How to use Predicates class of org.assertj.core.internal package

Best Assertj code snippet using org.assertj.core.internal.Predicates

Source:AssertJChainSimplificationCheck.java

...60        predicates.add(nextPredicate);61      }62      nextPredicateOpt = MethodTreeUtils.consecutiveMethodInvocation(nextPredicate);63    }64    boolean wasIssueRaised = checkPredicatesForSimplification(65      predicates, CONTEXT_FREE_SIMPLIFIERS, SimplifierWithoutContext::simplify,66      (predicate, simplification) -> createIssueBuilder(predicate, simplification).report()67    );68    // We do not continue when we have already raised an issue to avoid potentially conflicting issue reports. If we69    // have more than one predicate we also avoid continuing to avoid FP on cases such as:70    // assertThat(Integer.valueOf(1).compareTo(2)).isGreaterThan(1).isLessThan(10)71    // We also want to ignore all assertion chains that contain methods besides predicates and messages, such as those72    // that change the assertion context, as that level of complexity is not handled by this rule. The extraction73    // function is such an example:74    // assertThat(frodo).extracting("name", as(InstanceOfAssertFactories.STRING)).startsWith("Fro");75    if (wasIssueRaised || predicates.size() > 1) {76      return;77    }78    checkPredicatesForSimplification(79      predicates, SIMPLIFIERS_WITH_CONTEXT, (simplifier, predicate) -> simplifier.simplify(subjectMit, predicate),80      (predicate, simplification) -> createIssueBuilder(predicate, simplification)81        .withSecondaries(new JavaFileScannerContext.Location("This can be simplified", subjectMit.arguments().get(0)))82        .report()83    );84  }85  private InternalJavaIssueBuilder createIssueBuilder(MethodInvocationTree predicate, AssertJChainSimplificationIndex.Simplification simplification) {86    InternalJavaIssueBuilder builder = QuickFixHelper.newIssue(context)87      .forRule(this)88      .onTree(ExpressionUtils.methodName(predicate))89      .withMessage(ISSUE_MESSAGE_FORMAT_STRING, simplification.getReplacement());90    simplification.getQuickFix().ifPresent(builder::withQuickFixes);91    return builder;92  }93  /**94   * @return {@code true} when an issue was reported, {@code false} otherwise.95   */96  private static <T> boolean checkPredicatesForSimplification(97    List<MethodInvocationTree> predicates,98    Map<String, List<T>> simplifiers,99    BiFunction<T, MethodInvocationTree, Optional<AssertJChainSimplificationIndex.Simplification>> simplificationMethod,100    BiConsumer<MethodInvocationTree, AssertJChainSimplificationIndex.Simplification> reportingMethod) {101    AssertJChainSimplificationHelper.BooleanFlag issueRaised = new AssertJChainSimplificationHelper.BooleanFlag();102    predicates.forEach(predicate -> {103      String predicateName = ExpressionUtils.methodName(predicate).name();104      if (simplifiers.containsKey(predicateName)) {105        simplifiers.get(predicateName).stream()106          .map(simplifier -> simplificationMethod.apply(simplifier, predicate))107          .filter(Optional::isPresent)108          .map(Optional::get)109          .findFirst()110          .ifPresent(replacement -> {...

Source:Predicates.java

...13package org.assertj.core.internal;14import static org.assertj.core.util.Preconditions.checkNotNull;15import java.util.function.Predicate;16import org.assertj.core.util.VisibleForTesting;17public class Predicates {18  private static final Predicates INSTANCE = new Predicates();19  /**20   * Returns the singleton instance of this class.21   * @return the singleton instance of this class.22   */23  public static Predicates instance() {24    return INSTANCE;25  }26  @VisibleForTesting27  Failures failures = Failures.instance();28  @VisibleForTesting29  Predicates() {}30  /**31   * Asserts the the given <code>{@link Predicate}</code> is not null.32   * @param predicate the given {@code Predicate}.33   * @throws NullPointerException if the given {@code Predicate} is {@code null}.34   */35  public void assertIsNotNull(Predicate<?> predicate) {36    checkNotNull(predicate, "The predicate to evaluate should not be null");37  }38}...

Predicates

Using AI Code Generation

1public class Predicates {2  public static <T> Predicate<T> alwaysTrue() {3    return new Predicate<T>() {4      public boolean apply(T input) {5        return true;6      }7    };8  }9}10public class Predicates {11  public static <T> Predicate<T> alwaysTrue() {12    return new Predicate<T>() {13      public boolean apply(T input) {14        return true;15      }16    };17  }18}19public class Predicates {20  public static <T> Predicate<T> alwaysTrue() {21    return new Predicate<T>() {22      public boolean apply(T input) {23        return true;24      }25    };26  }27}28public class Predicates {29  public static <T> Predicate<T> alwaysTrue() {30    return new Predicate<T>() {31      public boolean apply(T input) {32        return true;33      }34    };35  }36}37public class Predicates {38  public static <T> Predicate<T> alwaysTrue() {39    return new Predicate<T>() {40      public boolean apply(T input) {41        return true;42      }43    };44  }45}46public class Predicates {47  public static <T> Predicate<T> alwaysTrue() {48    return new Predicate<T>() {49      public boolean apply(T input) {50        return true;51      }52    };53  }54}55public class Predicates {56  public static <T> Predicate<T> alwaysTrue() {57    return new Predicate<T>() {58      public boolean apply(T input) {59        return true;60      }61    };62  }63}64public class Predicates {65  public static <T> Predicate<T> alwaysTrue() {66    return new Predicate<T>() {67      public boolean apply(T input) {68        return true;69      }70    };71  }72}73public class Predicates {74  public static <T> Predicate<T> alwaysTrue() {75    return new Predicate<T>() {76      public boolean apply(T input) {77        return true;78      }79    };80  }81}

Predicates

Using AI Code Generation

1import org.assertj.core.api.Assertions;2import org.assertj.core.internal.Predicates;3import org.junit.Test;4public class PredicatesTest {5    public void test() {6        Assertions.assertThat(Predicates.instanceOf(String.class).test("hello")).isTrue();7    }8}9at org.junit.Assert.assertEquals(Assert.java:115)10at org.junit.Assert.assertEquals(Assert.java:144)11at org.assertj.core.api.AbstractAssert.isEqualTo(AbstractAssert.java:65)12at org.assertj.core.api.Assertions.assertThat(Assertions.java:1411)13at org.assertj.core.api.Assertions.assertThat(Assertions.java:123)14at org.assertj.core.api.Assertions.assertThat(Assertions.java:118)15at org.assertj.core.api.Assertions.assertThat(Assertions.java:110)16at org.assertj.core.api.Assertions.assertThat(Assertions.java:106)17at org.assertj.core.api.Assertions.assertThat(Assertions.java:102)18at org.assertj.core.api.Assertions.assertThat(Assertions.java:98)19at org.assertj.core.api.Assertions.assertThat(Assertions.java:94)20at org.assertj.core.api.Assertions.assertThat(Assertions.java:90)21at org.assertj.core.api.Assertions.assertThat(Assertions.java:86)22at org.assertj.core.api.Assertions.assertThat(Assertions.java:82)23at org.assertj.core.api.Assertions.assertThat(Assertions.java:78)24at org.assertj.core.api.Assertions.assertThat(Assertions.java:74)25at org.assertj.core.api.Assertions.assertThat(Assertions.java:70)26at org.assertj.core.api.Assertions.assertThat(Assertions.java:66)27at org.assertj.core.api.Assertions.assertThat(Assertions.java:62)28at org.assertj.core.api.Assertions.assertThat(Assertions.java:58)29at org.assertj.core.api.Assertions.assertThat(Assertions.java:54)30at org.assertj.core.api.Assertions.assertThat(Assertions.java:50)31at org.assertj.core.api.Assertions.assertThat(Assertions.java:46)32at org.assertj.core.api.Assertions.assertThat(Assertions.java:42)33at org.assertj.core.api.Assertions.assertThat(Assertions.java:38)34at org.assertj.core.api.Assertions.assertThat(Assertions.java:34)35at org.assertj.core.api.Assertions.assertThat(Assertions.java:30)36at org.assertj.core.api.Assertions.assertThat(Assertions.java:26)

Predicates

Using AI Code Generation

1package com.automationrhapsody.junit;2import static org.assertj.core.api.Assertions.assertThat;3import java.util.ArrayList;4import java.util.List;5import org.assertj.core.internal.Predicates;6import org.junit.Test;7public class PredicatesTest {8    public void testPredicates() {9        List<String> names = new ArrayList<>();10        names.add("John");11        names.add("Mary");12        names.add("John");13        assertThat(names).are(Predicates.not(Predicates.<String> in("Mary")));14    }15}16Expected: (a collection containing "John" and a collection containing "John" and not a collection containing "Mary")

Predicates

Using AI Code Generation

1import org.assertj.core.internal.Predicates;2import org.assertj.core.api.Assertions;3import org.junit.Test;4public class PredicatesTest {5    public void testPredicates() {6        Predicates predicates = new Predicates();7        Assertions.assertThat(predicates).isNotNull();8    }9}

Predicates

Using AI Code Generation

1import static org.assertj.core.api.Assertions.*;2import org.assertj.core.api.AbstractAssert;3import org.assertj.core.internal.*;4import org.assertj.core.api.*;5import org.assertj.core.api.Assertions;6import org.assertj.core.internal.Objects;7import org.a

Predicates

Using AI Code Generation

1public class Predicates {2  public static Predicate<Comparable> isLessThan(Comparable value) {3    return new IsLessThan(value);4  }5}6public class Predicates {7  public static Predicate<Comparable> isLessThan(Comparable value) {8    return new IsLessThan(value);9  }10}11public class Predicates {12  public static Predicate<Comparable> isLessThan(Comparable value) {13    return new IsLessThan(value);14  }15}16public class Predicates {17  public static Predicate<Comparable> isLessThan(Comparable value) {18    return new IsLessThan(value);19  }20}21public class Predicates {22  public static Predicate<Comparable> isLessThan(Comparable value) {23    return new IsLessThan(value);24  }25}26public class Predicates {27  public static Predicate<Comparable> isLessThan(Comparable value) {28    return new IsLessThan(value);29  }30}31public class Predicates {32  public static Predicate<Comparable> isLessThan(Comparable value) {33    return new IsLessThan(value);34  }35}36public class Predicates {37  public static Predicate<Comparable> isLessThan(Comparable value) {38    return new IsLessThan(value);39  }40}41public class Predicates {42  public static Predicate<Comparable> isLessThan(Comparable value) {43    return new IsLessThan(value);44  }45}46public class Predicates {47  public static Predicate<Comparable> isLessThan(Comparable value) {48    return new IsLessThan(value);49  }

Predicates

Using AI Code Generation

1public class Predicates {2	public static Predicate<String> isEmptyOrNullString() {3		return new Predicate<String>() {4			public boolean test(String s) {5				return s == null || s.isEmpty();6			}7		};8	}9}10public class PredicatesTest {11	public void testPredicate() {12		Predicate<String> predicate = Predicates.isEmptyOrNullString();13		boolean result = predicate.test("Test");14		Assert.assertTrue(result);15	}16}17	at org.junit.Assert.fail(Assert.java:88)18	at org.junit.Assert.failNotEquals(Assert.java:834)19	at org.junit.Assert.assertEquals(Assert.java:645)20	at org.junit.Assert.assertEquals(Assert.java:631)21	at org.assertj.core.internal.PredicatesTest.testPredicate(PredicatesTest.java:16)

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