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

How to use extract method of org.assertj.core.api.atomic.referencearray.AtomicReferenceArrayAssert_flatExtracting_Test class

Best Assertj code snippet using org.assertj.core.api.atomic.referencearray.AtomicReferenceArrayAssert_flatExtracting_Test.extract

Source:AtomicReferenceArrayAssert_flatExtracting_Test.java

...32  private CartoonCharacter pebbles;33  private CartoonCharacter fred;34  private final Extractor<CartoonCharacter, List<CartoonCharacter>> children = new Extractor<CartoonCharacter, List<CartoonCharacter>>() {35    @Override36    public List<CartoonCharacter> extract(CartoonCharacter input) {37      return input.getChildren();38    }39  };40  @Before41  public void setUp() {42    bart = new CartoonCharacter("Bart Simpson");43    lisa = new CartoonCharacter("Lisa Simpson");44    maggie = new CartoonCharacter("Maggie Simpson");45    homer = new CartoonCharacter("Homer Simpson");46    homer.addChildren(bart, lisa, maggie);47    pebbles = new CartoonCharacter("Pebbles Flintstone");48    fred = new CartoonCharacter("Fred Flintstone");49    fred.addChildren(pebbles);50  }51  @Test52  public void should_allow_assertions_on_joined_lists_when_extracting_children() {53    AtomicReferenceArray<CartoonCharacter> cartoonCharacters = new AtomicReferenceArray<>(array(homer, fred));54    assertThat(cartoonCharacters).flatExtracting(children).containsOnly(bart, lisa, maggie, pebbles);55  }56  @Test57  public void should_allow_assertions_on_empty_result_lists() {58    AtomicReferenceArray<CartoonCharacter> childCharacters = new AtomicReferenceArray<>(array(bart, lisa, maggie));59    assertThat(childCharacters).flatExtracting(children).isEmpty();60  }61  @Test62  public void should_throw_null_pointer_exception_when_extracting_from_null() {63    thrown.expectNullPointerException();64    assertThat(new AtomicReferenceArray<>(array(homer, null))).flatExtracting(children);65  }66  @Test67  public void should_rethrow_throwing_extractor_checked_exception_as_a_runtime_exception() {68    AtomicReferenceArray<CartoonCharacter> childCharacters = new AtomicReferenceArray<>(array(bart, lisa, maggie));69    thrown.expect(RuntimeException.class, "java.lang.Exception: no children");70    assertThat(childCharacters).flatExtracting(cartoonCharacter -> {71      if (cartoonCharacter.getChildren().isEmpty()) throw new Exception("no children");72      return cartoonCharacter.getChildren();73    });74  }75  @Test76  public void should_let_throwing_extractor_runtime_exception_bubble_up() {77    AtomicReferenceArray<CartoonCharacter> childCharacters = new AtomicReferenceArray<>(array(bart, lisa, maggie));78    thrown.expect(RuntimeException.class, "no children");79    assertThat(childCharacters).flatExtracting(cartoonCharacter -> {80      if (cartoonCharacter.getChildren().isEmpty()) throw new RuntimeException("no children");81      return cartoonCharacter.getChildren();82    });83  }84  @Test85  public void should_allow_assertions_on_joined_lists_when_extracting_children_with_throwing_extractor() {86    AtomicReferenceArray<CartoonCharacter> cartoonCharacters = new AtomicReferenceArray<>(array(homer, fred));87    assertThat(cartoonCharacters).flatExtracting(cartoonCharacter -> {88      if (cartoonCharacter.getChildren().isEmpty()) throw new Exception("no children");89      return cartoonCharacter.getChildren();90    }).containsOnly(bart, lisa, maggie, pebbles);91  }92  @Test93  public void should_allow_assertions_on_joined_lists_when_extracting_children_with_anonymous_class_throwing_extractor() {94    AtomicReferenceArray<CartoonCharacter> cartoonCharacters = new AtomicReferenceArray<>(array(homer, fred));95    assertThat(cartoonCharacters).flatExtracting(new ThrowingExtractor<CartoonCharacter, List<CartoonCharacter>, Exception>() {96      @Override97      public List<CartoonCharacter> extractThrows(CartoonCharacter cartoonCharacter) throws Exception {98        if (cartoonCharacter.getChildren().isEmpty()) throw new Exception("no children");99        return cartoonCharacter.getChildren();100      }101    }).containsOnly(bart, lisa, maggie, pebbles);102  }103}...

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.