新增密码传输解密服务

ruoyi-framework/src/test/java/com/ruoyi/framework/web/service/PasswordTransferCryptoServiceTest.java

@@ -0,0 +1,47 @@
+package com.ruoyi.framework.web.service;
+
+import static org.junit.jupiter.api.Assertions.assertEquals;
+import static org.junit.jupiter.api.Assertions.assertThrows;
+
+import java.nio.charset.StandardCharsets;
+import java.util.Base64;
+import javax.crypto.Cipher;
+import javax.crypto.spec.SecretKeySpec;
+import org.junit.jupiter.api.BeforeEach;
+import org.junit.jupiter.api.Test;
+import org.springframework.test.util.ReflectionTestUtils;
+import com.ruoyi.common.exception.ServiceException;
+
+class PasswordTransferCryptoServiceTest
+{
+    private static final String KEY = "1234567890abcdef";
+
+    private PasswordTransferCryptoService service;
+
+    @BeforeEach
+    void setUp()
+    {
+        service = new PasswordTransferCryptoService();
+        ReflectionTestUtils.setField(service, "key", KEY);
+    }
+
+    @Test
+    void shouldDecryptValidCipherText() throws Exception
+    {
+        String plain = service.decrypt(encrypt("admin123"));
+        assertEquals("admin123", plain);
+    }
+
+    @Test
+    void shouldRejectInvalidCipherText()
+    {
+        assertThrows(ServiceException.class, () -> service.decrypt("not-base64"));
+    }
+
+    private String encrypt(String plainText) throws Exception
+    {
+        Cipher cipher = Cipher.getInstance("AES/ECB/PKCS5Padding");
+        cipher.init(Cipher.ENCRYPT_MODE, new SecretKeySpec(KEY.getBytes(StandardCharsets.UTF_8), "AES"));
+        return Base64.getEncoder().encodeToString(cipher.doFinal(plainText.getBytes(StandardCharsets.UTF_8)));
+    }
+}