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StalinSortTest.java
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53 lines (45 loc) · 1.56 KB
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package com.thealgorithms.sorts;
import static org.junit.jupiter.api.Assertions.assertArrayEquals;
import org.junit.jupiter.api.Test;
public class StalinSortTest {
@Test
public void testSortIntegers() {
StalinSort stalinSort = new StalinSort();
Integer[] input = {4, 23, 6, 78, 1, 54, 231, 9, 12};
Integer[] expected = {4, 23, 78, 231};
Integer[] result = stalinSort.sort(input);
assertArrayEquals(expected, result);
}
@Test
public void testSortStrings() {
StalinSort stalinSort = new StalinSort();
String[] input = {"c", "a", "e", "b", "d"};
String[] expected = {"c", "e"};
String[] result = stalinSort.sort(input);
assertArrayEquals(expected, result);
}
@Test
public void testSortWithDuplicates() {
StalinSort stalinSort = new StalinSort();
Integer[] input = {1, 3, 2, 2, 5, 4};
Integer[] expected = {1, 3, 5};
Integer[] result = stalinSort.sort(input);
assertArrayEquals(expected, result);
}
@Test
public void testSortEmptyArray() {
StalinSort stalinSort = new StalinSort();
Integer[] input = {};
Integer[] expected = {};
Integer[] result = stalinSort.sort(input);
assertArrayEquals(expected, result);
}
@Test
public void testSortSingleElement() {
StalinSort stalinSort = new StalinSort();
Integer[] input = {42};
Integer[] expected = {42};
Integer[] result = stalinSort.sort(input);
assertArrayEquals(expected, result);
}
}