diff --git a/hutool-core/src/test/java/org/dromara/hutool/core/array/ArrayUtilTest.java b/hutool-core/src/test/java/org/dromara/hutool/core/array/ArrayUtilTest.java
index 407062007..0162c71d7 100644
--- a/hutool-core/src/test/java/org/dromara/hutool/core/array/ArrayUtilTest.java
+++ b/hutool-core/src/test/java/org/dromara/hutool/core/array/ArrayUtilTest.java
@@ -829,6 +829,20 @@ public class ArrayUtilTest {
 			new String(a.getBytes(CharsetUtil.UTF_8), 1, 4));
 	}
 
+	@Test
+	void copyTest() {
+		final String[] dest = new String[3];
+		ArrayUtil.copy(new String[]{"a", "b"}, dest);
+		Assertions.assertArrayEquals(new String[]{"a", "b", null}, dest);
+	}
+
+	@Test
+	void copyTest2() {
+		final String[] dest = new String[3];
+		ArrayUtil.copy(new String[]{"a", "b"}, dest, 1);
+		Assertions.assertArrayEquals(new String[]{"a", null, null}, dest);
+	}
+
 	@Test
 	public void regionMatchesTest() {
 		final byte[] a = new byte[]{1, 2, 3, 4, 5};