How to use IterableUtil method of org.assertj.core.util.IterableUtil class

Best Assertj code snippet using org.assertj.core.util.IterableUtil.IterableUtil

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...14import java.util.ArrayList;15import java.util.List;16import org.assertj.core.api.Assertions;17import org.assertj.core.util.Arrays;18import org.assertj.core.util.IterableUtil;19import org.assertj.core.util.Lists;20import org.junit.jupiter.api.Test;21/​**22 * Tests for {@link StandardComparisonStrategy#duplicatesFrom(java.util.Collection)}.<br>23 *24 * @author Joel Costigliola25 */​26public class StandardComparisonStrategy_duplicatesFrom_Test extends AbstractTest_StandardComparisonStrategy {27 @Test28 public void should_return_existing_duplicates() {29 List<String> list = Lists.newArrayList("Merry", "Frodo", null, null, "Merry", "Sam", "Frodo");30 Iterable<?> duplicates = AbstractTest_StandardComparisonStrategy.standardComparisonStrategy.duplicatesFrom(list);31 Assertions.assertThat(IterableUtil.sizeOf(duplicates)).isEqualTo(3);32 Assertions.assertThat(AbstractTest_StandardComparisonStrategy.standardComparisonStrategy.iterableContains(duplicates, "Frodo")).isTrue();33 Assertions.assertThat(AbstractTest_StandardComparisonStrategy.standardComparisonStrategy.iterableContains(duplicates, "Merry")).isTrue();34 Assertions.assertThat(AbstractTest_StandardComparisonStrategy.standardComparisonStrategy.iterableContains(duplicates, null)).isTrue();35 }36 @Test37 public void should_return_existing_duplicates_array() {38 List<String[]> list = Lists.newArrayList(Arrays.array("Merry"), Arrays.array("Frodo"), new String[]{ null }, new String[]{ null }, Arrays.array("Merry"), Arrays.array("Sam"), Arrays.array("Frodo"));39 Iterable<?> duplicates = AbstractTest_StandardComparisonStrategy.standardComparisonStrategy.duplicatesFrom(list);40 Assertions.assertThat(AbstractTest_StandardComparisonStrategy.standardComparisonStrategy.iterableContains(duplicates, new String[]{ null })).as("must contains null").isTrue();41 Assertions.assertThat(AbstractTest_StandardComparisonStrategy.standardComparisonStrategy.iterableContains(duplicates, Arrays.array("Frodo"))).as("must contains Frodo").isTrue();42 Assertions.assertThat(AbstractTest_StandardComparisonStrategy.standardComparisonStrategy.iterableContains(duplicates, Arrays.array("Merry"))).as("must contains Merry").isTrue();43 Assertions.assertThat(IterableUtil.sizeOf(duplicates)).isEqualTo(3);44 }45 @Test46 public void should_not_return_any_duplicates() {47 Iterable<?> duplicates = AbstractTest_StandardComparisonStrategy.standardComparisonStrategy.duplicatesFrom(Lists.newArrayList("Frodo", "Sam", "Gandalf"));48 Assertions.assertThat(IterableUtil.isNullOrEmpty(duplicates)).isTrue();49 }50 @Test51 public void should_not_return_any_duplicates_if_collection_is_empty() {52 Iterable<?> duplicates = AbstractTest_StandardComparisonStrategy.standardComparisonStrategy.duplicatesFrom(new ArrayList());53 Assertions.assertThat(IterableUtil.isNullOrEmpty(duplicates)).isTrue();54 }55 @Test56 public void should_not_return_any_duplicates_if_collection_is_null() {57 Iterable<?> duplicates = AbstractTest_StandardComparisonStrategy.standardComparisonStrategy.duplicatesFrom(null);58 Assertions.assertThat(IterableUtil.isNullOrEmpty(duplicates)).isTrue();59 }60}...

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...15import java.util.Collections;16import org.assertj.core.api.Assertions;17import org.junit.jupiter.api.Test;18/​**19 * Tests for <code>{@link IterableUtil#toArray(Iterable)}</​code>.20 *21 * @author Jean-Christophe Gay22 */​23public class IterableUtil_toArray_Test {24 private final ArrayList<String> values = Lists.newArrayList("one", "two");25 @Test26 public void should_return_null_when_given_iterable_is_null() {27 Assertions.assertThat(IterableUtil.toArray(null)).isNull();28 Assertions.assertThat(IterableUtil.toArray(null, Object.class)).isNull();29 }30 @Test31 public void should_return_an_object_array_with_given_iterable_elements() {32 Object[] objects = IterableUtil.toArray(values);33 Assertions.assertThat(objects).containsExactly("one", "two");34 String[] strings = IterableUtil.toArray(values, String.class);35 Assertions.assertThat(strings).containsExactly("one", "two");36 }37 @Test38 public void should_return_empty_array_when_given_iterable_is_empty() {39 Assertions.assertThat(IterableUtil.toArray(Collections.emptyList())).isEmpty();40 Assertions.assertThat(IterableUtil.toArray(Collections.emptyList(), Object.class)).isEmpty();41 }42 @Test43 public void should_return_an_array_of_given_iterable_type_with_given_iterable_elements() {44 CharSequence[] result = IterableUtil.toArray(values, CharSequence.class);45 Assertions.assertThat(result).containsExactly("one", "two");46 }47}...

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...6import static org.assertj.core.api.Assertions.assertThatThrownBy;7/​**8 * Created by lucky on 27.12.16.9 */​10public class IterableUtilTest {11 @Test12 public void testWithFirstNull() throws Exception {13 assertThatThrownBy(() -> IterableUtil.concat(null, new ArrayList<>())).isInstanceOf(NullPointerException.class);14 }15 @Test16 public void testWithSecondNull() throws Exception {17 assertThatThrownBy(() -> IterableUtil.concat(null, new ArrayList<>())).isInstanceOf(NullPointerException.class);18 }19 @Test20 public void testEmpty() throws Exception {21 Iterable<String> iterable = IterableUtil.concat(new ArrayList<>(), new ArrayList<>());22 assertThat(iterable.iterator()).isNotNull();23 assertThat(iterable).isEmpty();24 assertThat(iterable.iterator().hasNext()).isFalse();25 }26 @Test27 public void testSecondEmpty() throws Exception {28 Iterable<String> iterable = IterableUtil.concat(Arrays.asList("one", "two"), new ArrayList<>());29 assertThat(iterable).containsExactly("one", "two");30 }31 @Test32 public void testFirstEmpty() throws Exception {33 Iterable<String> iterable = IterableUtil.concat(new ArrayList<>(), Arrays.asList("one", "two"));34 assertThat(iterable).containsExactly("one", "two");35 }36 @Test37 public void testConcat() throws Exception {38 Iterable<String> iterable = IterableUtil.concat(39 Arrays.asList("one", "two"),40 Arrays.asList("three", "four", "five"));41 /​/​ multiple iteration42 assertThat(iterable).containsExactly("one", "two", "three", "four", "five");43 assertThat(iterable).containsExactly("one", "two", "three", "four", "five");44 assertThat(iterable).containsExactly("one", "two", "three", "four", "five");45 }46}...

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IterableUtil

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1import org.assertj.core.util.IterableUtil;2import java.util.Arrays;3import java.util.List;4public class 1 {5 public static void main(String[] args) {6 List<Integer> list = Arrays.asList(1, 2, 3, 4, 5);7 IterableUtil.iterable(list);8 System.out.println("IterableUtil: " + IterableUtil.iterable(list));9 }10}

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IterableUtil

Using AI Code Generation

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1import org.assertj.core.util.IterableUtil;2import java.util.Arrays;3public class IterableUtilExample {4 public static void main(String[] args) {5 Iterable<Integer> iterable = Arrays.asList(1, 2, 3, 4, 5);6 System.out.println(IterableUtil.toArray(iterable, Integer.class));7 }8}

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IterableUtil

Using AI Code Generation

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1import org.assertj.core.util.IterableUtil;2import java.util.List;3import java.util.ArrayList;4public class IterableUtilExample {5 public static void main(String[] args) {6 List<String> list = new ArrayList<>();7 list.add("A");8 list.add("B");9 list.add("C");10 list.add("D");11 list.add("E");12 System.out.println(IterableUtil.join(list));13 }14}15Example 2: Using IterableUtil.join() method with delimiter16import org.assertj.core.util.IterableUtil;17import java.util.List;18import java.util.ArrayList;19public class IterableUtilExample {20 public static void main(String[] args) {21 List<String> list = new ArrayList<>();22 list.add("A");23 list.add("B");24 list.add("C");25 list.add("D");26 list.add("E");27 System.out.println(IterableUtil.join(list, " "));28 }29}30Example 3: Using IterableUtil.join() method with delimiter and prefix and suffix31import org.assertj.core.util.IterableUtil;32import java.util.List;33import java.util.ArrayList;34public class IterableUtilExample {35 public static void main(String[] args) {36 List<String> list = new ArrayList<>();37 list.add("A");38 list.add("B");39 list.add("C");40 list.add("D");41 list.add("E");42 System.out.println(IterableUtil.join(list, " ", "(", ")"));43 }44}45Example 4: Using IterableUtil.join() method with delimiter, prefix, suffix and elementFormatter46import org.assertj.core.util.IterableUtil;47import java.util.List;48import java.util.ArrayList;49import java.util.function.Function;50public class IterableUtilExample {51 public static void main(String[] args) {52 List<String> list = new ArrayList<>();53 list.add("A");54 list.add("B");55 list.add("C");56 list.add("D");57 list.add("E");

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IterableUtil

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1import org.assertj.core.util.IterableUtil;2import java.util.ArrayList;3import java.util.List;4public class IterableUtilExample {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 list.add(4);11 list.add(5);12 IterableUtil.forEach(list).accept(System.out::println);13 }14}

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IterableUtil

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1package org.example;2import org.assertj.core.util.IterableUtil;3import java.util.List;4import java.util.ArrayList;5public class App {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 list.add(4);12 list.add(5);13 System.out.println(IterableUtil.sizeOf(list));14 }15}16Recommended Posts: Java | IterableUtil.first(Iterable) method17Java | IterableUtil.last(Iterable) method18Java | IterableUtil.sizeOf(Iterable) method19Java | IterableUtil.toArray(Iterable) method20Java | IterableUtil.toList(Iterable) method21Java | IterableUtil.toSet(Iterable) method22Java | IterableUtil.toCollection(Iterable) method23Java | IterableUtil.contains(Iterable, Object) method24Java | IterableUtil.containsAll(Iterable, Iterable) method25Java | IterableUtil.containsAny(Iterable, Iterable) method26Java | IterableUtil.containsOnly(Iterable, Iterable) method27Java | IterableUtil.containsOnlyNulls(Iterable) method28Java | IterableUtil.containsOnlyOnce(Iterable, Object) method29Java | IterableUtil.containsOnlyOnce(Iterable, Object[]) method30Java | IterableUtil.containsOnlyOnce(Iterable, Iterable) method31Java | IterableUtil.containsOnlyOnce(Iterable, Object, Object) method32Java | IterableUtil.containsOnlyOnce(Iterable, Object, Object, Object) method33Java | IterableUtil.containsOnlyOnce(Iterable, Object, Object, Object, Object) method34Java | IterableUtil.containsOnlyOnce(Iterable, Object, Object, Object, Object, Object) method35Java | IterableUtil.containsOnlyOnce(Iterable, Object, Object, Object, Object, Object, Object) method36Java | IterableUtil.containsOnlyOnce(Iterable, Object, Object, Object, Object, Object, Object, Object) method37Java | IterableUtil.containsOnlyOnce(Iterable, Object, Object, Object, Object, Object, Object, Object, Object) method38Java | IterableUtil.containsOnlyOnce(Iterable, Object, Object, Object, Object, Object, Object, Object, Object, Object) method39Java | IterableUtil.containsOnlyOnce(Iterable, Object, Object, Object, Object, Object, Object, Object, Object, Object, Object

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IterableUtil

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1import org.assertj.core.util.IterableUtil;2import java.util.List;3import java.util.ArrayList;4public class IterableUtilExample {5 public static void main(String[] args) {6 List<String> list = new ArrayList<String>();7 list.add("Apple");8 list.add("Orange");9 list.add("Banana");10 list.add("Grapes");11 list.add("Pineapple");12 System.out.println("List of fruits: " + list);13 String[] array = IterableUtil.toArray(list);14 System.out.println("Array of fruits: ");15 for (String s : array) {16 System.out.println(s);17 }18 }19}20import org.assertj.core.util.IterableUtil;21import java.util.List;22import java.util.ArrayList;23public class IterableUtilExample {24 public static void main(String[] args) {25 List<String> list = new ArrayList<String>();26 list.add("Apple");27 list.add("Orange");28 list.add("Banana");29 list.add("Grapes");30 list.add("Pineapple");31 System.out.println("List of fruits: " + list);32 List<String> newList = IterableUtil.toList(list);33 System.out.println("New list of fruits: " + newList);34 }35}36import org.assertj.core.util.IterableUtil;37import java.util.List;38import java.util.ArrayList;39public class IterableUtilExample {40 public static void main(String[] args) {41 List<String> list = new ArrayList<String>();42 list.add("Apple");

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IterableUtil

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1import org.assertj.core.util.IterableUtil;2import java.util.ArrayList;3import java.util.List;4import java.util.Arrays;5import java.util.Iterator;6public class IterableUtilExample {7 public static void main(String[] args) {8 List<Integer> list = new ArrayList<Integer>();9 list.add(10);10 list.add(20);11 list.add(30);12 list.add(40);13 list.add(50);14 list.add(60);15 list.add(70);16 list.add(80);17 list.add(90);18 list.add(100);19 Iterator<Integer> it = list.iterator();20 Integer last = IterableUtil.last(it);21 System.out.println("Last element of the list: " + last);22 }23}24Java 9 - java.util.List.of() Method25Java 9 - java.util.List.copyOf() Method26Java 9 - java.util.List.removeIf() Method27Java 9 - java.util.List.replaceAll() Method28Java 9 - java.util.List.sort() Method29Java 9 - java.util.List.iterator() Method30Java 9 - java.util.List.spliterator() Method31Java 9 - java.util.List.stream() Method32Java 9 - java.util.List.parallelStream() Method33Java 9 - java.util.List.removeIf() Method34Java 9 - java.util.List.replaceAll() Method35Java 9 - java.util.List.sort() Method36Java 9 - java.util.List.iterator() Method37Java 9 - java.util.List.spliterator() Method38Java 9 - java.util.List.stream() Method39Java 9 - java.util.List.parallelStream() Method40Java 9 - java.util.List.of() Method41Java 9 - java.util.List.copyOf() Method42Java 9 - java.util.List.removeIf() Method43Java 9 - java.util.List.replaceAll() Method44Java 9 - java.util.List.sort() Method45Java 9 - java.util.List.iterator() Method46Java 9 - java.util.List.spliterator() Method47Java 9 - java.util.List.stream() Method48Java 9 - java.util.List.parallelStream() Method49Java 9 - java.util.List.of() Method50Java 9 - java.util.List.copyOf() Method

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IterableUtil

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1import org.assertj.core.util.IterableUtil;2import java.util.Arrays;3import java.util.HashMap;4import java.util.List;5import java.util.Map;6import java.util.stream.Collectors;7public class Main {8 public static void main(String[] args) {9 List<Integer> list = Arrays.asList(1, 2, 3, 4, 5, 6, 7, 8, 9, 10);10 Map<Integer, List<Integer>> map = new HashMap<>();11 map.put(1, Arrays.asList(1, 2, 3));12 map.put(2, Arrays.asList(4, 5, 6));13 map.put(3, Arrays.asList(7, 8, 9));14 map.put(4, Arrays.asList(10));15 List<Integer> result = IterableUtil.toList(IterableUtil.flatten(map.values().stream().map(x -> x.stream()).collect(Collectors.toList())));16 System.out.println(result);17 }18}

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IterableUtil

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1import org.assertj.core.util.IterableUtil;2public class AssertJIterableUtil {3 public static void main(String[] args) {4 Iterable<String> iterable = IterableUtil.iterable("one", "two", "three");5 System.out.println(iterable);6 }7}

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IterableUtil

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1public class IterableUtil {2 public static void main(String[] args) {3 List<String> list = new ArrayList<String>();4 list.add("Java");5 list.add("Python");6 list.add("C++");7 list.add("C#");8 list.add("Ruby");9 System.out.println("List: " + list);10 Iterable<String> iterable = IterableUtil.iterable(list);11 System.out.println("Iterable: " + iterable);12 }13}

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