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How to use internalSingleElement method of org.assertj.core.api.AbstractObjectArrayAssert class

Best Assertj code snippet using org.assertj.core.api.AbstractObjectArrayAssert.internalSingleElement

Source:AbstractObjectArrayAssert.java

...3818   * @see #singleElement(InstanceOfAssertFactory)3819   */3820  @CheckReturnValue3821  public ObjectAssert<ELEMENT> singleElement() {3822    return internalSingleElement();3823  }3824  /**3825   * Verifies that the array under test contains a single element and allows to perform assertions on that element, 3826   * the assertions are strongly typed according to the given {@link AssertFactory} parameter.3827   * <p>3828   * Example: use of {@code String} assertions after {@code singleElement(as(STRING))}3829   * <pre><code class='java'> import static org.assertj.core.api.InstanceOfAssertFactories.STRING;3830   * import static org.assertj.core.api.InstanceOfAssertFactories.INTEGER;3831   * import static org.assertj.core.api.Assertions.as; // syntactic sugar3832   *3833   * String[] babySimpsons = { "Maggie" };3834   *3835   * // assertion succeeds3836   * assertThat(babySimpsons).singleElement(as(STRING))3837   *                         .startsWith("Mag");3838   *3839   * // assertion fails3840   * assertThat(babySimpsons).singleElement(as(STRING))3841   *                         .startsWith("Lis");3842   *3843   * // assertion fails because of wrong factory type3844   * assertThat(babySimpsons).singleElement(as(INTEGER))3845   *                         .isZero();3846   *3847   * // assertion fails because list contains no elements3848   * assertThat(emptyList()).singleElement(as(STRING));3849   *3850   * // assertion fails because list contains more than one element3851   * String[] simpsons = { "Homer", "Marge", "Lisa", "Bart", "Maggie" };3852   * assertThat(simpsons).singleElement(as(STRING));</code></pre>3853   *3854   * @param <ASSERT>      the type of the resulting {@code Assert}3855   * @param assertFactory the factory which verifies the type and creates the new {@code Assert}3856   * @return a new narrowed {@link Assert} instance for assertions chaining on the single element3857   * @throws AssertionError if the actual array does not contain exactly one element.3858   * @throws NullPointerException if the given factory is {@code null}.3859   * @since 3.22.03860   */3861  @CheckReturnValue3862  public <ASSERT extends AbstractAssert<?, ?>> ASSERT singleElement(InstanceOfAssertFactory<?, ASSERT> assertFactory) {3863    return internalSingleElement().asInstanceOf(assertFactory);3864  }3865  private ObjectAssert<ELEMENT> internalSingleElement() {3866    arrays.assertHasSize(info, actual, 1);3867    return toAssert(actual[0], navigationDescription("check single element"));3868  }3869  protected String navigationDescription(String propertyName) {3870    String text = descriptionText();3871    if (Strings.isNullOrEmpty(text)) {3872      text = removeAssert(this.getClass().getSimpleName());3873    }3874    return text + " " + propertyName;3875  }3876  private static String removeAssert(String text) {3877    return text.endsWith(ASSERT) ? text.substring(0, text.length() - ASSERT.length()) : text;3878  }3879  private ObjectAssert<ELEMENT> toAssert(ELEMENT value, String description) {...

Source:AbstractIterableAssert.java

...2784   * @see #singleElement(InstanceOfAssertFactory)2785   */2786  @CheckReturnValue2787  public ELEMENT_ASSERT singleElement() {2788    return internalSingleElement();2789  }2790  /**2791   * Verifies that the {@link Iterable} under test contains a single element and allows to perform assertions on that element.<br>2792   * The assertions are strongly typed according to the given {@link AssertFactory} parameter.2793   * <p>2794   * This is a shorthand for <code>hasSize(1).first(assertFactory)</code>.2795   * <p>2796   * Example: use of {@code String} assertions after {@code singleElement(as(STRING)}2797   * <pre><code class='java'> import static org.assertj.core.api.InstanceOfAssertFactories.STRING;2798   * import static org.assertj.core.api.InstanceOfAssertFactories.INTEGER;2799   * import static org.assertj.core.api.Assertions.as; // syntactic sugar2800   *2801   * List&lt;String&gt; babySimpsons = list("Maggie");2802   *2803   * // assertion succeeds2804   * assertThat(babySimpsons).singleElement(as(STRING))2805   *                         .startsWith("Mag");2806   *2807   * // assertion fails2808   * assertThat(babySimpsons).singleElement(as(STRING))2809   *                         .startsWith("Lis");2810   *2811   * // assertion fails because of wrong factory type2812   * assertThat(babySimpsons).singleElement(as(INTEGER))2813   *                         .isZero();2814   *2815   * // assertion fails because list contains no elements2816   * assertThat(emptyList()).singleElement(as(STRING));2817   *2818   * // assertion fails because list contains more than one element2819   * List&lt;String&gt; simpsons = list("Homer", "Marge", "Lisa", "Bart", "Maggie");2820   * assertThat(simpsons).singleElement(as(STRING));</code></pre>2821   *2822   * @param <ASSERT>      the type of the resulting {@code Assert}2823   * @param assertFactory the factory which verifies the type and creates the new {@code Assert}2824   * @return a new narrowed {@link Assert} instance for assertions chaining on the single element2825   * @throws AssertionError if the actual {@link Iterable} does not contain exactly one element.2826   * @throws NullPointerException if the given factory is {@code null}.2827   * @since 3.17.02828   */2829  @CheckReturnValue2830  public <ASSERT extends AbstractAssert<?, ?>> ASSERT singleElement(InstanceOfAssertFactory<?, ASSERT> assertFactory) {2831    return internalSingleElement().asInstanceOf(assertFactory);2832  }2833  private ELEMENT_ASSERT internalSingleElement() {2834    iterables.assertHasSize(info, actual, 1);2835    return internalFirst();2836  }2837  protected abstract ELEMENT_ASSERT toAssert(ELEMENT value, String description);2838  protected String navigationDescription(String propertyName) {2839    String text = descriptionText();2840    if (Strings.isNullOrEmpty(text)) {2841      text = removeAssert(this.getClass().getSimpleName());2842    }2843    return text + " " + propertyName;2844  }2845  private static String removeAssert(String text) {2846    return text.endsWith(ASSERT) ? text.substring(0, text.length() - ASSERT.length()) : text;2847  }...

internalSingleElement

Using AI Code Generation

1package org.assertj.core.api.objectarray;2import org.assertj.core.api.AbstractObjectArrayAssert;3import org.assertj.core.api.ObjectArrayAssert;4import org.assertj.core.api.ObjectArrayAssertBaseTest;5import org.assertj.core.api.ObjectAssert;6import org.assertj.core.api.ObjectAssertBaseTest;7import org.assertj.core.api.ObjectAssertBaseTest.Person;8import org.assertj.core.api.ObjectAssertBaseTest.PersonAssert;9import org.assertj.core.util.introspection.IntrospectionError;10import org.junit.jupiter.api.Test;11import static org.assertj.core.api.Assertions.assertThat;12import static org.assertj.core.api.Assertions.assertThatIllegalArgumentException;13import static org.assertj.core.api.Assertions.assertThatNullPointerException;14import static org.assertj.core.error.ShouldHaveSingleElement.shouldHaveSingleElement;15import static org.assertj.core.util.AssertionsUtil.expectAssertionError;16import static org.assertj.core.util.FailureMessages.actualIsNull;17import static org.assertj.core.util.Lists.newArrayList;18import static org.mockito.Mockito.verify;19public class ObjectArrayAssert_usingElementComparator_Test extends ObjectArrayAssertBaseTest {20    private final Comparator<Object> comparator = (o1, o2) -> 0;21    protected ObjectArrayAssert<Object> invoke_api_method() {22        return assertions.usingElementComparator(comparator);23    }24    protected void verify_internal_effects() {25        assertThat(getObjects(assertions)).isSameAs(getObjects(assertions));26        assertThat(getComparator(assertions)).isSameAs(comparator);27    }28    public void should_throw_error_if_comparator_is_null() {29        assertThatNullPointerException().isThrownBy(() -> assertions.usingElementComparator(null)).withMessage("The comparator to use should not be null");30    }31    public void should_use_comparator_for_element_comparisons() {32        ObjectAssert<Object> objectAssert = new ObjectAssert<>(new Object());33        assertThat(objectAssert).usingElementComparator(comparator).isSameAs(objectAssert);34        assertThat(objectAssert).usingElementComparator(comparator).isSameAs(objectAssert);35    }36    public void should_use_comparator_for_element_comparisons_with_descriptions() {37        ObjectAssert<Object> objectAssert = new ObjectAssert<>(new Object());38        assertThat(objectAssert).as("description").usingElementComparator(comparator).isSameAs(objectAssert);39        assertThat(objectAssert).as("description").usingElementComparator(comparator).isSameAs(objectAssert);40    }

internalSingleElement

Using AI Code Generation

1package org.assertj.core.api.objectarray;2import org.assertj.core.api.AbstractObjectArrayAssert;3import org.assertj.core.api.ObjectArrayAssert;4import org.assertj.core.api.ObjectArrayAssertBaseTest;5import org.assertj.core.api.ObjectAssert;6import org.assertj.core.test.Person;7import org.junit.jupiter.api.Test;8import static org.assertj.core.api.Assertions.assertThat;9public class ObjectArrayAssert_internalSingleElement_Test extends ObjectArrayAssertBaseTest {10    protected ObjectArrayAssert<Object> invoke_api_method() {11        return assertions.internalSingleElement();12    }13    protected void verify_internal_effects() {14        assertThat(getObjects(assertions)).containsExactly(getActual(assertions)[0]);15    }16    void should_return_ObjectAssert() {17        ObjectAssert<Object> objectAssert = assertions.internalSingleElement();18        assertThat(objectAssert).isNotNull();19        assertThat(objectAssert.value).isEqualTo(getActual(assertions)[0]);20    }21}22package org.assertj.core.api.objectarray;23import org.assertj.core.api.AbstractObjectArrayAssert;24import org.assertj.core.api.ObjectArrayAssert;25import org.assertj.core.api.ObjectArrayAssertBaseTest;26import org.assertj.core.api.ObjectAssert;27import org.assertj.core.test.Person;28import org.junit.jupiter.api.Test;29import static org.assertj.core.api.Assertions.assertThat;30public class ObjectArrayAssert_internalSingleElement_Test extends ObjectArrayAssertBaseTest {31    protected ObjectArrayAssert<Object> invoke_api_method() {32        return assertions.internalSingleElement();33    }34    protected void verify_internal_effects() {35        assertThat(getObjects(assertions)).containsExactly(getActual(assertions)[0]);36    }37    void should_return_ObjectAssert() {38        ObjectAssert<Object> objectAssert = assertions.internalSingleElement();39        assertThat(objectAssert).isNotNull();40        assertThat(objectAssert.value).isEqualTo(getActual(assertions)[0]);41    }42}43package org.assertj.core.api.objectarray;44import org.assertj.core.api.AbstractObjectArrayAssert;45import org.assertj.core.api.ObjectArrayAssert;46import org.assertj.core.api.ObjectArrayAssertBaseTest;47import org.assertj.core.api.ObjectAssert;48import org.assertj.core.test.Person;49import org.junit.jupiter.api.Test;50import static org.assertj.core.api.Assertions.assertThat;51public class ObjectArrayAssert_internalSingleElement_Test extends ObjectArrayAssertBaseTest {52    protected ObjectArrayAssert<Object> invoke_api_method() {

internalSingleElement

Using AI Code Generation

1package org.kodejava.example.assertj;2import org.assertj.core.api.Assertions;3public class InternalSingleElementDemo {4    public static void main(String[] args) {5        String[] colors = {"red", "green", "blue"};6        Assertions.assertThat(colors)7                .as("Checking colors")8                .internalSingleElement()9                .isEqualTo("red");10    }11}12at org.assertj.core.error.ShouldContainExactlyOneElement.shouldContainExactlyOneElement(ShouldContainExactlyOneElement.java:33)13at org.assertj.core.internal.ObjectArrays.assertHasSizeBetween(ObjectArrays.java:148)14at org.assertj.core.internal.ObjectArrays.assertHasSizeBetween(ObjectArrays.java:136)15at org.assertj.core.internal.ObjectArrays.assertHasSizeBetween(ObjectArrays.java:131)16at org.assertj.core.internal.ObjectArrays.assertHasSizeBetween(ObjectArrays.java:119)17at org.assertj.core.internal.ObjectArrays.assertHasSizeBetween(ObjectArrays.java:114)18at org.assertj.core.internal.ObjectArrays.assertHasSizeBetween(ObjectArrays.java:109)19at org.assertj.core.internal.ObjectArrays.assertHasSizeBetween(ObjectArrays.java:104)20at org.assertj.core.api.AbstractObjectArrayAssert.internalSingleElement(AbstractObjectArrayAssert.java:144)21at org.kodejava.example.assertj.InternalSingleElementDemo.main(InternalSingleElementDemo.java:12)

internalSingleElement

Using AI Code Generation

1import org.assertj.core.api.AbstractObjectArrayAssert;2import org.assertj.core.api.ObjectArrayAssert;3import org.assertj.core.api.ObjectAssert;4import org.assertj.core.api.ObjectArrayAssertBaseTest;5import org.assertj.core.internal.ObjectArrays;6import org.assertj.core.test.Jedi;7import org.junit.jupiter.api.Test;8import static org.mockito.Mockito.verify;9public class AssertJCore_1 {10public void test1() {11ObjectArrayAssert<Jedi> assertions = new ObjectArrayAssertBaseTest().getAssert();12assertions = assertions.internalSingleElement();13verify(ObjectArrays.instance()).assertHasSize(assertions.info, assertions.actual, 1);14}15}16import org.assertj.core.api.AbstractObjectArrayAssert;17import org.assertj.core.api.ObjectArrayAssert;18import org.assertj.core.api.ObjectAssert;19import org.assertj.core.api.ObjectArrayAssertBaseTest;20import org.assertj.core.internal.ObjectArrays;21import org.assertj.core.test.Jedi;22import org.junit.jupiter.api.Test;23import static org.mockito.Mockito.verify;24public class AssertJCore_2 {25public void test2() {26ObjectArrayAssert<Jedi> assertions = new ObjectArrayAssertBaseTest().getAssert();27assertions = assertions.internalSingleElement();28verify(ObjectArrays.instance()).assertHasSize(assertions.info, assertions.actual, 1);29}30}31import org.assertj.core.api.AbstractObjectArrayAssert;32import org.assertj.core.api.ObjectArrayAssert;33import org.assertj.core.api.ObjectAssert;34import org.assertj.core.api.ObjectArrayAssertBaseTest;35import org.assertj.core.internal.ObjectArrays;36import org.assertj.core.test.Jedi;37import org.junit.jupiter.api.Test;38import static org.mockito.Mockito.verify;39public class AssertJCore_3 {40public void test3() {41ObjectArrayAssert<Jedi> assertions = new ObjectArrayAssertBaseTest().getAssert();42assertions = assertions.internalSingleElement();43verify(ObjectArrays.instance()).assertHasSize(assertions.info, assertions.actual, 1);44}45}

internalSingleElement

Using AI Code Generation

1import org.assertj.core.api.Assertions;2import org.assertj.core.api.AbstractObjectArrayAssert;3import org.assertj.core.internal.ObjectArrays;4import org.assertj.core.util.VisibleForTesting;5public class 1 {6    public static void main(String[] args) {7        ObjectArrays objectArrays0 = new ObjectArrays();8        AbstractObjectArrayAssert abstractObjectArrayAssert0 = new AbstractObjectArrayAssert(objectArrays0);9        Object[] objectArray0 = new Object[2];10        Object object0 = new Object();11        objectArray0[0] = object0;12        Object object1 = new Object();13        objectArray0[1] = object1;14        abstractObjectArrayAssert0.internalSingleElement(objectArray0);15    }16}17import org.assertj.core.api.Assertions;18import org.assertj.core.api.AbstractObjectArrayAssert;19import org.assertj.core.internal.ObjectArrays;20import org.assertj.core.util.VisibleForTesting;21public class 2 {22    public static void main(String[] args) {23        ObjectArrays objectArrays0 = new ObjectArrays();24        AbstractObjectArrayAssert abstractObjectArrayAssert0 = new AbstractObjectArrayAssert(objectArrays0);25        Object[] objectArray0 = new Object[2];26        Object object0 = new Object();27        objectArray0[0] = object0;28        Object object1 = new Object();29        objectArray0[1] = object1;30        abstractObjectArrayAssert0.internalSingleElement(objectArray0);31    }32}

internalSingleElement

Using AI Code Generation

1import org.assertj.core.api.AbstractObjectArrayAssert;2import org.assertj.core.api.Assertions;3import org.assertj.core.util.Arrays;4import org.junit.Test;5public class AssertJTest {6    public void testInternalSingleElement() {7        AbstractObjectArrayAssert<?, Object> abstractObjectArrayAssert = Assertions.assertThat(Arrays.array("1", "2", "3"));8        abstractObjectArrayAssert.internalSingleElement();9    }10}11import org.assertj.core.api.AbstractObjectArrayAssert;12import org.assertj.core.api.Assertions;13import org.assertj.core.util.Arrays;14import org.junit.Test;15public class AssertJTest {16    public void testInternalSingleElement() {17        AbstractObjectArrayAssert<?, Object> abstractObjectArrayAssert = Assertions.assertThat(Arrays.array("1", "2", "3"));18        abstractObjectArrayAssert.internalSingleElement();19    }20}21import org.assertj.core.api.AbstractObjectArrayAssert;22import org.assertj.core.api.Assertions;23import org.assertj.core.util.Arrays;24import org.junit.Test;25public class AssertJTest {26    public void testInternalSingleElement() {27        AbstractObjectArrayAssert<?, Object> abstractObjectArrayAssert = Assertions.assertThat(Arrays.array("1", "2", "3"));28        abstractObjectArrayAssert.internalSingleElement();29    }30}31import org.assertj.core.api.AbstractObjectArrayAssert;32import org.assertj.core.api.Assertions;33import org.assertj.core.util.Arrays;34import org.junit.Test;35public class AssertJTest {36    public void testInternalSingleElement() {37        AbstractObjectArrayAssert<?, Object> abstractObjectArrayAssert = Assertions.assertThat(Arrays.array("1", "2", "3"));38        abstractObjectArrayAssert.internalSingleElement();39    }40}41import org.assertj.core.api.AbstractObjectArrayAssert;42import org.assertj.core.api.Assertions;43import org.assertj.core.util.Arrays;44import org.junit.Test;45public class AssertJTest {46    public void testInternalSingleElement() {

internalSingleElement

Using AI Code Generation

1package org.assertj.core.api;2import java.util.ArrayList;3import java.util.List;4public class AbstractObjectArrayAssertTest {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    assertThat(list).containsOnlyOnce("a");12  }13}14package org.assertj.core.api;15import java.util.ArrayList;16import java.util.List;17public class AbstractObjectArrayAssertTest {18  public static void main(String[] args) {19    List<String> list = new ArrayList<>();20    list.add("a");21    list.add("b");22    list.add("c");23    list.add("d");24    assertThat(list).containsOnlyOnce("a");25  }26}27package org.assertj.core.api;28import java.util.ArrayList;29import java.util.List;30public class AbstractObjectArrayAssertTest {31  public static void main(String[] args) {32    List<String> list = new ArrayList<>();33    list.add("a");34    list.add("b");35    list.add("c");36    list.add("d");37    assertThat(list).containsOnlyOnce("a");38  }39}40package org.assertj.core.api;41import java.util.ArrayList;42import java.util.List;43public class AbstractObjectArrayAssertTest {44  public static void main(String[] args) {45    List<String> list = new ArrayList<>();46    list.add("a");47    list.add("b");48    list.add("c");49    list.add("d");50    assertThat(list).containsOnlyOnce("a");51  }52}53package org.assertj.core.api;54import java.util.ArrayList;55import java.util.List;56public class AbstractObjectArrayAssertTest {57  public static void main(String[] args) {58    List<String> list = new ArrayList<>();59    list.add("a");60    list.add("b");61    list.add("c");62    list.add("d");

internalSingleElement

Using AI Code Generation

1import org.assertj.core.api.Assertions;2import org.junit.Test;3public class InternalSingleElementTest {4    public void internalSingleElementTest() {5        Object[] array = {1, 2, 3};6        Assertions.assertThat(array).internalSingleElement();7    }8}9org.assertj.core.api.AbstractObjectArrayAssert#internalSingleElement()10The following is the declaration for internalSingleElement() method:11public SELF internalSingleElement()12import org.assertj.core.api.Assertions;13import org.junit.Test;14public class InternalSingleElementTest {15    public void internalSingleElementTest() {16        Object[] array = {1};17        Assertions.assertThat(array).internalSingleElement();18    }19}20How to use internalSingleElement() method in Java?21How to use internalSingleElement() method in JUnit?22You can use the internalSingleElement() method in JUnit to test if the array contains a single element or not. If the array contains a single element, it will return the current assertion object. If the array does not contain a single element

internalSingleElement

Using AI Code Generation

1public class AssertjTest {2public static void main(String args[]) {3String[] stringArray = new String[] {"one", "two", "three"};4assertThat(stringArray).usingElementComparator(CaseInsensitiveStringComparator.instance)5.contains("ONE");6}7}8public class AssertjTest {9public static void main(String args[]) {10List<String> stringList = new ArrayList<>();11stringList.add("one");12stringList.add("two");13stringList.add("three");14assertThat(stringList).usingComparator(CaseInsensitiveStringComparator.instance)15.contains("ONE");16}17}18public class AssertjTest {19public static void main(String args[]) {20assertThat("one").usingComparator(CaseInsensitiveStringComparator.instance)21.isEqualTo("ONE");22}23}24public class AssertjTest {25public static void main(String args[]) {26assertThat(new Person("John", "Doe")).usingComparator(CaseInsensitiveStringComparator.instance)27.isEqualTo(new Person("JOHN", "DOE"));28}29}30public class AssertjTest {31public static void main(String args[]) {32assertThat(1).usingComparator(new Comparator<Integer>() {33public int compare(Integer o1, Integer o2) {34return 0;35}36})37.isEqualTo(1);38}39}40public class AssertjTest {41public static void main(String args[]) {42assertThat(new Person("John", "Doe")).usingComparator(new Comparator<Person>() {43public int compare(Person o1, Person o2) {44return 0;45}46})47.isEqualTo(new Person("JOHN", "DOE"));48}49}50public class AssertjTest {51public static void main(String args[]) {52assertThat(new Person("John", "Doe")).usingComparator(CaseInsensitiveStringComparator.instance)53.isEqualTo(new Person

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