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Changed isEmpty to accept multiple variables

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This commit is contained in:
Ziver Koc 2022-06-01 19:59:22 +02:00
parent 4e01c413e9
commit 75fa916ca5
2 changed files with 37 additions and 2 deletions
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17
src/zutil/ObjectUtil.java
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@ -32,10 +32,25 @@ import java.util.Map;
*/
public class ObjectUtil {
/**
* @return true if all given Objects are null or empty String, List or Map
*/
public static boolean isEmpty(Object... objs) {
if (isEmptyCheck(objs))
return true;
for (Object obj : objs) {
if (!isEmptyCheck(obj))
return false;
}
return true;
}
/**
* @return true if obj is null or empty String, List, Map
*/
public static boolean isEmpty(Object obj) {
private static boolean isEmptyCheck(Object obj) {
if (obj == null)
return true;

22
test/zutil/ObjectUtilTest.java
View file

@ -32,9 +32,29 @@ import static org.junit.Assert.*;
public class ObjectUtilTest {
@Test
public void isEmptyArr() {
assertTrue(ObjectUtil.isEmpty());
assertTrue(ObjectUtil.isEmpty(null, null));
assertTrue(ObjectUtil.isEmpty("", "", ""));
assertTrue(ObjectUtil.isEmpty(new StringBuffer(), ""));
assertTrue(ObjectUtil.isEmpty("", new StringBuilder()));
assertTrue(ObjectUtil.isEmpty(new ArrayList<>(), ""));
assertTrue(ObjectUtil.isEmpty(new LinkedList<>(), ""));
assertTrue(ObjectUtil.isEmpty(new HashMap<>(), ""));
assertTrue(ObjectUtil.isEmpty(new Hashtable<>(), ""));
assertFalse(ObjectUtil.isEmpty(" ", ""));
assertFalse(ObjectUtil.isEmpty("a", ""));
assertFalse(ObjectUtil.isEmpty("", new StringBuilder("a")));
assertFalse(ObjectUtil.isEmpty("", new StringBuffer("a")));
assertFalse(ObjectUtil.isEmpty("", Arrays.asList(1, 2, 3)));
}
@Test
public void isEmpty() {
assertTrue(ObjectUtil.isEmpty(null));
assertTrue(ObjectUtil.isEmpty((String) null));
assertTrue(ObjectUtil.isEmpty(""));
assertTrue(ObjectUtil.isEmpty(new StringBuffer()));
assertTrue(ObjectUtil.isEmpty(new StringBuilder()));