KaneAI - World’s First E2E Software Testing Agent.Signup for Private Beta Join TestMu Conference

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)));

Automation Testing Tutorials

Learn to execute automation testing from scratch with LambdaTest Learning Hub. Right from setting up the prerequisites to run your first automation test, to following best practices and diving deeper into advanced test scenarios. LambdaTest Learning Hubs compile a list of step-by-step guides to help you be proficient with different test automation frameworks i.e. Selenium, Cypress, TestNG etc.