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

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

Source:IterableAssert_singleElement_Test.java

...14import static java.util.Collections.emptyList;15import static org.assertj.core.api.Assertions.assertThat;16import static org.assertj.core.api.BDDAssertions.then;17import static org.assertj.core.util.AssertionsUtil.expectAssertionError;18import static org.assertj.core.util.Lists.list;19import org.assertj.core.api.AssertFactory;20import org.assertj.core.api.IterableAssert;21import org.assertj.core.api.ObjectAssert;22import org.assertj.core.api.StringAssert;23import org.junit.jupiter.api.DisplayName;24import org.junit.jupiter.api.Test;25/**26 * Tests for <code>{@link IterableAssert#singleElement()}</code>.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    // WHEN46    ObjectAssert<String> result = assertThat(babySimpsons).singleElement();47    // THEN...

list

Using AI Code Generation

1public void test() {2    List<String> list = Arrays.asList("foo", "bar");3    assertThat(list).singleElement();4}5public void test() {6    List<String> list = Arrays.asList("foo", "bar");7    assertThat(list).singleElement();8}9public void test() {10    List<String> list = Arrays.asList("foo", "bar");11    assertThat(list).singleElement();12}13public void test() {14    List<String> list = Arrays.asList("foo", "bar");15    assertThat(list).singleElement();16}17public void test() {18    List<String> list = Arrays.asList("foo", "bar");19    assertThat(list).singleElement();20}21public void test() {22    List<String> list = Arrays.asList("foo", "bar");23    assertThat(list).singleElement();24}25public void test() {26    List<String> list = Arrays.asList("foo", "bar");27    assertThat(list).singleElement();28}29public void test() {30    List<String> list = Arrays.asList("foo", "bar");31    assertThat(list).singleElement();32}33public void test() {34    List<String> list = Arrays.asList("foo", "bar");35    assertThat(list).singleElement();36}37public void test() {38    List<String> list = Arrays.asList("foo", "bar");39    assertThat(list).singleElement();40}

list

Using AI Code Generation

1import static org.assertj.core.api.Assertions.assertThat;2import java.util.Arrays;3import java.util.List;4import org.junit.Test;5public class ListTest {6public void testSingleElement() {7List<Integer> list = Arrays.asList(1, 2, 3, 4, 5);8assertThat(list).singleElement();9}10}11at org.junit.Assert.assertEquals(Assert.java:115)12at org.junit.Assert.assertEquals(Assert.java:144)13at org.assertj.core.api.iterable.IterableAssert_singleElement_Test.singleElement_should_fail_if_actual_contains_more_than_one_element(IterableAssert_singleElement_Test.java:49)14public void singleElement_should_fail_if_actual_contains_more_than_one_element() {15  List<Integer> list = Arrays.asList(1, 2, 3, 4, 5);16  try {17    assertThat(list).singleElement();18  } catch (AssertionError e) {19    verify(failures).failure(info, shouldContainOnly(list, list.size(), 1));20    return;21  }22  failBecauseExpectedAssertionErrorWasNotThrown();23}24private static AssertionError failure(String message) {25  return new AssertionError(message);26}27private static String shouldContainOnly(List<?> actual, int actualSize, int expectedSize) {28  return String.format("%nExpecting:%n <%s>%nto contain a single element but it contained:%n <%s>%nExpected :%n <%s>%nActual   :%n <%s>%n<Click to see difference>",29                       actual, actual, expectedSize, actualSize);30}31public void singleElement_should_fail_if_actual_is_empty() {32  List<Integer> list = new ArrayList<Integer>();33  try {34    assertThat(list).singleElement();35  } catch (AssertionError e) {36    verify(failures).failure(info, shouldBeSingleton(list));37    return;38  }39  failBecauseExpectedAssertionErrorWasNotThrown();40}41private static String shouldBeSingleton(List<?> actual) {42  return String.format("%nExpecting:%n <%s>%nto contain a single element but it was empty", actual);43}

list

Using AI Code Generation

1import java.io.File;2import java.io.FileNotFoundException;3import java.io.PrintWriter;4import java.lang.reflect.Method;5import java.util.Arrays;6import java.util.List;7import java.util.stream.Collectors;8import org.assertj.core.api.IterableAssert;9import org.assertj.core.api.iterable.IterableAssert_singleElement_Test;10public class IterableAssert_singleElement_Test_Method_Generator {11	public static void main(String[] args) throws FileNotFoundException {12		PrintWriter pw = new PrintWriter(new File("IterableAssert_singleElement_Test.java"));13		StringBuilder sb = new StringBuilder();14		sb.append("package org.assertj.core.api.iterable;15");16		sb.append("import org.assertj.core.api.IterableAssert;17");18		sb.append("import org.assertj.core.api.iterable.IterableAssertBaseTest;19");20		sb.append("import org.junit.jupiter.api.Test;21");22		sb.append("public class IterableAssert_singleElement_Test extends IterableAssertBaseTest {23");24		sb.append("25");26		sb.append(" @Test27");28		sb.append(" public void test() {29");30");31		sb.append(" Iterable<String> iterable = Arrays.asList(\"one\", \"two\", \"three\");32");33");34		sb.append(" IterableAssert<String> result = assertions.singleElement();35");36");37		sb.append(" verify_that_singleElement_is_called();38");39		sb.append(" }40");41		sb.append("42");43		sb.append(" @Test44");45		sb.append(" public void test2() {46");47");48		sb.append(" Iterable<String> iterable = Arrays.asList(\"one\", \"two\", \"three\");49");50");51		sb.append(" IterableAssert<String> result = assertions.singleElement();52");53");54		sb.append(" verify_that_singleElement_is_called();55");56		sb.append(" }57");58		sb.append("59");60		sb.append(" @Test61");62		sb.append(" public void test3() {63");64");

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