[ISSUE alibaba#11967] Can not aquire the specific config

config/src/test/java/com/alibaba/nacos/config/server/service/dump/disk/ConfigRawDiskServiceTest.java

@@ -33,6 +33,7 @@ public class ConfigRawDiskServiceTest extends TestCase {
  @Before
  public void setUp() throws Exception {
  cachedOsName = System.getProperty("os.name");
+ System.setProperty("os.name", "window");
  }
 
  @After
@@ -41,10 +42,9 @@ public void tearDown() throws Exception {
  }
 
  /**
- * 测试获取beta文件路径.
+ * 测试获取文件路径.
  */
  public void testTargetFile() throws NoSuchMethodException, IllegalAccessException, InvocationTargetException {
- System.setProperty("os.name", "window");
  Method method = ConfigRawDiskService.class.getDeclaredMethod("targetFile", String.class, String.class, String.class);
  method.setAccessible(true);
  File result = (File) method.invoke(null, "aaaa\\dsaknkf", "aaaa/dsaknkf", "aaaa:dsaknkf");
@@ -65,7 +65,6 @@ public void testTargetFile() throws NoSuchMethodException, IllegalAccessExceptio
  * 测试获取beta文件路径.
  */
  public void testTargetBetaFile() throws NoSuchMethodException, IllegalAccessException, InvocationTargetException {
- System.setProperty("os.name", "window");
  Method method = ConfigRawDiskService.class.getDeclaredMethod("targetBetaFile", String.class, String.class, String.class);
  method.setAccessible(true);
  File result = (File) method.invoke(null, "aaaa\\dsaknkf", "aaaa/dsaknkf", "aaaa:dsaknkf");
@@ -90,7 +89,6 @@ public void testTargetBetaFile() throws NoSuchMethodException, IllegalAccessExce
  * @throws InvocationTargetException 目标异常
  */
  public void testTargetTagFile() throws NoSuchMethodException, IllegalAccessException, InvocationTargetException {
- System.setProperty("os.name", "window");
  Method method = ConfigRawDiskService.class.getDeclaredMethod("targetTagFile", String.class, String.class, String.class, String.class);
  method.setAccessible(true);
  File result = (File) method.invoke(null, "aaaa\\dsaknkf", "aaaa/dsaknkf", "aaaa:dsaknkf", "aaaadsaknkf");