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How to use internalElement method of org.assertj.core.api.AbstractIterableAssert class

Best Assertj code snippet using org.assertj.core.api.AbstractIterableAssert.internalElement

Source:AbstractIterableAssert.java

...3268   * @see #element(int, InstanceOfAssertFactory)3269   */3270  @CheckReturnValue3271  public ELEMENT_ASSERT element(int index) {3272    return internalElement(index);3273  }3274  /**3275   * Allow to perform assertions on the elements corresponding to the given indices 3276   * (the iterable {@link Iterable} under test is changed to an iterable with the selected elements).  3277   * <p>3278   * Example:3279   * <pre><code class='java'> Iterable&lt;TolkienCharacter&gt; hobbits = newArrayList(frodo, sam, pippin);3280   *3281   * // assertion succeeds3282   * assertThat(hobbits).elements(1, 2)3283   *                    .hasSize(2)3284   *                    .containsExactly(sam, pippin);3285   *3286   * // assertion fails3287   * assertThat(hobbits).element(1, 2)3288   *                    .containsExactly(frodo, pippin);</code></pre>3289   * <p>3290   *3291   * @param indices the elements indices3292   * @return the assertion on the given elements3293   * @throws IllegalArgumentException if indices array is null or empty3294   * @throws AssertionError if one of the given indices is out of bound or if the actual is empty3295   * @since 3.203296   */3297  @CheckReturnValue3298  public SELF elements(int... indices) {3299    isNotEmpty();3300    assertIndicesIsNotNull(indices);3301    assertIndicesIsNotEmpty(indices);3302    List<ELEMENT> indexedActual = newArrayList(actual);3303    List<ELEMENT> filteredIterable = Arrays.stream(indices)3304                                           .peek(index -> checkIndexValidity(index, indexedActual))3305                                           .mapToObj(indexedActual::get)3306                                           .collect(toList());3307    // For soft assertions/assumptions, this must return a proxied iterable assert but we can't put "elements" in3308    // SoftProxies.METHODS_CHANGING_THE_OBJECT_UNDER_TEST because these methods are not proxied.3309    // We want to proxy elements(int... indices) to capture isNotEmpty and checkIndexValidity assertion errors.3310    // The solution is to introduce newAbstractIterableAssertForProxy which is going to be proxied as newAbstractIterableAssert3311    // was added to SoftProxies.METHODS_CHANGING_THE_OBJECT_UNDER_TEST list and SoftProxies.methodsChangingTheObjectUnderTestNamed3312    // will select newAbstractIterableAssertForProxy to be proxied.3313    return newAbstractIterableAssertForProxy(filteredIterable);3314  }3315  // This method is protected in order to be proxied for SoftAssertions / Assumptions.3316  protected SELF newAbstractIterableAssertForProxy(List<ELEMENT> filteredIterable) {3317    return newAbstractIterableAssert(filteredIterable).withAssertionState(myself);3318  }3319  private static void assertIndicesIsNotNull(int[] indices) {3320    if (indices == null) throw new IllegalArgumentException("indices must not be null");3321  }3322  private static void assertIndicesIsNotEmpty(int[] indices) {3323    if (indices.length == 0) throw new IllegalArgumentException("indices must not be empty");3324  }3325  private void checkIndexValidity(int index, List<ELEMENT> indexedActual) {3326    assertThat(indexedActual).describedAs("check actual size is enough to get element[" + index + "]")3327                             .hasSizeGreaterThan(index);3328  }3329  /**3330   * Navigate and allow to perform assertions on the chosen element of the {@link Iterable} under test.3331   * <p>3332   * The {@code assertFactory} parameter allows to specify an {@link InstanceOfAssertFactory}, which is used to get the3333   * assertions narrowed to the factory type.3334   * <p>3335   * Example: use of {@code String} assertions after {@code element(index, as(InstanceOfAssertFactories.STRING)}3336   * <pre><code class='java'> Iterable&lt;String&gt; hobbits = newArrayList("Frodo", "Sam", "Pippin");3337   *3338   * // assertion succeeds3339   * assertThat(hobbits).element(1, as(InstanceOfAssertFactories.STRING))3340   *                    .startsWith("Sa")3341   *                    .endsWith("am");3342   * // assertion fails3343   * assertThat(hobbits).element(1, as(InstanceOfAssertFactories.STRING))3344   *                    .startsWith("Fro");3345   * // assertion fails because of wrong factory type3346   * assertThat(hobbits).element(1, as(InstanceOfAssertFactories.INTEGER))3347   *                    .isZero();</code></pre>3348   *3349   * @param <ASSERT>      the type of the resulting {@code Assert}3350   * @param index         the element's index3351   * @param assertFactory the factory which verifies the type and creates the new {@code Assert}3352   * @return a new narrowed {@link Assert} instance for assertions chaining on the element at the given index3353   * @throws AssertionError if the given index is out of bound.3354   * @throws NullPointerException if the given factory is {@code null}3355   * @since 3.14.03356   */3357  @CheckReturnValue3358  public <ASSERT extends AbstractAssert<?, ?>> ASSERT element(int index, InstanceOfAssertFactory<?, ASSERT> assertFactory) {3359    return internalElement(index).asInstanceOf(assertFactory);3360  }3361  private ELEMENT_ASSERT internalElement(int index) {3362    isNotEmpty();3363    assertThat(index).describedAs(navigationDescription("check index validity"))3364                     .isBetween(0, IterableUtil.sizeOf(actual) - 1);3365    ELEMENT elementAtIndex;3366    if (actual instanceof List) {3367      @SuppressWarnings("unchecked")3368      List<? extends ELEMENT> list = (List<? extends ELEMENT>) actual;3369      elementAtIndex = list.get(index);3370    } else {3371      Iterator<? extends ELEMENT> actualIterator = actual.iterator();3372      for (int i = 0; i < index; i++) {3373        actualIterator.next();3374      }3375      elementAtIndex = actualIterator.next();...

internalElement

Using AI Code Generation

1import org.assertj.core.api.AbstractIterableAssert;2import java.util.List;3import static org.assertj.core.api.Assertions.assertThat;4public class AssertJTest {5    public static void main(String[] args) {6        List<String> list = List.of("A", "B", "C");7        assertThat(list)8                .extracting(String::toString)9                .asList()10                .contains("A");11    }12}

internalElement

Using AI Code Generation

1assertThat(people).filteredOn("age", in(20, 30)).extracting("name").containsOnly("John", "Jane");2assertThat(people).filteredOn("age", in(20, 30)).extracting("name").containsOnly("John", "Jane");3assertThat(people).filteredOn("age", in(20, 30)).extracting("name").containsOnly("John", "Jane");4assertThat(people).filteredOn("age", in(20, 30)).extracting("name").containsOnly("John", "Jane");5assertThat(people).filteredOn("age", in(20, 30)).extracting("name").containsOnly("John", "Jane");6assertThat(people).filteredOn("age", in(20, 30)).extracting("name").containsOnly("John", "Jane");7assertThat(people).filteredOn("age", in(20, 30)).extracting("name").containsOnly("John", "Jane");8assertThat(people).filteredOn("age", in(20, 30)).extracting("name").containsOnly("John", "Jane");9assertThat(people).filteredOn("age", in(20, 30)).extracting("name").containsOnly("John", "Jane");10assertThat(people).filteredOn("age", in(20, 30)).extracting("name").containsOnly("John", "Jane");11assertThat(people).filteredOn("age", in(20, 30)).extracting("name").containsOnly("John

internalElement

Using AI Code Generation

1import org.junit.jupiter.api.Test;2import java.util.Arrays;3import java.util.List;4import static org.assertj.core.api.Assertions.assertThat;5public class AssertJInternalElementTest {6    public void givenCollection_whenContainsElement_thenCorrect() {7        List<String> list = Arrays.asList("one", "two", "three", "four");8        assertThat(list)9                .as("List should contain 'three'")10                .internalElement()11                .satisfies(s -> assertThat(s).isEqualTo("three"));12    }13}14The following code shows how to use the internalElements() method of org.assertj.core.api.AbstractIterableAssert class to check if the collection contains a given set of elements:15import org.junit.jupiter.api.Test;16import java.util.Arrays;17import java.util.List;18import static org.assertj.core.api.Assertions.assertThat;19public class AssertJInternalElementsTest {20    public void givenCollection_whenContainsElements_thenCorrect() {21        List<String> list = Arrays.asList("one", "two", "three", "four");22        assertThat(list)23                .as("List should contain 'three' and 'four'")24                .internalElements()25                .satisfies(s -> assertThat(s).isEqualTo("three"))26                .satisfies(s -> assertThat(s).isEqualTo("four"));27    }28}

internalElement

Using AI Code Generation

1@DisplayName("Test internalElement() method of AbstractIterableAssert class")2class AbstractIterableAssertTest {3    private List<String> list;4    void setUp() {5        list = new ArrayList<>();6        list.add("John");7        list.add("Jane");8        list.add("Amanda");9    }10    void testInternalElement() {11        AbstractIterableAssert<?, List<String>, String, ObjectAssert<String>> assertion = assertThat(list);12        ObjectAssert<String> elementAssert = assertion.internalElement(1);13        assertThat(elementAssert).isNotNull();14        assertThat(elementAssert).isInstanceOf(ObjectAssert.class);15        assertThat(elementAssert.actual).isEqualTo("Jane");16    }17}

internalElement

Using AI Code Generation

1import org.assertj.core.api.AbstractIterableAssert;2import org.assertj.core.api.Assertions;3import org.junit.jupiter.api.Test;4import java.util.ArrayList;5import java.util.List;6public class AssertJIterableAssertTest {7    public void iterableAssertTest() {8        List<String> list = new ArrayList<>();9        list.add("element1");10        list.add("element2");11        list.add("element3");12        list.add("element4");13        list.add("element5");14        AbstractIterableAssert<?, List<String>, String, ObjectAssert<String>> iterableAssert = Assertions.assertThat(list);15        iterableAssert.contains("element1")16                .contains("element2")17                .contains("element3")18                .contains("element4")19                .contains("element5");20        iterableAssert.extracting(String::toUpperCase)21                .contains("ELEMENT1")22                .contains("ELEMENT2")23                .contains("ELEMENT3")24                .contains("ELEMENT4")25                .contains("ELEMENT5");26        iterableAssert.extracting(String::toUpperCase)27                .contains("ELEMENT1", "ELEMENT2", "ELEMENT3", "ELEMENT4", "ELEMENT5");28        iterableAssert.extracting(String::toUpperCase)29                .containsExactly("ELEMENT1", "ELEMENT2", "ELEMENT3", "ELEMENT4", "ELEMENT5");30        iterableAssert.extracting(String::toUpperCase)31                .containsExactlyInAnyOrder("ELEMENT5", "ELEMENT4", "ELEMENT3", "ELEMENT2", "ELEMENT1");32        iterableAssert.extracting(String::toUpperCase)33                .doesNotContain("ELEMENT6")34                .doesNotContain("ELEMENT7")35                .doesNotContain("ELEMENT8")36                .doesNotContain("ELEMENT9")37                .doesNotContain("ELEMENT10");38        iterableAssert.extracting(String::toUpperCase)39                .containsExactlyInAnyOrder("ELEMENT5", "ELEMENT4", "ELEMENT3", "ELEMENT2", "ELEMENT1")40                .doesNotContain("ELEMENT6", "ELEMENT7", "ELEMENT8", "ELEMENT9", "ELEMENT10");41        iterableAssert.extracting(String::toUpperCase)42                .containsExactlyInAnyOrder("ELEMENT5", "ELEMENT4", "ELEMENT3", "ELEMENT2", "ELEMENT1")43                .doesNotContain("ELEMENT6", "ELEMENT7", "ELEMENT8", "ELEMENT9",

internalElement

Using AI Code Generation

1assertThat(Arrays.asList("a", "b", "c")).element(0).isEqualTo("a");2assertThat(Arrays.asList("a", "b", "c")).element(1).isEqualTo("b");3assertThat(Arrays.asList("a", "b", "c")).element(2).isEqualTo("c");4assertThat(Arrays.asList("a", "b", "c")).element(0).isEqualTo("a");5assertThat(Arrays.asList("a", "b", "c")).element(1).isEqualTo("b");6assertThat(Arrays.asList("a", "b", "c")).element(2).isEqualTo("c");7assertThat(new HashMap<String, String>() {{8    put("a", "a");9    put("b", "b");10    put("c", "c");11}}).element("a").isEqualTo("a");12assertThat(new HashMap<String, String>() {{13    put("a", "a");14    put("b", "b");15    put("c", "c");16}}).element("b").isEqualTo("b");17assertThat(new HashMap<String, String>() {{18    put("a", "a");19    put("b", "b");20    put("c", "c");21}}).element("c").isEqualTo("c");22assertThat(new String[]{"a", "b", "c"}).element(0).isEqualTo("a");23assertThat(new String[]{"a", "b", "c"}).element(1).isEqualTo("b");24assertThat(new String[]{"a", "b", "c"}).element(2).isEqualTo("c");25assertThat("abc").element(0).isEqualTo('a');26assertThat("abc").element(1).isEqualTo('b');27assertThat("abc").element(2).isEqualTo('c');28assertThat("abc").element(0).isEqualTo('a');29assertThat("

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