| /* |
| * 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.commons.vfs2; |
| |
| import java.io.OutputStream; |
| import java.nio.charset.StandardCharsets; |
| |
| import org.junit.Test; |
| |
| /** |
| * File system test that check that a file system can be modified. |
| */ |
| public class ProviderWriteAppendTests extends AbstractProviderTestCase { |
| /** |
| * Returns the capabilities required by the tests of this test case. |
| */ |
| @Override |
| protected Capability[] getRequiredCapabilities() { |
| return new Capability[] { Capability.CREATE, Capability.DELETE, Capability.GET_TYPE, Capability.LIST_CHILDREN, |
| Capability.READ_CONTENT, Capability.WRITE_CONTENT, Capability.APPEND_CONTENT }; |
| } |
| |
| /** |
| * Sets up a scratch folder for the test to use. |
| */ |
| protected FileObject createScratchFolder() throws Exception { |
| final FileObject scratchFolder = getWriteFolder(); |
| |
| // Make sure the test folder is empty |
| scratchFolder.delete(Selectors.EXCLUDE_SELF); |
| scratchFolder.createFolder(); |
| |
| return scratchFolder; |
| } |
| |
| /** |
| * Tests create-delete-create-a-file sequence on the same file system. |
| */ |
| @Test |
| public void testAppendContent() throws Exception { |
| final FileObject scratchFolder = createScratchFolder(); |
| |
| // Create direct child of the test folder |
| final FileObject file = scratchFolder.resolveFile("file1.txt"); |
| assertFalse(file.exists()); |
| |
| // Create the source file |
| final String content = "Here is some sample content for the file. Blah Blah Blah."; |
| final String contentAppend = content + content; |
| |
| try (OutputStream os = file.getContent().getOutputStream()) { |
| os.write(content.getBytes(StandardCharsets.UTF_8)); |
| } |
| assertSameContent(content, file); |
| |
| // Append to the new file |
| try (OutputStream os2 = file.getContent().getOutputStream(true)) { |
| os2.write(content.getBytes(StandardCharsets.UTF_8)); |
| } |
| assertSameContent(contentAppend, file); |
| |
| // Make sure we can copy the new file to another file on the same filesystem |
| final FileObject fileCopy = scratchFolder.resolveFile("file1copy.txt"); |
| assertFalse(fileCopy.exists()); |
| fileCopy.copyFrom(file, Selectors.SELECT_SELF); |
| |
| assertSameContent(contentAppend, fileCopy); |
| |
| // Delete the file. |
| assertTrue(fileCopy.exists()); |
| assertTrue(fileCopy.delete()); |
| } |
| } |