diff --git a/weixin-java-cp/src/main/java/me/chanjar/weixin/cp/api/WxCpTpService.java b/weixin-java-cp/src/main/java/me/chanjar/weixin/cp/api/WxCpTpService.java
index 40ffcf55e..edc2f552c 100644
--- a/weixin-java-cp/src/main/java/me/chanjar/weixin/cp/api/WxCpTpService.java
+++ b/weixin-java-cp/src/main/java/me/chanjar/weixin/cp/api/WxCpTpService.java
@@ -15,7 +15,6 @@ import me.chanjar.weixin.cp.config.WxCpTpConfigStorage;
  * @author zhenjun cai
  */
 public interface WxCpTpService {
-
   /**
    * <pre>
    * 验证推送过来的消息的正确性
@@ -84,15 +83,15 @@ public interface WxCpTpService {
   WxAccessToken getCorpToken(String authCorpid, String permanentCode) throws WxErrorException;
 
   /**
-   * 获取企业永久授权码
+   * 获取企业永久授权码 .
    *
-   * @param authCode
-   * @return
+   * @param authCode .
+   * @return .
    */
   WxCpTpCorp getPermanentCode(String authCode) throws WxErrorException;
 
   /**
-   * 当本Service没有实现某个API的时候，可以用这个，针对所有微信API中的GET请求
+   * 当本Service没有实现某个API的时候，可以用这个，针对所有微信API中的GET请求.
    *
    * @param url        接口地址
    * @param queryParam 请求参数
@@ -100,7 +99,7 @@ public interface WxCpTpService {
   String get(String url, String queryParam) throws WxErrorException;
 
   /**
-   * 当本Service没有实现某个API的时候，可以用这个，针对所有微信API中的POST请求
+   * 当本Service没有实现某个API的时候，可以用这个，针对所有微信API中的POST请求.
    *
    * @param url      接口地址
    * @param postData 请求body字符串
@@ -124,7 +123,7 @@ public interface WxCpTpService {
 
   /**
    * <pre>
-   * 设置当微信系统响应系统繁忙时，要等待多少 retrySleepMillis(ms) * 2^(重试次数 - 1) 再发起重试
+   * 设置当微信系统响应系统繁忙时，要等待多少 retrySleepMillis(ms) * 2^(重试次数 - 1) 再发起重试.
    * 默认：1000ms
    * </pre>
    *
@@ -134,7 +133,7 @@ public interface WxCpTpService {
 
   /**
    * <pre>
-   * 设置当微信系统响应系统繁忙时，最大重试次数
+   * 设置当微信系统响应系统繁忙时，最大重试次数.
    * 默认：5次
    * </pre>
    *
@@ -148,21 +147,21 @@ public interface WxCpTpService {
   void initHttp();
 
   /**
-   * 获取WxMpConfigStorage 对象
+   * 获取WxMpConfigStorage 对象.
    *
    * @return WxMpConfigStorage
    */
   WxCpTpConfigStorage getWxCpTpConfigStorage();
 
   /**
-   * 注入 {@link WxCpTpConfigStorage} 的实现
+   * 注入 {@link WxCpTpConfigStorage} 的实现.
    *
    * @param wxConfigProvider 配置对象
    */
   void setWxCpTpConfigStorage(WxCpTpConfigStorage wxConfigProvider);
 
   /**
-   * http请求对象
+   * http请求对象.
    */
   RequestHttp<?, ?> getRequestHttp();
 
diff --git a/weixin-java-cp/src/main/java/me/chanjar/weixin/cp/api/impl/BaseWxCpTpServiceImpl.java b/weixin-java-cp/src/main/java/me/chanjar/weixin/cp/api/impl/BaseWxCpTpServiceImpl.java
index a0585af12..dbf4dabf3 100644
--- a/weixin-java-cp/src/main/java/me/chanjar/weixin/cp/api/impl/BaseWxCpTpServiceImpl.java
+++ b/weixin-java-cp/src/main/java/me/chanjar/weixin/cp/api/impl/BaseWxCpTpServiceImpl.java
@@ -25,6 +25,8 @@ import java.io.IOException;
 import java.util.HashMap;
 import java.util.Map;
 
+import static me.chanjar.weixin.cp.constant.WxCpApiPathConsts.Tp.*;
+
 /**
  * .
  *
@@ -95,7 +97,7 @@ public abstract class BaseWxCpTpServiceImpl<H, P> implements WxCpTpService, Requ
     params.put("js_code", jsCode);
     params.put("grant_type", "authorization_code");
 
-    final String url = configStorage.getApiUrl(WxCpApiPathConsts.Tp.JSCODE_TO_SESSION);
+    final String url = configStorage.getApiUrl(JSCODE_TO_SESSION);
     return WxCpMaJsCode2SessionResult.fromJson(this.get(url, Joiner.on("&").withKeyValueSeparator("=").join(params)));
   }
 
@@ -105,20 +107,19 @@ public abstract class BaseWxCpTpServiceImpl<H, P> implements WxCpTpService, Requ
     JsonObject jsonObject = new JsonObject();
     jsonObject.addProperty("auth_corpid", authCorpid);
     jsonObject.addProperty("permanent_code", permanentCode);
-    String result = post(configStorage.getApiUrl(WxCpApiPathConsts.Tp.GET_CORP_TOKEN), jsonObject.toString());
+    String result = post(configStorage.getApiUrl(GET_CORP_TOKEN), jsonObject.toString());
 
     return WxAccessToken.fromJson(result);
   }
 
-
   @Override
   public WxCpTpCorp getPermanentCode(String authCode) throws WxErrorException {
     JsonObject jsonObject = new JsonObject();
     jsonObject.addProperty("auth_code", authCode);
 
-    String result = post(configStorage.getApiUrl(WxCpApiPathConsts.Tp.GET_PERMANENT_CODE), jsonObject.toString());
+    String result = post(configStorage.getApiUrl(GET_PERMANENT_CODE), jsonObject.toString());
     jsonObject = new JsonParser().parse(result).getAsJsonObject();
-    WxCpTpCorp wxCpTpCorp = WxCpTpCorp.fromJson(jsonObject.get("auth_corp_info").getAsString());
+    WxCpTpCorp wxCpTpCorp = WxCpTpCorp.fromJson(jsonObject.get("auth_corp_info").getAsJsonObject().toString());
     wxCpTpCorp.setPermanentCode(jsonObject.get("permanent_code").getAsString());
     return wxCpTpCorp;
   }
diff --git a/weixin-java-cp/src/test/java/me/chanjar/weixin/cp/api/impl/BaseWxCpTpServiceImplTest.java b/weixin-java-cp/src/test/java/me/chanjar/weixin/cp/api/impl/BaseWxCpTpServiceImplTest.java
new file mode 100644
index 000000000..5de54f545
--- /dev/null
+++ b/weixin-java-cp/src/test/java/me/chanjar/weixin/cp/api/impl/BaseWxCpTpServiceImplTest.java
@@ -0,0 +1,172 @@
+package me.chanjar.weixin.cp.api.impl;
+
+import com.google.gson.JsonObject;
+import me.chanjar.weixin.common.error.WxErrorException;
+import me.chanjar.weixin.cp.api.WxCpService;
+import me.chanjar.weixin.cp.api.WxCpTpService;
+import me.chanjar.weixin.cp.bean.WxCpTpCorp;
+import me.chanjar.weixin.cp.config.WxCpTpConfigStorage;
+import me.chanjar.weixin.cp.config.impl.WxCpTpDefaultConfigImpl;
+import me.chanjar.weixin.cp.constant.WxCpApiPathConsts;
+import org.testng.annotations.Test;
+
+import static me.chanjar.weixin.cp.constant.WxCpApiPathConsts.Tp.GET_PERMANENT_CODE;
+import static org.assertj.core.api.Assertions.assertThat;
+import static org.mockito.Matchers.any;
+import static org.mockito.Matchers.anyString;
+import static org.mockito.Mockito.*;
+import static org.testng.Assert.*;
+
+/**
+ * 测试代码.
+ *
+ * @author <a href="https://github.com/binarywang">Binary Wang</a>
+ * @date 2019-08-18
+ */
+public class BaseWxCpTpServiceImplTest {
+  private WxCpTpService tpService = spy(new WxCpTpServiceImpl());
+
+  @Test
+  public void testCheckSignature() {
+  }
+
+  @Test
+  public void testGetSuiteAccessToken() {
+  }
+
+  @Test
+  public void testGetSuiteTicket() {
+  }
+
+  @Test
+  public void testTestGetSuiteTicket() {
+  }
+
+  @Test
+  public void testJsCode2Session() {
+  }
+
+  @Test
+  public void testGetCorpToken() {
+  }
+
+  @Test
+  public void testGetPermanentCode() throws WxErrorException {
+    String returnJson = "{\n" +
+      "    \"errcode\":0 ,\n" +
+      "    \"errmsg\":\"ok\" ,\n" +
+      "    \"access_token\": \"xxxxxx\", \n" +
+      "    \"expires_in\": 7200, \n" +
+      "    \"permanent_code\": \"xxxx\", \n" +
+      "    \"dealer_corp_info\": \n" +
+      "    {\n" +
+      "        \"corpid\": \"xxxx\",\n" +
+      "        \"corp_name\": \"name\"\n" +
+      "    },\n" +
+      "    \"auth_corp_info\": \n" +
+      "    {\n" +
+      "        \"corpid\": \"xxxx\",\n" +
+      "        \"corp_name\": \"name\",\n" +
+      "        \"corp_type\": \"verified\",\n" +
+      "        \"corp_square_logo_url\": \"yyyyy\",\n" +
+      "        \"corp_user_max\": 50,\n" +
+      "        \"corp_agent_max\": 30,\n" +
+      "        \"corp_full_name\":\"full_name\",\n" +
+      "        \"verified_end_time\":1431775834,\n" +
+      "        \"subject_type\": 1,\n" +
+      "        \"corp_wxqrcode\": \"zzzzz\",\n" +
+      "        \"corp_scale\": \"1-50人\",\n" +
+      "        \"corp_industry\": \"IT服务\",\n" +
+      "        \"corp_sub_industry\": \"计算机软件/硬件/信息服务\",\n" +
+      "        \"location\":\"广东省广州市\"\n" +
+      "    },\n" +
+      "    \"auth_info\":\n" +
+      "    {\n" +
+      "        \"agent\" :\n" +
+      "        [\n" +
+      "            {\n" +
+      "                \"agentid\":1,\n" +
+      "                \"name\":\"NAME\",\n" +
+      "                \"round_logo_url\":\"xxxxxx\",\n" +
+      "                \"square_logo_url\":\"yyyyyy\",\n" +
+      "                \"appid\":1,\n" +
+      "                \"privilege\":\n" +
+      "                {\n" +
+      "                    \"level\":1,\n" +
+      "                    \"allow_party\":[1,2,3],\n" +
+      "                    \"allow_user\":[\"zhansan\",\"lisi\"],\n" +
+      "                    \"allow_tag\":[1,2,3],\n" +
+      "                    \"extra_party\":[4,5,6],\n" +
+      "                    \"extra_user\":[\"wangwu\"],\n" +
+      "                    \"extra_tag\":[4,5,6]\n" +
+      "                }\n" +
+      "            },\n" +
+      "            {\n" +
+      "                \"agentid\":2,\n" +
+      "                \"name\":\"NAME2\",\n" +
+      "                \"round_logo_url\":\"xxxxxx\",\n" +
+      "                \"square_logo_url\":\"yyyyyy\",\n" +
+      "                \"appid\":5\n" +
+      "            }\n" +
+      "        ]\n" +
+      "    },\n" +
+      "    \"auth_user_info\":\n" +
+      "    {\n" +
+      "        \"userid\":\"aa\",\n" +
+      "        \"name\":\"xxx\",\n" +
+      "        \"avatar\":\"http://xxx\"\n" +
+      "    }\n" +
+      "}\n";
+
+    final WxCpTpConfigStorage configStorage = new WxCpTpDefaultConfigImpl();
+    tpService.setWxCpTpConfigStorage(configStorage);
+
+    JsonObject jsonObject = new JsonObject();
+    String authCode = "";
+    jsonObject.addProperty("auth_code", authCode);
+    doReturn(returnJson).when(tpService).post(configStorage.getApiUrl(GET_PERMANENT_CODE), jsonObject.toString());
+
+    final WxCpTpCorp tpCorp = tpService.getPermanentCode(authCode);
+    assertThat(tpCorp.getPermanentCode()).isEqualTo("xxxx");
+  }
+
+  @Test
+  public void testGet() {
+  }
+
+  @Test
+  public void testPost() {
+  }
+
+  @Test
+  public void testExecute() {
+  }
+
+  @Test
+  public void testExecuteInternal() {
+  }
+
+  @Test
+  public void testSetWxCpTpConfigStorage() {
+  }
+
+  @Test
+  public void testSetRetrySleepMillis() {
+  }
+
+  @Test
+  public void testSetMaxRetryTimes() {
+  }
+
+  @Test
+  public void testGetTmpDirFile() {
+  }
+
+  @Test
+  public void testSetTmpDirFile() {
+  }
+
+  @Test
+  public void testGetRequestHttp() {
+  }
+}