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How to use contains method of org.assertj.core.api.AbstractOptionalAssert class

Best Assertj code snippet using org.assertj.core.api.AbstractOptionalAssert.contains

Source:AbstractOptionalAssert.java

...103  public SELF isNotPresent() {104    return isEmpty();105  }106  /**107   * Verifies that the actual {@link java.util.Optional} contains the given value (alias of {@link #hasValue(Object)}).108   * <p>109   * Assertion will pass :110   * <pre><code class='java'> assertThat(Optional.of("something")).contains("something");111   * assertThat(Optional.of(10)).contains(10);</code></pre>112   *113   * Assertion will fail :114   * <pre><code class='java'> assertThat(Optional.of("something")).contains("something else");115   * assertThat(Optional.of(20)).contains(10);</code></pre>116   *117   * @param expectedValue the expected value inside the {@link java.util.Optional}.118   * @return this assertion object.119   */120  public SELF contains(VALUE expectedValue) {121    isNotNull();122    checkNotNull(expectedValue);123    if (!actual.isPresent()) throwAssertionError(shouldContain(expectedValue));124    if (!optionalValueComparisonStrategy.areEqual(actual.get(), expectedValue))125      throwAssertionError(shouldContain(actual, expectedValue));126    return myself;127  }128  /**129   * Verifies that the actual {@link java.util.Optional} contains a value and gives this value to the given130   * {@link java.util.function.Consumer} for further assertions. Should be used as a way of deeper asserting on the131   * containing object, as further requirement(s) for the value.132   * <p>133   * Assertions will pass :134   * <pre><code class='java'> // one requirement 135   * assertThat(Optional.of(10)).hasValueSatisfying(i -&gt; { assertThat(i).isGreaterThan(9); });136   *137   * // multiple requirements138   * assertThat(Optional.of(someString)).hasValueSatisfying(s -&gt; {139   *   assertThat(s).isEqualTo("something");140   *   assertThat(s).startsWith("some");141   *   assertThat(s).endsWith("thing");142   * }); </code></pre>143   *144   * Assertions will fail :145   * <pre><code class='java'> assertThat(Optional.of("something")).hasValueSatisfying(s -&gt; {146   *     assertThat(s).isEqualTo("something else");147   *   });148   *149   * // fail because optional is empty, there is no value to perform assertion on  150   * assertThat(Optional.empty()).hasValueSatisfying(o -&gt; {});</code></pre>151   *152   * @param requirement to further assert on the object contained inside the {@link java.util.Optional}.153   * @return this assertion object.154   */155  public SELF hasValueSatisfying(Consumer<VALUE> requirement) {156    assertValueIsPresent();157    requirement.accept(actual.get());158    return myself;159  }160  /**161   * Verifies that the actual {@link Optional} contains a value which satisfies the given {@link Condition}.162   * <p>163   * Examples:164   * <pre><code class='java'> Condition&lt;TolkienCharacter&gt; isAnElf = new Condition&lt;&gt;(character -&gt; character.getRace() == ELF, "an elf"); 165   * 166   * TolkienCharacter legolas = new TolkienCharacter("Legolas", 1000, ELF);167   * TolkienCharacter frodo = new TolkienCharacter("Frodo", 33, HOBBIT);168   * 169   * // assertion succeeds170   * assertThat(Optional.of(legolas)).hasValueSatisfying(isAnElf);171   *                                     172   * // assertion fails173   * assertThat(Optional.of(frodo)).hasValueSatisfying(isAnElf);</code></pre>174   *175   * @param condition the given condition.176   * @return this assertion object.177   * @throws AssertionError       if the actual {@link Optional} is null or empty.178   * @throws NullPointerException if the given condition is {@code null}.179   * @throws AssertionError       if the actual value does not satisfy the given condition.180   * @since 3.6.0181   */182  public SELF hasValueSatisfying(Condition<? super VALUE> condition) {183    assertValueIsPresent();184    conditions.assertIs(info, actual.get(), condition);185    return myself;186  }187  /**188   * Verifies that the actual {@link java.util.Optional} contains the given value (alias of {@link #contains(Object)}).189   * <p>190   * Assertion will pass :191   * <pre><code class='java'> assertThat(Optional.of("something")).hasValue("something");192   * assertThat(Optional.of(10)).contains(10);</code></pre>193   *194   * Assertion will fail :195   * <pre><code class='java'> assertThat(Optional.of("something")).hasValue("something else");196   * assertThat(Optional.of(20)).contains(10);</code></pre>197   *198   * @param expectedValue the expected value inside the {@link java.util.Optional}.199   * @return this assertion object.200   */201  public SELF hasValue(VALUE expectedValue) {202    return contains(expectedValue);203  }204  /**205   * Verifies that the actual {@link Optional} contains a value that is an instance of the argument.206   * <p>207   * Assertions will pass:208   *209   * <pre><code class='java'> assertThat(Optional.of("something")).containsInstanceOf(String.class)210   *                                     .containsInstanceOf(Object.class);211   *212   * assertThat(Optional.of(10)).containsInstanceOf(Integer.class);</code></pre>213   *214   * Assertion will fail:215   *216   * <pre><code class='java'> assertThat(Optional.of("something")).containsInstanceOf(Integer.class);</code></pre>217   *218   * @param clazz the expected class of the value inside the {@link Optional}.219   * @return this assertion object.220   */221  public SELF containsInstanceOf(Class<?> clazz) {222    assertValueIsPresent();223    if (!clazz.isInstance(actual.get())) throwAssertionError(shouldContainInstanceOf(actual, clazz));224    return myself;225  }226  /**227   * Use field/property by field/property comparison (including inherited fields/properties) instead of relying on228   * actual type A <code>equals</code> method to compare the {@link Optional} value's object for incoming assertion229   * checks. Private fields are included but this can be disabled using230   * {@link Assertions#setAllowExtractingPrivateFields(boolean)}.231   * <p>232   * This can be handy if <code>equals</code> method of the {@link Optional} value's object to compare does not suit233   * you.234   * </p>235   * Note that the comparison is <b>not</b> recursive, if one of the fields/properties is an Object, it will be236   * compared to the other field/property using its <code>equals</code> method.237   * <p>238   * Example:239   *240   * <pre><code class='java'> TolkienCharacter frodo = new TolkienCharacter("Frodo", 33, HOBBIT);241   * TolkienCharacter frodoClone = new TolkienCharacter("Frodo", 33, HOBBIT);242   *243   * // Fail if equals has not been overridden in TolkienCharacter as equals default implementation only compares references244   * assertThat(Optional.of(frodo)).contains(frodoClone);245   *246   * // frodo and frodoClone are equals when doing a field by field comparison.247   * assertThat(Optional.of(frodo)).usingFieldByFieldValueComparator().contains(frodoClone);</code></pre>248   *249   * @return {@code this} assertion object.250   */251  @CheckReturnValue252  public SELF usingFieldByFieldValueComparator() {253    return usingValueComparator(new FieldByFieldComparator());254  }255  /**256   * Use given custom comparator instead of relying on actual type A <code>equals</code> method to compare the257   * {@link Optional} value's object for incoming assertion checks.258   * <p>259   * Custom comparator is bound to assertion instance, meaning that if a new assertion is created, it will use default260   * comparison strategy.261   * <p>262   * Examples :263   *264   * <pre><code class='java'> TolkienCharacter frodo = new TolkienCharacter("Frodo", 33, HOBBIT);265   * TolkienCharacter frodoClone = new TolkienCharacter("Frodo", 33, HOBBIT);266   *267   * // Fail if equals has not been overridden in TolkienCharacter as equals default implementation only compares references268   * assertThat(Optional.of(frodo)).contains(frodoClone);269   *270   * // frodo and frodoClone are equals when doing a field by field comparison.271   * assertThat(Optional.of(frodo)).usingValueComparator(new FieldByFieldComparator()).contains(frodoClone);</code></pre>272   *273   * @param customComparator the comparator to use for incoming assertion checks.274   * @throws NullPointerException if the given comparator is {@code null}.275   * @return {@code this} assertion object.276   */277  @CheckReturnValue278  public SELF usingValueComparator(Comparator<? super VALUE> customComparator) {279    optionalValueComparisonStrategy = new ComparatorBasedComparisonStrategy(customComparator);280    return myself;281  }282  /**283   * Revert to standard comparison for incoming assertion {@link Optional} value checks.284   * <p>285   * This method should be used to disable a custom comparison strategy set by calling286   * {@link #usingValueComparator(Comparator)}.287   *288   * @return {@code this} assertion object.289   */290  @CheckReturnValue291  public SELF usingDefaultValueComparator() {292    // fall back to default strategy to compare actual with other objects.293    optionalValueComparisonStrategy = StandardComparisonStrategy.instance();294    return myself;295  }296  /**297   * Verifies that the actual {@link java.util.Optional} contains the instance given as an argument (i.e. it must be the298   * same instance).299   * <p>300   * Assertion will pass :301   *302   * <pre><code class='java'> String someString = "something";303   * assertThat(Optional.of(someString)).containsSame(someString);304   *305   * // Java will create the same 'Integer' instance when boxing small ints306   * assertThat(Optional.of(10)).containsSame(10);</code></pre>307   *308   * Assertion will fail :309   *310   * <pre><code class='java'> // not even equal:311   * assertThat(Optional.of("something")).containsSame("something else");312   * assertThat(Optional.of(20)).containsSame(10);313   *314   * // equal but not the same: 315   * assertThat(Optional.of(new String("something"))).containsSame(new String("something"));316   * assertThat(Optional.of(new Integer(10))).containsSame(new Integer(10));</code></pre>317   *318   * @param expectedValue the expected value inside the {@link java.util.Optional}.319   * @return this assertion object.320   */321  public SELF containsSame(VALUE expectedValue) {322    isNotNull();323    checkNotNull(expectedValue);324    if (!actual.isPresent()) throwAssertionError(shouldContain(expectedValue));325    if (actual.get() != expectedValue) throwAssertionError(shouldContainSame(actual, expectedValue));326    return myself;327  }328  /**329   * Call {@link Optional#flatMap(Function) flatMap} on the {@code Optional} under test, assertions chained afterwards are performed on the {@code Optional} resulting from the flatMap call.330   * <p>331   * Examples:332   * <pre><code class='java'> Function&lt;String, Optional&lt;String&gt;&gt; UPPER_CASE_OPTIONAL_STRING = 333   *       s -&gt; s == null ? Optional.empty() : Optional.of(s.toUpperCase());334   * 335   * // assertions succeed336   * assertThat(Optional.of("something")).contains("something")337   *                                     .flatMap(UPPER_CASE_OPTIONAL_STRING)338   *                                     .contains("SOMETHING");339   *                                     340   * assertThat(Optional.&lt;String&gt;empty()).flatMap(UPPER_CASE_OPTIONAL_STRING)341   *                                     .isEmpty();342   *                                     343   * assertThat(Optional.&lt;String&gt;ofNullable(null)).flatMap(UPPER_CASE_OPTIONAL_STRING)344   *                                              .isEmpty();345   *                                     346   * // assertion fails347   * assertThat(Optional.of("something")).flatMap(UPPER_CASE_OPTIONAL_STRING)348   *                                     .contains("something");</code></pre>349   *350   * @param <U> the type wrapped in the {@link Optional} after the {@link Optional#flatMap(Function) flatMap} operation.351   * @param mapper the {@link Function} to use in the {@link Optional#flatMap(Function) flatMap} operation.352   * @return a new {@link AbstractOptionalAssert} for assertions chaining on the flatMap of the Optional.353   * @throws AssertionError if the actual {@link Optional} is null.354   * @since 3.6.0355   */356  @CheckReturnValue357  public <U> AbstractOptionalAssert<?, U> flatMap(Function<? super VALUE, Optional<U>> mapper) {358    isNotNull();359    return assertThat(actual.flatMap(mapper));360  }361  /**362   * Call {@link Optional#map(Function) map} on the {@code Optional} under test, assertions chained afterwards are performed on the {@code Optional} resulting from the map call.363   * <p>364   * Examples:365   * <pre><code class='java'> // assertions succeed 366   * assertThat(Optional.&lt;String&gt;empty()).map(String::length)367   *                                     .isEmpty();368   * 369   * assertThat(Optional.of("42")).contains("42")370   *                              .map(String::length)371   *                              .contains(2);372   *                              373   * // assertion fails374   * assertThat(Optional.of("42")).map(String::length)375   *                              .contains(3);</code></pre>376   *377   * @param <U> the type wrapped in the {@link Optional} after the {@link Optional#map(Function) map} operation.378   * @param mapper the {@link Function} to use in the {@link Optional#map(Function) map} operation.379   * @return a new {@link AbstractOptionalAssert} for assertions chaining on the map of the Optional.380   * @throws AssertionError if the actual {@link Optional} is null.381   * @since 3.6.0382   */383  @CheckReturnValue384  public <U> AbstractOptionalAssert<?, U> map(Function<? super VALUE, ? extends U> mapper) {385    isNotNull();386    return assertThat(actual.map(mapper));387  }388  /**389   * Verifies that the actual {@link Optional} is not {@code null} and not empty and returns an Object assertion ...

Source:AssertJOptionalRules.java

...79    AbstractAssert<?, ?> before(AbstractOptionalAssert<?, T> optionalAssert, T value) {80      return Refaster.anyOf(81          optionalAssert.get().isEqualTo(value),82          optionalAssert.isEqualTo(Optional.of(value)),83          optionalAssert.contains(value),84          optionalAssert.isPresent().hasValue(value));85    }86    @AfterTemplate87    AbstractOptionalAssert<?, T> after(AbstractOptionalAssert<?, T> optionalAssert, T value) {88      return optionalAssert.hasValue(value);89    }90  }91  static final class AbstractOptionalAssertContainsSame<T> {92    @BeforeTemplate93    AbstractAssert<?, ?> before(AbstractOptionalAssert<?, T> optionalAssert, T value) {94      return Refaster.anyOf(95          optionalAssert.get().isSameAs(value), optionalAssert.isPresent().isSameAs(value));96    }97    @AfterTemplate98    AbstractOptionalAssert<?, T> after(AbstractOptionalAssert<?, T> optionalAssert, T value) {99      return optionalAssert.containsSame(value);100    }101  }102  static final class AssertThatOptionalHasValueMatching<T> {103    @BeforeTemplate104    AbstractOptionalAssert<?, T> before(Optional<T> optional, Predicate<? super T> predicate) {105      return assertThat(optional.filter(predicate)).isPresent();106    }107    @AfterTemplate108    @UseImportPolicy(STATIC_IMPORT_ALWAYS)109    AbstractObjectAssert<?, T> after(Optional<T> optional, Predicate<? super T> predicate) {110      return assertThat(optional).get().matches(predicate);111    }112  }113}...

contains

Using AI Code Generation

1import java.util.Optional;2import org.assertj.core.api.AbstractOptionalAssert;3import org.assertj.core.api.Assertions;4public class 1 {5    public static void main(String[] args) {6        AbstractOptionalAssert<?, ?> optionalAssert = Assertions.assertThat(Optional.of("test"));7        optionalAssert.contains("test");8    }9}10import java.util.Optional;11import org.assertj.core.api.AbstractOptionalAssert;12import org.assertj.core.api.Assertions;13public class 1 {14    public static void main(String[] args) {15        AbstractOptionalAssert<?, ?> optionalAssert = Assertions.assertThat(Optional.of("test"));16        optionalAssert.contains("test");17    }18}

contains

Using AI Code Generation

1import java.util.Optional;2import org.assertj.core.api.Assertions;3public class 1 {4    public static void main(String[] args) {5        Optional<String> optional = Optional.of("foo");6        Assertions.assertThat(optional).contains("foo");7    }8}9import java.util.Optional;10import org.assertj.core.api.Assertions;11public class 2 {12    public static void main(String[] args) {13        Optional<String> optional = Optional.of("foo");14        Assertions.assertThat(optional).contains("foo");15    }16}17import java.util.Optional;18import org.assertj.core.api.Assertions;19public class 3 {20    public static void main(String[] args) {21        Optional<String> optional = Optional.of("foo");22        Assertions.assertThat(optional).contains("foo");23    }24}25import java.util.Optional;26import org.assertj.core.api.Assertions;27public class 4 {28    public static void main(String[] args) {29        Optional<String> optional = Optional.of("foo");30        Assertions.assertThat(optional).contains("foo");31    }32}33import java.util.Optional;34import org.assertj.core.api.Assertions;35public class 5 {36    public static void main(String[] args) {37        Optional<String> optional = Optional.of("foo");38        Assertions.assertThat(optional).contains("foo");39    }40}41import java.util.Optional;42import org.assertj.core.api.Assertions;43public class 6 {44    public static void main(String[] args) {45        Optional<String> optional = Optional.of("foo");46        Assertions.assertThat(optional).contains("foo");47    }48}49import java.util.Optional;50import org.assertj.core.api.Assertions;51public class 7 {52    public static void main(String[] args) {53        Optional<String> optional = Optional.of("foo");54        Assertions.assertThat(optional).contains("foo");55    }56}

contains

Using AI Code Generation

1import org.assertj.core.api.AbstractOptionalAssert;2import org.assertj.core.api.Assertions;3import org.junit.Test;4import java.util.Optional;5public class AssertjOptionalAssertTest {6    public void testOptionalAssert() {7        Optional<String> optional = Optional.of("test");8        AbstractOptionalAssert<?, String> optionalAssert = Assertions.assertThat(optional);9        optionalAssert.contains("test");10    }11}12import org.assertj.core.api.Assertions;13import org.junit.Test;14import java.util.Optional;15public class AssertjOptionalAssertTest {16    public void testOptionalAssert() {17        Optional<String> optional = Optional.of("test");18        Assertions.assertThat(optional).contains("test");19    }20}21import org.assertj.core.api.Assertions;22import org.junit.Test;23import java.util.Optional;24public class AssertjOptionalAssertTest {25    public void testOptionalAssert() {26        Optional<String> optional = Optional.of("test");27        Assertions.assertThat(optional).contains("test");28    }29}30import org.assertj.core.api.Assertions;31import org.junit.Test;32import java.util.Optional;33public class AssertjOptionalAssertTest {34    public void testOptionalAssert() {35        Optional<String> optional = Optional.of("test");36        Assertions.assertThat(optional).contains("test");37    }38}39import org.assertj.core.api.Assertions;40import org.junit.Test;41import java.util.Optional;42public class AssertjOptionalAssertTest {43    public void testOptionalAssert() {44        Optional<String> optional = Optional.of("test");45        Assertions.assertThat(optional).contains("test");46    }47}48import org.assertj.core.api.Assertions;49import org.junit.Test;50import java.util.Optional;51public class AssertjOptionalAssertTest {52    public void testOptionalAssert() {53        Optional<String> optional = Optional.of("test");54        Assertions.assertThat(optional).contains("test");

contains

Using AI Code Generation

1public class Example {2    public static void main(String[] args) {3        Optional<String> opt = Optional.of("Hello World");4        assertThat(opt).contains("Hello World");5    }6}7public class Example {8    public static void main(String[] args) {9        Optional<String> opt = Optional.of("Hello World");10        assertThat(opt).contains("Hello World");11    }12}

contains

Using AI Code Generation

1import org.assertj.core.api.AbstractOptionalAssert;2import org.assertj.core.api.Assertions;3import java.util.Optional;4public class AssertJExample {5    public static void main(String[] args) {6        Optional<String> optional = Optional.of("Hello");7        AbstractOptionalAssert<?, ? extends Optional<?>> assertion = Assertions.assertThat(optional);8        assertion.contains("Hello");9    }10}11import org.assertj.core.api.AbstractOptionalAssert;12import org.assertj.core.api.Assertions;13import java.util.Optional;14public class AssertJExample {15    public static void main(String[] args) {16        Optional<String> optional = Optional.of("Hello");17        AbstractOptionalAssert<?, ? extends Optional<?>> assertion = Assertions.assertThat(optional);18        assertion.contains("Hello");19    }20}21import org.assertj.core.api.AbstractOptionalAssert;22import org.assertj.core.api.Assertions;23import java.util.Optional;24public class AssertJExample {25    public static void main(String[] args) {26        Optional<String> optional = Optional.of("Hello");27        AbstractOptionalAssert<?, ? extends Optional<?>> assertion = Assertions.assertThat(optional);28        assertion.contains("Hello");29    }30}31import org.assertj.core.api.AbstractOptionalAssert;32import org.assertj.core.api.Assertions;33import java.util.Optional;34public class AssertJExample {35    public static void main(String[] args) {36        Optional<String> optional = Optional.of("Hello");37        AbstractOptionalAssert<?, ? extends Optional<?>> assertion = Assertions.assertThat(optional);38        assertion.contains("Hello");39    }40}41import org.assertj.core.api.AbstractOptionalAssert;42import org.assertj.core.api.Assertions;43import java.util.Optional;44public class AssertJExample {45    public static void main(String[] args) {46        Optional<String> optional = Optional.of("Hello");47        AbstractOptionalAssert<?, ? extends Optional<?>> assertion = Assertions.assertThat(optional);48        assertion.contains("Hello");49    }50}51import org.assertj.core.api.AbstractOptionalAssert;52import org.assertj.core.api.Assertions;53import java.util.Optional;54public class AssertJExample {55    public static void main(String[] args) {56        Optional<String> optional = Optional.of("Hello");57        AbstractOptionalAssert<?, ? extends Optional<?>> assertion = Assertions.assertThat(optional);58        assertion.contains("Hello");59    }60}61import org.assertj.core.api.AbstractOptionalAssert;62import org.assertj.core.api.Assertions;63import java

contains

Using AI Code Generation

1package org.example;2import static org.assertj.core.api.Assertions.assertThat;3import java.util.Optional;4public class App {5    public static void main(String[] args) {6        Optional<String> optional = Optional.of("abc");7        assertThat(optional).contains("abc");8    }9}

contains

Using AI Code Generation

1import java.util.Optional;2import org.assertj.core.api.Assertions;3public class OptionalAssertContains {4public static void main(String[] args) {5Optional<String> opt = Optional.of("Hello");6Assertions.assertThat(opt).contains("Hello");7}8}9<"Optional.empty"> at org.junit.Assert.assertEquals(Assert.java:115) at org.junit.Assert.assertEquals(Assert.java:144) at org.assertj.core.api.AbstractOptionalAssert.contains(AbstractOptionalAssert.java:137) at OptionalAssertContains.main(OptionalAssertContains.java:14)10import java.util.Optional;11import org.assertj.core.api.Assertions;12public class OptionalAssertContains {13public static void main(String[] args) {14Optional<String> opt = Optional.of("Hello");15Assertions.assertThat(opt).contains("Hello");16}17}18<"Optional.empty"> at org.junit.Assert.assertEquals(Assert.java:115) at org.junit.Assert.assertEquals(Assert.java:144) at org.assertj.core.api.AbstractOptionalAssert.contains(AbstractOptionalAssert.java:137) at OptionalAssertContains.main(OptionalAssertContains.java:14)19import java.util.Optional;20import org.assertj.core.api.Assertions;21public class OptionalAssertContains {22public static void main(String[] args) {23Optional<String> opt = Optional.of("Hello");24Assertions.assertThat(opt).contains("Hello");25}26}27<"Optional.empty"> at org.junit.Assert.assertEquals(Assert.java:115) at org.junit.Assert.assertEquals(Assert.java:144) at org.assertj.core.api.AbstractOptionalAssert.contains(AbstractOptionalAssert.java:137) at OptionalAssertContains

contains

Using AI Code Generation

1import static org.assertj.core.api.Assertions.assertThat;2import java.util.Optional;3public class AssertjOptional {4   public static void main(String[] args) {5      Optional<String> opt = Optional.of("Hello World");6      assertThat(opt).contains("Hello World");7   }8}9import static org.assertj.core.api.Assertions.assertThat;10import java.util.Optional;11public class AssertjOptional {12   public static void main(String[] args) {13      Optional<String> opt = Optional.of("Hello World");14      assertThat(opt).contains("Hello World");15   }16}

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