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package de.unipotsdam.cs.toolup.util;
import org.testng.annotations.Test;
import java.util.Arrays;
import java.util.HashSet;
import java.util.List;
import java.util.Set;
import static junit.framework.Assert.assertEquals;
import static org.testng.AssertJUnit.assertTrue;
@SuppressWarnings("ALL")
public class SubsetUtilTest {
List<String> superList = Arrays.asList("1", "2", "4", "3");
Set<String> superSet = new HashSet<>(superList);
@Test
public void testThatSubsetUtilReturnsAllSubSetsOfSize4() {
//arrange
//act
Set<Set<String>> subSets = SubsetUtil.getAllSubsetsOfSize(superSet, 4);
//assert
assertTrue(subSets.contains(superSet));
}
@Test
public void testThatSubsetUtilReturnsAllSubSetsOfSize3() {
//arrange
List<String> subList1 = Arrays.asList("1", "2", "4");
List<String> subList2 = Arrays.asList("1", "2", "3");
List<String> subList3 = Arrays.asList("1", "4", "3");
List<String> subList4 = Arrays.asList("3", "2", "4");
//act
Set<Set<String>> subSets = SubsetUtil.getAllSubsetsOfSize(superSet, 3);
//assert
assertTrue(subSets.contains(new HashSet(subList1)));
assertTrue(subSets.contains(new HashSet(subList2)));
assertTrue(subSets.contains(new HashSet(subList3)));
assertTrue(subSets.contains(new HashSet(subList4)));
}
@Test
public void testThatSubsetUtilReturnsAllSubSetsOfSize2() {
//arrange
//act
Set<Set<String>> subSets = SubsetUtil.getAllSubsetsOfSize(superSet, 2);
//assert
assertEquals(6, subSets.size());
}
@Test
public void testThatSubsetUtilReturnsAllSubSetsOfSize1() {
//arrange
List<String> subList1 = Arrays.asList("1");
List<String> subList2 = Arrays.asList("2");
List<String> subList3 = Arrays.asList("3");
List<String> subList4 = Arrays.asList("4");
//act
Set<Set<String>> subSets = SubsetUtil.getAllSubsetsOfSize(superSet, 1);
//assert
assertTrue(subSets.contains(new HashSet(subList1)));
assertTrue(subSets.contains(new HashSet(subList2)));
assertTrue(subSets.contains(new HashSet(subList3)));
assertTrue(subSets.contains(new HashSet(subList4)));
}
}