Join the 1-day Testing & QA Summit featuring 15+ Expert Speakers.Register for FREE! Join TestMu Conference

How to use assertContainsOnlyOnce method of org.assertj.core.internal.Iterables class

Best Assertj code snippet using org.assertj.core.internal.Iterables.assertContainsOnlyOnce

Source:Iterables_assertContainsOnlyOnce_Test.java

...26import org.junit.jupiter.api.Test;27import org.mockito.Mockito;28/**29 * Tests for30 * <code>{@link Iterables#assertContainsOnlyOnce(org.assertj.core.api.AssertionInfo, Iterable, Object[])}</code>.31 *32 * @author William Delanoue33 */34public class Iterables_assertContainsOnlyOnce_Test extends IterablesBaseTest {35    @Test36    public void should_pass_if_actual_contains_given_values_only_once() {37        iterables.assertContainsOnlyOnce(TestData.someInfo(), actual, Arrays.array("Luke", "Yoda", "Leia"));38    }39    @Test40    public void should_pass_if_actual_contains_given_values_only_once_even_if_actual_type_is_not_comparable() {41        // Rectangle class does not implement Comparable42        Rectangle r1 = new Rectangle(1, 1);43        Rectangle r2 = new Rectangle(2, 2);44        iterables.assertContainsOnlyOnce(TestData.someInfo(), Lists.newArrayList(r1, r2, r2), Arrays.array(r1));45    }46    @Test47    public void should_pass_if_actual_contains_given_values_only_once_with_null_element() {48        actual.add(null);49        iterables.assertContainsOnlyOnce(TestData.someInfo(), actual, Arrays.array("Luke", null, "Yoda", "Leia", null));50    }51    @Test52    public void should_pass_if_actual_contains_given_values_only_once_in_different_order() {53        iterables.assertContainsOnlyOnce(TestData.someInfo(), actual, Arrays.array("Leia", "Yoda", "Luke"));54    }55    @Test56    public void should_fail_if_actual_contains_given_values_more_than_once() {57        AssertionInfo info = TestData.someInfo();58        actual.addAll(Lists.newArrayList("Luke", "Luke", null, null));59        Object[] expected = new Object[]{ "Luke", "Luke", "Yoda", "Han", null };60        try {61            iterables.assertContainsOnlyOnce(TestData.someInfo(), actual, expected);62        } catch (AssertionError e) {63            Mockito.verify(failures).failure(info, ShouldContainsOnlyOnce.shouldContainsOnlyOnce(actual, expected, Sets.newLinkedHashSet("Han"), Sets.newLinkedHashSet("Luke", null)));64            return;65        }66        TestFailures.failBecauseExpectedAssertionErrorWasNotThrown();67    }68    @Test69    public void should_fail_if_actual_does_not_contains_null_value() {70        AssertionInfo info = TestData.someInfo();71        actual.addAll(Lists.newArrayList("Luke", "Luke"));72        Object[] expected = new Object[]{ null };73        try {74            iterables.assertContainsOnlyOnce(TestData.someInfo(), actual, expected);75        } catch (AssertionError e) {76            Mockito.verify(failures).failure(info, ShouldContainsOnlyOnce.shouldContainsOnlyOnce(actual, expected, Sets.newLinkedHashSet(Arrays.array(((String) (null)))), Sets.newLinkedHashSet()));77            return;78        }79        TestFailures.failBecauseExpectedAssertionErrorWasNotThrown();80    }81    @Test82    public void should_pass_if_actual_contains_given_values_only_once_even_if_duplicated() {83        iterables.assertContainsOnlyOnce(TestData.someInfo(), actual, Arrays.array("Luke", "Luke", "Luke", "Yoda", "Leia"));84    }85    @Test86    public void should_pass_if_actual_and_given_values_are_empty() {87        actual.clear();88        iterables.assertContainsOnlyOnce(TestData.someInfo(), actual, Arrays.array());89    }90    @Test91    public void should_fail_if_array_of_values_to_look_for_is_empty_and_actual_is_not() {92        Assertions.assertThatExceptionOfType(AssertionError.class).isThrownBy(() -> iterables.assertContainsOnlyOnce(someInfo(), actual, emptyArray()));93    }94    @Test95    public void should_throw_error_if_array_of_values_to_look_for_is_null() {96        Assertions.assertThatNullPointerException().isThrownBy(() -> iterables.assertContainsOnlyOnce(someInfo(), emptyList(), null)).withMessage(ErrorMessages.valuesToLookForIsNull());97    }98    @Test99    public void should_fail_if_actual_is_null() {100        Assertions.assertThatExceptionOfType(AssertionError.class).isThrownBy(() -> iterables.assertContainsOnlyOnce(someInfo(), null, array("Yoda"))).withMessage(FailureMessages.actualIsNull());101    }102    @Test103    public void should_fail_if_actual_does_not_contain_given_values_only_once() {104        AssertionInfo info = TestData.someInfo();105        Object[] expected = new Object[]{ "Luke", "Yoda", "Han" };106        try {107            iterables.assertContainsOnlyOnce(info, actual, expected);108        } catch (AssertionError e) {109            Mockito.verify(failures).failure(info, ShouldContainsOnlyOnce.shouldContainsOnlyOnce(actual, expected, Sets.newLinkedHashSet("Han"), Sets.newLinkedHashSet()));110            return;111        }112        TestFailures.failBecauseExpectedAssertionErrorWasNotThrown();113    }114    // ------------------------------------------------------------------------------------------------------------------115    // tests using a custom comparison strategy116    // ------------------------------------------------------------------------------------------------------------------117    @Test118    public void should_pass_if_actual_contains_given_values_only_once_according_to_custom_comparison_strategy() {119        iterablesWithCaseInsensitiveComparisonStrategy.assertContainsOnlyOnce(TestData.someInfo(), actual, Arrays.array("LUKE", "YODA", "Leia"));120    }121    @Test122    public void should_pass_if_actual_contains_given_values_only_once_in_different_order_according_to_custom_comparison_strategy() {123        iterablesWithCaseInsensitiveComparisonStrategy.assertContainsOnlyOnce(TestData.someInfo(), actual, Arrays.array("LEIA", "yoda", "LukE"));124    }125    @Test126    public void should_fail_if_actual_contains_given_values_more_than_once_according_to_custom_comparison_strategy() {127        AssertionInfo info = TestData.someInfo();128        actual.addAll(Lists.newArrayList("Luke", "Luke"));129        Object[] expected = Arrays.array("luke", "YOda", "LeIA");130        try {131            iterablesWithCaseInsensitiveComparisonStrategy.assertContainsOnlyOnce(TestData.someInfo(), actual, expected);132        } catch (AssertionError e) {133            Mockito.verify(failures).failure(info, ShouldContainsOnlyOnce.shouldContainsOnlyOnce(actual, expected, Sets.newLinkedHashSet(), Sets.newLinkedHashSet("luke"), comparisonStrategy));134            return;135        }136        TestFailures.failBecauseExpectedAssertionErrorWasNotThrown();137    }138    @Test139    public void should_fail_if_actual_contains_given_values_more_than_once_even_if_duplicated_according_to_custom_comparison_strategy() {140        AssertionInfo info = TestData.someInfo();141        actual.addAll(Lists.newArrayList("LUKE"));142        Object[] expected = Arrays.array("LUke", "LUke", "lukE", "YOda", "Leia", "Han");143        try {144            iterablesWithCaseInsensitiveComparisonStrategy.assertContainsOnlyOnce(TestData.someInfo(), actual, expected);145        } catch (AssertionError e) {146            Mockito.verify(failures).failure(info, ShouldContainsOnlyOnce.shouldContainsOnlyOnce(actual, expected, Sets.newLinkedHashSet("Han"), Sets.newLinkedHashSet("LUke", "lukE"), comparisonStrategy));147            return;148        }149        TestFailures.failBecauseExpectedAssertionErrorWasNotThrown();150    }151    @Test152    public void should_fail_if_actual_does_not_contain_given_values_only_according_to_custom_comparison_strategy() {153        AssertionInfo info = TestData.someInfo();154        Object[] expected = new Object[]{ "Luke", "Yoda", "Han" };155        try {156            iterablesWithCaseInsensitiveComparisonStrategy.assertContainsOnlyOnce(info, actual, expected);157        } catch (AssertionError e) {158            Mockito.verify(failures).failure(info, ShouldContainsOnlyOnce.shouldContainsOnlyOnce(actual, expected, Sets.newLinkedHashSet("Han"), Sets.newLinkedHashSet(), comparisonStrategy));159            return;160        }161        TestFailures.failBecauseExpectedAssertionErrorWasNotThrown();162    }163}...

assertContainsOnlyOnce

Using AI Code Generation

1import org.assertj.core.internal.Iterables;2import org.junit.Test;3import java.util.Arrays;4public class AssertJTest {5    public void testAssertContainsOnlyOnce() {6        Iterables iterables = new Iterables();7        iterables.assertContainsOnlyOnce(null, Arrays.asList("a", "b"), "c");8    }9}10	at org.assertj.core.internal.Iterables.assertContainsOnlyOnce(Iterables.java:192)11	at AssertJTest.testAssertContainsOnlyOnce(AssertJTest.java:12)12public void assertContainsOnlyOnce(AssertionInfo info, Iterable<?> actual, Object value) {13    assertNotNull(info, actual);14    if (getOccurrences(actual, value) != 1) {15      throw failures.failure(info, shouldContainOnlyOnce(actual, value));16    }17  }18Recommended Posts: AssertJ | assertContainsOnlyOnce() method in ListAssert class19AssertJ | assertContainsOnlyOnce() method in ObjectArrayAssert class20AssertJ | assertContainsOnlyOnce() method in MapAssert class21AssertJ | assertContainsOnlyOnce() method in AbstractIterableAssert class22AssertJ | assertContainsOnlyOnce() method in AbstractListAssert class23AssertJ | assertContainsOnlyOnce() method in AbstractObjectArrayAssert class24AssertJ | assertContainsOnlyOnce() method in AbstractMapAssert class25AssertJ | assertContainsOnlyOnce() method in AbstractCharSequenceAssert class26AssertJ | assertContainsOnlyOnce() method in AbstractObjectAssert class27AssertJ | assertContainsOnlyOnce() method in AbstractComparableAssert class28AssertJ | assertContainsOnlyOnce() method in AbstractAtomicReferenceAssert class29AssertJ | assertContainsOnlyOnce() method in AbstractAtomicBooleanAssert class30AssertJ | assertContainsOnlyOnce() method in AbstractAtomicIntegerArrayAssert class

assertContainsOnlyOnce

Using AI Code Generation

1package com.journaldev.junit;2import static org.assertj.core.api.Assertions.assertThat;3import static org.assertj.core.api.Assertions.assertThatThrownBy;4import static org.assertj.core.api.Assertions.fail;5import static org.assertj.core.api.Assertions.within;6import static org.assertj.core.api.Assertions.withinPercentage;7import static org.assertj.core.api.Assertions.withinPrecision;8import static org.assertj.core.api.Assertions.withinStrictOffset;9import static org.assertj.core.api.Assertions.withinTolerance;10import static org.assertj.core.api.Assertions.withinTolerancePercentage;11import static org.assertj.core.api.Assertions.withinToleranceRatio;12import static org.assertj.core.api.Assertions.withinToleranceRatioPercentage;13import static org.assertj.core.api.Assertions.withinToleranceRatioStrictOffset;14import static org.assertj.core.api.Assertions.withinToleranceStrictOffset;15import java.util.ArrayList;16import java.util.List;17import org.junit.Test;18public class AssertJAssertionsTest {19	public void testAssertJAssertions() {20		List<String> list = new ArrayList<>();21		list.add("One");22		list.add("Two");23		list.add("Three");24		list.add("Four");25		list.add("Five");26		assertThat(list).contains("One", "Three");27		assertThat(list).containsOnly("One", "Two", "Three", "Four", "Five");28		assertThat(list).containsOnlyOnce("One", "Two", "Three", "Four", "Five");29		assertThat(list).containsExactly("One", "Two", "Three", "Four", "Five");30		assertThat(list).containsExactlyInAnyOrder("Five", "Four", "Three", "Two", "One");31		assertThat(list).containsSequence("One", "Two", "Three");32		assertThat(list).containsSubsequence("One", "Two", "Three");33		assertThat(list).doesNotContain("Six");34		assertThat(list).does

assertContainsOnlyOnce

Using AI Code Generation

1import org.assertj.core.internal.Iterables;2import org.assertj.core.internal.Iterables.assertContainsOnlyOnce;3Iterables iterables = new Iterables();4List<Integer> list = new ArrayList<>();5list.add(1);6list.add(2);7list.add(3);8list.add(4);9list.add(5);10iterables.assertContainsOnlyOnce("The list should contain only once the number 3", list, 3);11List<Integer> list2 = new ArrayList<>();12list2.add(1);13list2.add(2);14list2.add(3);15list2.add(4);16list2.add(5);17list2.add(3);18iterables.assertContainsOnlyOnce("The list should contain only once the number 3", list2, 3);19List<Integer> list3 = new ArrayList<>();20list3.add(1);21list3.add(2);22list3.add(3);23list3.add(4);24list3.add(5);25list3.add(6);26iterables.assertContainsOnlyOnce("The list should contain only once the number 3", list3, 3);27List<Integer> list4 = new ArrayList<>();28list4.add(1);29list4.add(2);30list4.add(3);31list4.add(4);32list4.add(5);33iterables.assertContainsOnlyOnce("The list should contain only once the number 3", list4, 6);34List<Integer> list5 = new ArrayList<>();35list5.add(1

Automation Testing Tutorials

Learn to execute automation testing from scratch with LambdaTest Learning Hub. Right from setting up the prerequisites to run your first automation test, to following best practices and diving deeper into advanced test scenarios. LambdaTest Learning Hubs compile a list of step-by-step guides to help you be proficient with different test automation frameworks i.e. Selenium, Cypress, TestNG etc.