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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

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