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

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

Source:AbstractIterableAssert.java

...1468   * @return a new assertion object whose object under test is the list of values extracted1469   */1470  @CheckReturnValue1471  public <V> AbstractListAssert<?, List<? extends V>, V, ObjectAssert<V>> flatExtracting(Function<? super ELEMENT, ? extends Collection<V>> extractor) {1472    return doFlatExtracting(extractor);1473  }1474  /**1475   * Maps the Iterable's elements under test by applying the given {@link Function} and flattens the resulting collections in a1476   * list becoming the object under test.1477   * <p>1478   * Example:1479   * <pre><code class='java'> CartoonCharacter bart = new CartoonCharacter("Bart Simpson");1480   * CartoonCharacter lisa = new CartoonCharacter("Lisa Simpson");1481   * CartoonCharacter maggie = new CartoonCharacter("Maggie Simpson");1482   *1483   * CartoonCharacter homer = new CartoonCharacter("Homer Simpson");1484   * homer.getChildren().add(bart);1485   * homer.getChildren().add(lisa);1486   * homer.getChildren().add(maggie);1487   *1488   * CartoonCharacter pebbles = new CartoonCharacter("Pebbles Flintstone");1489   * CartoonCharacter fred = new CartoonCharacter("Fred Flintstone");1490   * fred.getChildren().add(pebbles);1491   *1492   * List&lt;CartoonCharacter&gt; parents = list(homer, fred);1493   *1494   * // check children property which is a List&lt;CartoonCharacter&gt;1495   * assertThat(parents).flatMap(CartoonCharacter::getChildren)1496   *                    .containsOnly(bart, lisa, maggie, pebbles);</code></pre>1497   *1498   * The mapped values order is consistent with both the order of the iterable itself as well as the mapped collections.1499   *1500   * @param <V> the type of mapped elements.1501   * @param mapper the {@link Function} transforming input object to an {@code Iterable} of desired ones1502   * @return a new assertion object whose object under test is the list of values extracted1503   * @since 3.19.01504   */1505  @CheckReturnValue1506  public <V> AbstractListAssert<?, List<? extends V>, V, ObjectAssert<V>> flatMap(Function<? super ELEMENT, ? extends Collection<V>> mapper) {1507    return doFlatExtracting(mapper);1508  }1509  /**1510   * Extracts Iterable elements values by applying a function (which might throw a checked exception) on them and1511   * concatenates/flattens the result into a single list that becomes the instance under test.1512   * <p>1513   * Example:1514   * <pre><code class='java'> CartoonCharacter bart = new CartoonCharacter("Bart Simpson");1515   * CartoonCharacter lisa = new CartoonCharacter("Lisa Simpson");1516   * CartoonCharacter maggie = new CartoonCharacter("Maggie Simpson");1517   *1518   * CartoonCharacter homer = new CartoonCharacter("Homer Simpson");1519   * homer.getChildren().add(bart);1520   * homer.getChildren().add(lisa);1521   * homer.getChildren().add(maggie);1522   *1523   * CartoonCharacter pebbles = new CartoonCharacter("Pebbles Flintstone");1524   * CartoonCharacter fred = new CartoonCharacter("Fred Flintstone");1525   * fred.getChildren().add(pebbles);1526   *1527   * List&lt;CartoonCharacter&gt; parents = list(homer, fred);1528   *1529   * // check children property where getChildren() can throw an Exception!1530   * assertThat(parents).flatExtracting(CartoonCharacter::getChildren)1531   *                    .containsOnly(bart, lisa, maggie, pebbles);</code></pre>1532   *1533   * The extracted values order is consistent with both the order of the iterable itself as well as the extracted collections.1534   *1535   * @param <V> the type of extracted values.1536   * @param <EXCEPTION> the exception type of {@link ThrowingExtractor}1537   * @param extractor the object transforming input object to an {@code Iterable} of desired ones1538   * @return a new assertion object whose object under test is the list of values extracted1539   * @since 3.7.01540   */1541  @CheckReturnValue1542  public <V, EXCEPTION extends Exception> AbstractListAssert<?, List<? extends V>, V, ObjectAssert<V>> flatExtracting(ThrowingExtractor<? super ELEMENT, ? extends Collection<V>, EXCEPTION> extractor) {1543    return doFlatExtracting(extractor);1544  }1545  /**1546   * Maps the Iterable's elements under test by applying a mapping function (which might throw a checked exception) and1547   * concatenates/flattens the result into a single list that becomes the instance under test.1548   * <p>1549   * Example:1550   * <pre><code class='java'> CartoonCharacter bart = new CartoonCharacter("Bart Simpson");1551   * CartoonCharacter lisa = new CartoonCharacter("Lisa Simpson");1552   * CartoonCharacter maggie = new CartoonCharacter("Maggie Simpson");1553   *1554   * CartoonCharacter homer = new CartoonCharacter("Homer Simpson");1555   * homer.getChildren().add(bart);1556   * homer.getChildren().add(lisa);1557   * homer.getChildren().add(maggie);1558   *1559   * CartoonCharacter pebbles = new CartoonCharacter("Pebbles Flintstone");1560   * CartoonCharacter fred = new CartoonCharacter("Fred Flintstone");1561   * fred.getChildren().add(pebbles);1562   *1563   * List&lt;CartoonCharacter&gt; parents = list(homer, fred);1564   *1565   * // check children property where getChildren() can throw an Exception!1566   * assertThat(parents).flatMap(CartoonCharacter::getChildren)1567   *                    .containsOnly(bart, lisa, maggie, pebbles);</code></pre>1568   *1569   * The mapped values order is consistent with both the order of the iterable itself as well as the mapped collections.1570   *1571   * @param <V> the type of mapped values.1572   * @param <EXCEPTION> the exception type of {@link ThrowingExtractor}1573   * @param mapper the object transforming input object to an {@code Iterable} of desired ones1574   * @return a new assertion object whose object under test is the list of values extracted1575   * @since 3.19.01576   */1577  @CheckReturnValue1578  public <V, EXCEPTION extends Exception> AbstractListAssert<?, List<? extends V>, V, ObjectAssert<V>> flatMap(ThrowingExtractor<? super ELEMENT, ? extends Collection<V>, EXCEPTION> mapper) {1579    return doFlatExtracting(mapper);1580  }1581  private <V> AbstractListAssert<?, List<? extends V>, V, ObjectAssert<V>> doFlatExtracting(Function<? super ELEMENT, ? extends Collection<V>> extractor) {1582    List<V> result = FieldsOrPropertiesExtractor.extract(actual, extractor).stream()1583                                                .flatMap(Collection::stream)1584                                                .collect(toList());1585    return newListAssertInstanceForMethodsChangingElementType(result);1586  }1587  /**1588   * Extracts multiple values from each {@code Iterable}'s element according to the given {@code Function}s and1589   * concatenates/flattens them in a list that becomes the instance under test.1590   * <p>1591   * If extracted values were not flattened, instead of a simple list like (given 2 extractors):1592   * <pre>  element1.value1, element1.value2, element2.value1, element2.value2, ...  </pre>1593   * we would get a list of list like:1594   * <pre>  list(element1.value1, element1.value2), list(element2.value1, element2.value2), ...  </pre>1595   * <p>...

doFlatExtracting

Using AI Code Generation

1import static org.assertj.core.api.Assertions.*;2import org.assertj.core.api.AbstractIterableAssert;3import org.assertj.core.api.AbstractObjectAssert;4import org.assertj.core.api.Assertions;5import org.assertj.core.api.IterableAssert;6import org.assertj.core.api.ObjectAssert;7import org.assertj.core.api.ObjectArrayAssert;8import org.assertj.core.api.ObjectEnumerableAssert;9import org.assertj.core.api.ObjectGroupAssert;10import org.assertj.core.api.ObjectListAssert;11import org.assertj.core.api.ObjectMapAssert;12import org.assertj.core.api.ObjectSetAssert;13import org.assertj.core.api.ObjectSortedSetAssert;14import org.assertj.core.api.ObjectStreamAssert;15import org.assertj.core.api.ObjectArrayAssert;16import org.assertj.core.api.ObjectEnumerableAssert;17import org.assertj.core.api.ObjectGroupAssert;18import org.assertj.core.api.ObjectListAssert;19import org.assertj.core.api.ObjectMapAssert;20import org.assertj.core.api.ObjectSetAssert;21import org.assertj.core.api.ObjectSortedSetAssert;22import org.assertj.core.api.ObjectStreamAssert;23import org.assertj.core.api.ObjectArrayAssert;24import org.assertj.core.api.ObjectEnumerableAssert;25import org.assertj.core.api.ObjectGroupAssert;26import org.assertj.core.api.ObjectListAssert;27import org.assertj.core.api.ObjectMapAssert;28import org.assertj.core.api.ObjectSetAssert;29import org.assertj.core.api.ObjectSortedSetAssert;30import org.assertj.core.api.ObjectStreamAssert;31import org.assertj.core.api.ObjectArrayAssert;32import org.assertj.core.api.ObjectEnumerableAssert;33import org.assertj.core.api.ObjectGroupAssert;34import org.assertj.core.api.ObjectListAssert;35import org.assertj.core.api.ObjectMapAssert;36import org.assertj.core.api.ObjectSetAssert;37import org.assertj.core.api.ObjectSortedSetAssert;38import org.assertj.core.api.ObjectStreamAssert;39import org.assertj.core.api.ObjectArrayAssert;40import org.assertj.core.api.ObjectEnumerableAssert;41import org.assertj.core.api.ObjectGroupAssert;42import org.assertj.core.api.ObjectListAssert;43import org.assertj.core.api.ObjectMapAssert;44import org.assertj.core.api.ObjectSetAssert;45import org.assertj.core.api.ObjectSortedSetAssert;46import org.assertj.core.api.ObjectStreamAssert;47import org.assertj.core.api.ObjectArrayAssert;48import org.assertj.core.api.ObjectEnumerableAssert;49import org.assertj.core.api.ObjectGroupAssert;50import org.assertj.core.api.ObjectListAssert;51import org.assertj.core.api.ObjectMapAssert;52import org.assertj.core.api.ObjectSetAssert;53import org.assertj.core.api.ObjectSortedSetAssert;54import org.assertj.core.api.ObjectStreamAssert;55import org.assertj.core.api.ObjectArrayAssert;56import

doFlatExtracting

Using AI Code Generation

1  * [org.assertj.core.api.AbstractIterableAssert.doFlatExtracting(java.lang.String, java.lang.String)](assertj.github.io/doc/org/asse...): # Language: markdown2  * [org.assertj.core.api.AbstractIterableAssert.doFlatExtracting(java.lang.String, java.lang.String)](assertj.github.io/doc/org/asse...): # Language: markdown3  * [org.assertj.core.api.AbstractIterableAssert.doFlatExtracting(java.lang.String, java.lang.String)](assertj.github.io/doc/org/asse...): # Language: markdown4  * [org.assertj.core.api.AbstractIterableAssert.doFlatExtracting(java.lang.String, java.lang.String)](assertj.github.io/doc/org/asse...): # Language: markdown5  * [org.assertj.core.api.AbstractIterableAssert.doFlatExtracting(java.lang.String, java.lang.String)](assertj.github.io/doc/org/asse...): # Language: markdown6  * [org.assertj.core.api.AbstractIterableAssert.doFlatExtracting(java.lang.String, java.lang.String)](assertj.github.io/doc/org/asse...): # Language: markdown

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