add test

hutool-json/src/test/java/cn/hutool/json/IssueI71BE6Test.java

@@ -0,0 +1,28 @@
+/*
+ * Copyright (c) 2023 looly(loolly@aliyun.com)
+ * Hutool is licensed under Mulan PSL v2.
+ * You can use this software according to the terms and conditions of the Mulan PSL v2.
+ * You may obtain a copy of Mulan PSL v2 at:
+ *          http://license.coscl.org.cn/MulanPSL2
+ * THIS SOFTWARE IS PROVIDED ON AN "AS IS" BASIS, WITHOUT WARRANTIES OF ANY KIND,
+ * EITHER EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO NON-INFRINGEMENT,
+ * MERCHANTABILITY OR FIT FOR A PARTICULAR PURPOSE.
+ * See the Mulan PSL v2 for more details.
+ */
+
+package cn.hutool.json;
+
+import org.junit.Assert;
+import org.junit.Test;
+
+public class IssueI71BE6Test {
+
+	@Test
+	public void toArrayTest() {
+
+		final String jsonStr = "[50.0,50.0,50.0,50.0]";
+
+		final Double[] doubles = (Double[]) JSONUtil.parseArray(jsonStr).toArray(Double[].class);
+		Assert.assertArrayEquals(new Double[]{50.0,50.0,50.0,50.0}, doubles);
+	}
+}