SingleElementTest.java

packagecom.thealgorithms.bitmanipulation;

importstaticorg.junit.jupiter.api.Assertions.assertEquals;

importjava.util.stream.Stream;
importorg.junit.jupiter.params.ParameterizedTest;
importorg.junit.jupiter.params.provider.Arguments;
importorg.junit.jupiter.params.provider.MethodSource;

publicfinalclassSingleElementTest {

/**
 * Parameterized test to find the single non-duplicate element
 * in the given arrays.
 *
 * @param arr the input array where every element appears twice except one
 * @param expected the expected single element result
 */
@ParameterizedTest
@MethodSource("provideTestCases")
voidtestFindSingleElement(int[] arr, intexpected) {
assertEquals(expected, SingleElement.findSingleElement(arr));
 }

/**
 * Provides test cases for the parameterized test.
 *
 * @return Stream of arguments consisting of arrays and expected results
 */
privatestaticStream<Arguments> provideTestCases() {
returnStream.of(Arguments.of(newint[] {1, 1, 2, 2, 4, 4, 3}, 3), Arguments.of(newint[] {1, 2, 2, 3, 3}, 1), Arguments.of(newint[] {10}, 10));
 }
}