How to use newListAssertInstance method of org.assertj.core.api.AbstractAssert class

Best Assertj code snippet using org.assertj.core.api.AbstractAssert.newListAssertInstance

Source:AbstractAssert.java Github

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...393 @Override394 @CheckReturnValue395 public AbstractListAssert<?, List<? extends Object>, Object, ObjectAssert<Object>> asList() {396 objects.assertIsInstanceOf(info, actual, List.class);397 return newListAssertInstance((List<Object>) actual);398 }399 /** {@inheritDoc} */400 @Override401 @CheckReturnValue402 public AbstractCharSequenceAssert<?, String> asString() {403 objects.assertIsInstanceOf(info, actual, String.class);404 return Assertions.assertThat((String) actual);405 }406 /**407 * The description of this assertion set with {@link #describedAs(String, Object...)} or408 * {@link #describedAs(Description)}.409 *410 * @return the description String representation of this assertion.411 */412 public String descriptionText() {413 return info.descriptionText();414 }415 /**416 * Overrides AssertJ default error message by the given one.417 * <p>418 * The new error message is built using {@link String#format(String, Object...)} if you provide args parameter (if you419 * don't, the error message is taken as it is).420 * <p>421 * Example :422 * <pre><code class='java'>assertThat(player.isRookie()).overridingErrorMessage(&quot;Expecting Player &lt;%s&gt; to be a rookie but was not.&quot;, player)423 * .isTrue();</code></pre>424 *425 * @param newErrorMessage the error message that will replace the default one provided by Assertj.426 * @param args the args used to fill error message as in {@link String#format(String, Object...)}.427 * @return this assertion object.428 */429 @CheckReturnValue430 public SELF overridingErrorMessage(String newErrorMessage, Object... args) {431 info.overridingErrorMessage(formatIfArgs(newErrorMessage, args));432 return myself;433 }434 /**435 * Alternative method for {@link AbstractAssert#overridingErrorMessage}436 *437 * @param newErrorMessage the error message that will replace the default one provided by Assertj.438 * @param args the args used to fill error message as in {@link String#format(String, Object...)}.439 * @return this assertion object.440 */441 @CheckReturnValue442 public SELF withFailMessage(String newErrorMessage, Object... args) {443 overridingErrorMessage(newErrorMessage, args);444 return myself;445 }446 /** {@inheritDoc} */447 @Override448 @CheckReturnValue449 public SELF usingComparator(Comparator<? super ACTUAL> customComparator) {450 // using a specific strategy to compare actual with other objects.451 this.objects = new Objects(new ComparatorBasedComparisonStrategy(customComparator));452 return myself;453 }454 /** {@inheritDoc} */455 @Override456 @CheckReturnValue457 public SELF usingDefaultComparator() {458 // fall back to default strategy to compare actual with other objects.459 this.objects = Objects.instance();460 return myself;461 }462 /** {@inheritDoc} */463 @Override464 @CheckReturnValue465 public SELF withThreadDumpOnError() {466 Failures.instance().enablePrintThreadDump();467 return myself;468 }469 /** {@inheritDoc} */470 @Override471 @CheckReturnValue472 public SELF withRepresentation(Representation representation) {473 info.useRepresentation(representation);474 return myself;475 }476 /**477 * {@inheritDoc}478 *479 * @deprecated use {@link #isEqualTo} instead480 *481 * @throws UnsupportedOperationException if this method is called.482 */483 @Override484 @Deprecated485 public boolean equals(Object obj) {486 if (throwUnsupportedExceptionOnEquals) {487 throw new UnsupportedOperationException("'equals' is not supported...maybe you intended to call 'isEqualTo'");488 }489 return super.equals(obj);490 }491 /**492 * Always returns 1.493 *494 * @return 1.495 */496 @Override497 public int hashCode() {498 return 1;499 }500 /**501 * Verifies that the actual object matches the given predicate.502 * <p>503 * Example :504 *505 * <pre><code class='java'> assertThat(player).matches(p -&gt; p.isRookie());</code></pre>506 *507 * @param predicate the {@link Predicate} to match508 * @return {@code this} assertion object.509 * @throws AssertionError if the actual does not match the given {@link Predicate}.510 * @throws NullPointerException if given {@link Predicate} is null.511 */512 public SELF matches(Predicate<? super ACTUAL> predicate) {513 // use default PredicateDescription514 return matches(predicate, PredicateDescription.GIVEN);515 }516 /**517 * Verifies that the actual object matches the given predicate, the predicate description is used to get an518 * informative error message.519 * <p>520 * Example :521 *522 * <pre><code class='java'> assertThat(player).matches(p -&gt; p.isRookie(), "is rookie");</code></pre>523 *524 * The error message contains the predicate description, if the previous assertion fails, it will be:525 *526 * <pre><code class='java'> Expecting:527 * &lt;player&gt;528 * to match 'is rookie' predicate.</code></pre>529 *530 * @param predicate the {@link Predicate} to match531 * @param predicateDescription a description of the {@link Predicate} used in the error message532 * @return {@code this} assertion object.533 * @throws AssertionError if the actual does not match the given {@link Predicate}.534 * @throws NullPointerException if given {@link Predicate} is null.535 * @throws NullPointerException if given predicateDescription is null.536 */537 public SELF matches(Predicate<? super ACTUAL> predicate, String predicateDescription) {538 return matches(predicate, new PredicateDescription(predicateDescription));539 }540 /**541 * Verifies that the actual object satisfied the given requirements expressed as a {@link Consumer}.542 * <p>543 * This is useful to perform a group of assertions on a single object.544 * <p>545 * Grouping assertions example :546 * <pre><code class='java'> // second constructor parameter is the light saber color547 * Jedi yoda = new Jedi("Yoda", "Green");548 * Jedi luke = new Jedi("Luke Skywalker", "Green");549 *550 * Consumer&lt;Jedi&gt; jediRequirements = jedi -&gt; {551 * assertThat(jedi.getLightSaberColor()).isEqualTo("Green");552 * assertThat(jedi.getName()).doesNotContain("Dark");553 * };554 *555 * // assertions succeed:556 * assertThat(yoda).satisfies(jediRequirements);557 * assertThat(luke).satisfies(jediRequirements);558 *559 * // assertions fails:560 * Jedi vader = new Jedi("Vader", "Red");561 * assertThat(vader).satisfies(jediRequirements);</code></pre>562 * <p>563 * In the following example, {@code satisfies} prevents the need of define a local variable in order to run multiple assertions:564 * <pre><code class='java'> // no need to define team.getPlayers().get(0).getStats() as a local variable565 * assertThat(team.getPlayers().get(0).getStats()).satisfies(stats -&gt; {566 * assertThat(stats.pointPerGame).isGreaterThan(25.7);567 * assertThat(stats.assistsPerGame).isGreaterThan(7.2);568 * assertThat(stats.reboundsPerGame).isBetween(9, 12);569 * };</code></pre>570 *571 * @param requirements to assert on the actual object - must not be null.572 * @return this assertion object.573 * 574 * @throws NullPointerException if given Consumer is null 575 */576 public SELF satisfies(Consumer<ACTUAL> requirements) {577 requireNonNull(requirements, "The Consumer<T> expressing the assertions requirements must not be null");578 requirements.accept(actual);579 return myself;580 }581 private SELF matches(Predicate<? super ACTUAL> predicate, PredicateDescription predicateDescription) {582 requireNonNull(predicate, "The predicate must not be null");583 if (predicate.test(actual)) return myself;584 throw Failures.instance().failure(info, shouldMatch(actual, predicate, predicateDescription));585 }586 public static void setCustomRepresentation(Representation customRepresentation) {587 AbstractAssert.customRepresentation = customRepresentation;588 }589 /** {@inheritDoc} */590 @Override591 public SELF hasSameHashCodeAs(Object other) {592 objects.assertHasSameHashCodeAs(info, actual, other);593 return myself;594 }595 /**596 * Create a {@link AbstractListAssert}.597 * <p>598 * Implementations need to redefine either to be proxy friendly (i.e. no final assertion methods like {@link ProxyableListAssert}) 599 * or generic vararg friendly (to use {@link SafeVarargs} annotation which requires final method)like {@link ListAssert}.600 * <p>601 * The default implementation will assume that this concrete implementation is NOT a soft assertion.602 *603 * @param <E> the type of elements.604 * @param newActual new value605 * @return a new {@link AbstractListAssert}.606 */607 protected <E> AbstractListAssert<?, List<? extends E>, E, ObjectAssert<E>> newListAssertInstance(List<? extends E> newActual) {608 return new ListAssert<>(newActual);609 }610}...

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Source:CustomAssertJ.java Github

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...122// public AbstractListAssert<?, List<?>, Object, ObjectAssert<Object>> extracting(String... propertiesOrFields) {123// Tuple values = (Tuple) Extractors.byName(propertiesOrFields).apply(this.actual);124// String extractedPropertiesOrFieldsDescription = Extractors.extractedDescriptionOf(propertiesOrFields);125// String description = Description.mostRelevantDescription(this.info.description(), extractedPropertiesOrFieldsDescription);126// return this.newListAssertInstance(values.toList()).as(description, new Object[0]);127// }128//129// @CheckReturnValue130// public AbstractObjectAssert<?, ?> extracting(String propertyOrField) {131// Object value = Extractors.byName(propertyOrField).apply(this.actual);132// String extractedPropertyOrFieldDescription = Extractors.extractedDescriptionOf(new String[]{propertyOrField});133// String description = Description.mostRelevantDescription(this.info.description(), extractedPropertyOrFieldDescription);134// return this.newObjectAssert(value).as(description);135// }136//137// @CheckReturnValue138// public AbstractListAssert<?, List<?>, Object, ObjectAssert<Object>> extracting(Function<? super ACTUAL, ?>... extractors) {139// Objects.requireNonNull(extractors, ShouldNotBeNull.shouldNotBeNull("extractors").create());140// List<Object> values = (List) Stream.of(extractors).map((extractor) -> {141// return extractor.apply(this.actual);142// }).collect(Collectors.toList());143// return (AbstractListAssert) this.newListAssertInstance(values).withAssertionState(this.myself);144// }145//146// @CheckReturnValue147// public <T> AbstractObjectAssert<?, T> extracting(Function<? super ACTUAL, T> extractor) {148// Objects.requireNonNull(extractor, ShouldNotBeNull.shouldNotBeNull("extractor").create());149// T extractedValue = extractor.apply(this.actual);150// return this.newObjectAssert(extractedValue).withAssertionState(this.myself);151// }152//153//154// public <T> SELF returns(T expected, Function<ACTUAL, T> from) {155// Objects.requireNonNull(from, "The given getter method/Function must not be null");156// this.objects.assertEqual(this.info, from.apply(this.actual), expected);157// return (AbstractObjectAssert) this.myself;...

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newListAssertInstance

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1package org.example;2import static org.assertj.core.api.Assertions.assertThat;3import java.util.ArrayList;4import java.util.List;5public class App {6 public static void main(String[] args) {7 List<String> list = new ArrayList<>();8 list.add("one");9 list.add("two");10 list.add("three");11 assertThat(list).newListAssertInstance().contains("one", "two");12 }13}14org.example.App > main() PASSED15public static <ACTUAL> ListAssert<ACTUAL> assertThat(List<ACTUAL> actual) {16 return newListAssertInstance(actual);17 }18public SELF newListAssertInstance(ACTUAL actual) {19 return newListAssertInstance(actual, ListAssert.class);20 }

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newListAssertInstance

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1public class AssertJTest {2 public static void main(String[] args) {3 List<String> list = new ArrayList<String>();4 list.add("one");5 list.add("two");6 list.add("three");7 list.add("four");8 list.add("five");9 AbstractAssert newListAssertInstance = AbstractAssert.newListAssertInstance(list);10 newListAssertInstance.contains("two", atIndex(1));11 newListAssertInstance.doesNotContain("six");12 newListAssertInstance.containsExactly("one", "two", "three", "four", "five");13 newListAssertInstance.containsExactlyInAnyOrder("five", "two", "four", "one", "three");14 newListAssertInstance.containsOnly("one", "two", "three", "four", "five");15 newListAssertInstance.containsOnlyOnce("one", "two", "three", "four", "five");16 newListAssertInstance.containsSequence("one", "two", "three");17 newListAssertInstance.containsSubsequence("three", "four", "five");18 newListAssertInstance.hasSize(5);19 newListAssertInstance.hasSameSizeAs(list);20 newListAssertInstance.isSubsetOf("one", "two", "three", "four", "five", "six");21 newListAssertInstance.isSubsetOf(list);22 newListAssertInstance.isInstanceOf(ArrayList.class);23 newListAssertInstance.isInstanceOfAny(List.class, Set.class, Map.class);24 newListAssertInstance.isInstanceOfAny(List.class, Set.class, Map.class);25 newListAssertInstance.isNotInstanceOf(LinkedList.class);26 newListAssertInstance.isNotInstanceOfAny(List.class, Set.class, Map.class);27 newListAssertInstance.isNotEmpty();28 newListAssertInstance.isSorted();

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newListAssertInstance

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1import org.assertj.core.api.AbstractAssert;2import org.assertj.core.api.Assertions;3import org.assertj.core.api.ListAssert;4import org.assertj.core.data.Index;5import org.assertj.core.util.Lists;6import java.util.List;7import java.util.ArrayList;8import java.util.Arrays;9public class Test {10public static void main(String[] args) {11List<String> list = new ArrayList<String>();12list.add("A");13list.add("B");14list.add("C");15ListAssert<String> listAssert = Assertions.assertThat(list);16ListAssert<String> newListAssert = AbstractAssert.newListAssertInstance(listAssert);17newListAssert.contains("A", Index.atIndex(0));18}19}

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newListAssertInstance

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1import org.assertj.core.api.AbstractAssert;2import org.assertj.core.api.ListAssert;3import org.assertj.core.api.ListAssertBaseTest;4import org.junit.jupiter.api.Test;5import static org.mockito.Mockito.verify;6import java.util.List;7import static org.mockito.Mockito.mock;8public class TestClass extends ListAssertBaseTest {9 protected ListAssert<String> invoke_api_method() {10 return assertions.newListAssertInstance(mock(List.class));11 }12 protected void verify_internal_effects() {13 verify(objects).assertIsInstanceOf(getInfo(assertions), getActual(assertions), List.class);14 }15 public void should_return_new_ListAssert_instance() {16 ListAssert<String> listAssert = assertions.newListAssertInstance(mock(List.class));17 assertNotNull(listAssert);18 }19}20C:\Users\shubham\Desktop>javac -cp .;assertj-core-3.20.2.jar;assertj-core-3.20.2-sources.jar;assertj-core-3.20.2-javadoc.jar;assertj-core-3.20.2-tests.jar;mockito-core-3.11.2.jar;objenesis-3.1.jar TestClass.java21C:\Users\shubham\Desktop>java -cp .;assertj-core-3.20.2.jar;assertj-core-3.20.2-sources.jar;assertj-core-3.20.2-javadoc.jar;assertj-core-3.20.2-tests.jar;mockito-core-3.11.2.jar;objenesis-3.1.jar org.junit.platform.console.ConsoleLauncher --scan-class-path

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newListAssertInstance

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1import org.assertj.core.api.AbstractAssert;2public class AssertJTest {3 public static void main(String[] args) {4 AbstractAssert newListAssertInstance = AbstractAssert.newListAssertInstance("1");5 System.out.println(newListAssertInstance);6 }7}

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newListAssertInstance

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1import org.assertj.core.api.*;2import org.assertj.core.api.Assertions.*;3import java.util.*;4public class NewListAssertInstance {5 public static void main(String[] args) {6 List<Integer> list = new ArrayList<Integer>();7 list.add(1);8 list.add(2);9 list.add(3);10 ListAssert<Integer> listAssert = Assertions.newListAssertInstance(list);11 listAssert.assertThat(list);12 }13}

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newListAssertInstance

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1public class ListAssertTest {2 public void test() {3 ListAssert newListAssertInstance = ListAssert.newListAssertInstance(new ArrayList());4 }5}6public class ListAssertTest {7 public void test() {8 ListAssert newListAssertInstance = ListAssert.newListAssertInstance(new ArrayList());9 }10}11public class ListAssertTest {12 public void test() {13 ListAssert newListAssertInstance = ListAssert.newListAssertInstance(new ArrayList());14 }15}16public class ListAssertTest {17 public void test() {18 ListAssert newListAssertInstance = ListAssert.newListAssertInstance(new ArrayList());19 }20}21public class ListAssertTest {22 public void test() {23 ListAssert newListAssertInstance = ListAssert.newListAssertInstance(new ArrayList());24 }25}26public class ListAssertTest {27 public void test() {28 ListAssert newListAssertInstance = ListAssert.newListAssertInstance(new ArrayList());29 }30}31public class ListAssertTest {32 public void test() {33 ListAssert newListAssertInstance = ListAssert.newListAssertInstance(new ArrayList());34 }35}36public class ListAssertTest {37 public void test() {38 ListAssert newListAssertInstance = ListAssert.newListAssertInstance(new ArrayList());39 }40}41public class ListAssertTest {42 public void test() {

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newListAssertInstance

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1import org.assertj.core.api.AbstractAssert;2import org.assertj.core.api.ListAssert;3import java.util.List;4import java.util.ArrayList;5public class AssertJExample {6 public static void main(String[] args) {7 List<Integer> list = new ArrayList<Integer>();8 list.add(1);9 list.add(2);10 list.add(3);11 ListAssert<Integer> listAssert = AbstractAssert.newListAssertInstance(list);12 listAssert.contains(1);13 }14}15AssertJ - How to test an exception using assertThatThrownBy()?16AssertJ - How to test an exception using assertThatExceptionOfType()?17AssertJ - How to test an exception using assertThatCode()?18AssertJ - How to test an exception using assertThat()?19AssertJ - How to test an exception using catchThrowable()?20AssertJ - How to test an exception using catchThrowableOfType()?21AssertJ - How to test an exception using catchThrowableOfType()?22AssertJ - How to test an exception using catchThrowable()?23AssertJ - How to test an exception using assertThat()?24AssertJ - How to test an exception using assertThatCode()?25AssertJ - How to test an exception using assertThatExceptionOfType()?26AssertJ - How to test an exception using assertThatThrownBy()?27AssertJ - How to test an exception using assertThatThrownBy()?28AssertJ - How to test an exception using assertThatExceptionOfType()?29AssertJ - How to test an exception using assertThatCode()?30AssertJ - How to test an exception using assertThat()?31AssertJ - How to test an exception using catchThrowable()?32AssertJ - How to test an exception using catchThrowableOfType()?33AssertJ - How to test an exception using catchThrowableOfType()?34AssertJ - How to test an exception using catchThrowable()?35AssertJ - How to test an exception using assertThat()?36AssertJ - How to test an exception using assertThatCode()?37AssertJ - How to test an exception using assertThatExceptionOfType()?38AssertJ - How to test an exception using assertThatThrownBy()?39AssertJ - How to test an exception using assertThatThrownBy()?

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