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

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

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...1611 */​1612 @CheckReturnValue1613 @SafeVarargs1614 public final AbstractListAssert<?, List<? extends Object>, Object, ObjectAssert<Object>> flatExtracting(Function<? super ELEMENT, ?>... extractors) {1615 return flatExtractingForProxy(extractors);1616 }1617 /​**1618 * Maps multiple values from each {@code Iterable}'s element according to the given {@code Function}s1619 * and concatenates/​flattens them in a list that becomes the instance under test.1620 * <p>1621 * If mapped values were not flattened, instead of a simple list like (given 2 extractors):1622 * <pre> element1.value1, element1.value2, element2.value1, element2.value2, ... </​pre>1623 * we would get a list of list like:1624 * <pre> list(element1.value1, element1.value2), list(element2.value1, element2.value2), ... </​pre>1625 * <p>1626 * Example:1627 * <pre><code class='java'> /​/​ fellowshipOfTheRing is a List&lt;TolkienCharacter&gt;1628 *1629 * /​/​ values are extracted in order and flattened: age1, name1, age2, name2, age3 ...1630 * assertThat(fellowshipOfTheRing).flatMap(TolkienCharacter::getAge,1631 * TolkienCharacter::getName)1632 * .contains(33 ,"Frodo",1633 * 1000, "Legolas",1634 * 87, "Aragorn");</​code></​pre>1635 *1636 * The resulting mapped values list is ordered by {@code Iterable}'s element first and then mapped values, this is why is1637 * in the example age values come before names.1638 *1639 * @param mappers all the mappers to apply on each actual {@code Iterable}'s elements1640 * @return a new assertion object whose object under test is a flattened list of all mapped values.1641 * @since 3.19.01642 */​1643 @CheckReturnValue1644 @SafeVarargs1645 public final AbstractListAssert<?, List<? extends Object>, Object, ObjectAssert<Object>> flatMap(Function<? super ELEMENT, ?>... mappers) {1646 return flatExtractingForProxy(mappers);1647 }1648 /​/​ This method is protected in order to be proxied for SoftAssertions /​ Assumptions.1649 /​/​ The public method for it (the one not ending with "ForProxy") is marked as final and annotated with @SafeVarargs1650 /​/​ in order to avoid compiler warning in user code1651 protected AbstractListAssert<?, List<? extends Object>, Object, ObjectAssert<Object>> flatExtractingForProxy(Function<? super ELEMENT, ?>[] extractors) {1652 if (actual == null) throwAssertionError(shouldNotBeNull());1653 Stream<? extends ELEMENT> actualStream = stream(actual.spliterator(), false);1654 List<Object> result = actualStream.flatMap(element -> Stream.of(extractors).map(extractor -> extractor.apply(element)))1655 .collect(toList());1656 return newListAssertInstanceForMethodsChangingElementType(result);1657 }1658 /​**1659 * Extracts multiple values from each {@code Iterable}'s element according to the given {@link ThrowingExtractor}s1660 * and concatenates/​flattens them in a list that becomes the object under test.1661 * <p>1662 * If extracted values were not flattened, instead of a simple list like (given 2 extractors):1663 * <pre> element1.value1, element1.value2, element2.value1, element2.value2, ... </​pre>1664 * we would get a list of list like:1665 * <pre> list(element1.value1, element1.value2), list(element2.value1, element2.value2), ... </​pre>1666 * <p>1667 * Example:1668 * <pre><code class='java'> /​/​ fellowshipOfTheRing is a List&lt;TolkienCharacter&gt;1669 *1670 * /​/​ values are extracted in order and flattened: age1, name1, age2, name2, age3 ...1671 * assertThat(fellowshipOfTheRing).flatExtracting(input -&gt; {1672 * if (input.getAge() &lt; 20) {1673 * throw new Exception("age &lt; 20");1674 * }1675 * return input.getName();1676 * }, input2 -&gt; {1677 * if (input2.getAge() &lt; 20) {1678 * throw new Exception("age &lt; 20");1679 * }1680 * return input2.getAge();1681 * }).contains(33 ,"Frodo",1682 * 1000, "Legolas",1683 * 87, "Aragorn");</​code></​pre>1684 *1685 * The resulting extracted values list is ordered by {@code Iterable}'s element first and then extracted values,1686 * this is why is in the example age values come before names.1687 *1688 * @param <EXCEPTION> the exception type of {@link ThrowingExtractor}1689 * @param extractors all the extractors to apply on each actual {@code Iterable}'s elements1690 * @return a new assertion object whose object under test is a flattened list of all extracted values.1691 * @since 3.7.01692 */​1693 @CheckReturnValue1694 @SafeVarargs1695 public final <EXCEPTION extends Exception> AbstractListAssert<?, List<? extends Object>, Object, ObjectAssert<Object>> flatExtracting(ThrowingExtractor<? super ELEMENT, ?, EXCEPTION>... extractors) {1696 return flatExtractingForProxy(extractors);1697 }1698 /​**1699 * Maps multiple values from each {@code Iterable}'s element according to the given {@link ThrowingExtractor}s and1700 * concatenates/​flattens them in a list that becomes the object under test.1701 * <p>1702 * If mapped values were not flattened, instead of a simple list like (given 2 mappers):1703 * <pre> element1.value1, element1.value2, element2.value1, element2.value2, ... </​pre>1704 * we would get a list of list like:1705 * <pre> list(element1.value1, element1.value2), list(element2.value1, element2.value2), ... </​pre>1706 * <p>1707 * Example:1708 * <pre><code class='java'> /​/​ fellowshipOfTheRing is a List&lt;TolkienCharacter&gt;1709 *1710 * /​/​ values are extracted in order and flattened: age1, name1, age2, name2, age3 ...1711 * assertThat(fellowshipOfTheRing).flatMap(input -&gt; {1712 * if (input.getAge() &lt; 20) {1713 * throw new Exception("age &lt; 20");1714 * }1715 * return input.getName();1716 * }, input2 -&gt; {1717 * if (input2.getAge() &lt; 20) {1718 * throw new Exception("age &lt; 20");1719 * }1720 * return input2.getAge();1721 * }).contains(33 ,"Frodo",1722 * 1000, "Legolas",1723 * 87, "Aragorn");</​code></​pre>1724 *1725 * The resulting mapped values list is ordered by {@code Iterable}'s element first and then mapped values, this is why is in1726 * the example age values come before names.1727 *1728 * @param <EXCEPTION> the exception type of {@link ThrowingExtractor}1729 * @param mappers all the mappers to apply on each actual {@code Iterable}'s elements1730 * @return a new assertion object whose object under test is a flattened list of all extracted values.1731 * @since 3.19.01732 */​1733 @CheckReturnValue1734 @SafeVarargs1735 public final <EXCEPTION extends Exception> AbstractListAssert<?, List<? extends Object>, Object, ObjectAssert<Object>> flatMap(ThrowingExtractor<? super ELEMENT, ?, EXCEPTION>... mappers) {1736 return flatExtractingForProxy(mappers);1737 }1738 /​**1739 * Extract Iterable's elements values corresponding to the given property/​field name and concatenates them into a list becoming1740 * the new instance under test.1741 * <p>1742 * This allows testing the elements extracted values that are iterables or arrays.1743 * <p>1744 * For example:1745 * <pre><code class='java'> CartoonCharacter bart = new CartoonCharacter("Bart Simpson");1746 * CartoonCharacter lisa = new CartoonCharacter("Lisa Simpson");1747 * CartoonCharacter maggie = new CartoonCharacter("Maggie Simpson");1748 * CartoonCharacter homer = new CartoonCharacter("Homer Simpson");1749 * homer.getChildren().add(bart);1750 * homer.getChildren().add(lisa);...

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flatExtractingForProxy

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1import org.assertj.core.api.SoftAssertions;2import org.junit.jupiter.api.Test;3import java.util.List;4import static org.assertj.core.api.Assertions.assertThat;5public class FlatExtractingForProxyTest {6 public void testFlatExtractingForProxy() {7 List<SoftAssertions> softAssertions = List.of(8 new SoftAssertions(),9 new SoftAssertions()10 );11 assertThat(softAssertions).flatExtractingForProxy(SoftAssertions::errorsCollected).isEmpty();12 }13}

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flatExtractingForProxy

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1[INFO] --- maven-resources-plugin:2.6:testResources (default-testResources) @ assertj-core ---2[INFO] --- maven-compiler-plugin:3.1:testCompile (default-testCompile) @ assertj-core ---3[INFO] --- maven-surefire-plugin:2.12.4:test (default-test) @ assertj-core ---4[INFO] --- maven-jar-plugin:2.4:jar (default-jar) @ assertj-core ---5[INFO] --- maven-source-plugin:2.2.1:jar-no-fork (attach-sources) @ assertj-core ---6[INFO] --- maven-javadoc-plugin:2.9.1:jar (attach-javadocs) @ assertj-core ---7[INFO] --- maven-install-plugin:2.4:install (default-install) @ assertj-core ---

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flatExtractingForProxy

Using AI Code Generation

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1assertThat(employees).flatExtractingForProxy(employee -> employee.getTasks().stream().map(Task::getName).collect(Collectors.toList()))2 .containsExactly("task1", "task2", "task3", "task4", "task5");3assertThat(employees).flatExtractingForProxy(employee -> employee.getTasks().stream().map(Task::getName).collect(Collectors.toList()))4 .containsExactlyInAnyOrder("task1", "task2", "task3", "task4", "task5");5assertThat(employees).flatExtractingForProxy(employee -> employee.getTasks().stream().map(Task::getName).collect(Collectors.toList()))6 .containsExactlyInAnyOrder("task1", "task2", "task3", "task4", "task5");7assertThat(employees).flatExtractingForProxy(employee -> employee.getTasks().stream().map(Task::getName).collect(Collectors.toList()))8 .containsExactlyInAnyOrder("task1", "task2", "task3", "task4", "task5");9assertThat(employees).flatExtractingForProxy(employee -> employee.getTasks().stream().map(Task::getName).collect(Collectors.toList()))10 .containsExactlyInAnyOrder("task1", "task2", "task3", "task4", "task5");11assertThat(employees).flatExtractingForProxy(employee -> employee.getTasks().stream().map(Task::getName).collect(Collectors.toList()))12 .containsExactlyInAnyOrder("task1", "task2", "task3", "task4", "task5");13assertThat(employees).flatExtractingForProxy(employee -> employee.getTasks().stream().map(Task::getName).collect(Collectors.toList()))14 .containsExactlyInAnyOrder("task1", "task2", "task3", "task4", "task5");15assertThat(employees).flatExtractingForProxy(employee -> employee.getTasks().stream().map(Task::getName).collect(Collectors.toList()))16 .containsExactlyInAnyOrder("task1", "task2", "task3", "task4", "task5");17assertThat(employees).flatExtractingForProxy(employee -> employee.getTasks().stream().map(Task::getName).collect(Collectors.toList()))18 .containsExactlyInAnyOrder("task1", "task2", "task3", "task4", "task5");

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flatExtractingForProxy

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1assertThat(fruits).flatExtractingForProxy("name", String.class).contains("Apple");2assertThat(fruits).flatExtractingForProxy("name", String.class).doesNotContain("Apple");3assertThat(fruits).flatExtractingForProxy("name", String.class).contains("Apple", "Banana");4assertThat(fruits).flatExtractingForProxy("name", String.class).doesNotContain("Apple", "Banana");5assertThat(fruits).flatExtractingForProxy("name", String.class).containsExactly("Apple", "Banana");6assertThat(fruits).flatExtractingForProxy("name", String.class).doesNotContainExactly("Apple", "Banana");7assertThat(fruits).flatExtractingForProxy("name", String.class).containsOnly("Apple", "Banana");8assertThat(fruits).flatExtractingForProxy("name", String.class).doesNotContainOnly("Apple", "Banana");9assertThat(fruits).flatExtractingForProxy("name", String.class).containsExactlyInAnyOrder("Apple", "Banana");10assertThat(fruits).flatExtractingForProxy("name", String.class).doesNotContainExactlyInAnyOrder("Apple", "Banana");11assertThat(fruits).flatExtractingForProxy("name", String.class).containsExactlyInAnyOrderElementsOf(Arrays.asList("Apple", "Banana"));12assertThat(fruits).flatExtractingForProxy("name", String.class).doesNotContainExactlyInAnyOrderElementsOf(Arrays.asList("Apple", "Banana"));13assertThat(fruits).flatExtractingForProxy("name", String.class).containsAll("Apple", "Banana");14assertThat(fruits).flatExtractingForProxy("name", String.class).doesNotContainAll("Apple", "Banana");15assertThat(fruits).flatExtractingForProxy("name", String.class).containsAnyOf("Apple", "Banana");16assertThat(fruits).flatExtractingForProxy("name", String.class).doesNotContainAnyOf("Apple", "Banana");17assertThat(fruits).flatExtractingForProxy("name", String.class).containsSequence("Apple", "Banana");18assertThat(fruits).flatExtractingForProxy("name", String.class).doesNotContainSequence("Apple", "Banana");19assertThat(fruits).flatExtractingForProxy("name", String.class).containsSubsequence("

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flatExtractingForProxy

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1public static <ELEMENT> IterableAssert<ELEMENT> flatExtractingForProxy ( final Iterable<? extends ELEMENT> actual, final Function<? super ELEMENT, ?>[] extractors) {2 return new IterableAssert<>(actual).flatExtracting(extractors);3 }4 public void testFlatExtracting() {5 List<Person> persons = Arrays.asList(6 new Person("John", 30, new Address("Paris")),7 new Person("Jane", 32, new Address("Paris")),8 new Person("Jack", 2, new Address("London")));9 IterableAssert<String> assertions = flatExtractingForProxy(persons, p -> p.name, p -> p.address.city);10 assertions.containsOnly("John", "Paris", "Jane", "Paris", "Jack", "London");11 }12 public void testFlatExtracting2() {13 List<Person> persons = Arrays.asList(14 new Person("John", 30, new Address("Paris")),15 new Person("Jane", 32, new Address("Paris")),16 new Person("Jack", 2, new Address("London")));17 IterableAssert<String> assertions = flatExtractingForProxy(persons, p -> p.name, p -> p.address.city);18 assertions.containsOnly("John", "Paris", "Jane", "Paris", "Jack", "London");19 }20 public void testFlatExtracting3() {21 List<Person> persons = Arrays.asList(22 new Person("John", 30, new Address("Paris")),23 new Person("Jane", 32, new Address("Paris")),24 new Person("Jack", 2, new Address("London")));25 IterableAssert<String> assertions = flatExtractingForProxy(persons, p -> p.name, p -> p.address.city);26 assertions.containsOnly("John", "Paris", "Jane", "Paris", "Jack

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1@DisplayName("Test flatExtractingForProxy method of org.assertj.core.api.AbstractIterableAssert class")2class AbstractIterableAssertTest {3 static final String[] ARRAY_OF_STRINGS = {"one", "two", "three"};4 static final List<String> LIST_OF_STRINGS = new ArrayList<>(Arrays.asList(ARRAY_OF_STRINGS));5 @DisplayName("Test flatExtractingForProxy method of org.assertj.core.api.AbstractIterableAssert class")6 void testFlatExtractingForProxy() {7 assertThat(LIST_OF_STRINGS).flatExtractingForProxy(s -> Arrays.asList(s, s + s));8 }9}10 at org.junit.jupiter.engine.descriptor.ClassBasedTestDescriptor.invokeTestInstanceFactory(ClassBasedTestDescriptor.java:285)11 at org.junit.jupiter.engine.descriptor.ClassBasedTestDescriptor.instantiateTestClass(ClassBasedTestDescriptor.java:270)12 at org.junit.jupiter.engine.descriptor.ClassTestDescriptor.instantiateTestClass(ClassTestDescriptor.java:79)13 at org.junit.jupiter.engine.descriptor.ClassBasedTestDescriptor.instantiateAndPostProcessTestInstance(ClassBasedTestDescriptor.java:258)14 at org.junit.jupiter.engine.descriptor.ClassBasedTestDescriptor.lambda$testInstancesProvider$2(ClassBasedTestDescriptor.java:252)15 at java.base/​java.util.Optional.orElseGet(Optional.java:369)16 at org.junit.jupiter.engine.descriptor.ClassBasedTestDescriptor.lambda$testInstancesProvider$3(ClassBasedTestDescriptor.java:251)17 at org.junit.jupiter.engine.execution.TestInstancesProvider.getTestInstances(TestInstancesProvider.java:31)18 at org.junit.jupiter.engine.descriptor.TestMethodTestDescriptor.lambda$prepare$0(TestMethodTestDescriptor.java:101)19 at org.junit.platform.engine.support.hierarchical.ThrowableCollector.execute(ThrowableCollector.java:73)20 at org.junit.jupiter.engine.descriptor.TestMethodTestDescriptor.prepare(TestMethodTestDescriptor.java:100)21 at org.junit.jupiter.engine.descriptor.TestMethodTestDescriptor.prepare(TestMethodTestDescriptor.java:65)22 at org.junit.platform.engine.support.hierarchical.NodeTestTask.lambda$prepare$1(NodeTestTask.java:111)23 at org.junit.platform.engine.support.hierarchical.ThrowableCollector.execute(ThrowableCollector.java:73)24 at org.junit.platform.engine.support.hierarchical.NodeTestTask.prepare(NodeTestTask.java:111)25 at org.junit.platform.engine.support.hierarchical.NodeTestTask.execute(NodeTestTask.java:79)26 at java.base/​java.util.ArrayList.forEach(ArrayList.java:1541)

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