diff --git a/hutool-core/src/test/java/org/dromara/hutool/core/date/IssueIB8OFSTest.java b/hutool-core/src/test/java/org/dromara/hutool/core/date/IssueIB8OFSTest.java
index 05f55d222..14c5930a4 100644
--- a/hutool-core/src/test/java/org/dromara/hutool/core/date/IssueIB8OFSTest.java
+++ b/hutool-core/src/test/java/org/dromara/hutool/core/date/IssueIB8OFSTest.java
@@ -16,6 +16,7 @@
 
 package org.dromara.hutool.core.date;
 
+import org.junit.jupiter.api.Assertions;
 import org.junit.jupiter.api.Test;
 
 import java.util.List;
@@ -23,19 +24,17 @@ import java.util.List;
 public class IssueIB8OFSTest {
 	@Test
 	void rangeTest() {
-		DateRange startRange = DateUtil.range(
+		final DateRange startRange = DateUtil.range(
 			DateUtil.parse("2017-01-01"),
 			DateUtil.parse("2017-01-31"), DateField.DAY_OF_YEAR);
-		DateRange endRange = DateUtil.range(
+		final DateRange endRange = DateUtil.range(
 			DateUtil.parse("2017-01-31"),
 			DateUtil.parse("2017-02-02"), DateField.DAY_OF_YEAR);
 
-		List<DateTime> dateTimes = DateUtil.rangeContains(startRange, endRange);
-		System.out.println("交集: ");
-		dateTimes.forEach(System.out::println);
+		final List<DateTime> dateTimes = DateUtil.rangeContains(startRange, endRange);
+		Assertions.assertEquals(1, dateTimes.size());
 
-		List<DateTime> dateNotTimes = DateUtil.rangeNotContains(startRange, endRange);
-		System.out.println("差集: ");
-		dateNotTimes.forEach(System.out::println);
+		final List<DateTime> dateNotTimes = DateUtil.rangeNotContains(startRange, endRange);
+		Assertions.assertEquals(2, dateNotTimes.size());
 	}
 }