更新报错为英文描述，更新开发者文档建议编写测试用例

更新报错为英文描述，更新开发者文档建议编写测试用例

datax-example/src/main/java/com/alibaba/datax/example/util/ExampleConfigParser.java

@@ -55,16 +55,17 @@ public class ExampleConfigParser {
         }
         if (!pluginTypeMap.isEmpty()) {
             String failedPlugin = pluginTypeMap.keySet().toString();
-            String message = "\n插件%s加载失败：尝试从以下方面分析原因。\n" +
+            String message = "\nplugin %s load failed ：ry to analyze the reasons from the following aspects.。\n" +
-                    "1: 检查插件的名字是否书写正确\n" +
+                    "1: Check if the name of the plugin is spelled correctly, and verify whether DataX supports this plugin\n" +
-                    "2：相关插件的pom文件的<build></build>下是否已经添加了 <resource>\n" +
+                    "2：Verify if the <resource></resource> tag has been added under <build></build> section in the pom file of the relevant plugin.\n<resource>" +
                     "                <directory>src/main/resources</directory>\n" +
                     "                <includes>\n" +
                     "                    <include>**/*.*</include>\n" +
                     "                </includes>\n" +
                     "                <filtering>true</filtering>\n" +
                     "            </resource>\n [可参阅streamreader pom文件] \n" +
-                    "3：如果你是以datax-example为启动模块，example模块是否导入了插件的依赖。参开example的pom文件";
+                    "3：If you are using 'datax-example' as the startup module, " +
+                    "check whether the 'example' module has imported the dependencies of the plugin. Refer to the 'pom' file of the 'example' module";
             message = String.format(message, failedPlugin);
             throw DataXException.asDataXException(FrameworkErrorCode.PLUGIN_INIT_ERROR, message);
         }

datax-example/src/main/java/com/alibaba/datax/example/util/PathUtil.java

@@ -15,10 +15,11 @@ public class PathUtil {
     public static String getAbsolutePathFromClassPath(String path) {
         URL resource = PathUtil.class.getResource(path);
         try {
+            assert resource != null;
             URI uri = resource.toURI();
             return Paths.get(uri).toString();
         } catch (NullPointerException | URISyntaxException e) {
-            throw DataXException.asDataXException("path 路径错误");
+            throw DataXException.asDataXException("path error,please check whether the path is correct");
         }
 
     }

datax-example/src/test/java/com/alibaba/datax/example/DataXExampleTest.java

@@ -1,16 +0,0 @@
-package com.alibaba.datax.example;
-
-
-import com.alibaba.datax.example.util.PathUtil;
-import org.junit.Test;
-
-
-public class DataXExampleTest {
-
-    @Test
-    public void testStreamReader2StreamWriter() {
-        String path = "/job/stream2stream.json";
-        String jobPath = PathUtil.getAbsolutePathFromClassPath(path);
-        ExampleContainer.start(jobPath);
-    }
-}

datax-example/src/test/java/com/alibaba/datax/example/streamreader/StreamReader2StreamWriterTest.java

@@ -0,0 +1,19 @@
+package com.alibaba.datax.example.streamreader;
+
+import com.alibaba.datax.example.ExampleContainer;
+import com.alibaba.datax.example.util.PathUtil;
+import org.junit.Test;
+
+/**
+ * {@code Author} FuYouJ
+ * {@code Date} 2023/8/14 20:16
+ */
+
+public class StreamReader2StreamWriterTest {
+    @Test
+    public void testStreamReader2StreamWriter() {
+        String path = "/job/stream/stream2stream.json";
+        String jobPath = PathUtil.getAbsolutePathFromClassPath(path);
+        ExampleContainer.start(jobPath);
+    }
+}

dataxPluginDev.md

@@ -447,6 +447,10 @@ DataX的内部类型在实现上会选用不同的java类型：
 3. 用户在插件中在`reader`/`writer`配置的`name`字段指定插件名字。框架根据插件的类型（`reader`/`writer`）和插件名称去插件的路径下扫描所有的jar，加入`classpath`。
 4. 根据插件配置中定义的入口类，框架通过反射实例化对应的`Job`和`Task`对象。
 
+### 编写测试用例
+1. 你可以在你的插件模块引入datax-example模块,调用`ExampleContainer.start(jobPath)`方法来检测你的代码逻辑是否正确。[datax-example使用](https://github.com/alibaba/DataX/datax-example/doc/README.md)
+2. 你可以在datax-example模块引入你的插件模块，编写测试方法调用`ExampleContainer.start(jobPath)`方法来检测你的代码逻辑是否正确。[datax-example使用](https://github.com/alibaba/DataX/datax-example/doc/README.md)
+
 
 ## 三、Last but not Least