Java tutorial
/* * Copyright 2019 StreamSets Inc. * * Licensed 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 com.streamsets.pipeline.lib.remote; import org.apache.commons.vfs2.FileContent; import org.apache.commons.vfs2.FileName; import org.apache.commons.vfs2.FileObject; import org.junit.Assert; import org.junit.Test; import org.mockito.Mockito; import java.io.IOException; public class TestFTPRemoteFile { @Test public void testCreateAndCommitOutputStream() throws Exception { String name = "file.txt"; String filePath = "/some/path/"; FileObject fileObject = Mockito.mock(FileObject.class); FileName fileName = Mockito.mock(FileName.class); Mockito.when(fileObject.getName()).thenReturn(fileName); Mockito.when(fileName.getBaseName()).thenReturn(name); FileObject parentFileObject = Mockito.mock(FileObject.class); FileObject tempFileObject = Mockito.mock(FileObject.class); Mockito.when(fileObject.getParent()).thenReturn(parentFileObject); Mockito.when(parentFileObject.resolveFile(Mockito.any())).thenReturn(tempFileObject); FileContent tempFileContent = Mockito.mock(FileContent.class); Mockito.when(tempFileObject.getContent()).thenReturn(tempFileContent); FTPRemoteFile file = new FTPRemoteFile(filePath + name, 0L, fileObject); try { file.commitOutputStream(); Assert.fail("Expected IOException because called commitOutputStream before createOutputStream"); } catch (IOException ioe) { Assert.assertEquals("Cannot commit " + filePath + name + " - it must be written first", ioe.getMessage()); } file.createOutputStream(); Mockito.verify(parentFileObject).resolveFile("_tmp_" + name); Mockito.verify(tempFileContent).getOutputStream(); file.commitOutputStream(); Mockito.verify(tempFileObject).moveTo(fileObject); } }