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How to use IterableAssert_singleElement_Test class of org.assertj.core.api.iterable package

Best Assertj code snippet using org.assertj.core.api.iterable.IterableAssert_singleElement_Test

Source:IterableAssert_singleElement_Test.java

...27 * 28 * @author Michael Grafl29 */30@DisplayName("IterableAssert singleElement")31class IterableAssert_singleElement_Test {32  private final Iterable<String> babySimpsons = list("Maggie");33  private final Iterable<String> simpsons = list("Homer", "Marge", "Lisa", "Bart", "Maggie");34  @Test35  void should_fail_if_iterable_is_empty() {36    // GIVEN37    Iterable<String> iterable = emptyList();38    // WHEN39    AssertionError assertionError = expectAssertionError(() -> assertThat(iterable).singleElement());40    // THEN41    then(assertionError).hasMessageContaining("Expected size:<1> but was:<0>");42  }43  @Test44  void should_pass_allowing_object_assertions_if_iterable_contains_exactly_one_element() {45    // WHEN...

IterableAssert_singleElement_Test

Using AI Code Generation

1package org.assertj.core.api.iterable;2import org.assertj.core.api.IterableAssert;3import org.assertj.core.api.IterableAssertBaseTest;4import org.junit.Test;5import static org.mockito.Mockito.verify;6public class IterableAssert_singleElement_Test extends IterableAssertBaseTest {7  protected IterableAssert<Object> invoke_api_method() {8    return assertions.singleElement();9  }10  protected void verify_internal_effects() {11    verify(iterables).assertSingleElement(getInfo(assertions), getActual(assertions));12  }13  public void should_return_this() {14  }15}16package org.assertj.core.api.iterable;17import org.assertj.core.api.AbstractIterableAssert;18import org.assertj.core.api.AbstractIterableAssertBaseTest;19import org.assertj.core.api.IterableAssert;20import org.assertj.core.internal.Iterables;21import org.assertj.core.util.CaseInsensitiveStringComparator;22import org.junit.Before;23import org.junit.Test;24import static org.mockito.Mockito.mock;25import static org.mockito.Mockito.verify;26public class IterableAssertBaseTest extends AbstractIterableAssertBaseTest {27  private Iterables iterablesBefore;28  public void before() {29    iterablesBefore = getIterables(assertions);30  }31  protected IterableAssert<Object> invoke_api_method() {32    return assertions.singleElement();33  }34  protected void verify_internal_effects() {35    verify(iterables).assertSingleElement(getInfo(assertions), getActual(assertions));36  }37  public void should_return_this() {38  }39  protected IterableAssert<Object> assertions() {40    return new IterableAssert<>(newArrayList("Yoda"));41  }42  protected AbstractIterableAssert<?, ? extends Iterable<?>, Object, ObjectAssert<Object>> invoke_api_method_with_null() {43    return assertions().usingComparator(null);44  }45  protected AbstractIterableAssert<?, ? extends Iterable<?>, Object, ObjectAssert<Object>> invoke_api_method_with_null_then_usingElementComparator() {46    return assertions().usingComparator(null).usingElementComparator

IterableAssert_singleElement_Test

Using AI Code Generation

1package org.assertj.core.api.iterable;2import org.assertj.core.api.IterableAssert;3import org.assertj.core.api.IterableAssertBaseTest;4import org.assertj.core.internal.Iterables;5import org.assertj.core.internal.Objects;6import org.junit.jupiter.api.BeforeEach;7import static org.mockito.MockitoAnnotations.initMocks;8import static org.mockito.Mockito.verify;9import static org.mockito.Mockito.verifyNoMoreInteractions;10import static org.mockito.Mockito.when;11import static org.assertj.core.api.Assertions.assertThat;12import static org.assertj.core.test.TestData.someInfo;13import static org.assertj.core.util.Lists.list;14import static org.assertj.core.util.FailureMessages.actualIsNull;15import static org.mockito.Mockito.mock;16import static org.mockito.Mockito.never;17import java.util.List;18public class IterableAssert_singleElement_Test extends IterableAssertBaseTest {19  private Iterables iterablesBefore;20  public void before() {21    initMocks(this);22    iterablesBefore = getIterables(assertions);23  }24  protected IterableAssert<Object> invoke_api_method() {25    return assertions.singleElement();26  }27  protected void verify_internal_effects() {28    verify(iterablesBefore).assertHasSize(getInfo(assertions), getActual(assertions), 1);29    assertThat(getIterables(assertions)).isSameAs(iterablesBefore);30  }31  @SuppressWarnings("unchecked")32  public void should_return_this() {33  }34  @SuppressWarnings("unchecked")35  public void should_return_this_if_condition_is_met() {36  }37  @SuppressWarnings("unchecked")38  public void should_fail_if_condition_is_not_met_enough() {39  }40  @SuppressWarnings("unchecked")41  public void should_fail_if_condition_is_not_met_at_all() {42  }43  @SuppressWarnings("unchecked")44  public void should_fail_if_actual_is_null() {45  }46  @SuppressWarnings("unchecked")47  public void should_fail_if_actual_is_empty() {

IterableAssert_singleElement_Test

Using AI Code Generation

1package org.assertj.core.api.iterable;2import org.assertj.core.api.AbstractIterableAssert;3import org.assertj.core.api.IterableAssertBaseTest;4import org.assertj.core.api.ThrowableAssert.ThrowingCallable;5import org.assertj.core.internal.Iterables;6import org.assertj.core.internal.Objects;7import org.assertj.core.test.Jedi;8import org.assertj.core.util.FailureMessages;9import org.junit.jupiter.api.DisplayName;10import org.junit.jupiter.api.Test;11import org.mockito.Mock;12import static org.assertj.core.api.Assertions.assertThatExceptionOfType;13import static org.assertj.core.api.BDDAssertions.then;14import static org.assertj.core.error.ShouldContainOnly.shouldContainOnly;15import static org.assertj.core.test.ExpectedException.none;16import static org.mockito.Mockito.verify;17import static org.mockito.Mockito.verifyNoInteractions;18import java.util.List;19import static org.assertj.core.util.Arrays.array;20import static org.assertj.core.util.Lists.list;21import static org.assertj.core.util.Sets.newLinkedHashSet;22@DisplayName("IterableAssert singleElement")23class IterableAssert_singleElement_Test extends IterableAssertBaseTest {24  private Iterables iterables;25  private Objects objects;26  protected AbstractIterableAssert<?, ? extends Iterable<?>, Object, ObjectAssert<Object>> invoke_api_method() {27    return assertions.singleElement();28  }29  protected void verify_internal_effects() {30    verify(iterables).assertHasSize(getInfo(assertions), getActual(assertions), 1);31  }32  void should_pass_if_actual_contains_only_one_element() {33    List<Jedi> jedi = list(new Jedi("Yoda", "green"));34    then(jedi).singleElement();35  }36  void should_fail_if_actual_contains_more_than_one_element() {37    List<Jedi> jedi = list(new Jedi("Yoda", "green"), new Jedi("Luke", "green"));38    ThrowingCallable code = () -> then(jedi).singleElement();39    assertThatExceptionOfType(AssertionError.class).isThrownBy(code)40                                                   .withMessage(shouldContainOnly(jedi, newLinkedHashSet(new Jedi("Luke", "green")), newLinkedHashSet(new Jedi("Yoda", "green")),41                                                                                  newLinkedHashSet()).create());42  }43  void should_fail_if_actual_contains_no_element() {

IterableAssert_singleElement_Test

Using AI Code Generation

1package org.assertj.core.api.iterable;2import static org.assertj.core.api.Assertions.assertThat;3import java.util.ArrayList;4import java.util.List;5import org.assertj.core.api.IterableAssert;6import org.assertj.core.api.IterableAssertBaseTest;7import org.junit.jupiter.api.Test;8class IterableAssert_singleElement_Test extends IterableAssertBaseTest {9  protected IterableAssert<Object> invoke_api_method() {10    return assertions.singleElement();11  }12  protected void verify_internal_effects() {13    assertThat(getObjects(assertions)).containsExactly(1);14  }15  void should_fail_if_iterable_has_no_elements() {16    List<Object> list = new ArrayList<>();17    AssertionError assertionError = expectAssertionError(() -> assertThat(list).singleElement());18    assertThat(assertionError).hasMessage("Expecting single element but iterable was empty");19  }20  void should_fail_if_iterable_has_more_than_one_element() {21    List<Object> list = new ArrayList<>();22    list.add(1);23    list.add(2);24    AssertionError assertionError = expectAssertionError(() -> assertThat(list).singleElement());25    assertThat(assertionError).hasMessage("Expecting single element but iterable contained more than one element: <[1, 2]>");26  }27}

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