Add UT

seatunnel-connectors-v2/connector-file/connector-file-sftp/src/test/java/org/apache/seatunnel/connectors/seatunnel/file/sftp/system/SftpFileSystemTest.java

@@ -0,0 +1,41 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements.  See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF licenses this file to You under the Apache License, Version 2.0
+ * (the "License"); you may not use this file except in compliance with
+ * the License.  You may obtain a copy of the License at
+ *
+ *    http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package org.apache.seatunnel.connectors.seatunnel.file.sftp.system;
+
+import org.junit.jupiter.api.Assertions;
+import org.junit.jupiter.api.Test;
+
+class SftpFileSystemTest {
+
+    @Test
+    void convertAllTypeFileName() {
+        SFTPFileSystem sftpFileSystem = new SFTPFileSystem();
+        Assertions.assertEquals(
+                "/home/seatunnel/tmp/seatunnel/read/wildcard/e2e.txt",
+                sftpFileSystem.quote("/home/seatunnel/tmp/seatunnel/read/wildcard/e2e.txt"));
+        // test file name with wildcard '*'
+        Assertions.assertEquals(
+                "/home/seatunnel/tmp/seatunnel/read/wildcard/e\\*e.txt",
+                sftpFileSystem.quote("/home/seatunnel/tmp/seatunnel/read/wildcard/e*e.txt"));
+
+        // test file name with wildcard '?'
+        Assertions.assertEquals(
+                "/home/seatunnel/tmp/seatunnel/read/wildcard/e\\?e.txt",
+                sftpFileSystem.quote("/home/seatunnel/tmp/seatunnel/read/wildcard/e?e.txt"));
+    }
+}