How to use compose method of org.assertj.core.condition.NestableCondition class

Best Assertj code snippet using org.assertj.core.condition.NestableCondition.compose

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...131 public static <ACTUAL> Condition<ACTUAL> nestable(String descriptionPrefix, Condition<ACTUAL>... conditions) {132 return new NestableCondition<>(descriptionPrefix, stream(conditions));133 }134 private NestableCondition(String descriptionPrefix, Stream<Condition<NESTED>> conditions, Function<ACTUAL, NESTED> extractor) {135 super(compose(conditions, extractor));136 this.descriptionPrefix = descriptionPrefix;137 }138 private NestableCondition(String descriptionPrefix, Stream<Condition<ACTUAL>> conditions) {139 super(conditions.collect(toList()));140 this.descriptionPrefix = descriptionPrefix;141 }142 @Override143 public boolean matches(ACTUAL value) {144 return conditions.stream().allMatch(condition -> condition.matches(value));145 }146 @Override147 public String descriptionPrefix() {148 return descriptionPrefix;149 }150 private static <ACTUAL, NESTED> List<Condition<ACTUAL>> compose(Stream<Condition<NESTED>> conditions,151 Function<ACTUAL, NESTED> extractor) {152 return conditions.map(condition -> compose(condition, extractor)).collect(toList());153 }154 private static <ACTUAL, NESTED> Condition<ACTUAL> compose(Condition<NESTED> condition, Function<ACTUAL, NESTED> extractor) {155 return new Condition<ACTUAL>() {156 @Override157 public boolean matches(ACTUAL value) {158 return condition.matches(extractor.apply(value));159 }160 @Override161 public Description conditionDescriptionWithStatus(ACTUAL actual) {162 return condition.conditionDescriptionWithStatus(extractor.apply(actual));163 }164 };165 }166}...

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1import org.assertj.core.api.Condition;2import org.assertj.core.api.ListAssert;3import org.assertj.core.condition.NestableCondition;4import org.assertj.core.data.Index;5import org.junit.jupiter.api.Test;6import java.util.Arrays;7import java.util.List;8import static org.assertj.core.api.Assertions.assertThat;9import static org.assertj.core.api.Assertions.atIndex;10public class AssertJListTest {11 public void givenList_whenEmpty_thenCorrect() {12 List<String> list = Arrays.asList();13 assertThat(list).isEmpty();14 }15 public void givenList_whenNotEmpty_thenCorrect() {16 List<String> list = Arrays.asList("one", "two");17 assertThat(list).isNotEmpty();18 }19 public void givenList_whenContains_thenCorrect() {20 List<String> list = Arrays.asList("one", "two");21 assertThat(list).contains("one");22 }23 public void givenList_whenContainsOnly_thenCorrect() {24 List<String> list = Arrays.asList("one", "two");25 assertThat(list).containsOnly("one", "two");26 }27 public void givenList_whenContainsExactly_thenCorrect() {28 List<String> list = Arrays.asList("one", "two");29 assertThat(list).containsExactly("one", "two");30 }31 public void givenList_whenContainsNull_thenCorrect() {32 List<String> list = Arrays.asList("one", null);33 assertThat(list).containsNull();34 }35 public void givenList_whenContainsOnlyNulls_thenCorrect() {36 List<String> list = Arrays.asList(null, null);37 assertThat(list).containsOnlyNulls();38 }39 public void givenList_whenNotContainsNull_thenCorrect() {40 List<String> list = Arrays.asList("one", "two");41 assertThat(list).doesNotContainNull();42 }43 public void givenList_whenContainsSequence_thenCorrect() {44 List<String> list = Arrays.asList("one", "two", "three");45 assertThat(list).containsSequence("one", "three");46 }47 public void givenList_whenContainsSubsequence_thenCorrect() {48 List<String> list = Arrays.asList("one", "two", "three");49 assertThat(list).containsSubsequence("one", "three");50 }

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1import org.assertj.core.api.Condition;2import org.assertj.core.condition.NestableCondition;3public class ComposeCondition {4 public static void main(String[] args) {5 Condition<String> condition = new Condition<String>(6 (String s) -> s.startsWith("A"), "starts with 'A'");7 NestableCondition<String> nestableCondition = new NestableCondition<>(condition);8 .and("is not null", s -> s != null)9 .and("is not empty", s -> !s.isEmpty());10 System.out.println(composedCondition.matches("A"));11 System.out.println(composedCondition.matches("B"));12 System.out.println(composedCondition.matches(null));13 System.out.println(composedCondition.matches(""));14 }15}

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1import org.assertj.core.api.Condition;2import org.assertj.core.condition.NestableCondition;3public class CustomCondition {4 public static void main(String[] args) {5 Condition<String> condition = new Condition<String>() {6 public boolean matches(String value) {7 return value.startsWith("A");8 }9 };10 Condition<String> customCondition = new NestableCondition<>(condition)11 .as("starts with A")12 .because("it's a custom condition");13 System.out.println(customCondition.matches("Abc"));14 }15}

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1NestableCondition<String> condition = new NestableCondition<String>("String") {2 public boolean matches(String value) {3 return value.equals("String");4 }5};6assertThat("String").is(condition.compose(new Condition<String>() {7 public boolean matches(String value) {8 return value.equals("String");9 }10}));11assertThat("String").is(condition.compose(new Condition<String>() {12 public boolean matches(String value) {13 return value.equals("String");14 }15}, "String"));16assertThat("String").is(condition.compose(new Condition<String>() {17 public boolean matches(String value) {18 return value.equals("String");19 }20}, "String", "String"));21assertThat("String").is(condition.compose(new Condition<String>() {22 public boolean matches(String value) {23 return value.equals("String");24 }25}, "String", "String", "String"));26assertThat("String").is(condition.compose(new Condition<String>() {27 public boolean matches(String value) {28 return value.equals("String");29 }30}, "String", "String", "String", "String"));31assertThat("String").is(condition.compose(new Condition<String>() {32 public boolean matches(String value) {33 return value.equals("String");34 }35}, "String", "String", "String", "String", "String"));36assertThat("String").is(condition.compose(new Condition<String>() {37 public boolean matches(String value) {38 return value.equals("String");39 }40}, "String", "String", "String", "String", "String", "String"));41assertThat("String").is(condition.compose(new Condition<String>() {42 public boolean matches(String value) {43 return value.equals("String");44 }45}, "String", "String", "String", "String", "String", "String", "String"));46assertThat("String").is(condition.compose(new Condition<String>() {47 public boolean matches(String value) {48 return value.equals("String");49 }50}, "String", "String", "String", "String", "String", "String", "String", "String"));51assertThat("String").is(condition.compose(new Condition<String>() {52 public boolean matches(String value) {53 return value.equals("String

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1public class ConditionExample {2 public void testCondition() {3 assertThat("Hello World").has(new Condition<String>() {4 public boolean matches(String value) {5 return value.startsWith("Hello") && value.endsWith("World");6 }7 });8 }9}10public class ConditionExample {11 public void testCondition() {12 assertThat("Hello World").has(new Condition<String>() {13 public boolean matches(String value) {14 return value.startsWith("Hello") && value.endsWith("World");15 }16 }.as("a string starting with 'Hello' and ending with 'World'"));17 }18}19public class ConditionExample {20 public void testCondition() {21 assertThat("Hello World").has(new Condition<String>() {22 public boolean matches(String value) {23 return value.startsWith("Hello") && value.endsWith("World");24 }25 }.as("a string starting with 'Hello' and ending with 'World'").because("it is required"));26 }27}28public class ConditionExample {29 public void testCondition() {30 assertThat("Hello World").has(new Condition<String>() {31 public boolean matches(String value) {32 return value.startsWith("Hello") && value.endsWith("World");33 }34 }.as("a string starting with 'Hello' and ending with 'World'").because("it is required").becauseOf("some additional information"));35 }36}37public class ConditionExample {38 public void testCondition() {39 assertThat("Hello World").has(new Condition<String>() {40 public boolean matches(String value) {41 return value.startsWith("Hello") && value.endsWith("World");42 }43 }.as("a string starting with 'Hello' and ending with 'World'").because("it is required").becauseOf("some additional information").describedAs("some additional description"));44 }45}46public class ConditionExample {

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1public class Test {2 public void test() {3 Condition<Person> condition = new Condition<>(p -> p.getAge() > 18, "is over 18");4 Condition<Person> condition2 = new Condition<>(p -> p.getAge() < 50, "is under 50");5 Condition<Person> condition3 = new Condition<>(p -> p.getAge() > 25, "is over 25");6 Person person = new Person("John Doe", 24);7 assertThat(person).is(condition.and(condition2).and(condition3));8 }9}10Example 2: Composing conditions using or() method11public class Test {12 public void test() {13 Condition<Person> condition = new Condition<>(p -> p.getAge() > 18, "is over 18");14 Condition<Person> condition2 = new Condition<>(p -> p.getAge() < 50, "is under 50");15 Condition<Person> condition3 = new Condition<>(p -> p.getAge() > 25, "is over 25");16 Person person = new Person("John Doe", 24);17 assertThat(person).is(condition.or(condition2).or(condition3));18 }19}20Example 3: Composing conditions using negate() method21public class Test {22 public void test() {23 Condition<Person> condition = new Condition<>(p -> p.getAge() > 18, "is over 18");24 Condition<Person> condition2 = new Condition<>(p -> p.getAge() < 50, "is under 50");25 Condition<Person> condition3 = new Condition<>(p -> p.getAge() > 25, "is over 25");26 Person person = new Person("John Doe",

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