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add test

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Looly
2025-08-11 11:00:55 +08:00
parent 2b8284c7fb
commit 68ef91b6fb
2 changed files with 42 additions and 38 deletions
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60
hutool-core/src/test/java/cn/hutool/core/collection/CollStreamUtilTest.java
View File

@@ -4,13 +4,14 @@ import cn.hutool.core.map.MapUtil;
import lombok.AllArgsConstructor; import lombok.AllArgsConstructor;
import lombok.Data; import lombok.Data;
import lombok.ToString; import lombok.ToString;
import static org.junit.jupiter.api.Assertions.*;
import org.junit.jupiter.api.Test; import org.junit.jupiter.api.Test;
import java.util.*; import java.util.*;
import java.util.stream.Collector; import java.util.stream.Collector;
import java.util.stream.Collectors; import java.util.stream.Collectors;
import static org.junit.jupiter.api.Assertions.*;
/** /**
* CollectionStream测试方法 * CollectionStream测试方法
*/ */
@@ -19,17 +20,17 @@ public class CollStreamUtilTest {
@Test @Test
public void testToIdentityMap() { public void testToIdentityMap() {
Map<Long, Student> map = CollStreamUtil.toIdentityMap(null, Student::getStudentId); Map<Long, Student> map = CollStreamUtil.toIdentityMap(null, Student::getStudentId);
assertEquals(map, Collections.EMPTY_MAP); assertEquals(Collections.EMPTY_MAP, map);
List<Student> list = new ArrayList<>(); List<Student> list = new ArrayList<>();
map = CollStreamUtil.toIdentityMap(list, Student::getStudentId); map = CollStreamUtil.toIdentityMap(list, Student::getStudentId);
assertEquals(map, Collections.EMPTY_MAP); assertEquals(Collections.EMPTY_MAP, map);
list.add(new Student(1, 1, 1, "张三")); list.add(new Student(1, 1, 1, "张三"));
list.add(new Student(1, 1, 2, "李四")); list.add(new Student(1, 1, 2, "李四"));
list.add(new Student(1, 1, 3, "王五")); list.add(new Student(1, 1, 3, "王五"));
map = CollStreamUtil.toIdentityMap(list, Student::getStudentId); map = CollStreamUtil.toIdentityMap(list, Student::getStudentId);
assertEquals(map.get(1L).getName(), "张三"); assertEquals("张三", map.get(1L).getName());
assertEquals(map.get(2L).getName(), "李四"); assertEquals("李四", map.get(2L).getName());
assertEquals(map.get(3L).getName(), "王五"); assertEquals("王五", map.get(3L).getName());
assertNull(map.get(4L)); assertNull(map.get(4L));
// 测试value为空时 // 测试value为空时
@@ -41,17 +42,17 @@ public class CollStreamUtilTest {
@Test @Test
public void testToMap() { public void testToMap() {
Map<Long, String> map = CollStreamUtil.toMap(null, Student::getStudentId, Student::getName); Map<Long, String> map = CollStreamUtil.toMap(null, Student::getStudentId, Student::getName);
assertEquals(map, Collections.EMPTY_MAP); assertEquals(Collections.EMPTY_MAP, map);
List<Student> list = new ArrayList<>(); List<Student> list = new ArrayList<>();
map = CollStreamUtil.toMap(list, Student::getStudentId, Student::getName); map = CollStreamUtil.toMap(list, Student::getStudentId, Student::getName);
assertEquals(map, Collections.EMPTY_MAP); assertEquals(Collections.EMPTY_MAP, map);
list.add(new Student(1, 1, 1, "张三")); list.add(new Student(1, 1, 1, "张三"));
list.add(new Student(1, 1, 2, "李四")); list.add(new Student(1, 1, 2, "李四"));
list.add(new Student(1, 1, 3, "王五")); list.add(new Student(1, 1, 3, "王五"));
map = CollStreamUtil.toMap(list, Student::getStudentId, Student::getName); map = CollStreamUtil.toMap(list, Student::getStudentId, Student::getName);
assertEquals(map.get(1L), "张三"); assertEquals("张三", map.get(1L));
assertEquals(map.get(2L), "李四"); assertEquals("李四", map.get(2L));
assertEquals(map.get(3L), "王五"); assertEquals("王五", map.get(3L));
assertNull(map.get(4L)); assertNull(map.get(4L));
// 测试value为空时 // 测试value为空时
@@ -64,7 +65,7 @@ public class CollStreamUtilTest {
public void testToMap_KeyCollision_SilentlyOverwrite() { public void testToMap_KeyCollision_SilentlyOverwrite() {
List<Student> list = new ArrayList<>(); List<Student> list = new ArrayList<>();
list.add(new Student(1, 101, 1, "张三")); list.add(new Student(1, 101, 1, "张三"));
list.add(new Student(1, 102, 1, "李四")); list.add(new Student(1, 102, 1, "李四"));
Map<Long, String> map = CollStreamUtil.toMap(list, Student::getStudentId, Student::getName, false); Map<Long, String> map = CollStreamUtil.toMap(list, Student::getStudentId, Student::getName, false);
assertEquals(1, map.size()); assertEquals(1, map.size());
@@ -97,10 +98,10 @@ public class CollStreamUtilTest {
@Test @Test
public void testGroupByKey() { public void testGroupByKey() {
Map<Long, List<Student>> map = CollStreamUtil.groupByKey(null, Student::getClassId); Map<Long, List<Student>> map = CollStreamUtil.groupByKey(null, Student::getClassId);
assertEquals(map, Collections.EMPTY_MAP); assertEquals(Collections.EMPTY_MAP, map);
List<Student> list = new ArrayList<>(); List<Student> list = new ArrayList<>();
map = CollStreamUtil.groupByKey(list, Student::getClassId); map = CollStreamUtil.groupByKey(list, Student::getClassId);
assertEquals(map, Collections.EMPTY_MAP); assertEquals(Collections.EMPTY_MAP, map);
list.add(new Student(1, 1, 1, "张三")); list.add(new Student(1, 1, 1, "张三"));
list.add(new Student(1, 2, 2, "李四")); list.add(new Student(1, 2, 2, "李四"));
list.add(new Student(2, 1, 1, "擎天柱")); list.add(new Student(2, 1, 1, "擎天柱"));
@@ -126,10 +127,10 @@ public class CollStreamUtilTest {
@Test @Test
public void testGroupBy2Key() { public void testGroupBy2Key() {
Map<Long, Map<Long, List<Student>>> map = CollStreamUtil.groupBy2Key(null, Student::getTermId, Student::getClassId); Map<Long, Map<Long, List<Student>>> map = CollStreamUtil.groupBy2Key(null, Student::getTermId, Student::getClassId);
assertEquals(map, Collections.EMPTY_MAP); assertEquals(Collections.EMPTY_MAP, map);
List<Student> list = new ArrayList<>(); List<Student> list = new ArrayList<>();
map = CollStreamUtil.groupBy2Key(list, Student::getTermId, Student::getClassId); map = CollStreamUtil.groupBy2Key(list, Student::getTermId, Student::getClassId);
assertEquals(map, Collections.EMPTY_MAP); assertEquals(Collections.EMPTY_MAP, map);
list.add(new Student(1, 1, 1, "张三")); list.add(new Student(1, 1, 1, "张三"));
list.add(new Student(1, 2, 2, "李四")); list.add(new Student(1, 2, 2, "李四"));
list.add(new Student(1, 2, 3, "王五")); list.add(new Student(1, 2, 3, "王五"));
@@ -165,11 +166,11 @@ public class CollStreamUtilTest {
@Test @Test
public void testGroup2Map() { public void testGroup2Map() {
Map<Long, Map<Long, Student>> map = CollStreamUtil.group2Map(null, Student::getTermId, Student::getClassId); Map<Long, Map<Long, Student>> map = CollStreamUtil.group2Map(null, Student::getTermId, Student::getClassId);
assertEquals(map, Collections.EMPTY_MAP); assertEquals(Collections.EMPTY_MAP, map);
List<Student> list = new ArrayList<>(); List<Student> list = new ArrayList<>();
map = CollStreamUtil.group2Map(list, Student::getTermId, Student::getClassId); map = CollStreamUtil.group2Map(list, Student::getTermId, Student::getClassId);
assertEquals(map, Collections.EMPTY_MAP); assertEquals(Collections.EMPTY_MAP, map);
list.add(new Student(1, 1, 1, "张三")); list.add(new Student(1, 1, 1, "张三"));
list.add(new Student(1, 2, 1, "李四")); list.add(new Student(1, 2, 1, "李四"));
list.add(new Student(2, 2, 1, "王五")); list.add(new Student(2, 2, 1, "王五"));
@@ -186,7 +187,10 @@ public class CollStreamUtilTest {
// 对null友好 // 对null友好
Map<Long, Map<Long, Student>> termIdClassIdStudentMap = CollStreamUtil.group2Map(Arrays.asList(null, new Student(2, 2, 1, "王五")), Student::getTermId, Student::getClassId); Map<Long, Map<Long, Student>> termIdClassIdStudentMap = CollStreamUtil.group2Map(Arrays.asList(null, new Student(2, 2, 1, "王五")), Student::getTermId, Student::getClassId);
Map<Long, Map<Long, Student>> termIdClassIdStudentCompareMap = new HashMap<Long, Map<Long, Student>>() {{ Map<Long, Map<Long, Student>> termIdClassIdStudentCompareMap = new HashMap<Long, Map<Long, Student>>() {
private static final long serialVersionUID = -26683057599474572L;
{
put(null, MapUtil.of(null, null)); put(null, MapUtil.of(null, null));
put(2L, MapUtil.of(2L, new Student(2, 2, 1, "王五"))); put(2L, MapUtil.of(2L, new Student(2, 2, 1, "王五")));
}}; }};
@@ -196,11 +200,11 @@ public class CollStreamUtilTest {
@Test @Test
public void testGroupKeyValue() { public void testGroupKeyValue() {
Map<Long, List<Long>> map = CollStreamUtil.groupKeyValue(null, Student::getTermId, Student::getClassId); Map<Long, List<Long>> map = CollStreamUtil.groupKeyValue(null, Student::getTermId, Student::getClassId);
assertEquals(map, Collections.EMPTY_MAP); assertEquals(Collections.EMPTY_MAP, map);
List<Student> list = new ArrayList<>(); List<Student> list = new ArrayList<>();
map = CollStreamUtil.groupKeyValue(list, Student::getTermId, Student::getClassId); map = CollStreamUtil.groupKeyValue(list, Student::getTermId, Student::getClassId);
assertEquals(map, Collections.EMPTY_MAP); assertEquals(Collections.EMPTY_MAP, map);
list.add(new Student(1, 1, 1, "张三")); list.add(new Student(1, 1, 1, "张三"));
list.add(new Student(1, 2, 1, "李四")); list.add(new Student(1, 2, 1, "李四"));
list.add(new Student(2, 2, 1, "王五")); list.add(new Student(2, 2, 1, "王五"));
@@ -218,12 +222,12 @@ public class CollStreamUtilTest {
// 参数null测试 // 参数null测试
Map<Long, List<Student>> map = CollStreamUtil.groupBy(null, Student::getTermId, Collectors.toList()); Map<Long, List<Student>> map = CollStreamUtil.groupBy(null, Student::getTermId, Collectors.toList());
assertEquals(map, Collections.EMPTY_MAP); assertEquals(Collections.EMPTY_MAP, map);
// 参数空数组测试 // 参数空数组测试
List<Student> list = new ArrayList<>(); List<Student> list = new ArrayList<>();
map = CollStreamUtil.groupBy(list, Student::getTermId, Collectors.toList()); map = CollStreamUtil.groupBy(list, Student::getTermId, Collectors.toList());
assertEquals(map, Collections.EMPTY_MAP); assertEquals(Collections.EMPTY_MAP, map);
// 放入元素 // 放入元素
list.add(new Student(1, 1, 1, "张三")); list.add(new Student(1, 1, 1, "张三"));
@@ -264,10 +268,10 @@ public class CollStreamUtilTest {
@Test @Test
public void testTranslate2List() { public void testTranslate2List() {
List<String> list = CollStreamUtil.toList(null, Student::getName); List<String> list = CollStreamUtil.toList(null, Student::getName);
assertEquals(list, Collections.EMPTY_LIST); assertEquals(Collections.EMPTY_LIST, list);
List<Student> students = new ArrayList<>(); List<Student> students = new ArrayList<>();
list = CollStreamUtil.toList(students, Student::getName); list = CollStreamUtil.toList(students, Student::getName);
assertEquals(list, Collections.EMPTY_LIST); assertEquals(Collections.EMPTY_LIST, list);
students.add(new Student(1, 1, 1, "张三")); students.add(new Student(1, 1, 1, "张三"));
students.add(new Student(1, 2, 2, "李四")); students.add(new Student(1, 2, 2, "李四"));
students.add(new Student(2, 1, 1, "李四")); students.add(new Student(2, 1, 1, "李四"));
@@ -286,10 +290,10 @@ public class CollStreamUtilTest {
@Test @Test
public void testTranslate2Set() { public void testTranslate2Set() {
Set<String> set = CollStreamUtil.toSet(null, Student::getName); Set<String> set = CollStreamUtil.toSet(null, Student::getName);
assertEquals(set, Collections.EMPTY_SET); assertEquals(Collections.EMPTY_SET, set);
List<Student> students = new ArrayList<>(); List<Student> students = new ArrayList<>();
set = CollStreamUtil.toSet(students, Student::getName); set = CollStreamUtil.toSet(students, Student::getName);
assertEquals(set, Collections.EMPTY_SET); assertEquals(Collections.EMPTY_SET, set);
students.add(new Student(1, 1, 1, "张三")); students.add(new Student(1, 1, 1, "张三"));
students.add(new Student(1, 2, 2, "李四")); students.add(new Student(1, 2, 2, "李四"));
students.add(new Student(2, 1, 1, "李四")); students.add(new Student(2, 1, 1, "李四"));
@@ -308,7 +312,7 @@ public class CollStreamUtilTest {
Map<Long, Student> map1 = null; Map<Long, Student> map1 = null;
Map<Long, Student> map2 = Collections.emptyMap(); Map<Long, Student> map2 = Collections.emptyMap();
Map<Long, String> map = CollStreamUtil.merge(map1, map2, (s1, s2) -> s1.getName() + s2.getName()); Map<Long, String> map = CollStreamUtil.merge(map1, map2, (s1, s2) -> s1.getName() + s2.getName());
assertEquals(map, Collections.EMPTY_MAP); assertEquals(Collections.EMPTY_MAP, map);
map1 = new HashMap<>(); map1 = new HashMap<>();
map1.put(1L, new Student(1, 1, 1, "张三")); map1.put(1L, new Student(1, 1, 1, "张三"));
map = CollStreamUtil.merge(map1, map2, this::merge); map = CollStreamUtil.merge(map1, map2, this::merge);

20
hutool-core/src/test/java/cn/hutool/core/collection/CollUtilTest.java
View File

@@ -230,7 +230,7 @@ public class CollUtilTest {
final List<String> r2 = CollUtil.subtractToList(map1.keySet(), map2.keySet()); final List<String> r2 = CollUtil.subtractToList(map1.keySet(), map2.keySet());
assertEquals("[1]", r2.toString()); assertEquals("[1]", r2.toString());
} }
@Test @Test
public void testSubtractWithDuplicates() { public void testSubtractWithDuplicates() {
Collection<String> coll1 = new ArrayList<>(Arrays.asList("a", "b", "b", "c")); Collection<String> coll1 = new ArrayList<>(Arrays.asList("a", "b", "b", "c"));
@@ -874,7 +874,7 @@ public class CollUtilTest {
@Test @Test
public void lastIndexOf_EmptyCollection() { public void lastIndexOf_EmptyCollection() {
List<String> list = CollUtil.newArrayList(); List<String> list = CollUtil.newArrayList();
int idx = CollUtil.lastIndexOf(list, item -> item != null); int idx = CollUtil.lastIndexOf(list, Objects::nonNull);
assertEquals(-1, idx); assertEquals(-1, idx);
} }
@@ -967,7 +967,7 @@ public class CollUtilTest {
// 测试集合1和集合2不包含相同元素的情况 // 测试集合1和集合2不包含相同元素的情况
final List<String> list1 = Arrays.asList("a", "b", "c"); final List<String> list1 = Arrays.asList("a", "b", "c");
final List<String> list2 = Arrays.asList("d", "e", "f"); final List<String> list2 = Arrays.asList("d", "e", "f");
// 期望结果：返回集合1的完整拷贝 // 期望结果：返回集合1的完整拷贝
final List<String> result = CollUtil.subtractToList(list1, list2); final List<String> result = CollUtil.subtractToList(list1, list2);
assertEquals(3, result.size()); assertEquals(3, result.size());
@@ -976,11 +976,11 @@ public class CollUtilTest {
assertEquals("c", result.get(2)); assertEquals("c", result.get(2));
assertEquals(list1, result); assertEquals(list1, result);
assertNotSame(list1, result); // 确保返回的是拷贝而不是原始引用 assertNotSame(list1, result); // 确保返回的是拷贝而不是原始引用
// 测试集合1中有重复元素的情况 // 测试集合1中有重复元素的情况
final List<String> list3 = Arrays.asList("a", "a", "b", "b", "c"); final List<String> list3 = Arrays.asList("a", "a", "b", "b", "c");
final List<String> list4 = Arrays.asList("d", "e", "f"); final List<String> list4 = Arrays.asList("d", "e", "f");
// 期望结果：返回集合1的完整拷贝，包括重复元素 // 期望结果：返回集合1的完整拷贝，包括重复元素
final List<String> result2 = CollUtil.subtractToList(list3, list4); final List<String> result2 = CollUtil.subtractToList(list3, list4);
assertEquals(5, result2.size()); assertEquals(5, result2.size());
@@ -991,11 +991,11 @@ public class CollUtilTest {
assertEquals("c", result2.get(4)); assertEquals("c", result2.get(4));
assertEquals(list3, result2); assertEquals(list3, result2);
assertNotSame(list3, result2); assertNotSame(list3, result2);
// 测试不同类型的元素但确保两个集合的泛型类型一致 // 测试不同类型的元素但确保两个集合的泛型类型一致
final List<Integer> list5 = Arrays.asList(1, 2, 3); final List<Integer> list5 = Arrays.asList(1, 2, 3);
final List<Integer> list6 = Arrays.asList(4, 5, 6); final List<Integer> list6 = Arrays.asList(4, 5, 6);
// 期望结果：返回集合1的完整拷贝 // 期望结果：返回集合1的完整拷贝
final List<Integer> result3 = CollUtil.subtractToList(list5, list6); final List<Integer> result3 = CollUtil.subtractToList(list5, list6);
assertEquals(3, result3.size()); assertEquals(3, result3.size());
@@ -1287,9 +1287,9 @@ public class CollUtilTest {
genderMap.put(5, "小孩"); genderMap.put(5, "小孩");
genderMap.put(6, "男"); genderMap.put(6, "男");
assertEquals(people.get(1).getGender(), "woman"); assertEquals("woman", people.get(1).getGender());
CollUtil.setValueByMap(people, genderMap, Person::getId, Person::setGender); CollUtil.setValueByMap(people, genderMap, Person::getId, Person::setGender);
assertEquals(people.get(1).getGender(), "妇女"); assertEquals("妇女", people.get(1).getGender());
final Map<Integer, Person> personMap = new HashMap<>(); final Map<Integer, Person> personMap = new HashMap<>();
personMap.put(1, new Person("AA", 21, "男", 1)); personMap.put(1, new Person("AA", 21, "男", 1));
@@ -1305,7 +1305,7 @@ public class CollUtilTest {
x.setAge(y.getAge()); x.setAge(y.getAge());
}); });
assertEquals(people.get(1).getGender(), "小孩"); assertEquals("小孩", people.get(1).getGender());
} }
@Test @Test