diff --git a/weixin-java-open/src/test/java/me/chanjar/weixin/open/api/impl/WxOpenOAuth2ServiceImplTest.java b/weixin-java-open/src/test/java/me/chanjar/weixin/open/api/impl/WxOpenOAuth2ServiceImplTest.java
index 17387fcc1..c32eb1fcf 100644
--- a/weixin-java-open/src/test/java/me/chanjar/weixin/open/api/impl/WxOpenOAuth2ServiceImplTest.java
+++ b/weixin-java-open/src/test/java/me/chanjar/weixin/open/api/impl/WxOpenOAuth2ServiceImplTest.java
@@ -1,9 +1,10 @@
 package me.chanjar.weixin.open.api.impl;
 
+import me.chanjar.weixin.common.bean.oauth2.WxOAuth2AccessToken;
+import me.chanjar.weixin.common.error.WxErrorException;
+import org.testng.annotations.BeforeTest;
 import org.testng.annotations.Test;
 
-import static org.testng.Assert.*;
-
 /**
  * 单元测试.
  *
@@ -11,28 +12,40 @@ import static org.testng.Assert.*;
  * @date 2020-10-19
  */
 public class WxOpenOAuth2ServiceImplTest {
+  private final WxOpenOAuth2ServiceImpl service = new WxOpenOAuth2ServiceImpl("123", "");
+
+  @BeforeTest
+  public void init() {
+    this.service.setWxOpenConfigStorage(new WxOpenInMemoryConfigStorage());
+  }
 
   @Test
   public void testBuildAuthorizationUrl() {
+    this.service.buildAuthorizationUrl("", "", "");
   }
 
   @Test
-  public void testGetAccessToken() {
+  public void testGetAccessToken() throws WxErrorException {
+    this.service.getAccessToken("a");
   }
 
   @Test
-  public void testTestGetAccessToken() {
+  public void testTestGetAccessToken() throws WxErrorException {
+    this.service.getAccessToken("", "", "");
   }
 
   @Test
-  public void testRefreshAccessToken() {
+  public void testRefreshAccessToken() throws WxErrorException {
+    this.service.refreshAccessToken("");
   }
 
   @Test
-  public void testGetUserInfo() {
+  public void testGetUserInfo() throws WxErrorException {
+    this.service.getUserInfo(new WxOAuth2AccessToken(), "");
   }
 
   @Test
   public void testValidateAccessToken() {
+    this.service.validateAccessToken(new WxOAuth2AccessToken());
   }
 }