optimize: optimize ParameterParserTest test case failed (#3365)

server/src/main/java/io/seata/server/ParameterParser.java

@@ -24,14 +24,14 @@ import io.seata.config.ConfigurationFactory;
 import io.seata.core.constants.ConfigurationKeys;
 import io.seata.server.env.ContainerHelper;
 
-import static io.seata.config.ConfigurationFactory.ENV_PROPERTY_KEY;
 import static io.seata.common.DefaultValues.SERVER_DEFAULT_PORT;
 import static io.seata.common.DefaultValues.SERVER_DEFAULT_STORE_MODE;
+import static io.seata.config.ConfigurationFactory.ENV_PROPERTY_KEY;
 
 /**
  * The type Parameter parser.
  *
- * @author xingfudeshi@gmail.com
+ * @author xingfudeshi @gmail.com
  */
 public class ParameterParser {
 
@@ -51,6 +51,7 @@ public class ParameterParser {
     @Parameter(names = {"--seataEnv", "-e"}, description = "The name used for multi-configuration isolation.",
         order = 5)
     private String seataEnv;
+
     /**
      * Instantiates a new Parameter parser.
      *
@@ -154,4 +155,13 @@ public class ParameterParser {
         return seataEnv;
     }
 
+    /**
+     * Clean up.
+     */
+    public void cleanUp() {
+        if (null != System.getProperty(ENV_PROPERTY_KEY)) {
+            System.clearProperty(ENV_PROPERTY_KEY);
+        }
+    }
+
 }

server/src/test/java/io/seata/server/ParameterParserTest.java

@@ -43,6 +43,7 @@ public class ParameterParserTest {
     @Test
     public void testEmptyMode() {
         String[] args = new String[] {"-h", "127.0.0.1", "-p", "8088"};
+        parameterParser.cleanUp();
         parameterParser = new ParameterParser(args);
         //always set store.mode=file in test/resource/file.conf, if not will cause SessionStoreTest's case fail.
         Assertions.assertEquals("file", parameterParser.getStoreMode());
@@ -85,7 +86,10 @@ public class ParameterParserTest {
      */
     @AfterEach
     public void cleanUp() {
-        parameterParser = null;
+        if (null != parameterParser) {
+            parameterParser.cleanUp();
+            parameterParser = null;
+        }
     }
 
 }