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How to use ByNameMultipleExtractor class of org.assertj.core.extractor package

Best Assertj code snippet using org.assertj.core.extractor.ByNameMultipleExtractor

Source: ByNameMultipleExtractorTest.java

...22import org.assertj.core.test.Name;23import org.assertj.core.util.introspection.IntrospectionError;24import org.junit.jupiter.api.DisplayName;25import org.junit.jupiter.api.Test;26@DisplayName("ByNameMultipleExtractor")27class ByNameMultipleExtractorTest {28  private static final Employee YODA = new Employee(1L, new Name("Yoda"), 800);29  @Test30  void should_extract_tuples_from_fields_or_properties() {31    // GIVEN32    ByNameMultipleExtractor underTest = new ByNameMultipleExtractor("id", "age");33    // WHEN34    Tuple result = underTest.apply(YODA);35    // THEN36    then(result).isEqualTo(tuple(1L, 800));37  }38  @Test39  void should_extract_tuples_with_consistent_iteration_order() {40    // GIVEN41    ByNameMultipleExtractor underTest = new ByNameMultipleExtractor("id", "name.first", "age");42    // WHEN43    Tuple result = underTest.apply(YODA);44    // THEN45    then(result).isEqualTo(tuple(1L, "Yoda", 800));46  }47  @Test48  void should_throw_error_when_no_property_nor_public_field_match_one_of_given_names() {49    // GIVEN50    ByNameMultipleExtractor underTest = new ByNameMultipleExtractor("id", "name.first", "unknown");51    // WHEN52    Throwable thrown = catchThrowable(() -> underTest.apply(YODA));53    // THEN54    then(thrown).isInstanceOf(IntrospectionError.class);55  }56  @Test57  void should_throw_exception_when_given_name_is_null() {58    // GIVEN59    ByNameMultipleExtractor underTest = new ByNameMultipleExtractor((String[]) null);60    // WHEN61    Throwable thrown = catchThrowable(() -> underTest.apply(YODA));62    // THEN63    then(thrown).isInstanceOf(IllegalArgumentException.class)64                .hasMessage("The names of the fields/properties to read should not be null");65  }66  @Test67  void should_throw_exception_when_given_name_is_empty() {68    // GIVEN69    ByNameMultipleExtractor underTest = new ByNameMultipleExtractor(); // empty vararg array70    // WHEN71    Throwable thrown = catchThrowable(() -> underTest.apply(YODA));72    // THEN73    then(thrown).isInstanceOf(IllegalArgumentException.class)74                .hasMessage("The names of the fields/properties to read should not be empty");75  }76  @Test77  void should_throw_exception_when_no_object_is_given() {78    // GIVEN79    ByNameMultipleExtractor underTest = new ByNameMultipleExtractor("id", "name.first", "age");80    // WHEN81    Throwable thrown = catchThrowable(() -> underTest.apply(null));82    // THEN83    then(thrown).isInstanceOf(IllegalArgumentException.class)84                .hasMessage("The object to extract fields/properties from should not be null");85  }86  @Test87  void should_extract_multiple_values_from_map_by_keys() {88    // GIVEN89    Employee luke = new Employee(2L, new Name("Luke"), 22);90    Map<String, Employee> map = mapOf(entry("key1", YODA), entry("key2", luke), entry("key3", null));91    ByNameMultipleExtractor underTest = new ByNameMultipleExtractor("key1", "key2", "key3");92    // WHEN93    Tuple result = underTest.apply(map);94    // THEN95    then(result).isEqualTo(tuple(YODA, luke, null));96  }97  @Test98  void should_throw_error_with_map_when_non_existing_key_is_given() {99    // GIVEN100    Employee luke = new Employee(2L, new Name("Luke"), 22);101    Map<String, Employee> map = mapOf(entry("key1", YODA), entry("key2", luke));102    ByNameMultipleExtractor underTest = new ByNameMultipleExtractor("key1", "key2", "bad key");103    // WHEN104    Throwable thrown = catchThrowable(() -> underTest.apply(YODA));105    // THEN106    then(thrown).isInstanceOf(IntrospectionError.class);107  }108}...

ByNameMultipleExtractor

Using AI Code Generation

1import static org.assertj.core.extractor.Extractors.byNameMultiple;2import static org.assertj.core.api.Assertions.assertThat;3import java.util.List;4import java.util.Map;5import java.util.Set;6import org.assertj.core.api.Assertions;7import org.assertj.core.api.Condition;8import org.assertj.core.api.MapAssert;9import org.assertj.core.api.MapAssert.Entry;10import org.assertj.core.api.MapAssert.EntryAssert;11import org.assertj.core.api.MapAssert.MapEntryAssert;12import org.assertj.core.api.MapAssert.ValueAssert;13import org.assertj.core.extractor.Extractors;14import org.assertj.core.groups.Tuple;15import org.assertj.core.util.Lists;16import org.assertj.core.util.Maps;17import org.assertj.core.util.Sets;18import org.junit.Test;19public class MapAssertTest {20    private Map<String, Object> map = Maps.newHashMap("name", "Yoda", "color", "green", "age", 800, "power", "the force");21    public void should_allow_assertions_on_map_keys() {22        assertThat(map).extractingByKey("name").isEqualTo("Yoda");23    }24    public void should_allow_assertions_on_map_values() {25        assertThat(map).extractingByValue("Yoda").isEqualTo("Yoda");26    }27    public void should_allow_assertions_on_map_entries() {28        assertThat(map).extractingByKey("name").isEqualTo("Yoda");29    }30    public void should_allow_assertions_on_map_entries_using_extractors() {31        assertThat(map).extracting(Extractors.byName("name")).isEqualTo("Yoda");32    }33    public void should_allow_assertions_on_map_entries_using_multiple_extractors() {34        assertThat(map).extracting(Extractors.byNameMultiple("name", "age")).containsExactly("Yoda", 800);35    }36    public void should_allow_assertions_on_map_entries_using_multiple_extractors_with_tuples() {37        assertThat(map).extracting(Extractors.byNameMultiple("name", "age")).containsExactly(Tuple.tuple("Yoda", 800));38    }39    public void should_allow_assertions_on_map_entries_using_multiple_extractors_with_tuples_and_condition() {40        assertThat(map).extracting(Extractors.byNameMultiple("name", "age")).areExactly(1, new Condition<Tuple>() {41            public boolean matches(Tuple

ByNameMultipleExtractor

Using AI Code Generation

1import org.assertj.core.extractor.*;2List<Person> persons = new ArrayList<>();3persons.add(new Person("John", 25));4persons.add(new Person("Jane", 22));5persons.add(new Person("Adam", 23));6persons.add(new Person("Adam", 27));7List<String> names = ByNameMultipleExtractor.extract(persons, "name");8assertThat(names).containsExactly("John", "Jane", "Adam", "Adam");9The ByNameMultipleExtractor class has a static method named extract() that takes two parameters:10import static org.assertj.core.api.Assertions.*;11import java.util.*;12class Person {13  private String name;14  private int age;15  public Person(String name, int age) {16    this.name = name;17    this.age = age;18  }19  public String getName() {20    return name;21  }22  public int getAge() {23    return age;24  }25}26class Test {27  public static void main(String[] args) {28    List<Person> persons = new ArrayList<>();29    persons.add(new Person("John", 25));30    persons.add(new Person("Jane", 22));31    persons.add(new Person("Adam", 23));32    persons.add(new Person("Adam", 27));33    List<Integer> ages = ByNameMultipleExtractor.extract(persons, "age");34    assertThat(ages).containsExactly(25, 22, 23, 27);35  }36}

ByNameMultipleExtractor

Using AI Code Generation

1import static org.assertj.core.api.Assertions.assertThat;2import static org.assertj.core.extractor.Extractors.byNameMultiple;3import java.util.List;4import org.junit.Test;5import com.google.common.collect.Lists;6public class ByNameMultipleExtractorTest {7	public void byNameMultipleExtractorTest() {8		List<Employee> employees = Lists.newArrayList(9				new Employee("John", "Doe", 30),10				new Employee("Jane", "Doe", 29),11				new Employee("Jack", "Doe", 2));12		List<String> firstNames = assertThat(employees).extracting(byNameMultiple("firstName", "lastName")).asList();13		assertThat(firstNames).containsExactly("John Doe", "Jane Doe", "Jack Doe");14	}15	public class Employee {16		private String firstName;17		private String lastName;18		private int age;19		public Employee(String firstName, String lastName, int age) {20			this.firstName = firstName;21			this.lastName = lastName;22			this.age = age;23		}24		public String getFirstName() {25			return firstName;26		}27		public String getLastName() {28			return lastName;29		}30		public int getAge() {31			return age;32		}33	}34}35import static org.assertj.core.api.Assertions.assertThat;36import static org.assertj.core.extractor.Extractors.byIndex;37import java.util.List;38import org.junit.Test;39import com.google.common.collect.Lists;40public class ByIndexExtractorTest {41	public void byIndexExtractorTest() {42		List<String> names = Lists.newArrayList("John", "Jane", "Jack");43		String name = assertThat(names).extracting(byIndex(1)).asString();44		assertThat(name).isEqualTo("Jane");45	}46}47import static

ByNameMultipleExtractor

Using AI Code Generation

1public void whenExtractingNames_thenCorrect() {2  List<Employee> employees = getEmployees();3  List<String> names = Extractors.byNameMultiple("name", String.class).extract(employees);4  assertThat(names).contains("John", "Jane", "Dave");5}6public void whenExtractingNames_thenCorrect() {7  List<Employee> employees = getEmployees();

ByNameMultipleExtractor

Using AI Code Generation

1import org.assertj.core.extractor.*;2import org.assertj.core.api.*;3import org.assertj.core.util.*;4public class ByNameMultipleExtractorTest {5   public static void main(String[] args) {6      List<Person> persons = new ArrayList<>();7      persons.add(new Person("John", "Doe", 40));8      persons.add(new Person("Jane", "Doe", 35));9      persons.add(new Person("John", "Smith", 45));10      List<String> firstNames = ByNameMultipleExtractor.extract(persons, "firstName");11      System.out.println(firstNames);12   }13}14class Person {15   private String firstName;16   private String lastName;17   private int age;18   public Person(String firstName, String lastName, int age) {19      this.firstName = firstName;20      this.lastName = lastName;21      this.age = age;22   }23   public String getFirstName() {24      return firstName;25   }26   public String getLastName() {27      return lastName;28   }29   public int getAge() {30      return age;31   }32}

ByNameMultipleExtractor

Using AI Code Generation

1  people.extracting("name", "age").asList();2peopleNameAndAge.forEach(map -> map.forEach((k, v) -> System.out.println("key: " + k + " value: " + v)));3  people.extracting("name", "age").asList();4peopleNameAndAge.forEach(map -> map.forEach((k, v) -> System.out.println("key: " + k + " value: " + v)));5  people.extracting("name", "age").asList();6peopleNameAndAge.forEach(map -> map.forEach((k, v) -> System.out.println("key: " + k + " value: " + v)));

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