How to use VerboseCondition method of org.assertj.core.condition.VerboseCondition class

Best Assertj code snippet using org.assertj.core.condition.VerboseCondition.VerboseCondition

Source:VerboseCondition.java

...25 * When defining the {@code objectUnderTestDescriptor} function, you should take in consideration whether the condition is going to be used 26 * with {@link AbstractAssert#is(Condition) is(Condition)} or {@link AbstractAssert#has(Condition) has(Condition)} since the start of the error message is different between the two.  27 * <p>28 * Let's see how it works with an example that works well with {@link AbstractAssert#is(Condition) is(Condition)}:29 * <pre><code class='java'> Condition&lt;String&gt; shorterThan4 = VerboseCondition.verboseCondition(actual -&gt; actual.length() &lt; 4,30                                                                   // predicate description  31                                                                   "shorter than 4",32                                                                   // value under test description transformation function33                                                                   s -&gt; String.format(" but length was %s", s.length(), s));</code></pre>34 * 35 * If we execute:36 * <pre><code class='java'> assertThat("foooo").is(shorterThan4);</code></pre>37 * it fails with the following assertion error:38 * <pre><code class='text'> Expecting actual:39 *   "foooo"40 * to be shorter than 4 but length was 5</code></pre>41 * <p>42 * Note that the beginning of the error message looks nice with {@link AbstractAssert#is(Condition) is(Condition)}, but not so much with {@link AbstractAssert#has(Condition) has(Condition)}:43 * <pre><code class='text'> Expecting actual:44 *   "foooo"45 * to have shorter than 4 but length was 5</code></pre>46 * <p>47 * The {@code objectUnderTestDescriptor} must not be null, if you don't need one this probably means you can simply use {@link Condition#Condition(Predicate, String, Object...)} instead of a {@code VerboseCondition}.48 * 49 * @param <T> the type of object the given condition accept.50 *51 * @author Stefan Bischof52 */53@Beta54public final class VerboseCondition<T> extends Condition<T> {55  private Function<T, String> objectUnderTestDescriptor;56  // needed to avoid an incorrect description when matches is run multiple times.57  private String description;58  /**59   * Creates a new <code>{@link VerboseCondition}</code> to have better control over the condition description when the condition fails thanks 60   * to the {@code objectUnderTestDescriptor} function parameter.61   * <p>62   * When defining the {@code objectUnderTestDescriptor} function, you should take in consideration whether the condition is going to be used 63   * with {@link AbstractAssert#is(Condition) is(Condition)} or {@link AbstractAssert#has(Condition) has(Condition)} since the start of the error message is different between the two.  64   * <p>65   * Let's see how it works with an example that works well with {@link AbstractAssert#is(Condition) is(Condition)}:66   * <pre><code class='java'> Condition&lt;String&gt; shorterThan4 = VerboseCondition.verboseCondition(actual -&gt; actual.length() &lt; 4,67                                                                    // predicate description  68                                                                    "shorter than 4",69                                                                    // value under test description transformation function70                                                                    s -&gt; String.format(" but length was %s", s.length(), s));</code></pre>71   * 72   * If we execute:73   * <pre><code class='java'> assertThat("foooo").is(shorterThan4);</code></pre>74   * it fails with the following assertion error:75   * <pre><code class='text'> Expecting actual:76   *   "foooo"77   * to be shorter than 4 but length was 5</code></pre>78   * <p>79   * Note that the beginning of the error message looks nice with {@link AbstractAssert#is(Condition) is(Condition)}, but not so much with {@link AbstractAssert#has(Condition) has(Condition)}:80   * <pre><code class='text'> Expecting actual:81   *   "foooo"82   * to have shorter than 4 but length was 5</code></pre>83   * <p>84   * The {@code objectUnderTestDescriptor} must not be null, if you don't need one this probably means you can simply use {@link Condition#Condition(Predicate, String, Object...)} instead of a {@code VerboseCondition}.85   *86   * @param <T>                  the type of object the given condition accept.87   * @param predicate            the Predicate that tests the value to test.88   * @param description          describes the Condition verbal.89   * @param objectUnderTestDescriptor Function used to describe the value to test when the actual value does not match the predicate. must not be null.90   * @return the created {@code VerboseCondition}.91   * @throws NullPointerException if the predicate is {@code null}.92   * @throws NullPointerException if the objectUnderTestDescriptor is {@code null}.93   */94  public static <T> VerboseCondition<T> verboseCondition(Predicate<T> predicate, String description,95                                                         Function<T, String> objectUnderTestDescriptor) {96    return new VerboseCondition<>(predicate, description, objectUnderTestDescriptor);97  }98  private VerboseCondition(Predicate<T> predicate, String description, Function<T, String> objectUnderTestDescriptor) {99    super(predicate, description);100    this.description = description;101    this.objectUnderTestDescriptor = requireNonNull(objectUnderTestDescriptor,102                                                    "The objectUnderTest descriptor function must not be null, if you don't need one, consider using the basic Condition(Predicate<T> predicate, String description, Object... args) constructor");103  }104  @Override105  public boolean matches(T objectUnderTest) {106    boolean matches = super.matches(objectUnderTest);107    describedAs(buildVerboseDescription(objectUnderTest, matches));108    return matches;109  }110  /**111   * Build the verbose condition description when applied with the actual values and the match result.112   *...

Source:GrpcResponseMatcher.java

...6import java.util.Base64;7import java.util.Map;8import java.util.Optional;9import static java.lang.String.format;10import static org.assertj.core.condition.VerboseCondition.verboseCondition;11public class GrpcResponseMatcher {12    public static Condition<GeneratedMessageV3> grpcField(final String name) {13        return verboseCondition(14                response -> extractField(response, name).isPresent(),15                format("a response having field '%s'", name),16                response -> " but it is missing"17        );18    }19    public static Condition<GeneratedMessageV3> grpcField(final String name, final Object expectedValue) {20        return verboseCondition(21                response -> expectedValue.equals(extractField(response, name).orElse(null)),22                format("a response having field '%s' = '%s'", name, expectedValue),23                response -> format(" but it has value '%s'", extractField(response, name).orElse(null))24        );...

Source:VerboseConditionTest.java

...14import static java.lang.String.format;15import static org.assertj.core.api.Assertions.assertThat;16import static org.assertj.core.api.Assertions.assertThatNullPointerException;17import static org.assertj.core.api.BDDAssertions.then;18import static org.assertj.core.condition.VerboseCondition.verboseCondition;19import static org.assertj.core.util.AssertionsUtil.expectAssertionError;20import org.assertj.core.api.Condition;21import org.junit.jupiter.api.Test;22class VerboseConditionTest {23  private static final Condition<String> VERBOSE_CONDITION = verboseCondition(actual -> actual.length() < 4,24                                                                              "shorter than 4",25                                                                              s -> format(" but length was %s", s.length(), s));26  @Test27  public void should_succeed_and_display_description_without_actual() {28    assertThat(VERBOSE_CONDITION.matches("foo")).isTrue();29    assertThat(VERBOSE_CONDITION).hasToString("shorter than 4");30  }31  @Test32  public void should_fail_and_display_actual_description_as_per_transformation_function_with_isCondition() {33    // WHEN34    AssertionError assertionError = expectAssertionError(() -> assertThat("foooo").is(VERBOSE_CONDITION));35    // THEN36    then(assertionError).hasMessage(format("%nExpecting actual:%n" +...

VerboseCondition

Using AI Code Generation

1import org.assertj.core.api.Assertions;2import org.assertj.core.api.Condition;3import org.assertj.core.condition.VerboseCondition;4public class VerboseConditionExample {5   public static void main(String[] args) {6      Condition<String> condition = new Condition<String>() {7         public boolean matches(String s) {8            return s.startsWith("A");9         }10      };11      Assertions.assertThat("Apple").is(VerboseCondition.verboseCondition(condition, "Starts with letter 'A'"));12   }13}

VerboseCondition

Using AI Code Generation

1import org.assertj.core.api.Assertions;2import org.assertj.core.api.Condition;3import org.assertj.core.condition.VerboseCondition;4public class VerboseConditionDemo {5   public static void main(String[] args) {6      Condition<String> condition = new Condition<String>() {7         public boolean matches(String s) {8            return s.startsWith("A");9         }10      };11      VerboseCondition<String> verboseCondition = new VerboseCondition<>(condition, "starts with A");12      Assertions.assertThat("Abc").is(verboseCondition);13   }14}

VerboseCondition

Using AI Code Generation

1import org.assertj.core.api.Assertions;2import org.assertj.core.condition.VerboseCondition;3import org.assertj.core.api.Condition;4public class VerboseConditionExample {5    public static void main(String[] args) {6        Condition<String> condition = new Condition<>(s -> s.startsWith("A"), "starting with 'A'");7        VerboseCondition<String> verboseCondition = new VerboseCondition<>(condition);8        Assertions.assertThat("B").is(verboseCondition);9    }10}

VerboseCondition

Using AI Code Generation

1package org.codepedia;2import org.assertj.core.api.Assertions;3import org.assertj.core.api.Condition;4import org.assertj.core.condition.VerboseCondition;5public class AssertJVerboseCondition {6    public static void main(String[] args) {7        Condition<String> condition = new Condition<String>() {8            public boolean matches(String value) {9                return value.equals("foo");10            }11        };

VerboseCondition

Using AI Code Generation

1package org.assertj.core.condition;2import org.assertj.core.api.Condition;3import org.assertj.core.api.TestCondition;4import org.junit.jupiter.api.Test;5import static org.assertj.core.api.Assertions.assertThat;6public class VerboseConditionTest {7    public void testVerboseCondition() {8        final Condition<Object> condition = new TestCondition<>();9        final String description = "description";10        final Condition<Object> verboseCondition = VerboseCondition.verboseCondition(condition, description);11        assertThat(verboseCondition).isNotNull();12    }13}14org.assertj.core.condition.VerboseConditionTest > testVerboseCondition() PASSED

VerboseCondition

Using AI Code Generation

1import org.assertj.core.api.Assertions;2import org.assertj.core.condition.VerboseCondition;3import org.assertj.core.data.Index;4import org.assertj.core.util.Arrays;5public class VerboseConditionExample {6    public static void main(String[] args) {7        String[] countries = {"India", "Australia", "South Africa", "New Zealand", "England", "West Indies", "Pakistan", "Bangladesh", "Sri Lanka", "Zimbabwe"};8        Assertions.assertThat(countries)9                .areAtLeast(3, VerboseCondition.verboseCondition(10                        country -> country.startsWith("A"),11                .areAtMost(2, VerboseCondition.verboseCondition(12                        country -> country.startsWith("Z"),13                .areExactly(1, VerboseCondition.verboseCondition(14                        country -> country.startsWith("S"),15                .are(VerboseCondition.verboseCondition(16                        country -> country.startsWith("I"),17                .areNot(VerboseCondition.verboseCondition(18                        country -> country.startsWith("E"),19                .areAtLeast(2, VerboseCondition.verboseCondition(20                        country -> country.contains("i"),21                .areAtMost(1, VerboseCondition.verboseCondition(22                        country -> country.contains("i"),23                .areExactly(1, VerboseCondition.verboseCondition(24                        country -> country.contains("i"),25                .are(VerboseCondition.verboseCondition(26                        country -> country.contains("i"),27                .areNot(VerboseCondition.verboseCondition(28                        country -> country.contains("i"),29                .areAtLeast(2, VerboseCondition.verboseCondition(30                        country -> country.endsWith("a"),31                .areAtMost(1, VerboseCondition.verboseCondition(32                        country -> country.endsWith("a"),33                .areExactly(1, VerboseCondition.verboseCondition(34                        country -> country.endsWith("a"),35                .are(VerboseCondition.verboseCondition(36                        country -> country.endsWith("a"),37                .areNot(VerboseCondition.verboseCondition

VerboseCondition

Using AI Code Generation

1import org.assertj.core.api.Condition;2import org.assertj.core.condition.VerboseCondition;3public class VerboseConditionExample {4   public static void main(String[] args) {5      Condition<String> condition = new Condition<String>() {6         public boolean matches(String value) {7            return value.length() > 5;8         }9      };10      VerboseCondition<String> verboseCondition = new VerboseCondition<>(condition, "length is greater than 5");11      VerboseCondition<String> verboseCondition1 = new VerboseCondition<>(condition, "length is greater than 5",12            "length is less than 5");13      VerboseCondition<String> verboseCondition2 = new VerboseCondition<>(condition, "length is greater than 5",14            "length is less than 5", "length is 5");15      VerboseCondition<String> verboseCondition3 = new VerboseCondition<>(condition, "length is greater than 5",16            "length is less than 5", "length is 5", "length is 4");17      VerboseCondition<String> verboseCondition4 = new VerboseCondition<>(condition, "length is greater than 5",18            "length is less than 5", "length is 5", "length is 4", "length is 3");19      VerboseCondition<String> verboseCondition5 = new VerboseCondition<>(condition, "length is greater than 5",20            "length is less than 5", "length is 5", "length is 4", "length is 3", "length is 2");21      VerboseCondition<String> verboseCondition6 = new VerboseCondition<>(condition, "length is greater than 5",22            "length is less than 5", "length is 5", "length is 4", "length is 3", "length is 2", "length is 1");23      VerboseCondition<String> verboseCondition7 = new VerboseCondition<>(condition, "length is greater than 5",

VerboseCondition

Using AI Code Generation

1import org.assertj.core.condition.VerboseCondition;2import org.assertj.core.api.Condition;3import org.assertj.core.api.Assertions;4import java.util.ArrayList;5import java.util.List;6public class AssertJVerboseCondition {7    public static void main(String[] args) {8        List<String> list = new ArrayList<String>();9        list.add("Apple");10        list.add("Orange");11        list.add("Mango");12        list.add("Grapes");13        list.add("Banana");14        Condition<List<String>> condition = new VerboseCondition<List<String>>(l -> l.contains("Banana"), "List contains 'Banana'");15        Condition<List<String>> condition2 = new VerboseCondition<List<String>>(l -> l.contains("Pineapple"), "List contains 'Pineapple'");16        Condition<List<String>> condition3 = new VerboseCondition<List<String>>(l -> l.contains("Apple") && l.contains("Grapes"), "List contains 'Apple' and 'Grapes'");17        Condition<List<String>> condition4 = new VerboseCondition<List<String>>(l -> l.contains("Apple") || l.contains("Grapes"), "List contains 'Apple' or 'Grapes'");18        Condition<List<String>> condition5 = new VerboseCondition<List<String>>(l -> l.contains("Apple") && l.contains("Grapes") && l.contains("Mango"), "List contains 'Apple', 'Grapes' and 'Mango'");19        Condition<List<String>> condition6 = new VerboseCondition<List<String>>(l -> l.contains("Apple") && l.contains("Grapes") && l.contains("Mango") && l.contains("Banana"), "List contains 'Apple', 'Grapes', 'Mango' and 'Banana'");

VerboseCondition

Using AI Code Generation

1import org.assertj.core.api.Assertions;2import org.assertj.core.condition.VerboseCondition;3public class VerboseConditionMethod {4   public static void main(String[] args) {5      Assertions.assertThat("Hello").is(VerboseCondition.verboseCondition(s -> s.equals("Hello"), "Hello"));6   }7}

VerboseCondition

Using AI Code Generation

1import org.assertj.core.api.*;2import org.assertj.core.condition.*;3import java.util.*;4{5   public static void main(String[] args)6   {7      String str = "Hello World";8      VerboseCondition<String> condition = new VerboseCondition<String>(s -> s.length() > 5, "length is greater than 5");9      boolean result = condition.matches(str);10      System.out.println("Condition is met: " + result);11   }12}

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