivenFields(AssertionInfo info, A actual, A other, String... fields) {511 assertNotNull(info, actual);512 ByFieldsComparison byFieldsComparison = isEqualToComparingOnlyGivenFields(actual, other, fields);513 if (byFieldsComparison.isFieldsNamesNotEmpty())514 throw failures.failure(info, shouldBeEqualComparingOnlyGivenFields(actual, byFieldsComparison.fieldsNames,515 byFieldsComparison.rejectedValues,516 byFieldsComparison.expectedValues,517 newArrayList(fields)));518 }519 private <A> ByFieldsComparison isEqualToComparingOnlyGivenFields(A actual, A other, String[] fields) {520 List<String> rejectedFieldsNames = new LinkedList<>();521 List<Object> expectedValues = new LinkedList<>();522 List<Object> rejectedValues = new LinkedList<>();523 for (String fieldName : fields) {524 Object actualFieldValue = getPropertyOrFieldValue(actual, fieldName);525 Object otherFieldValue = getPropertyOrFieldValue(other, fieldName);526 if (!org.assertj.core.util.Objects.areEqual(actualFieldValue, otherFieldValue)) {527 rejectedFieldsNames.add(fieldName);528 expectedValues.add(otherFieldValue);529 rejectedValues.add(actualFieldValue);530 }531 }532 return new ByFieldsComparison(rejectedFieldsNames, expectedValues, rejectedValues);533 }534 /​**535 * Assert that the given object is lenient equals to the other by comparing all fields (including inherited fields)536 * unless given ignored ones.537 *538 * @param info contains information about the assertion.539 * @param actual the given object.540 * @param other the object to compare {@code actual} to.541 * @param fields the fields to ignore in comparison542 * @throws NullPointerException if the other type is {@code null}.543 * @throws AssertionError if actual is {@code null}.544 * @throws AssertionError if the actual and the given object are not lenient equals.545 * @throws AssertionError if the other object is not an instance of the actual type.546 */​547 public <A> void assertIsEqualToIgnoringGivenFields(AssertionInfo info, A actual, A other, String... fields) {548 assertNotNull(info, actual);549 ByFieldsComparison byFieldsComparison = isEqualToIgnoringGivenFields(actual, other, fields);550 if (byFieldsComparison.isFieldsNamesNotEmpty())551 throw failures.failure(info, shouldBeEqualToIgnoringGivenFields(actual, byFieldsComparison.fieldsNames,552 byFieldsComparison.rejectedValues,553 byFieldsComparison.expectedValues,554 newArrayList(fields)));555 }556 private <A> ByFieldsComparison isEqualToIgnoringGivenFields(A actual, A other, String[] givenIgnoredFields) {557 Set<Field> declaredFieldsIncludingInherited = getDeclaredFieldsIncludingInherited(actual.getClass());558 List<String> fieldsNames = new LinkedList<>();559 List<Object> expectedValues = new LinkedList<>();560 List<Object> rejectedValues = new LinkedList<>();561 Set<String> ignoredFields = newLinkedHashSet(givenIgnoredFields);562 for (Field field : declaredFieldsIncludingInherited) {563 /​/​ ignore private field if user has decided not to use them in comparison564 if (ignoredFields.contains(field.getName()) || !canReadFieldValue(field, actual)) {565 continue;566 }567 Object actualFieldValue = getPropertyOrFieldValue(actual, field.getName());568 Object otherFieldValue = getPropertyOrFieldValue(other, field.getName());569 if (!org.assertj.core.util.Objects.areEqual(actualFieldValue, otherFieldValue)) {570 fieldsNames.add(field.getName());571 rejectedValues.add(actualFieldValue);572 expectedValues.add(otherFieldValue);573 }574 }575 return new ByFieldsComparison(fieldsNames, expectedValues, rejectedValues);576 }577 private <A> boolean canReadFieldValue(Field field, A actual) {578 return fieldSupport.isAllowedToRead(field) || propertySupport.publicGetterExistsFor(field.getName(), actual);579 }580 /​**581 * Get property value first and in case of error try field value.582 * <p>583 * This method supports nested field/​property (e.g. "address.street.number").584 *585 * @param a the object to get field value from586 * @param fieldName Field name to read, can be nested587 * @return (nested) field value or property value if field was not accessible.588 * @throws IntrospectionError is field value can't get retrieved.589 */​590 private <A> Object getPropertyOrFieldValue(A a, String fieldName) {591 return PropertyOrFieldSupport.COMPARISON.getValueOf(fieldName, a);592 }593 /​**594 * Returns the declared fields of given class and its superclasses stopping at superclass in <code>java.lang</​code>595 * package whose fields are not included.596 *597 * @param clazz the class we want the declared fields.598 * @return the declared fields of given class and its superclasses.599 */​600 private static Set<Field> getDeclaredFieldsIncludingInherited(Class<?> clazz) {601 checkNotNull(clazz, "expecting Class parameter not to be null");602 Set<Field> declaredFields = newLinkedHashSet(clazz.getDeclaredFields());603 /​/​ get fields declared in superclass604 Class<?> superclazz = clazz.getSuperclass();605 while (superclazz != null && !superclazz.getName().startsWith("java.lang")) {606 declaredFields.addAll(newLinkedHashSet(superclazz.getDeclaredFields()));607 superclazz = superclazz.getSuperclass();608 }609 return declaredFields;610 }611 public boolean areEqualToIgnoringGivenFields(Object actual, Object other, String... fields) {612 return isEqualToIgnoringGivenFields(actual, other, fields).isFieldsNamesEmpty();613 }614 public boolean areEqualToComparingOnlyGivenFields(Object actual, Object other, String... fields) {615 return isEqualToComparingOnlyGivenFields(actual, other, fields).isFieldsNamesEmpty();616 }617 public <A> void assertHasFieldOrProperty(AssertionInfo info, A actual, String name) {618 assertNotNull(info, actual);619 try {620 extractPropertyOrField(actual, name);621 } catch (IntrospectionError error) {622 throw failures.failure(info, shouldHavePropertyOrField(actual, name));623 }624 }625 public <A> void assertHasFieldOrPropertyWithValue(AssertionInfo info, A actual, String name, Object expectedValue) {626 assertHasFieldOrProperty(info, actual, name);627 Object value = extractPropertyOrField(actual, name);628 if (!org.assertj.core.util.Objects.areEqual(value, expectedValue))629 throw failures.failure(info, shouldHavePropertyOrFieldWithValue(actual, name, expectedValue, value));630 }631 private <A> Object extractPropertyOrField(A actual, String name) {632 return PropertyOrFieldSupport.EXTRACTION.getValueOf(name, actual);633 }634 public static class ByFieldsComparison {635 private final List<String> fieldsNames;636 private final List<Object> expectedValues;637 private final List<Object> rejectedValues;638 public ByFieldsComparison(final List<String> fieldsNames,639 final List<Object> expectedValues,640 final List<Object> rejectedValues) {641 this.fieldsNames = fieldsNames;642 this.expectedValues = expectedValues;643 this.rejectedValues = rejectedValues;644 }645 public ByFieldsComparison() {646 this(new ArrayList<String>(), new ArrayList<>(), new ArrayList<>());647 }648 public boolean isFieldsNamesEmpty() {649 return fieldsNames.isEmpty();650 }651 public boolean isFieldsNamesNotEmpty() {652 return !isFieldsNamesEmpty();653 }654 }655}...

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ByFieldsComparison

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1import org.assertj.core.api.Assertions;2import org.assertj.core.internal.Objects;3import org.junit.Test;4public class ObjectsByFieldsComparisonTest {5 public void test() {6 Objects objects = Objects.instance();7 Employee employee1 = new Employee("John", "Doe", 25);8 Employee employee2 = new Employee("John", "Doe", 25);9 objects.assertIsEqualToComparingFieldByFieldRecursively(Assertions.assertThat(employee1), employee2);10 }11 static class Employee {12 private String firstName;13 private String lastName;14 private int age;15 public Employee(String firstName, String lastName, int age) {16 this.firstName = firstName;17 this.lastName = lastName;18 this.age = age;19 }20 public String getFirstName() {21 return firstName;22 }23 public String getLastName() {24 return lastName;25 }26 public int getAge() {27 return age;28 }29 }30}31at org.assertj.core.internal.Objects.assertIsEqualToComparingFieldByFieldRecursively(Objects.java:206)

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ByFieldsComparison

Using AI Code Generation

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1public void shouldCompareTwoObjectsByFields() {2 Person person1 = new Person("John", "Doe", 25);3 Person person2 = new Person("John", "Doe", 25);4 assertThat(person1).usingComparatorForFields((p1, p2) -> {5 assertThat(p1).hasNoNullFieldsOrProperties();6 assertThat(p2).hasNoNullFieldsOrProperties();7 return Integer.compare(p1.getAge(), p2.getAge());8 }, "age").isEqualTo(person2);9}10public class Person {11 private final String firstName;12 private final String lastName;13 private final int age;14 public Person(String firstName, String lastName, int age) {15 this.firstName = firstName;16 this.lastName = lastName;17 this.age = age;18 }19 public String getFirstName() {20 return firstName;21 }22 public String getLastName() {23 return lastName;24 }25 public int getAge() {26 return age;27 }28}29public class Person {30 private final String firstName;31 private final String lastName;32 private final int age;33 public Person(String firstName, String lastName, int age) {34 this.firstName = firstName;35 this.lastName = lastName;36 this.age = age;37 }38 public String getFirstName() {39 return firstName;40 }41 public String getLastName() {42 return lastName;43 }44 public int getAge() {45 return age;46 }47}

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ByFieldsComparison

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1public void testByFieldsComparison() {2 Objects objects = new Objects();3 assertThat(objects.areEqualByComparingFields(actual, expected)).isFalse();4}5public void testByFieldsComparison() {6 Objects objects = new Objects();7 assertThat(objects.areEqualByComparingFields(actual, expected)).isFalse();8}9public void testByFieldsComparison() {10 Objects objects = new Objects();11 assertThat(objects.areEqualByComparingFields(actual, expected)).isFalse();12}13public void testByFieldsComparison() {14 Objects objects = new Objects();15 assertThat(objects.areEqualByComparingFields(actual, expected)).isFalse();16}17public void testByFieldsComparison() {18 Objects objects = new Objects();19 assertThat(objects.areEqualByComparingFields(actual, expected)).isFalse();20}21public void testByFieldsComparison() {22 Objects objects = new Objects();23 assertThat(objects.areEqualByComparingFields(actual, expected)).isFalse();24}25public void testByFieldsComparison() {26 Objects objects = new Objects();27 assertThat(objects.areEqualByComparingFields(actual, expected)).isFalse();28}29public void testByFieldsComparison() {30 Objects objects = new Objects();31 assertThat(objects.areEqualByComparingFields(actual, expected)).isFalse();32}33public void testByFieldsComparison() {

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