From 060296167b7ac732faa497577cde2683fe18c6ef Mon Sep 17 00:00:00 2001
From: Looly <loolly@aliyun.com>
Date: Wed, 24 Apr 2024 14:49:56 +0800
Subject: [PATCH] =?UTF-8?q?Captcha.setBackground=E4=B8=BAnull=E6=97=B6?=
 =?UTF-8?q?=E8=83=8C=E6=99=AF=E9=80=8F=E6=98=8E?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 .../org/dromara/hutool/swing/captcha/CaptchaTest.java    | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/hutool-swing/src/test/java/org/dromara/hutool/swing/captcha/CaptchaTest.java b/hutool-swing/src/test/java/org/dromara/hutool/swing/captcha/CaptchaTest.java
index 1bc990670..ee0a3c53c 100644
--- a/hutool-swing/src/test/java/org/dromara/hutool/swing/captcha/CaptchaTest.java
+++ b/hutool-swing/src/test/java/org/dromara/hutool/swing/captcha/CaptchaTest.java
@@ -44,6 +44,15 @@ public class CaptchaTest {
 		lineCaptcha.write("f:/test/captcha/tellow.png");
 	}
 
+	@Test
+	@Disabled
+	public void noBackgroundCaptchaTest() {
+		// 定义图形验证码的长和宽
+		final LineCaptcha lineCaptcha = CaptchaUtil.ofLineCaptcha(200, 70, 4, 15);
+		lineCaptcha.setBackground(null);
+		lineCaptcha.write("d:/test/captcha/tellow.png");
+	}
+
 	@Test
 	@Disabled
 	public void lineCaptchaWithMathTest() {