微信支付接口代码拉出到单独类中维护，单元测试暂时未完成

weixin-java-mp/src/test/java/me/chanjar/weixin/mp/api/impl/WxMpPayServiceImplTest.java

@@ -0,0 +1,60 @@
+package me.chanjar.weixin.mp.api.impl;
+
+import org.testng.annotations.Test;
+
+/**
+ * Created by Binary Wang on 2016/7/28.
+ * @author binarywang (https://github.com/binarywang)
+ */
+public class WxMpPayServiceImplTest {
+  @Test
+  public void testGetPrepayId() throws Exception {
+
+  }
+
+  @Test
+  public void testGetPrepayId1() throws Exception {
+
+  }
+
+  @Test
+  public void testGetJsapiPayInfo() throws Exception {
+
+  }
+
+  @Test
+  public void testGetNativePayInfo() throws Exception {
+
+  }
+
+  @Test
+  public void testGetPayInfo() throws Exception {
+
+  }
+
+  @Test
+  public void testGetJSSDKPayResult() throws Exception {
+
+  }
+
+  @Test
+  public void testGetJSSDKCallbackData() throws Exception {
+
+  }
+
+  @Test
+  public void testRefundPay() throws Exception {
+
+  }
+
+  @Test
+  public void testCheckJSSDKCallbackDataSignature() throws Exception {
+
+  }
+
+  @Test
+  public void testSendRedpack() throws Exception {
+
+  }
+
+}